diff --git a/l10n_pt_account_invoicexpress/models/account_move.py b/l10n_pt_account_invoicexpress/models/account_move.py
index df4ba1bd..e8124986 100644
--- a/l10n_pt_account_invoicexpress/models/account_move.py
+++ b/l10n_pt_account_invoicexpress/models/account_move.py
@@ -76,6 +76,13 @@ def _compute_invoicexpress_doc_type(self):
         " If unset, InvoiceXpress will not be used.",
     )
 
+    def _compute_is_l10npt_vat_enabled(self):
+        super()._compute_is_l10npt_vat_enabled()
+        # Disable VAT PT options is InvoiceXpress is disabled
+        for invoice in self.filtered("invoice.is_l10npt_vat_enabled"):
+            if not invoice.can_invoicexpress:
+                invoice.is_l10npt_vat_enabled = False
+
     @api.constrains("journal_id", "company_id")
     def _check_invoicexpress_doctype_config(self):
         """
diff --git a/l10n_pt_vat/models/account_move.py b/l10n_pt_vat/models/account_move.py
index beba7f1d..c7fdaaf0 100644
--- a/l10n_pt_vat/models/account_move.py
+++ b/l10n_pt_vat/models/account_move.py
@@ -8,6 +8,7 @@
 class AccountMove(models.Model):
     _inherit = "account.move"
 
+    is_l10npt_vat_enabled = fields.Boolean(compute="_compute_is_l10npt_vat_enabled")
     vat_adjustment_norm_id = fields.Many2one(
         "account.vat.adjustment_norm",
         string="VAT Adjustment Norm",
@@ -25,6 +26,12 @@ class AccountMove(models.Model):
         readonly=False,
     )
 
+    def _compute_is_l10npt_vat_enabled(self):
+        for invoice in self:
+            invoice.is_l10npt_vat_enabled = (
+                invoice.country_code == "PT" and invoice.is_sale_document()
+            )
+
     @api.depends("country_code", "move_type", "invoice_line_ids")
     def _compute_l10npt_has_tax_exempt_lines(self):
         for invoice in self:
@@ -53,9 +60,7 @@ def action_post(self):
         """
         VAT Exemption reason is required if there are lines without tax
         """
-        for invoice in self.filtered(
-            lambda x: x.country_code == "PT" and x.is_sale_document()
-        ):
+        for invoice in self.filtered("is_l10npt_vat_enabled"):
             exempt_lines = invoice.invoice_line_ids.filtered(
                 lambda x: not x.tax_ids.filtered("amount")
             )
diff --git a/l10n_pt_vat/views/account_move_view.xml b/l10n_pt_vat/views/account_move_view.xml
index ddc33dd8..8928f3fe 100644
--- a/l10n_pt_vat/views/account_move_view.xml
+++ b/l10n_pt_vat/views/account_move_view.xml
@@ -8,16 +8,17 @@
         <field name="arch" type="xml">
 
             <data>
-                <!-- Add the VAT Adjustment Norm (Fields 40/41 of the VAT Statement) !-->
+                <!-- Add the VAT Adjustment Norm (Fields 40/41 of the VAT Statement) -->
                 <div name="journal_div" position="after">
+                    <field name="move_type" invisible="1" />
+                    <field name="is_l10npt_vat_enabled" invisible="1" />
                     <field
                         name="l10npt_vat_exempt_reason"
-                        attrs="{'invisible': [('country_code', '!=', 'PT')]}"
+                        attrs="{'invisible': [('is_l10npt_vat_enabled', '=', 'False')]}"
                     />
-                    <field name="move_type" invisible="1" />
                     <field
                         name="vat_adjustment_norm_id"
-                        attrs="{'invisible': ['|',('country_code', '!=', 'PT'),('move_type', 'not in', ['out_refund', 'in_refund'])]}"
+                        attrs="{'invisible': ['|',('is_l10npt_vat_enabled', '=', False),('move_type', 'not in', ['out_refund', 'in_refund'])]}"
                         domain="[('move_type', '=', move_type)]"
                     />
                 </div>