Tollmark

Sources

Where the numbers come from, under what licence, and how often they are refreshed.

Last updated

Tollmark holds no opinion about what duty should be. Every rate on this site is ingested from an official tariff source, kept with the legal instrument it came from and the date it took effect, and re-checked nightly. The raw response behind every figure is archived, so any published number can be traced back to the exact bytes that produced it.

Great Britain tariff

Territory
Great Britain (GB)
Endpoint
www.trade-tariff.service.gov.uk/api/v2
What we hold
Duty rates, import VAT, and the conditions attached to them.
Licence
Open Government Licence v3.0
Refresh
Nightly at 03:00 UTC
Attribution
Contains public sector information licensed under the Open Government Licence v3.0.

Northern Ireland tariff

Territory
Northern Ireland (XI)
Endpoint
www.trade-tariff.service.gov.uk/xi/api/v2
What we hold
Duty rates only. Not enough to quote a landed cost — see below.
Licence
Open Government Licence v3.0
Refresh
Nightly at 03:00 UTC
Attribution
Contains public sector information licensed under the Open Government Licence v3.0.

Norway tariff

Territory
Norway (NO)
Endpoint
data.toll.no
What we hold
Duty rates, import VAT, and the Norwegian commodity nomenclature — which names commodity codes on every Norwegian-language page, including those about British duty. Classification conditions are not ingested yet.
Licence
Creative Commons Attribution 4.0
Refresh
On each ingestion run — not yet part of the nightly job
Attribution
Contains data from Tolletaten (Norwegian Customs), licensed under CC BY 4.0.

Northern Ireland: rates, not totals

Northern Ireland is charged the EU's Common External Tariff rather than the UK Global Tariff, so its duty can differ from Great Britain's on the same goods. Across the commodity codes this site covers the two agree far more often than they differ, and where they differ the difference is shown on the relevant category page.

We publish those rates and no Northern Ireland totals. Its customs relief follows EU rules — from 1 July 2026, €3 per item on consignments under €150 of intrinsic value — while its VAT follows UK rules, because Northern Ireland remains part of the UK VAT system. Those are euro figures on a sterling territory, and this site does not convert currencies inside a quote. Leaving the relief out would overstate every small parcel; converting it ourselves would invent a number. So the rates are published and the total is not.

Goods moving from Great Britain to Northern Ireland are a different regime again, and nothing here describes it.

What we could not store

Some things an upstream source publishes do not fit our model, and we record those rather than quietly dropping them. Two cases recur:

Coverage

In development. Ingestion currently covers the United Kingdom. Other territories show a coverage-gap state in the calculator until their tariff data is loaded and checked — we would rather say "we do not have that" than produce a plausible-looking number.

Corrections

Every correction we make is logged publicly and dated. If you think a figure here is wrong, tell us — see the corrections log for what has changed and when.