diff --git a/app/Livewire/TransactionImportWire.php b/app/Livewire/TransactionImportWire.php
index 4ffcbd2..938f472 100644
--- a/app/Livewire/TransactionImportWire.php
+++ b/app/Livewire/TransactionImportWire.php
@@ -133,11 +133,12 @@ public function parseCSV() : void
                 // normalize data
                 foreach ($lineArray as $key => $cell){
                     // tests
-                    $moneyTest = Regex::match('/([0-9]+),([0-9]{1,2})/', $cell);
+                    $moneyTest = Regex::match('/(\-?)([0-9]+),([0-9]{1,2})/', $cell);
 
                     // conversions
                     if($moneyTest->hasMatch()){
-                        $lineArray[$key] = $moneyTest->group(1) . '.' . $moneyTest->group(2);
+                        // group 1: sign, group 2: money before delimiter, group 3: cents after delimiter
+                        $lineArray[$key] = $moneyTest->group(1) . $moneyTest->group(2) . '.' . $moneyTest->group(3);
                     }
                 }
                 return $lineArray;
diff --git a/app/Rules/CsvTransactionImport/BalanceRule.php b/app/Rules/CsvTransactionImport/BalanceRule.php
index 6c720bb..eff7068 100644
--- a/app/Rules/CsvTransactionImport/BalanceRule.php
+++ b/app/Rules/CsvTransactionImport/BalanceRule.php
@@ -32,13 +32,17 @@ public function __construct(Collection $differences,Collection $balances,?string
     public function validate(string $attribute, mixed $value, Closure $fail): void
     {
         try {
-            // if there is no inital balance (no prior transaction) then make sure4 the first csv entry as correct
+            // if there is no initial balance (no prior transaction) then make sure the first csv entry as correct
             $currentBalance = $this->initalBalance ?? bcsub($this->balances[0], $this->differences[0],2);
             foreach ($this->differences as $id => $currentValue){
                 $currentBalance = bcadd($currentBalance, $currentValue, 2);
                 $csvBalance = $this->balances->get($id);
                 if($currentBalance !== $csvBalance){
-                    $fail(__('konto.csv-verify-balance-error'));
+                    $fail(__('konto.csv-verify-balance-error', [
+                        'error-in-row' => $id + 1,
+                        'calc-saldo' => $currentBalance,
+                        'csv-saldo' => $csvBalance,
+                    ]));
                 }
             }
         }catch (\ValueError $error){
diff --git a/lang/de/konto.php b/lang/de/konto.php
index ac0192f..3e2e09d 100644
--- a/lang/de/konto.php
+++ b/lang/de/konto.php
@@ -50,6 +50,6 @@
     'csv-verify-iban-error' => 'Validierungs-Fehler: Enthält ungültige IBANs',
     'csv-verify-money-error' => 'Validierungs-Fehler: Enthält nicht-numerische Daten',
     'csv-verify-balance-error-wrong-datatype' => 'Validierungs-Fehler: Falscher Datentyp',
-    'csv-verify-balance-error' => 'Validierungsfehler: Es besteht evtl. keine lückenlose Transaktionshistorie.'
+    'csv-verify-balance-error' => 'Validierungsfehler: Es besteht keine lückenlose Transaktionshistorie in Zeile :error-in-row der CSV. Berechnetes Saldo :calc-saldo ≠ CSV-Saldo :csv-saldo'
 
 ];