diff --git a/src/org/openbravo/erpCommon/utility/CashVATUtil.java b/src/org/openbravo/erpCommon/utility/CashVATUtil.java
--- a/src/org/openbravo/erpCommon/utility/CashVATUtil.java
+++ b/src/org/openbravo/erpCommon/utility/CashVATUtil.java
@@ -11,7 +11,7 @@
  * under the License. 
  * The Original Code is Openbravo ERP. 
  * The Initial Developer of the Original Code is Openbravo SLU 
- * All portions are Copyright (C) 2013-2015 Openbravo SLU
+ * All portions are Copyright (C) 2013-2016 Openbravo SLU
  * All Rights Reserved. 
  * Contributor(s):  ______________________________________.
  ************************************************************************
@@ -494,7 +494,7 @@
         for (final InvoiceTaxCashVAT_V itcv : line.getInvoiceTaxCashVAT_V()) {
           final TaxRate tax = itcv.getInvoiceTax().getTax();
           Invoice inv = itcv.getInvoiceTax().getInvoice();
-          if (tax.isCashVAT() && inv.equals(invoice)) {
+          if (tax.isCashVAT() && StringUtils.equals(inv.getId(), invoice.getId())) {
             final BigDecimal taxAmt = itcv.getTaxAmount();
             if (taxAmt.compareTo(BigDecimal.ZERO) != 0) {
               final DocTax m_tax = new DocTax(tax.getId(), tax.getName(), tax.getRate().toString(),