diff --git a/addons/account/models/account_reconcile_model.py b/addons/account/models/account_reconcile_model.py
index 6fa63faf8c0..c56734d62f5 100644
--- a/addons/account/models/account_reconcile_model.py
+++ b/addons/account/models/account_reconcile_model.py
@@ -5,6 +5,7 @@ from odoo.tools import float_compare, float_is_zero
 from odoo.exceptions import UserError
 
 import re
+from math import copysign
 
 
 class AccountReconcileModel(models.Model):
@@ -249,7 +250,7 @@ class AccountReconcileModel(models.Model):
         elif self.amount_type == "regex":
             match = re.search(self.amount_from_label_regex, st_line.name)
             if match:
-                line_balance = float(re.sub(r'\D' + self.decimal_separator, '', match.group(1)).replace(self.decimal_separator, '.')) * (1 if balance > 0.0 else -1)
+                line_balance = copysign(float(re.sub(r'\D' + self.decimal_separator, '', match.group(1)).replace(self.decimal_separator, '.')) * (1 if balance > 0.0 else -1), balance)
             else:
                 line_balance = 0
         else:
@@ -286,7 +287,7 @@ class AccountReconcileModel(models.Model):
             elif self.second_amount_type == "regex":
                 match = re.search(self.second_amount_from_label_regex, st_line.name)
                 if match:
-                    line_balance = float(re.sub(r'\D' + self.decimal_separator, '', match.group(1)).replace(self.decimal_separator, '.'))
+                    line_balance = copysign(float(re.sub(r'\D' + self.decimal_separator, '', match.group(1)).replace(self.decimal_separator, '.')), remaining_balance)
                 else:
                     line_balance = 0
             else:
diff --git a/addons/account/static/src/js/reconciliation/reconciliation_model.js b/addons/account/static/src/js/reconciliation/reconciliation_model.js
index d1331087cdc..2854ac4760b 100644
--- a/addons/account/static/src/js/reconciliation/reconciliation_model.js
+++ b/addons/account/static/src/js/reconciliation/reconciliation_model.js
@@ -1243,6 +1243,7 @@ var StatementModel = BasicModel.extend({
                     matching = matching[1].replace(new RegExp('\\D' + values.decimal_separator, 'g'), '');
                     matching = matching.replace(values.decimal_separator, '.');
                     amount = parseFloat(matching);
+                    amount = line.balance.amount > 0 ? amount : -amount;
                 }
                 break;
             case 'fixed':