diff --git a/Compras/Compras.aspx.vb b/Compras/Compras.aspx.vb
index f0e41fc77..375951b37 100644
--- a/Compras/Compras.aspx.vb
+++ b/Compras/Compras.aspx.vb
@@ -18036,14 +18036,16 @@ Partial Class Compras_Compras
 
                     ViewState("RetIVA") = If(PS("RetIVA").ToString = "-1", ViewState("RetIVA"), PS("RetIVA").ToString).ToString
                     ViewState("RetISR") = If(PS("RetISR").ToString = "-1", ViewState("RetISR"), PS("RetISR").ToString).ToString
-                    ViewState("IEPSPS") = If(PS("IEPSPorcentaje").ToString = "-1", ViewState("IEPSPS"), PS("IEPSPorcentaje").ToString).ToString
+                    If TxtIEPSModal.Text = "" Then
+                        TxtIEPSModal.Text = FormatoNumero(PS("IEPSPorcentaje").ToString.ToDecimal * 100, 0)
+                    End If
                     ViewState("IEPSPSIVA") = If(PS("IEPSGrabaIVA").ToString = "True", PS("IEPSPorcentaje").ToString.ToDouble, 0)
 
 
                     'TxtIVAModal.Text = FormatoNumero(ViewState("IVAPS").ToString().ToDouble * 100, 0)
                     TxtRetIVAModal.Text = FormatoNumero(ViewState("RetIVA").ToString().ToDouble * 100, 0)
                     TxtRetISRModal.Text = FormatoNumero(ViewState("RetISR").ToString().ToDouble * 100, 0)
-                    TxtIEPSModal.Text = FormatoNumero(ViewState("IEPSPS").ToString().ToDouble * 100, 0)
+
 
                     UpIVA.Update()