Government agencies subject to the Government Procurement Rules (100+ agencies), and — from 1 Jan 2027, indirectly — their large domestic suppliers (> NZ$33m revenue in each of the two preceding accounting periods). International suppliers and international invoices are excluded. Voluntary for B2B generally; ~114,000 NZ businesses are registered to receive e-invoices.
The NZ obligation is procurement law, not tax law — it does not appear in IRD guidance and teams looking only at revenue authorities will miss it entirely. The large-supplier trigger is a two-year test (>NZ$33m in EACH of the two preceding accounting periods, group-inclusive), so a single strong year does not catch you and a single weak year does not release you. The 5-business-day payment rule is a genuine commercial incentive to be Peppol-enabled: e-invoices get paid twice as fast as PDF.
4 of 4 are primary sources. Mandate dates move — treat this page as a starting point and confirm against the primary source before committing a plan.
Work hands-on with the EN 16931 formats behind this mandate — no login, nothing uploaded.
Scrub the New Zealand timeline and watch an invoice become the document each deadline will require.
Open time machine →Open a UBL, Factur-X or XRechnung file and read every EN 16931 field.
Open viewer →Generate a well-formed sample invoice to test your mapping.
Open generator →Check whether your New Zealand partner is reachable on Peppol.
Open lookup →A page is a starting point. A scoped analysis gives you the specification, the mapping and the effort — in weeks, not quarters.
