Where do the figures come from?

Every morning we read the official sources of Türkiye, the EU and the US: the Turkish Official Gazette, the Turkish Ministry of Trade, the EU Official Journal, TARIC, the US Federal Register and the US tariff schedule. For your export markets we also read the tariffs of the UK, Egypt, Morocco, the Gulf states and the Eurasian Economic Union, WTO notifications and the EU's carbon price. Exchange rates are those published by the Central Bank of Türkiye, the European Central Bank and the US Federal Reserve. The app's Activity page shows when each source was last read.

Next to every figure on screen is its source: the rules, your quote, your declarations or your freight rate card.
When you open a change, you see the relevant part of the official text and the dates it was published and takes effect. “Open the source” and “Open the original” take you to the text itself.
Company → Rates shows which list a rate comes from, with an image of the cell in the list.

A change: when it takes effect, the official lines it rests on and what it means for you

The figures are for information; check with your customs broker which rate applies on your declaration.