diff --git a/app/Generator/Chart/Account/AccountChartGenerator.php b/app/Generator/Chart/Account/AccountChartGenerator.php
index 79b36e4bab..b43145f761 100644
--- a/app/Generator/Chart/Account/AccountChartGenerator.php
+++ b/app/Generator/Chart/Account/AccountChartGenerator.php
@@ -1,9 +1,10 @@
 <?php
 
 namespace FireflyIII\Generator\Chart\Account;
+
+use Carbon\Carbon;
 use FireflyIII\Models\Account;
 use Illuminate\Support\Collection;
-use Carbon\Carbon;
 
 /**
  * Interface AccountChartGenerator
diff --git a/app/Generator/Chart/Bill/BillChartGenerator.php b/app/Generator/Chart/Bill/BillChartGenerator.php
new file mode 100644
index 0000000000..6f57bfa724
--- /dev/null
+++ b/app/Generator/Chart/Bill/BillChartGenerator.php
@@ -0,0 +1,32 @@
+<?php
+namespace FireflyIII\Generator\Chart\Bill;
+
+
+use FireflyIII\Models\Bill;
+use Illuminate\Support\Collection;
+
+/**
+ * Interface BillChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\Bill
+ */
+interface BillChartGenerator
+{
+
+    /**
+     * @param Bill       $bill
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function single(Bill $bill, Collection $entries);
+
+    /**
+     * @param Collection $paid
+     * @param Collection $unpaid
+     *
+     * @return array
+     */
+    public function frontpage(Collection $paid, Collection $unpaid);
+
+}
\ No newline at end of file
diff --git a/app/Generator/Chart/Bill/GoogleBillChartGenerator.php b/app/Generator/Chart/Bill/GoogleBillChartGenerator.php
new file mode 100644
index 0000000000..eedf14f77f
--- /dev/null
+++ b/app/Generator/Chart/Bill/GoogleBillChartGenerator.php
@@ -0,0 +1,87 @@
+<?php
+
+namespace FireflyIII\Generator\Chart\Bill;
+
+use FireflyIII\Models\Bill;
+use FireflyIII\Models\TransactionJournal;
+use Grumpydictator\Gchart\GChart;
+use Illuminate\Support\Collection;
+
+/**
+ * Class GoogleBillChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\Bill
+ */
+class GoogleBillChartGenerator implements BillChartGenerator
+{
+
+
+    /**
+     * @param Collection $paid
+     * @param Collection $unpaid
+     *
+     * @return array
+     */
+    public function frontpage(Collection $paid, Collection $unpaid)
+    {
+        // loop paid and create single entry:
+        $paidDescriptions   = [];
+        $paidAmount         = 0;
+        $unpaidDescriptions = [];
+        $unpaidAmount       = 0;
+
+
+        /** @var TransactionJournal $entry */
+        foreach ($paid as $entry) {
+
+            $paidDescriptions[] = $entry->description;
+            $paidAmount += floatval($entry->amount);
+        }
+
+        // loop unpaid:
+        /** @var Bill $entry */
+        foreach ($unpaid as $entry) {
+            $description          = $entry[0]->name . ' (' . $entry[1]->format('jS M Y') . ')';
+            $amount               = ($entry[0]->amount_max + $entry[0]->amount_min) / 2;
+            $unpaidDescriptions[] = $description;
+            $unpaidAmount += $amount;
+            unset($amount, $description);
+        }
+
+        $chart = new GChart;
+        $chart->addColumn(trans('firefly.name'), 'string');
+        $chart->addColumn(trans('firefly.amount'), 'number');
+
+        $chart->addRow(trans('firefly.unpaid') . ': ' . join(', ', $unpaidDescriptions), $unpaidAmount);
+        $chart->addRow(trans('firefly.paid') . ': ' . join(', ', $paidDescriptions), $paidAmount);
+
+        $chart->generate();
+
+        return $chart->getData();
+    }
+
+    /**
+     * @param Bill       $bill
+     * @param Collection $entries
+     *
+     * @return mixed
+     */
+    public function single(Bill $bill, Collection $entries)
+    {
+        // make chart:
+        $chart = new GChart;
+        $chart->addColumn(trans('firefly.date'), 'date');
+        $chart->addColumn(trans('firefly.maxAmount'), 'number');
+        $chart->addColumn(trans('firefly.minAmount'), 'number');
+        $chart->addColumn(trans('firefly.billEntry'), 'number');
+
+        /** @var TransactionJournal $result */
+        foreach ($entries as $result) {
+            $chart->addRow(clone $result->date, floatval($bill->amount_max), floatval($bill->amount_min), floatval($result->amount));
+        }
+
+        $chart->generate();
+
+        return $chart->getData();
+    }
+}
\ No newline at end of file
diff --git a/app/Generator/Chart/Budget/BudgetChartGenerator.php b/app/Generator/Chart/Budget/BudgetChartGenerator.php
new file mode 100644
index 0000000000..2a9033ed00
--- /dev/null
+++ b/app/Generator/Chart/Budget/BudgetChartGenerator.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace FireflyIII\Generator\Chart\Budget;
+
+use Illuminate\Support\Collection;
+
+/**
+ * Interface BudgetChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\Budget
+ */
+interface BudgetChartGenerator
+{
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function budget(Collection $entries);
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function budgetLimit(Collection $entries);
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function frontpage(Collection $entries);
+
+    /**
+     * @param Collection $budgets
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function year(Collection $budgets, Collection $entries);
+
+}
\ No newline at end of file
diff --git a/app/Generator/Chart/Budget/GoogleBudgetChartGenerator.php b/app/Generator/Chart/Budget/GoogleBudgetChartGenerator.php
new file mode 100644
index 0000000000..ab4358a71d
--- /dev/null
+++ b/app/Generator/Chart/Budget/GoogleBudgetChartGenerator.php
@@ -0,0 +1,110 @@
+<?php
+
+namespace FireflyIII\Generator\Chart\Budget;
+
+use Grumpydictator\Gchart\GChart;
+use Illuminate\Support\Collection;
+
+/**
+ * Class GoogleBudgetChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\Budget
+ */
+class GoogleBudgetChartGenerator implements BudgetChartGenerator
+{
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function budget(Collection $entries)
+    {
+
+        $chart = new GChart;
+        $chart->addColumn(trans('firefly.period'), 'date');
+        $chart->addColumn(trans('firefly.spent'), 'number');
+
+        /** @var array $entry */
+        foreach ($entries as $entry) {
+            $chart->addRow($entry[0], $entry[1]);
+        }
+
+        $chart->generate();
+
+        return $chart->getData();
+    }
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function budgetLimit(Collection $entries)
+    {
+        $chart = new GChart;
+        $chart->addColumn(trans('firefly.day'), 'date');
+        $chart->addColumn(trans('firefly.left'), 'number');
+
+        foreach ($entries as $entry) {
+
+            $chart->addRow($entry[0], $entry[1]);
+        }
+        $chart->generate();
+
+        return $chart->getData();
+    }
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function frontpage(Collection $entries)
+    {
+        $chart = new GChart;
+        $chart->addColumn(trans('firefly.budget'), 'string');
+        $chart->addColumn(trans('firefly.left'), 'number');
+        $chart->addColumn(trans('firefly.spent'), 'number');
+        $chart->addColumn(trans('firefly.overspent'), 'number');
+
+        /** @var array $entry */
+        foreach ($entries as $entry) {
+            if ($entry[1] != 0 || $entry[2] != 0 || $entry[3] != 0) {
+                $chart->addRow($entry[0], $entry[1], $entry[2], $entry[3]);
+            }
+        }
+
+
+        $chart->generate();
+
+        return $chart->getData();
+
+    }
+
+    /**
+     * @param Collection $budgets
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function year(Collection $budgets, Collection $entries)
+    {
+        $chart = new GChart;
+        // add columns:
+        $chart->addColumn(trans('firefly.month'), 'date');
+        foreach ($budgets as $budget) {
+            $chart->addColumn($budget->name, 'number');
+        }
+
+        /** @var array $entry */
+        foreach ($entries as $entry) {
+
+            $chart->addRowArray($entry);
+        }
+
+        $chart->generate();
+
+        return $chart->getData();
+    }
+}
\ No newline at end of file
diff --git a/app/Generator/Chart/Category/CategoryChartGenerator.php b/app/Generator/Chart/Category/CategoryChartGenerator.php
new file mode 100644
index 0000000000..bd0a30e5e7
--- /dev/null
+++ b/app/Generator/Chart/Category/CategoryChartGenerator.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace FireflyIII\Generator\Chart\Category;
+
+use Illuminate\Support\Collection;
+
+/**
+ * Interface CategoryChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\Category
+ */
+interface CategoryChartGenerator
+{
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function all(Collection $entries);
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function frontpage(Collection $entries);
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function month(Collection $entries);
+
+
+    /**
+     * @param Collection $categories
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function year(Collection $categories, Collection $entries);
+}
\ No newline at end of file
diff --git a/app/Generator/Chart/Category/GoogleCategoryChartGenerator.php b/app/Generator/Chart/Category/GoogleCategoryChartGenerator.php
new file mode 100644
index 0000000000..1b67e98dea
--- /dev/null
+++ b/app/Generator/Chart/Category/GoogleCategoryChartGenerator.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace FireflyIII\Generator\Chart\Category;
+
+use Grumpydictator\Gchart\GChart;
+use Illuminate\Support\Collection;
+
+/**
+ * Class GoogleCategoryChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\Category
+ */
+class GoogleCategoryChartGenerator implements CategoryChartGenerator
+{
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function all(Collection $entries)
+    {
+        $chart = new GChart;
+        $chart->addColumn(trans('firefly.period'), 'date');
+        $chart->addColumn(trans('firefly.spent'), 'number');
+
+        /** @var array $entry */
+        foreach ($entries as $entry) {
+            $chart->addRow($entry[0], $entry[1]);
+        }
+
+        $chart->generate();
+
+        return $chart->getData();
+    }
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function frontpage(Collection $entries)
+    {
+        $chart = new GChart;
+        $chart->addColumn(trans('firefly.category'), 'string');
+        $chart->addColumn(trans('firefly.spent'), 'number');
+
+
+        /** @var array $entry */
+        foreach ($entries as $entry) {
+            $sum = $entry['sum'];
+            if ($sum != 0) {
+                $chart->addRow($entry['name'], $sum);
+            }
+        }
+
+        $chart->generate();
+
+        return $chart->getData();
+    }
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function month(Collection $entries)
+    {
+        $chart = new GChart;
+
+        $chart->addColumn(trans('firefly.period'), 'date');
+        $chart->addColumn(trans('firefly.spent'), 'number');
+
+        /** @var array $entry */
+        foreach ($entries as $entry) {
+            $chart->addRow($entry[0], $entry[1]);
+        }
+        $chart->generate();
+
+        return $chart->getData();
+    }
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function year(Collection $categories, Collection $entries)
+    {
+        $chart = new GChart;
+
+        $chart->addColumn(trans('firefly.month'), 'date');
+        foreach ($categories as $category) {
+            $chart->addColumn($category->name, 'number');
+        }
+        /** @var array $entry */
+        foreach ($entries as $entry) {
+            $chart->addRowArray($entry);
+        }
+
+    }
+}
\ No newline at end of file
diff --git a/app/Generator/Chart/PiggyBank/GooglePiggyBankChartGenerator.php b/app/Generator/Chart/PiggyBank/GooglePiggyBankChartGenerator.php
new file mode 100644
index 0000000000..22f4639d18
--- /dev/null
+++ b/app/Generator/Chart/PiggyBank/GooglePiggyBankChartGenerator.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace FireflyIII\Generator\Chart\PiggyBank;
+
+use Carbon\Carbon;
+use Grumpydictator\Gchart\GChart;
+use Illuminate\Support\Collection;
+
+
+/**
+ * Class GooglePiggyBankChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\PiggyBank
+ */
+class GooglePiggyBankChartGenerator implements PiggyBankChartGenerator
+{
+
+    /**
+     * @param Collection $set
+     *
+     * @return array
+     */
+    public function history(Collection $set)
+    {
+        $chart = new GChart;
+        $chart->addColumn(trans('firefly.date'), 'date');
+        $chart->addColumn(trans('firefly.balance'), 'number');
+
+        $sum = '0';
+        bcscale(2);
+
+        foreach ($set as $entry) {
+            $sum = bcadd($sum, $entry->sum);
+            $chart->addRow(new Carbon($entry->date), $sum);
+        }
+
+        $chart->generate();
+
+        return $chart->getData();
+    }
+}
\ No newline at end of file
diff --git a/app/Generator/Chart/PiggyBank/PiggyBankChartGenerator.php b/app/Generator/Chart/PiggyBank/PiggyBankChartGenerator.php
new file mode 100644
index 0000000000..6f7b48a149
--- /dev/null
+++ b/app/Generator/Chart/PiggyBank/PiggyBankChartGenerator.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace FireflyIII\Generator\Chart\PiggyBank;
+
+use Illuminate\Support\Collection;
+
+/**
+ * Interface PiggyBankChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\PiggyBank
+ */
+interface PiggyBankChartGenerator
+{
+    /**
+     * @param Collection $set
+     *
+     * @return array
+     */
+    public function history(Collection $set);
+}
\ No newline at end of file
diff --git a/app/Generator/Chart/Report/GoogleReportChartGenerator.php b/app/Generator/Chart/Report/GoogleReportChartGenerator.php
new file mode 100644
index 0000000000..f5c519c97a
--- /dev/null
+++ b/app/Generator/Chart/Report/GoogleReportChartGenerator.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace FireflyIII\Generator\Chart\Report;
+
+use Grumpydictator\Gchart\GChart;
+use Illuminate\Support\Collection;
+
+/**
+ * Class GoogleReportChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\Report
+ */
+class GoogleReportChartGenerator implements ReportChartGenerator
+{
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function yearInOut(Collection $entries)
+    {
+        $chart = new GChart;
+        $chart->addColumn(trans('firefly.month'), 'date');
+        $chart->addColumn(trans('firefly.income'), 'number');
+        $chart->addColumn(trans('firefly.expenses'), 'number');
+
+        /** @var array $entry */
+        foreach ($entries as $entry) {
+            $chart->addRowArray($entry);
+        }
+        $chart->generate();
+
+        return $chart->getData();
+    }
+
+    /**
+     * @param string $income
+     * @param string $expense
+     * @param int    $count
+     *
+     * @return array
+     */
+    public function yearInOutSummarized($income, $expense, $count)
+    {
+        $chart = new GChart;
+
+        $chart->addColumn(trans('firefly.summary'), 'string');
+        $chart->addColumn(trans('firefly.income'), 'number');
+        $chart->addColumn(trans('firefly.expenses'), 'number');
+        $chart->addRow(trans('firefly.sum'), $income, $expense);
+        $chart->addRow(trans('firefly.average'), ($income / $count), ($expense / $count));
+
+        $chart->generate();
+
+        return $chart->getData();
+    }
+}
\ No newline at end of file
diff --git a/app/Generator/Chart/Report/ReportChartGenerator.php b/app/Generator/Chart/Report/ReportChartGenerator.php
new file mode 100644
index 0000000000..623fa7e93a
--- /dev/null
+++ b/app/Generator/Chart/Report/ReportChartGenerator.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace FireflyIII\Generator\Chart\Report;
+
+use Illuminate\Support\Collection;
+
+/**
+ * Interface ReportChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\Report
+ */
+interface ReportChartGenerator
+{
+
+    /**
+     * @param Collection $entries
+     *
+     * @return array
+     */
+    public function yearInOut(Collection $entries);
+
+    /**
+     * @param string $income
+     * @param string $expense
+     * @param int    $count
+     *
+     * @return array
+     */
+    public function yearInOutSummarized($income, $expense, $count);
+
+}
\ No newline at end of file
diff --git a/app/Http/Controllers/Chart/AccountController.php b/app/Http/Controllers/Chart/AccountController.php
index 1ade8c629b..3d92c8ef1d 100644
--- a/app/Http/Controllers/Chart/AccountController.php
+++ b/app/Http/Controllers/Chart/AccountController.php
@@ -8,12 +8,10 @@ use FireflyIII\Http\Controllers\Controller;
 use FireflyIII\Models\Account;
 use FireflyIII\Repositories\Account\AccountRepositoryInterface;
 use FireflyIII\Support\CacheProperties;
-use Grumpydictator\Gchart\GChart;
 use Illuminate\Support\Collection;
 use Preferences;
 use Response;
 use Session;
-use Steam;
 
 /**
  * Class AccountController
@@ -124,8 +122,8 @@ class AccountController extends Controller
     {
 
 
-        $start   = Session::get('start', Carbon::now()->startOfMonth());
-        $end     = Session::get('end', Carbon::now()->endOfMonth());
+        $start = Session::get('start', Carbon::now()->startOfMonth());
+        $end   = Session::get('end', Carbon::now()->endOfMonth());
 
         // chart properties for cache:
         $cache = new CacheProperties();
diff --git a/app/Http/Controllers/Chart/BillController.php b/app/Http/Controllers/Chart/BillController.php
index 7a4c2670bb..9d6934277a 100644
--- a/app/Http/Controllers/Chart/BillController.php
+++ b/app/Http/Controllers/Chart/BillController.php
@@ -2,14 +2,13 @@
 
 namespace FireflyIII\Http\Controllers\Chart;
 
+use App;
 use Carbon\Carbon;
 use FireflyIII\Http\Controllers\Controller;
 use FireflyIII\Models\Bill;
-use FireflyIII\Models\TransactionJournal;
 use FireflyIII\Repositories\Account\AccountRepositoryInterface;
 use FireflyIII\Repositories\Bill\BillRepositoryInterface;
 use FireflyIII\Support\CacheProperties;
-use Grumpydictator\Gchart\GChart;
 use Illuminate\Support\Collection;
 use Response;
 use Session;
@@ -22,60 +21,30 @@ use Steam;
  */
 class BillController extends Controller
 {
+
+    /** @var  \FireflyIII\Generator\Chart\Bill\BillChartGenerator */
+    protected $generator;
+
     /**
-     * Shows the overview for a bill. The min/max amount and matched journals.
      *
-     * @param GChart                  $chart
-     * @param BillRepositoryInterface $repository
-     * @param Bill                    $bill
-     *
-     * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function single(GChart $chart, BillRepositoryInterface $repository, Bill $bill)
+    public function __construct()
     {
-
-        $chart->addColumn(trans('firefly.date'), 'date');
-        $chart->addColumn(trans('firefly.maxAmount'), 'number');
-        $chart->addColumn(trans('firefly.minAmount'), 'number');
-        $chart->addColumn(trans('firefly.billEntry'), 'number');
-
-        $cache = new CacheProperties;
-        $cache->addProperty('single');
-        $cache->addProperty('bill');
-        $cache->addProperty($bill->id);
-        if ($cache->has()) {
-            return Response::json($cache->get()); // @codeCoverageIgnore
-        }
-
-        // get first transaction or today for start:
-        $results = $repository->getJournals($bill);
-        /** @var TransactionJournal $result */
-        foreach ($results as $result) {
-            $chart->addRow(clone $result->date, floatval($bill->amount_max), floatval($bill->amount_min), floatval($result->amount));
-        }
-
-        $chart->generate();
-
-        $data = $chart->getData();
-        $cache->store($data);
-
-        return Response::json($data);
+        parent::__construct();
+        // create chart generator:
+        $this->generator = App::make('FireflyIII\Generator\Chart\Bill\BillChartGenerator');
     }
 
     /**
      * Shows all bills and whether or not theyve been paid this month (pie chart).
      *
-     * @param GChart                     $chart
-     *
      * @param BillRepositoryInterface    $repository
      * @param AccountRepositoryInterface $accounts
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function frontpage(GChart $chart, BillRepositoryInterface $repository, AccountRepositoryInterface $accounts)
+    public function frontpage(BillRepositoryInterface $repository, AccountRepositoryInterface $accounts)
     {
-        $chart->addColumn(trans('firefly.name'), 'string');
-        $chart->addColumn(trans('firefly.amount'), 'number');
 
         $start = Session::get('start', Carbon::now()->startOfMonth());
         $end   = Session::get('end', Carbon::now()->endOfMonth());
@@ -94,11 +63,7 @@ class BillController extends Controller
         $bills  = $repository->getActiveBills();
         $paid   = new Collection; // journals.
         $unpaid = new Collection; // bills
-        // loop paid and create single entry:
-        $paidDescriptions   = [];
-        $paidAmount         = 0;
-        $unpaidDescriptions = [];
-        $unpaidAmount       = 0;
+
 
         /** @var Bill $bill */
         foreach ($bills as $bill) {
@@ -136,30 +101,35 @@ class BillController extends Controller
             }
         }
 
+        // build chart:
+        $data = $this->generator->frontpage($paid, $unpaid);
+        $cache->store($data);
 
-        /** @var TransactionJournal $entry */
-        foreach ($paid as $entry) {
+        return Response::json($data);
+    }
 
-            $paidDescriptions[] = $entry->description;
-            $paidAmount += floatval($entry->amount);
+    /**
+     * Shows the overview for a bill. The min/max amount and matched journals.
+     *
+     * @param BillRepositoryInterface $repository
+     * @param Bill                    $bill
+     *
+     * @return \Symfony\Component\HttpFoundation\Response
+     */
+    public function single(BillRepositoryInterface $repository, Bill $bill)
+    {
+        $cache = new CacheProperties;
+        $cache->addProperty('single');
+        $cache->addProperty('bill');
+        $cache->addProperty($bill->id);
+        if ($cache->has()) {
+            return Response::json($cache->get()); // @codeCoverageIgnore
         }
 
-        // loop unpaid:
-        /** @var Bill $entry */
-        foreach ($unpaid as $entry) {
-            $description          = $entry[0]->name . ' (' . $entry[1]->format('jS M Y') . ')';
-            $amount               = ($entry[0]->amount_max + $entry[0]->amount_min) / 2;
-            $unpaidDescriptions[] = $description;
-            $unpaidAmount += $amount;
-            unset($amount, $description);
-        }
+        // get first transaction or today for start:
+        $results = $repository->getJournals($bill);
 
-        $chart->addRow(trans('firefly.unpaid') . ': ' . join(', ', $unpaidDescriptions), $unpaidAmount);
-        $chart->addRow(trans('firefly.paid') . ': ' . join(', ', $paidDescriptions), $paidAmount);
-
-        $chart->generate();
-
-        $data = $chart->getData();
+        $data = $this->generator->single($bill, $results);
         $cache->store($data);
 
         return Response::json($data);
diff --git a/app/Http/Controllers/Chart/BudgetController.php b/app/Http/Controllers/Chart/BudgetController.php
index 517f9e56f9..4793ce3c92 100644
--- a/app/Http/Controllers/Chart/BudgetController.php
+++ b/app/Http/Controllers/Chart/BudgetController.php
@@ -2,6 +2,7 @@
 
 namespace FireflyIII\Http\Controllers\Chart;
 
+use App;
 use Carbon\Carbon;
 use FireflyIII\Http\Controllers\Controller;
 use FireflyIII\Models\Budget;
@@ -22,19 +23,30 @@ use Session;
  */
 class BudgetController extends Controller
 {
+
+    /** @var  \FireflyIII\Generator\Chart\Budget\BudgetChartGenerator */
+    protected $generator;
+
+    /**
+     *
+     */
+    public function __construct()
+    {
+        parent::__construct();
+        // create chart generator:
+        $this->generator = App::make('FireflyIII\Generator\Chart\Budget\BudgetChartGenerator');
+    }
+
     /**
-     * @param GChart                    $chart
      * @param BudgetRepositoryInterface $repository
      * @param Budget                    $budget
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function budget(GChart $chart, BudgetRepositoryInterface $repository, Budget $budget)
+    public function budget(BudgetRepositoryInterface $repository, Budget $budget)
     {
-        $chart->addColumn(trans('firefly.period'), 'date');
-        $chart->addColumn(trans('firefly.spent'), 'number');
-
 
+        // dates and times
         $first = $repository->getFirstBudgetLimitDate($budget);
         $range = Preferences::get('viewRange', '1M')->data;
         $last  = Session::get('end', new Carbon);
@@ -47,33 +59,23 @@ class BudgetController extends Controller
         $cache->addProperty($first);
         $cache->addProperty($last);
         $cache->addProperty('budget');
-        $cache->addProperty('budget');
         if ($cache->has()) {
             return Response::json($cache->get()); // @codeCoverageIgnore
         }
 
+        $entries = new Collection;
 
         while ($first < $last) {
             $end = Navigation::addPeriod($first, $range, 0);
             $end->subDay();
-
-            // start date for chart.
             $chartDate = clone $end;
             $chartDate->startOfMonth();
-
             $spent = $repository->spentInPeriodCorrected($budget, $first, $end);
-            $chart->addRow($chartDate, $spent);
-
+            $entries->push([$chartDate, $spent]);
             $first = Navigation::addPeriod($first, $range, 0);
-
-
         }
 
-        $chart->generate();
-
-        $data = $chart->getData();
-
-
+        $data = $this->generator->budget($entries);
         $cache->store($data);
 
         return Response::json($data);
@@ -89,7 +91,7 @@ class BudgetController extends Controller
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function budgetLimit(GChart $chart, BudgetRepositoryInterface $repository, Budget $budget, LimitRepetition $repetition)
+    public function budgetLimit(BudgetRepositoryInterface $repository, Budget $budget, LimitRepetition $repetition)
     {
         $start = clone $repetition->startdate;
         $end   = $repetition->enddate;
@@ -106,11 +108,8 @@ class BudgetController extends Controller
             return Response::json($cache->get()); // @codeCoverageIgnore
         }
 
-        $chart->addColumn(trans('firefly.day'), 'date');
-        $chart->addColumn(trans('firefly.left'), 'number');
-
-
-        $amount = $repetition->amount;
+        $entries = new Collection;
+        $amount  = $repetition->amount;
 
         while ($start <= $end) {
             /*
@@ -118,12 +117,11 @@ class BudgetController extends Controller
              */
             $sum = $repository->expensesOnDayCorrected($budget, $start);
             $amount += $sum;
-            $chart->addRow(clone $start, $amount);
+            $entries->push([clone $start, $amount]);
             $start->addDay();
         }
-        $chart->generate();
 
-        $data = $chart->getData();
+        $data = $this->generator->budgetLimit($entries);
         $cache->store($data);
 
         return Response::json($data);
@@ -133,18 +131,12 @@ class BudgetController extends Controller
     /**
      * Shows a budget list with spent/left/overspent.
      *
-     * @param GChart                    $chart
      * @param BudgetRepositoryInterface $repository
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function frontpage(GChart $chart, BudgetRepositoryInterface $repository)
+    public function frontpage(BudgetRepositoryInterface $repository)
     {
-        $chart->addColumn(trans('firefly.budget'), 'string');
-        $chart->addColumn(trans('firefly.left'), 'number');
-        $chart->addColumn(trans('firefly.spent'), 'number');
-        $chart->addColumn(trans('firefly.overspent'), 'number');
-
         $budgets    = $repository->getBudgets();
         $start      = Session::get('start', Carbon::now()->startOfMonth());
         $end        = Session::get('end', Carbon::now()->endOfMonth());
@@ -160,6 +152,7 @@ class BudgetController extends Controller
             return Response::json($cache->get()); // @codeCoverageIgnore
         }
 
+        bcscale(2);
 
         /** @var Budget $budget */
         foreach ($budgets as $budget) {
@@ -171,32 +164,27 @@ class BudgetController extends Controller
             }
             /** @var LimitRepetition $repetition */
             foreach ($repetitions as $repetition) {
-                $expenses  = $repository->spentInPeriodCorrected($budget, $repetition->startdate, $repetition->enddate, true);
-                $left      = $expenses < floatval($repetition->amount) ? floatval($repetition->amount) - $expenses : 0;
-                $spent     = $expenses > floatval($repetition->amount) ? floatval($repetition->amount) : $expenses;
-                $overspent = $expenses > floatval($repetition->amount) ? $expenses - floatval($repetition->amount) : 0;
-                $allEntries->push(
-                    [$budget->name . ' (' . $repetition->startdate->formatLocalized($this->monthAndDayFormat) . ')',
-                     $left,
-                     $spent,
-                     $overspent
-                    ]
-                );
+                $expenses = $repository->spentInPeriodCorrected($budget, $repetition->startdate, $repetition->enddate, true);
+                // $left can be less than zero.
+                // $overspent can be more than zero ( = overspending)
+
+                $left      = max(bcsub($repetition->amount, $expenses), 0); // limited at zero.
+                $overspent = max(bcsub($expenses, $repetition->amount), 0); // limited at zero.
+                $date      = $repetition->startdate->formatLocalized($this->monthAndDayFormat);
+                $name      = $budget->name . ' (' . $date . ')';
+
+                // $spent is maxed to the repetition amount:
+                $spent = $expenses > $repetition->amount ? $repetition->amount : $expenses;
+
+
+                $allEntries->push([$name, $left, $spent, $overspent]);
             }
         }
 
         $noBudgetExpenses = $repository->getWithoutBudgetSum($start, $end) * -1;
         $allEntries->push([trans('firefly.noBudget'), 0, 0, $noBudgetExpenses]);
 
-        foreach ($allEntries as $entry) {
-            if ($entry[1] != 0 || $entry[2] != 0 || $entry[3] != 0) {
-                $chart->addRow($entry[0], $entry[1], $entry[2], $entry[3]);
-            }
-        }
-
-        $chart->generate();
-
-        $data = $chart->getData();
+        $data = $this->generator->frontpage($allEntries);
         $cache->store($data);
 
         return Response::json($data);
@@ -206,14 +194,13 @@ class BudgetController extends Controller
     /**
      * Show a yearly overview for a budget.
      *
-     * @param GChart                    $chart
      * @param BudgetRepositoryInterface $repository
      * @param                           $year
      * @param bool                      $shared
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function year(GChart $chart, BudgetRepositoryInterface $repository, $year, $shared = false)
+    public function year(BudgetRepositoryInterface $repository, $year, $shared = false)
     {
         $start   = new Carbon($year . '-01-01');
         $end     = new Carbon($year . '-12-31');
@@ -230,17 +217,12 @@ class BudgetController extends Controller
             return Response::json($cache->get()); // @codeCoverageIgnore
         }
 
-        // add columns:
-        $chart->addColumn(trans('firefly.month'), 'date');
-        foreach ($budgets as $budget) {
-            $chart->addColumn($budget->name, 'number');
-        }
+        $entries = new Collection;
 
         while ($start < $end) {
             // month is the current end of the period:
             $month = clone $start;
             $month->endOfMonth();
-            // make a row:
             $row = [clone $start];
 
             // each budget, fill the row:
@@ -248,14 +230,11 @@ class BudgetController extends Controller
                 $spent = $repository->spentInPeriodCorrected($budget, $start, $month, $shared);
                 $row[] = $spent;
             }
-            $chart->addRowArray($row);
-
+            $entries->push($row);
             $start->endOfMonth()->addDay();
         }
 
-        $chart->generate();
-
-        $data = $chart->getData();
+        $data = $this->generator->year($budgets, $entries);
         $cache->store($data);
 
         return Response::json($data);
diff --git a/app/Http/Controllers/Chart/CategoryController.php b/app/Http/Controllers/Chart/CategoryController.php
index b7c4bdb800..866ff6a4d0 100644
--- a/app/Http/Controllers/Chart/CategoryController.php
+++ b/app/Http/Controllers/Chart/CategoryController.php
@@ -3,12 +3,13 @@
 namespace FireflyIII\Http\Controllers\Chart;
 
 
+use App;
 use Carbon\Carbon;
 use FireflyIII\Http\Controllers\Controller;
 use FireflyIII\Models\Category;
 use FireflyIII\Repositories\Category\CategoryRepositoryInterface;
 use FireflyIII\Support\CacheProperties;
-use Grumpydictator\Gchart\GChart;
+use Illuminate\Support\Collection;
 use Navigation;
 use Preferences;
 use Response;
@@ -21,42 +22,61 @@ use Session;
  */
 class CategoryController extends Controller
 {
+    /** @var  \FireflyIII\Generator\Chart\Category\CategoryChartGenerator */
+    protected $generator;
+
+    /**
+     *
+     */
+    public function __construct()
+    {
+        parent::__construct();
+        // create chart generator:
+        $this->generator = App::make('FireflyIII\Generator\Chart\Category\CategoryChartGenerator');
+    }
 
 
     /**
      * Show an overview for a category for all time, per month/week/year.
      *
-     * @param GChart                      $chart
      * @param CategoryRepositoryInterface $repository
      * @param Category                    $category
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function all(GChart $chart, CategoryRepositoryInterface $repository, Category $category)
+    public function all(CategoryRepositoryInterface $repository, Category $category)
     {
         // oldest transaction in category:
         $start = $repository->getFirstActivityDate($category);
         $range = Preferences::get('viewRange', '1M')->data;
-        // jump to start of week / month / year / etc
         $start = Navigation::startOfPeriod($start, $range);
+        $end   = new Carbon;
 
-        $chart->addColumn(trans('firefly.period'), 'date');
-        $chart->addColumn(trans('firefly.spent'), 'number');
+        $entries = new Collection;
 
 
-        $end = new Carbon;
-        while ($start <= $end) {
-
-            $currentEnd = Navigation::endOfPeriod($start, $range);
-            $spent      = $repository->spentInPeriodCorrected($category, $start, $currentEnd);
-            $chart->addRow(clone $start, $spent);
-
-            $start = Navigation::addPeriod($start, $range, 0);
+        // chart properties for cache:
+        $cache = new CacheProperties();
+        $cache->addProperty($start);
+        $cache->addProperty($end);
+        $cache->addProperty('all');
+        $cache->addProperty('categories');
+        if ($cache->has()) {
+            return Response::json($cache->get()); // @codeCoverageIgnore
         }
 
-        $chart->generate();
+        while ($start <= $end) {
+            $currentEnd = Navigation::endOfPeriod($start, $range);
+            $spent      = $repository->spentInPeriodCorrected($category, $start, $currentEnd);
+            $entries->push([clone $start, $spent]);
+            $start = Navigation::addPeriod($start, $range, 0);
 
-        return Response::json($chart->getData());
+        }
+
+        $data = $this->generator->all($entries);
+        $cache->store($data);
+
+        return Response::json($data);
 
 
     }
@@ -64,15 +84,12 @@ class CategoryController extends Controller
     /**
      * Show this month's category overview.
      *
-     * @param GChart                      $chart
      * @param CategoryRepositoryInterface $repository
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function frontpage(GChart $chart, CategoryRepositoryInterface $repository)
+    public function frontpage(CategoryRepositoryInterface $repository)
     {
-        $chart->addColumn(trans('firefly.category'), 'string');
-        $chart->addColumn(trans('firefly.spent'), 'number');
 
         $start = Session::get('start', Carbon::now()->startOfMonth());
         $end   = Session::get('end', Carbon::now()->endOfMonth());
@@ -87,11 +104,10 @@ class CategoryController extends Controller
             return Response::json($cache->get()); // @codeCoverageIgnore
         }
 
-        $set = $repository->getCategoriesAndExpensesCorrected($start, $end);
-
+        $array = $repository->getCategoriesAndExpensesCorrected($start, $end);
         // sort by callback:
         uasort(
-            $set,
+            $array,
             function ($left, $right) {
                 if ($left['sum'] == $right['sum']) {
                     return 0;
@@ -100,48 +116,48 @@ class CategoryController extends Controller
                 return ($left['sum'] < $right['sum']) ? 1 : -1;
             }
         );
-
-
-        foreach ($set as $entry) {
-            $sum = floatval($entry['sum']);
-            if ($sum != 0) {
-                $chart->addRow($entry['name'], $sum);
-            }
-        }
-
-        $chart->generate();
-
-        $data = $chart->getData();
-        $cache->store($data);
+        $set  = new Collection($array);
+        $data = $this->generator->frontpage($set);
 
         return Response::json($data);
 
     }
 
     /**
-     * @param GChart                      $chart
      * @param CategoryRepositoryInterface $repository
      * @param Category                    $category
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function month(GChart $chart, CategoryRepositoryInterface $repository, Category $category)
+    public function month(CategoryRepositoryInterface $repository, Category $category)
     {
         $start = clone Session::get('start', Carbon::now()->startOfMonth());
         $end   = Session::get('end', Carbon::now()->endOfMonth());
 
-        $chart->addColumn(trans('firefly.period'), 'date');
-        $chart->addColumn(trans('firefly.spent'), 'number');
+        // chart properties for cache:
+        $cache = new CacheProperties;
+        $cache->addProperty($start);
+        $cache->addProperty($end);
+        $cache->addProperty($category->id);
+        $cache->addProperty('category');
+        $cache->addProperty('month');
+        if ($cache->has()) {
+            return Response::json($cache->get()); // @codeCoverageIgnore
+        }
+        $entries = new Collection;
+
 
         while ($start <= $end) {
             $spent = $repository->spentOnDaySumCorrected($category, $start);
-            $chart->addRow(clone $start, $spent);
+
+            $entries->push([clone $start, $spent]);
             $start->addDay();
         }
 
-        $chart->generate();
+        $data = $this->generator->month($entries);
+        $cache->store($data);
 
-        return Response::json($chart->getData());
+        return Response::json($data);
 
 
     }
@@ -149,25 +165,31 @@ class CategoryController extends Controller
     /**
      * This chart will only show expenses.
      *
-     * @param GChart                      $chart
      * @param CategoryRepositoryInterface $repository
      * @param                             $year
      * @param bool                        $shared
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function year(GChart $chart, CategoryRepositoryInterface $repository, $year, $shared = false)
+    public function year(CategoryRepositoryInterface $repository, $year, $shared = false)
     {
-        $start      = new Carbon($year . '-01-01');
-        $end        = new Carbon($year . '-12-31');
+        $start = new Carbon($year . '-01-01');
+        $end   = new Carbon($year . '-12-31');
+
+
+        // chart properties for cache:
+        $cache = new CacheProperties;
+        $cache->addProperty($start);
+        $cache->addProperty($end);
+        $cache->addProperty('category');
+        $cache->addProperty('year');
+        if ($cache->has()) {
+            return Response::json($cache->get()); // @codeCoverageIgnore
+        }
+
         $shared     = $shared == 'shared' ? true : false;
         $categories = $repository->getCategories();
-
-        // add columns:
-        $chart->addColumn(trans('firefly.month'), 'date');
-        foreach ($categories as $category) {
-            $chart->addColumn($category->name, 'number');
-        }
+        $entries    = new Collection;
 
         while ($start < $end) {
             // month is the current end of the period:
@@ -181,13 +203,14 @@ class CategoryController extends Controller
                 $spent = $repository->spentInPeriodCorrected($category, $start, $month, $shared);
                 $row[] = $spent;
             }
-            $chart->addRowArray($row);
+            $entries->push($row);
 
             $start->addMonth();
         }
 
-        $chart->generate();
+        $data = $this->generator->year($categories, $entries);
+        $cache->store($data);
 
-        return Response::json($chart->getData());
+        return Response::json($data);
     }
 }
diff --git a/app/Http/Controllers/Chart/PiggyBankController.php b/app/Http/Controllers/Chart/PiggyBankController.php
index 7428757c79..22e2a0790e 100644
--- a/app/Http/Controllers/Chart/PiggyBankController.php
+++ b/app/Http/Controllers/Chart/PiggyBankController.php
@@ -2,11 +2,11 @@
 
 namespace FireflyIII\Http\Controllers\Chart;
 
-use Carbon\Carbon;
+use App;
 use FireflyIII\Http\Controllers\Controller;
 use FireflyIII\Models\PiggyBank;
 use FireflyIII\Repositories\PiggyBank\PiggyBankRepositoryInterface;
-use Grumpydictator\Gchart\GChart;
+use FireflyIII\Support\CacheProperties;
 use Illuminate\Support\Collection;
 use Response;
 
@@ -18,32 +18,44 @@ use Response;
  */
 class PiggyBankController extends Controller
 {
+
+    /** @var  \FireflyIII\Generator\Chart\PiggyBank\PiggyBankChartGenerator */
+    protected $generator;
+
+    /**
+     *
+     */
+    public function __construct()
+    {
+        parent::__construct();
+        // create chart generator:
+        $this->generator = App::make('FireflyIII\Generator\Chart\PiggyBank\PiggyBankChartGenerator');
+    }
+
     /**
      * Shows the piggy bank history.
      *
-     * @param GChart                       $chart
      * @param PiggyBankRepositoryInterface $repository
      * @param PiggyBank                    $piggyBank
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function history(GChart $chart, PiggyBankRepositoryInterface $repository, PiggyBank $piggyBank)
+    public function history(PiggyBankRepositoryInterface $repository, PiggyBank $piggyBank)
     {
-        $chart->addColumn(trans('firefly.date'), 'date');
-        $chart->addColumn(trans('firefly.balance'), 'number');
-
-        /** @var Collection $set */
-        $set = $repository->getEventSummarySet($piggyBank);
-        $sum = 0;
-
-        foreach ($set as $entry) {
-            $sum += floatval($entry->sum);
-            $chart->addRow(new Carbon($entry->date), $sum);
+        // chart properties for cache:
+        $cache = new CacheProperties;
+        $cache->addProperty('piggy-history');
+        $cache->addProperty($piggyBank->id);
+        if ($cache->has()) {
+            return Response::json($cache->get()); // @codeCoverageIgnore
         }
 
-        $chart->generate();
+        /** @var Collection $set */
+        $set  = new Collection($repository->getEventSummarySet($piggyBank));
+        $data = $this->generator->history($set);
+        $cache->store($data);
 
-        return Response::json($chart->getData());
+        return Response::json($data);
 
     }
 }
diff --git a/app/Http/Controllers/Chart/ReportController.php b/app/Http/Controllers/Chart/ReportController.php
index a474f1ac51..7e1b435e8d 100644
--- a/app/Http/Controllers/Chart/ReportController.php
+++ b/app/Http/Controllers/Chart/ReportController.php
@@ -3,10 +3,12 @@
 namespace FireflyIII\Http\Controllers\Chart;
 
 
+use App;
 use Carbon\Carbon;
 use FireflyIII\Helpers\Report\ReportQueryInterface;
 use FireflyIII\Http\Controllers\Controller;
-use Grumpydictator\Gchart\GChart;
+use FireflyIII\Support\CacheProperties;
+use Illuminate\Support\Collection;
 use Response;
 
 /**
@@ -17,85 +19,108 @@ use Response;
 class ReportController extends Controller
 {
 
+    /** @var  \FireflyIII\Generator\Chart\Report\ReportChartGenerator */
+    protected $generator;
+
+    /**
+     *
+     */
+    public function __construct()
+    {
+        parent::__construct();
+        // create chart generator:
+        $this->generator = App::make('FireflyIII\Generator\Chart\Report\ReportChartGenerator');
+    }
+
 
     /**
      * Summarizes all income and expenses, per month, for a given year.
      *
-     * @param GChart               $chart
      * @param ReportQueryInterface $query
      * @param                      $year
      * @param bool                 $shared
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function yearInOut(GChart $chart, ReportQueryInterface $query, $year, $shared = false)
+    public function yearInOut(ReportQueryInterface $query, $year, $shared = false)
     {
         // get start and end of year
         $start  = new Carbon($year . '-01-01');
         $end    = new Carbon($year . '-12-31');
         $shared = $shared == 'shared' ? true : false;
 
-        $chart->addColumn(trans('firefly.month'), 'date');
-        $chart->addColumn(trans('firefly.income'), 'number');
-        $chart->addColumn(trans('firefly.expenses'), 'number');
+        // chart properties for cache:
+        $cache = new CacheProperties;
+        $cache->addProperty('yearInOut');
+        $cache->addProperty($year);
+        $cache->addProperty($shared);
+        if ($cache->has()) {
+            return Response::json($cache->get()); // @codeCoverageIgnore
+        }
 
+        $entries = new Collection;
         while ($start < $end) {
             $month = clone $start;
             $month->endOfMonth();
             // total income and total expenses:
-            $incomeSum  = floatval($query->incomeInPeriodCorrected($start, $month, $shared)->sum('amount'));
-            $expenseSum = floatval($query->expenseInPeriodCorrected($start, $month, $shared)->sum('amount'));
+            $incomeSum  = $query->incomeInPeriodCorrected($start, $month, $shared)->sum('amount');
+            $expenseSum = $query->expenseInPeriodCorrected($start, $month, $shared)->sum('amount');
 
-            $chart->addRow(clone $start, $incomeSum, $expenseSum);
+            $entries->push([clone $start, $incomeSum, $expenseSum]);
             $start->addMonth();
         }
-        $chart->generate();
 
-        return Response::json($chart->getData());
+        $data = $this->generator->yearInOut($entries);
+        $cache->store($data);
+
+        return Response::json($data);
 
     }
 
     /**
      * Summarizes all income and expenses for a given year. Gives a total and an average.
      *
-     * @param GChart               $chart
      * @param ReportQueryInterface $query
      * @param                      $year
      * @param bool                 $shared
      *
      * @return \Symfony\Component\HttpFoundation\Response
      */
-    public function yearInOutSummarized(GChart $chart, ReportQueryInterface $query, $year, $shared = false)
+    public function yearInOutSummarized(ReportQueryInterface $query, $year, $shared = false)
     {
+
+        // chart properties for cache:
+        $cache = new CacheProperties;
+        $cache->addProperty('yearInOutSummarized');
+        $cache->addProperty($year);
+        $cache->addProperty($shared);
+        if ($cache->has()) {
+            return Response::json($cache->get()); // @codeCoverageIgnore
+        }
+
         $start   = new Carbon($year . '-01-01');
         $end     = new Carbon($year . '-12-31');
         $shared  = $shared == 'shared' ? true : false;
-        $income  = 0;
-        $expense = 0;
+        $income  = '0';
+        $expense = '0';
         $count   = 0;
 
-        $chart->addColumn(trans('firefly.summary'), 'string');
-        $chart->addColumn(trans('firefly.income'), 'number');
-        $chart->addColumn(trans('firefly.expenses'), 'number');
+        bcscale(2);
 
         while ($start < $end) {
             $month = clone $start;
             $month->endOfMonth();
             // total income and total expenses:
-            $income += floatval($query->incomeInPeriodCorrected($start, $month, $shared)->sum('amount'));
-            $expense += floatval($query->expenseInPeriodCorrected($start, $month, $shared)->sum('amount'));
+            $income  = bcadd($income, $query->incomeInPeriodCorrected($start, $month, $shared)->sum('amount'));
+            $expense = bcadd($expense, $query->expenseInPeriodCorrected($start, $month, $shared)->sum('amount'));
             $count++;
             $start->addMonth();
         }
 
-        // add total + average:
-        $chart->addRow(trans('firefly.sum'), $income, $expense);
-        $count = $count > 0 ? $count : 1;
-        $chart->addRow(trans('firefly.average'), ($income / $count), ($expense / $count));
+        $data = $this->generator->yearInOutSummarized($income, $expense, $count);
+        $cache->store($data);
 
-        $chart->generate();
-
-        return Response::json($chart->getData());
+        return Response::json($data);
 
     }
 }
diff --git a/app/Providers/FireflyServiceProvider.php b/app/Providers/FireflyServiceProvider.php
index 1f8c4d0a3a..b05e112dec 100644
--- a/app/Providers/FireflyServiceProvider.php
+++ b/app/Providers/FireflyServiceProvider.php
@@ -93,6 +93,11 @@ class FireflyServiceProvider extends ServiceProvider
 
         // make Google charts:
         $this->app->bind('FireflyIII\Generator\Chart\Account\AccountChartGenerator', 'FireflyIII\Generator\Chart\Account\GoogleAccountChartGenerator');
+        $this->app->bind('FireflyIII\Generator\Chart\Bill\BillChartGenerator', 'FireflyIII\Generator\Chart\Bill\GoogleBillChartGenerator');
+        $this->app->bind('FireflyIII\Generator\Chart\Budget\BudgetChartGenerator', 'FireflyIII\Generator\Chart\Budget\GoogleBudgetChartGenerator');
+        $this->app->bind('FireflyIII\Generator\Chart\Category\CategoryChartGenerator', 'FireflyIII\Generator\Chart\Category\GoogleCategoryChartGenerator');
+        $this->app->bind('FireflyIII\Generator\Chart\PiggyBank\PiggyBankChartGenerator', 'FireflyIII\Generator\Chart\PiggyBank\GooglePiggyBankChartGenerator');
+        $this->app->bind('FireflyIII\Generator\Chart\Report\ReportChartGenerator', 'FireflyIII\Generator\Chart\Report\GoogleReportChartGenerator');
 
 
         $this->app->bind('FireflyIII\Helpers\Help\HelpInterface', 'FireflyIII\Helpers\Help\Help');