diff --git a/addons/account/models/account_move.py b/addons/account/models/account_move.py
index 0a16b75b670..3debf0e4c47 100644
--- a/addons/account/models/account_move.py
+++ b/addons/account/models/account_move.py
@@ -2776,7 +2776,7 @@ class AccountMoveLine(models.Model):
             currency = record.company_id.currency_id
             audit_str = ''
             for tag in record.tag_ids:
-                tag_amount = (tag.tax_negate and -1 or 1) * (record.move_id.is_outbound() and -1 or 1) * record.balance
+                tag_amount = (tag.tax_negate and -1 or 1) * (record.move_id.is_inbound() and -1 or 1) * record.balance
 
                 if tag.tax_report_line_ids:
                     #Then, the tag comes from a report line, and hence has a + or - sign (also in its name)