diff --git a/so/src/public/nccloud/api/so/saleinvoice/operator/IAPISaleInvMaitainImpl.java b/so/src/public/nccloud/api/so/saleinvoice/operator/IAPISaleInvMaitainImpl.java
index 5787c17..3fb851b 100644
--- a/so/src/public/nccloud/api/so/saleinvoice/operator/IAPISaleInvMaitainImpl.java
+++ b/so/src/public/nccloud/api/so/saleinvoice/operator/IAPISaleInvMaitainImpl.java
@@ -407,9 +407,10 @@ public class IAPISaleInvMaitainImpl {
     }
 
     private String getTaxcode(String taxrateStr) throws BusinessException {
+    	UFDouble taxrate = new UFDouble(taxrateStr==null?"0":taxrateStr).multiply(100).setScale(2, UFDouble.ROUND_HALF_UP);
         IUAPQueryBS queryBS = NCLocator.getInstance().lookup(IUAPQueryBS.class);
-        String sql = " select code FROM bd_taxrate tt inner join bd_taxcode tc on tt.pk_taxcode=tc.pk_taxcode where taxrate='"
-                + taxrateStr + "' AND ROWNUM = 1 ";
+        String sql = " select code FROM bd_taxrate tt inner join bd_taxcode tc on tt.pk_taxcode=tc.pk_taxcode where TO_NUMBER(taxrate)='"
+                + taxrate.toString() + "' AND ROWNUM = 1 ";
         String taxcodeStr = (String) queryBS.executeQuery(sql, new ColumnProcessor());
         return taxcodeStr;
     }