diff --git a/addons/l10n_ar/__manifest__.py b/addons/l10n_ar/__manifest__.py
index a3fe30b7548..25a8589cbf6 100644
--- a/addons/l10n_ar/__manifest__.py
+++ b/addons/l10n_ar/__manifest__.py
@@ -3,7 +3,7 @@
 {
     'name': 'Argentina - Accounting',
     'icon': '/base/static/img/country_flags/ar.png',
-    'version': "3.3",
+    'version': "3.4",
     'description': """
 Functional
 ----------
diff --git a/addons/l10n_ar/models/account_journal.py b/addons/l10n_ar/models/account_journal.py
index 2880b805a4b..8d848304d73 100644
--- a/addons/l10n_ar/models/account_journal.py
+++ b/addons/l10n_ar/models/account_journal.py
@@ -55,10 +55,10 @@ class AccountJournal(models.Model):
                 '3': ['B', 'C', 'I'],
                 '4': ['B', 'C', 'I'],
                 '5': ['B', 'C', 'I'],
-                '6': ['B', 'C', 'I'],
+                '6': ['A', 'B', 'C', 'I'],
                 '9': ['E'],
                 '10': ['E'],
-                '13': ['B', 'C', 'I'],
+                '13': ['A', 'B', 'C', 'I'],
                 '99': ['B', 'C', 'I']
             },
         }
diff --git a/addons/l10n_ar/views/report_invoice.xml b/addons/l10n_ar/views/report_invoice.xml
index aa36001ad36..0371d2b67c3 100644
--- a/addons/l10n_ar/views/report_invoice.xml
+++ b/addons/l10n_ar/views/report_invoice.xml
@@ -239,6 +239,14 @@
 
             </div>
         </xpath>
+
+        <!-- RG 5003: Add legend for 'A' documents that have a Monotribuista receptor -->
+        <p name="comment" position="after">
+            <p t-if="o.partner_id.l10n_ar_afip_responsibility_type_id.code in ['6', '13'] and o.l10n_latam_document_type_id.l10n_ar_letter == 'A'" >
+                El crédito fiscal discriminado en el presente comprobante, sólo podrá ser computado a efectos del Régimen de Sostenimiento e Inclusión Fiscal para Pequeños Contribuyentes de la Ley Nº 27.618
+            </p>
+        </p>
+
     </template>
 
     <!-- FIXME: Temp fix to allow fetching invoice_documemt in Studio Reports with localisation -->