Not yet supported

We would rather omit a jurisdiction than ship a rate or rule we cannot stand behind. The following were researched but are not yet shipped, each with the reason. They are tracked for inclusion once the data is verified against primary sources.

Awaiting primary-source rate verification

Successive primary-source verification rounds moved Taiwan, UAE, Saudi Arabia, Bahrain, Oman, Türkiye, Chile, Indonesia, Vietnam, the Philippines, Japan, South Korea, Thailand, Ukraine and Malaysia into supported. The following remain omitted:

Rate known, destination-taxation mechanics not yet verified — their standard rate is confirmed (dated Big-Four), but whether/how they tax foreign digital suppliers at destination (and the registration threshold) was not independently verified, so they are held until that mechanic is confirmed:

Israel (18%), South Africa (15%), Nigeria (7.5%), Kenya (16%), Egypt (14%), Morocco (20%), Colombia (19%), Peru (18%).

Genuinely not a clean single-rate regime:

China — VAT is tiered 13/9/6% (6% is the modern/e-services band) with no single "digital services" rate; the unified VAT Law effective 1 Jan 2026 keeps the tiered structure. Omitted rather than hard-code a judgment-call 6%. Argentina — national IVA (21%) is entangled with sub-national ingresos brutos, so it is not cleanly shippable as a single national rate.

Why omitted: the engine models these regimes fine, but shipping an unverified rate or mechanic would be worse than shipping nothing.

Not implemented (no VAT)

Qatar and Kuwait have not implemented VAT — there is no rate to charge. (Qatar is trending toward a possible ~2027 rollout.)

Pakistan — partial data

Structurally a federal-goods (FBR, ~18%) vs provincial-services split. Only the Sindh service rate (15%, eff. 1 Jul 2024) and the federal goods rate are confirmed; the Punjab, Khyber Pakhtunkhwa and Balochistan provincial service rates are not yet verified. Why omitted: a Pakistan regime that only covers one province would misrepresent coverage; it is held until all provincial rates are confirmed.

Brazil — genuinely hard, needs local/commercial data

The current system stacks ICMS (VAT across 27 states, with tax substitution), ISS (service tax across ~5,570 municipalities), IPI and PIS/COFINS. The municipal ISS and state ICMS rate/rule data are too granular to own and must be sourced commercially or locally. Why omitted: we will not fabricate ~5,570 municipal rates. The 2023 reform (EC 132/2023, LC 214/2025) replaces these with a dual VAT (CBS federal + IBS sub-national), phasing in 2026–2033 — a far more ownable structure that we intend to support as it takes effect.

Out of scope entirely: e-invoicing / clearance

This engine calculates tax rates. Mandatory e-invoicing / real-time clearance mandates — Brazil NF-e/NFS-e, India IRN, Italy SdI, Mexico CFDI, Poland KSeF, Saudi ZATCA, and others — are a separate invoicing concern and are not, and will not be, part of the tax-rate engine.