diff --git a/app/Http/Controllers/JavascriptController.php b/app/Http/Controllers/JavascriptController.php
index ba293e76c7..2e9f9f8076 100644
--- a/app/Http/Controllers/JavascriptController.php
+++ b/app/Http/Controllers/JavascriptController.php
@@ -144,9 +144,8 @@ class JavascriptController extends Controller
             $currency = app('amount')->getDefaultCurrency();
         }
 
-        $localeconv                = app('amount')->getLocaleInfo();
-        $accounting                = app('amount')->getJsConfig($localeconv);
-        $localeconv['frac_digits'] = $currency->decimal_places;
+        $accountingLocaleInfo                = app('amount')->getAccountingLocaleInfo();
+        $accountingLocaleInfo['frac_digits'] = $currency->decimal_places;
         $pref                      = app('preferences')->get('language', config('firefly.default_language', 'en_US'));
         /** @noinspection NullPointerExceptionInspection */
         $lang      = $pref->data;
@@ -154,14 +153,13 @@ class JavascriptController extends Controller
         $uid       = substr(hash('sha256', sprintf('%s-%s-%s', (string) config('app.key'), auth()->user()->id, auth()->user()->email)), 0, 12);
 
         $data = [
-            'currencyCode'    => $currency->code,
-            'currencySymbol'  => $currency->symbol,
-            'accounting'      => $accounting,
-            'localeconv'      => $localeconv,
-            'language'        => $lang,
-            'dateRangeTitle'  => $dateRange['title'],
-            'dateRangeConfig' => $dateRange['configuration'],
-            'uid'             => $uid,
+            'currencyCode'          => $currency->code,
+            'currencySymbol'        => $currency->symbol,
+            'accountingLocaleInfo'  => $accountingLocaleInfo,
+            'language'              => $lang,
+            'dateRangeTitle'        => $dateRange['title'],
+            'dateRangeConfig'       => $dateRange['configuration'],
+            'uid'                   => $uid,
         ];
         $request->session()->keep(['two-factor-secret']);
 
diff --git a/app/Support/Amount.php b/app/Support/Amount.php
index 27b3856312..eb0f25e863 100644
--- a/app/Support/Amount.php
+++ b/app/Support/Amount.php
@@ -28,6 +28,7 @@ use FireflyIII\User;
 use Illuminate\Contracts\Encryption\DecryptException;
 use Illuminate\Support\Collection;
 use Log;
+use NumberFormatter;
 
 /**
  * Class Amount.
@@ -37,80 +38,6 @@ use Log;
 class Amount
 {
 
-    /**
-     * bool $sepBySpace is $localeconv['n_sep_by_space']
-     * int $signPosn = $localeconv['n_sign_posn']
-     * string $sign = $localeconv['negative_sign']
-     * bool $csPrecedes = $localeconv['n_cs_precedes'].
-     *
-     * @param bool   $sepBySpace
-     * @param int    $signPosn
-     * @param string $sign
-     * @param bool   $csPrecedes
-     *
-     * @return string
-     *
-     */
-    public static function getAmountJsConfig(bool $sepBySpace, int $signPosn, string $sign, bool $csPrecedes): string
-    {
-        // negative first:
-        $space = ' ';
-
-        // require space between symbol and amount?
-        if (false === $sepBySpace) {
-            $space = ''; // no
-        }
-
-        // there are five possible positions for the "+" or "-" sign (if it is even used)
-        // pos_a and pos_e could be the ( and ) symbol.
-        $posA = ''; // before everything
-        $posB = ''; // before currency symbol
-        $posC = ''; // after currency symbol
-        $posD = ''; // before amount
-        $posE = ''; // after everything
-
-        // format would be (currency before amount)
-        // AB%sC_D%vE
-        // or:
-        // AD%v_B%sCE (amount before currency)
-        // the _ is the optional space
-
-        // switch on how to display amount:
-        switch ($signPosn) {
-            default:
-            case 0:
-                // ( and ) around the whole thing
-                $posA = '(';
-                $posE = ')';
-                break;
-            case 1:
-                // The sign string precedes the quantity and currency_symbol
-                $posA = $sign;
-                break;
-            case 2:
-                // The sign string succeeds the quantity and currency_symbol
-                $posE = $sign;
-                break;
-            case 3:
-                // The sign string immediately precedes the currency_symbol
-                $posB = $sign;
-                break;
-            case 4:
-                // The sign string immediately succeeds the currency_symbol
-                $posC = $sign;
-        }
-
-        // default is amount before currency
-        $format = $posA . $posD . '%v' . $space . $posB . '%s' . $posC . $posE;
-
-        if ($csPrecedes) {
-            // alternative is currency before amount
-            $format = $posA . $posB . '%s' . $posC . $space . $posD . '%v' . $posE;
-        }
-
-        return $format;
-    }
-
     /**
      * This method will properly format the given number, in color or "black and white",
      * as a currency, given two things: the currency required and the current locale.
@@ -142,13 +69,16 @@ class Amount
      */
     public function formatFlat(string $symbol, int $decimalPlaces, string $amount, bool $coloured = null): string
     {
+        $locale = app('steam')->getLocale();
+
         $coloured  = $coloured ?? true;
-        $info      = $this->getLocaleInfo();
-        $formatted = number_format((float) $amount, $decimalPlaces, $info['mon_decimal_point'], $info['mon_thousands_sep']);
-        $precedes  = $amount < 0 ? $info['n_cs_precedes'] : $info['p_cs_precedes'];
-        $separated = $amount < 0 ? $info['n_sep_by_space'] : $info['p_sep_by_space'];
-        $space     = true === $separated ? ' ' : '';
-        $result    = false === $precedes ? $formatted . $space . $symbol : $symbol . $space . $formatted;
+        $float     = round($amount, 12);
+
+        $fmt = new NumberFormatter( $locale, NumberFormatter::CURRENCY );
+        $fmt->setSymbol(NumberFormatter::CURRENCY_SYMBOL, $symbol);
+        $fmt->setAttribute(NumberFormatter::MIN_FRACTION_DIGITS, $decimalPlaces);
+        $fmt->setAttribute(NumberFormatter::MAX_FRACTION_DIGITS, $decimalPlaces);
+        $result = $fmt->format($float);
 
         if (true === $coloured) {
             if ($amount > 0) {
@@ -300,58 +230,31 @@ class Amount
     }
 
     /**
-     * This method returns the correct format rules required by accounting.js,
-     * the library used to format amounts in charts.
-     *
-     * @param array $config
-     *
      * @return array
      */
-    public function getJsConfig(array $config): array
+    public function getAccountingLocaleInfo(): array
     {
-        $negative = self::getAmountJsConfig($config['n_sep_by_space'], $config['n_sign_posn'], $config['negative_sign'], $config['n_cs_precedes']);
-        $positive = self::getAmountJsConfig($config['p_sep_by_space'], $config['p_sign_posn'], $config['positive_sign'], $config['p_cs_precedes']);
+        $locale = app('steam')->getLocale();
+
+        $fmt = new NumberFormatter( $locale, NumberFormatter::CURRENCY );
+
+        $positivePrefixed = $fmt->getAttribute(NumberFormatter::POSITIVE_PREFIX) !== '';
+        $negativePrefixed = $fmt->getAttribute(NumberFormatter::NEGATIVE_PREFIX) !== '';
+
+        $positive = ($positivePrefixed) ? '%s %v' : '%v %s';
+        $negative = ($negativePrefixed) ? '%s %v' : '%v %s';
 
         return [
-            'pos'  => $positive,
-            'neg'  => $negative,
-            'zero' => $positive,
+            'mon_decimal_point' => $fmt->getSymbol(NumberFormatter::MONETARY_SEPARATOR_SYMBOL),
+            'mon_thousands_sep' => $fmt->getSymbol(NumberFormatter::MONETARY_GROUPING_SEPARATOR_SYMBOL),
+            'format' => [
+                'pos'  => $positive,
+                'neg'  => $negative,
+                'zero' => $positive,
+            ]
         ];
     }
 
-    /**
-     * @return array
-     */
-    public function getLocaleInfo(): array
-    {
-        // get config from preference, not from translation:
-        $locale = app('steam')->getLocale();
-        $array  = app('steam')->getLocaleArray($locale);
-
-        setlocale(LC_MONETARY, $array);
-        $info = localeconv();
-        // correct variables
-        $info['n_cs_precedes'] = $this->getLocaleField($info, 'n_cs_precedes');
-        $info['p_cs_precedes'] = $this->getLocaleField($info, 'p_cs_precedes');
-
-        $info['n_sep_by_space'] = $this->getLocaleField($info, 'n_sep_by_space');
-        $info['p_sep_by_space'] = $this->getLocaleField($info, 'p_sep_by_space');
-
-        return $info;
-    }
-
-    /**
-     * @param array  $info
-     * @param string $field
-     *
-     * @return bool
-     */
-    private function getLocaleField(array $info, string $field): bool
-    {
-        return (is_bool($info[$field]) && true === $info[$field])
-               || (is_int($info[$field]) && 1 === $info[$field]);
-    }
-
     /**
      * @param string $value
      *
diff --git a/app/Support/Facades/Amount.php b/app/Support/Facades/Amount.php
index 992f6fbfbc..a72db8bb45 100644
--- a/app/Support/Facades/Amount.php
+++ b/app/Support/Facades/Amount.php
@@ -38,7 +38,6 @@ use Illuminate\Support\Facades\Facade;
  * @method string getCurrencySymbol()
  * @method TransactionCurrency getDefaultCurrency()
  * @method TransactionCurrency getDefaultCurrencyByUser(User $user)
- * @method array getJsConfig(array $config)
  */
 class Amount extends Facade
 {
diff --git a/resources/views/v1/javascript/variables.twig b/resources/views/v1/javascript/variables.twig
index 5af0c92803..d16978f4d2 100644
--- a/resources/views/v1/javascript/variables.twig
+++ b/resources/views/v1/javascript/variables.twig
@@ -29,13 +29,13 @@ var uid = "{{ uid }}";
 var language = "{{ language|escape }}";
 var currencyCode = '{{ currencyCode|escape('js') }}';
 var currencySymbol = '{{ currencySymbol|escape('js') }}';
-var mon_decimal_point = "{{ localeconv.mon_decimal_point|escape('js') }}";
-var mon_thousands_sep = "{{ localeconv.mon_thousands_sep|escape('js') }}";
-var frac_digits = {{ localeconv.frac_digits }};
+var mon_decimal_point = "{{ accountingLocaleInfo.mon_decimal_point|escape('js') }}";
+var mon_thousands_sep = "{{ accountingLocaleInfo.mon_thousands_sep|escape('js') }}";
+var frac_digits = {{ accountingLocaleInfo.frac_digits }};
 var noDataForChart = '{{ trans('firefly.no_data_for_chart')|escape('js') }}';
 var showFullList = '{{ trans('firefly.show_full_list')|escape('js') }}';
 var showOnlyTop = '{{ trans('firefly.show_only_top',{number:listLength})|escape('js') }}';
-var accountingConfig = {{ accounting|json_encode|raw }};
+var accountingConfig = {{ accountingLocaleInfo.format|json_encode|raw }};
 var token = '{{ csrf_token() }}';
 var sessionStart = '{{ session('start').format('Y-m-d') }}';
 var sessionEnd = '{{ session('end').format('Y-m-d') }}';
diff --git a/tests/Feature/Controllers/JavascriptControllerTest.php b/tests/Feature/Controllers/JavascriptControllerTest.php
index 32625a8643..e35df91c1f 100644
--- a/tests/Feature/Controllers/JavascriptControllerTest.php
+++ b/tests/Feature/Controllers/JavascriptControllerTest.php
@@ -109,7 +109,6 @@ class JavascriptControllerTest extends TestCase
         $accountRepos->shouldReceive('findNull')->andReturn($account);
         $currencyRepos->shouldReceive('findNull')->andReturn($euro);
         $accountRepos->shouldReceive('getMetaValue')->withArgs([Mockery::any(), 'currency_id'])->andReturn('1');
-        Amount::shouldReceive('getJsConfig')->andReturn([])->once();
 
         $this->be($this->user());
         $this->changeDateRange($this->user(), $range);
@@ -135,7 +134,6 @@ class JavascriptControllerTest extends TestCase
         $accountRepos->shouldReceive('findNull')->andReturn($account);
         $currencyRepos->shouldReceive('findNull')->andReturn($euro);
         $accountRepos->shouldReceive('getMetaValue')->withArgs([Mockery::any(), 'currency_id'])->andReturn('1');
-        Amount::shouldReceive('getJsConfig')->andReturn([])->once();
 
         $this->be($this->user());
         $this->changeDateRange($this->user(), $range);
@@ -157,7 +155,6 @@ class JavascriptControllerTest extends TestCase
         $account = $this->getRandomAsset();
         $euro    = $this->getEuro();
         //Amount::shouldReceive('getDefaultCurrency')->andReturn($euro)->times(2);
-        Amount::shouldReceive('getJsConfig')->andReturn([])->once();
 
         $accountRepos  = $this->mock(AccountRepositoryInterface::class);
         $currencyRepos = $this->mock(CurrencyRepositoryInterface::class);
diff --git a/tests/Support/AmountTest.php b/tests/Support/AmountTest.php
new file mode 100644
index 0000000000..4a24bea25a
--- /dev/null
+++ b/tests/Support/AmountTest.php
@@ -0,0 +1,79 @@
+<?php
+
+namespace Tests\Support;
+
+use FireflyIII\Support\Amount;
+use Tests\TestCase;
+use Steam;
+
+class AmountTest extends TestCase
+{
+    /**
+     * @dataProvider getTestLocales
+     * @param string $locale
+     * @param string $expectedAmount
+     * @param string $symbol
+     * @param int $decimalPlaces
+     * @param string $amount
+     */
+    public function testFormatFlat(string $locale, string $expectedAmount, string $symbol, int $decimalPlaces, string $amount)
+    {
+        $this->mockDefaultConfiguration();
+        Steam::shouldReceive('getLocale')->andReturn($locale);
+        Steam::shouldReceive('getLocaleArray')->andReturn([$locale . ".UTF-8"]);
+
+        $amountObj = new Amount();
+        $result = $amountObj->formatFlat($symbol, $decimalPlaces, $amount, false);
+        $this->assertEquals($expectedAmount, $result);
+    }
+
+    public function getTestLocales()
+    {
+        return [
+            ['en_US', '£6,000.00', '£', 2, '6000.00000000'],
+            ['en_US', '-£6,000.00', '£', 2, '-6000.00000000'],
+            ['en_US', '$6,000.00', '$', 2, '6000.00000000'],
+            ['en_US', '-$6,000.00', '$', 2, '-6000.00000000'],
+            ['en_GB', '£6,000.00', '£', 2, '6000.00000000'],
+            ['en_GB', '-£6,000.00', '£', 2, '-6000.00000000'],
+            ['en_GB', '$6,000.00', '$', 2, '6000.00000000'],
+            ['en_GB', '-$6,000.00', '$', 2, '-6000.00000000'],
+            ['cs_CZ', '6 000,00 Kč', 'Kč', 2, '6000.00000000'],
+            ['cs_CZ', '-6 000,00 Kč', 'Kč', 2, '-6000.00000000'],
+            ['el_GR', '6.000,00 €', '€', 2, '6000.00000000'],
+            ['el_GR', '-6.000,00 €', '€', 2, '-6000.00000000'],
+            ['es_ES', '6.000,00 €', '€', 2, '6000.00000000'],
+            ['es_ES', '-6.000,00 €', '€', 2, '-6000.00000000'],
+            ['de_DE', '6.000,00 €', '€', 2, '6000.00000000'],
+            ['de_DE', '-6.000,00 €', '€', 2, '-6000.00000000'],
+            ['fr_FR', '6 000,00 €', '€', 2, '6000.00000000'],
+            ['fr_FR', '-6 000,00 €', '€', 2, '-6000.00000000'],
+            ['it_IT', '6.000,00 €', '€', 2, '6000.00000000'],
+            ['it_IT', '-6.000,00 €', '€', 2, '-6000.00000000'],
+            ['nb_NO', 'kr 6 000,00', 'kr', 2, '6000.00000000'],
+            ['nb_NO', '−kr 6 000,00', 'kr', 2, '-6000.00000000'],
+            ['nl_NL', '€ 6.000,00', '€', 2, '6000.00000000'],
+            ['nl_NL', '€ -6.000,00', '€', 2, '-6000.00000000'],
+            ['pl_PL', '6 000,00 zł', 'zł', 2, '6000.00000000'],
+            ['pl_PL', '-6 000,00 zł', 'zł', 2, '-6000.00000000'],
+            ['pt_BR', 'R$ 6.000,00', 'R$', 2, '6000.00000000'],
+            ['pt_BR', '-R$ 6.000,00', 'R$', 2, '-6000.00000000'],
+            ['ro_RO', '6.000,00 lei', 'lei', 2, '6000.00000000'],
+            ['ro_RO', '-6.000,00 lei', 'lei', 2, '-6000.00000000'],
+            ['ru_RU', '6 000,00 ₽', '₽', 2, '6000.00000000'],
+            ['ru_RU', '-6 000,00 ₽', '₽', 2, '-6000.00000000'],
+            ['zh_TW', 'NT$6,000.00', 'NT$', 2, '6000.00000000'],
+            ['zh_TW', '-NT$6,000.00', 'NT$', 2, '-6000.00000000'],
+            ['zh_CN', '¥6,000.00', '¥', 2, '6000.00000000'],
+            ['zh_CN', '-¥6,000.00', '¥', 2, '-6000.00000000'],
+            ['hu_HU', '6 000,00 Ft', 'Ft', 2, '6000.00000000'],
+            ['hu_HU', '-6 000,00 Ft', 'Ft', 2, '-6000.00000000'],
+            ['sv_SE', '6 000,00 kr', 'kr', 2, '6000.00000000'],
+            ['sv_SE', '−6 000,00 kr', 'kr', 2, '-6000.00000000'],
+            ['fi_FI', '6 000,00 €', '€', 2, '6000.00000000'],
+            ['fi_FI', '−6 000,00 €', '€', 2, '-6000.00000000'],
+            ['vi_VN', '6.000,00 đ', 'đ', 2, '6000.00000000'],
+            ['vi_VN', '-6.000,00 đ', 'đ', 2, '-6000.00000000'],
+        ];
+    }
+}