diff --git a/web/org.openbravo.retail.posterminal/js/pointofsale/model/pointofsale-model.js b/web/org.openbravo.retail.posterminal/js/pointofsale/model/pointofsale-model.js
--- a/web/org.openbravo.retail.posterminal/js/pointofsale/model/pointofsale-model.js
+++ b/web/org.openbravo.retail.posterminal/js/pointofsale/model/pointofsale-model.js
@@ -511,7 +511,7 @@
         }, {
           label: OB.I18N.getLabel('OBMOBC_LblCancel')
         }]);
-      } else if ((OB.DEC.sub(receipt.getPayment(), receipt.getGross())!==0) && (!receipt.isLayaway() && !receipt.get('paidOnCredit'))) {
+      } else if ((OB.DEC.abs(receipt.getPayment())!==OB.DEC.abs(receipt.getGross())) && (!receipt.isLayaway() && !receipt.get('paidOnCredit'))) {
         OB.UTIL.showConfirmation.display(OB.I18N.getLabel('OBPOS_PaymentAmountDistinctThanReceiptAmountTitle'), OB.I18N.getLabel('OBPOS_PaymentAmountDistinctThanReceiptAmountBody'), [{
           label: OB.I18N.getLabel('OBMOBC_LblOk'),
           isConfirmButton: true,