diff --git a/Ventas/Ventas.aspx.vb b/Ventas/Ventas.aspx.vb
index fa4571f56..de5366a5a 100644
--- a/Ventas/Ventas.aspx.vb
+++ b/Ventas/Ventas.aspx.vb
@@ -24747,6 +24747,10 @@ Partial Class Ventas
 
         GvImpuestosLocales2.Enabled = True
 
+        If DdlTipoComprobante.SelectedValue = "Cot" Then
+            DdlIVA.Visible = True
+        End If
+
         BloqueaCondiconesPago()
 
         UpPS.Update()
@@ -26539,6 +26543,11 @@ Partial Class Ventas
 #Region "PORCENTAJE IVA"
     Protected Sub DdlIVA_SelectedIndexChanged(sender As Object, e As EventArgs)
         If Not CveVenta > 0 Or EsCreaApartirDe Or CveDevolucion > 0 Then RecalculaIVA()
+
+        If ModalidadEdicion AndAlso DdlTipoComprobante.SelectedValue = "Cot" Then
+            RecalculaIVA()
+        End If
+
     End Sub
 
     Private Sub RecalculaIVA()