GST default on a copied invoice defaulting to GST Inclusive / Incorrectly
A slight bug found - I just had a supplier ask why we had charged less for the last 2 months. I checked and it looks like Xero defaulted to "GST Inclusive" invoices when copying an invoice that is GST-Exclusive, even when:
1) the previous Invoice is set to "GST Exclusive"
2) the Financial settings, tax defaults, For sales is set to for"Based on last sale"
3) Note - No Contact defaults for GST set.
Somehow, my $500 + GST invoices = $575 has been reduced to $500 including GST.
Previously Xero would copy over the invoice exactly, but now Xero appears to looks at my very last invoice generated (in this case to another customer - which DID happen to be a GST inclusive invoice). The change in the coding was made sometime in June 2025, so people - check your copied invoices from 30 June 2025 onwards!
As a work-around I have set the organisation default to "GST Exclusive" and will have to adjust for the odd GST inclusive invoices I do.
Murray Thompson
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nishimoto sonkirven
commented
A recent bug in Xero has been causing copied invoices to default to "GST Inclusive" even when the original invoice is GST-Exclusive, your financial settings are set to "Based on last sale," and no contact defaults for GST are applied. This resulted in $500 + GST invoices incorrectly showing as $500 including GST, likely due to Xero referencing the very last invoice generated, which happened to be GST-Inclusive. This change was implemented around June 2025, so businesses should carefully check all copied invoices from 30 June 2025 onwards. As a temporary fix, setting the organisation default to "GST Exclusive" helps, though occasional GST-Inclusive invoices may still require manual adjustment. For reference or further discussion, see an example here: https://pileou-face.fr/ .