Order change manager: Recalculate tax of zero-valued positions (Z#23223874)

2026-02-27 10:12:27 +00:00 · 2026-02-26 16:57:32 +01:00
1 changed files with 3 additions and 3 deletions
--- a/src/pretix/base/services/orders.py
+++ b/src/pretix/base/services/orders.py
@@ -1799,8 +1799,6 @@ class OrderChangeManager:
            tax_rule = tax_rules.get(pos.pk, pos.tax_rule)
            if not tax_rule:
                continue
-            if not pos.price:
-                continue

            try:
                new_rate = tax_rule.tax_rate_for(ia)
@@ -1817,7 +1815,9 @@ class OrderChangeManager:
                                           override_tax_rate=new_rate, override_tax_code=new_code)
                self._totaldiff_guesstimate += new_tax.gross - pos.price
                self._operations.append(self.PriceOperation(pos, new_tax, new_tax.gross - pos.price))
-                self._invoice_dirty = True
+                if pos.price:
+                    # We do not consider the invoice dirty if only 0€-valued taxes are changed
+                    self._invoice_dirty = True

    def cancel_fee(self, fee: OrderFee):
        self._totaldiff_guesstimate -= fee.value