Summary
- Sri Lanka postponed the effective date of its revised VAT invoice format.
- The new date is October 1, 2026, replacing the previously reported July 1, 2026 date.
- VAT-registered suppliers should continue testing revised invoice templates and avoid treating the deferral as cancellation. [comarch.com]
Article
A Short Implementation Extension
The postponement gives businesses additional time to update invoice layouts, required tax data, ERP templates and interfaces. The change forms part of a wider program of Sri Lankan VAT reforms and should therefore be monitored together with changes to VAT administration and reporting.
Businesses that had already deployed the new format should confirm whether continued use is accepted during the interim period. Those still relying on legacy templates should establish a controlled deployment plan before October 1.
Readiness Actions
Testing should include standard invoices, credit and debit notes, foreign-currency documents, branch-issued invoices and documents produced through third-party billing systems. Tax teams should also ensure that changes made to visible invoice layouts are mirrored in structured data, archives and accounts-payable validation rules.
External resources
Comarch — Sri Lanka postpones revised VAT invoice format amid wider VAT reforms
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