diff --git a/README.md b/README.md
index 0e55279..5aabc10 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ Available addons
 addon | version | maintainers | summary
 --- | --- | --- | ---
 [intrastat_base](intrastat_base/) | 14.0.2.1.0 |  | Base module for Intrastat reporting
-[intrastat_product](intrastat_product/) | 14.0.1.5.0 |  | Base module for Intrastat Product
+[intrastat_product](intrastat_product/) | 14.0.1.5.1 |  | Base module for Intrastat Product
 [intrastat_product_generic](intrastat_product_generic/) | 14.0.1.0.0 |  | Generic Intrastat Product Declaration
 [product_harmonized_system](product_harmonized_system/) | 14.0.2.0.0 | [![alexis-via](https://github.com/alexis-via.png?size=30px)](https://github.com/alexis-via) [![luc-demeyer](https://github.com/luc-demeyer.png?size=30px)](https://github.com/luc-demeyer) | Base module for Product Import/Export reports
 [product_harmonized_system_delivery](product_harmonized_system_delivery/) | 14.0.1.1.0 | [![alexis-via](https://github.com/alexis-via.png?size=30px)](https://github.com/alexis-via) [![luc-demeyer](https://github.com/luc-demeyer.png?size=30px)](https://github.com/luc-demeyer) | Hide native hs_code field provided by the delivery module
diff --git a/intrastat_product/__manifest__.py b/intrastat_product/__manifest__.py
index deb8484..70ff04f 100644
--- a/intrastat_product/__manifest__.py
+++ b/intrastat_product/__manifest__.py
@@ -7,7 +7,7 @@
 
 {
     "name": "Intrastat Product",
-    "version": "14.0.1.5.0",
+    "version": "14.0.1.5.1",
     "category": "Intrastat",
     "license": "AGPL-3",
     "summary": "Base module for Intrastat Product",
diff --git a/intrastat_product/models/intrastat_product_declaration.py b/intrastat_product/models/intrastat_product_declaration.py
index 99add17..d490f5d 100644
--- a/intrastat_product/models/intrastat_product_declaration.py
+++ b/intrastat_product/models/intrastat_product_declaration.py
@@ -700,7 +700,8 @@ class IntrastatProductDeclaration(models.Model):
                     )
                 total_inv_weight += weight
 
-                amount_company_currency = -inv_line.balance
+                sign = invoice.move_type in ("in_invoice", "out_refund") and 1 or -1
+                amount_company_currency = sign * inv_line.balance
                 total_inv_product_cc += amount_company_currency
 
                 if inv_intrastat_line: