New feature: option to delete all meta data from your account.

app/Repositories/Budget/AvailableBudgetRepository.php

@@ -282,4 +282,12 @@ class AvailableBudgetRepository implements AvailableBudgetRepositoryInterface
         return $availableBudget;
 
     }
+
+    /**
+     * Delete all available budgets.
+     */
+    public function destroyAll(): void
+    {
+        $this->user->availableBudgets()->delete();
+    }
 }

app/Repositories/Budget/AvailableBudgetRepositoryInterface.php

@@ -34,6 +34,12 @@ use Illuminate\Support\Collection;
  */
 interface AvailableBudgetRepositoryInterface
 {
+
+    /**
+     * Delete all available budgets.
+     */
+    public function destroyAll(): void;
+
     /**
      * @param AvailableBudget $availableBudget
      */

app/Repositories/Budget/BudgetLimitRepository.php

@@ -447,4 +447,16 @@ class BudgetLimitRepository implements BudgetLimitRepositoryInterface
 
         return $limit;
     }
+
+    /**
+     * Destroy all budget limits.
+     */
+    public function destroyAll(): void
+    {
+        $budgets = $this->user->budgets()->get();
+        /** @var Budget $budget */
+        foreach ($budgets as $budget) {
+            $budget->budgetlimits()->delete();
+        }
+    }
 }

app/Repositories/Budget/BudgetLimitRepositoryInterface.php

@@ -35,6 +35,12 @@ use Illuminate\Support\Collection;
  */
 interface BudgetLimitRepositoryInterface
 {
+
+    /**
+     * Destroy all budget limits.
+     */
+    public function destroyAll(): void;
+
     /**
      * Tells you which amount has been budgeted (for the given budgets)
      * in the selected query. Returns a positive amount as a string.

app/Repositories/Budget/BudgetRepository.php

@@ -23,9 +23,11 @@ declare(strict_types=1);
 namespace FireflyIII\Repositories\Budget;
 
 use Carbon\Carbon;
+use DB;
 use Exception;
 use FireflyIII\Models\Budget;
 use FireflyIII\Models\BudgetLimit;
+use FireflyIII\Models\RecurrenceTransactionMeta;
 use FireflyIII\Models\RuleAction;
 use FireflyIII\Models\RuleTrigger;
 use FireflyIII\Services\Internal\Destroy\BudgetDestroyService;
@@ -341,4 +343,20 @@ class BudgetRepository implements BudgetRepositoryInterface
             Log::debug(sprintf('Updated trigger %d: %s', $trigger->id, $trigger->trigger_value));
         }
     }
+
+    /**
+     * Destroy all budgets.
+     */
+    public function destroyAll(): void
+    {
+        $budgets = $this->getBudgets();
+        /** @var Budget $budget */
+        foreach ($budgets as $budget) {
+            DB::table('budget_transaction')->where('budget_id', $budget->id)->delete();
+            DB::table('budget_transaction_journal')->where('budget_id', $budget->id)->delete();
+            RecurrenceTransactionMeta::where('name', 'budget_id')->where('value', $budget->id)->delete();
+            RuleAction::where('action_type', 'set_budget')->where('action_value', $budget->id)->delete();
+            $budget->delete();
+        }
+    }
 }

app/Repositories/Budget/BudgetRepositoryInterface.php

@@ -32,6 +32,12 @@ use Illuminate\Support\Collection;
  */
 interface BudgetRepositoryInterface
 {
+    /**
+     * Destroy all budgets.
+     */
+    public function destroyAll(): void;
+
+
     /**
      * @return bool
      */