Free customs tools
Two tools for declarants and importers, built from the EU’s own tariff: find the commodity code and its duty rate, then work out customs value, duty and import VAT.
HS code finder for the EU tariff
The Combined Nomenclature 2026, searchable by description or code, with the conventional duty rate on every line.
EU import duty calculator
Customs value, duty and import VAT from the invoice price, the transport costs and the duty rate.
Athren prepares customs cases from the shipment documents for customs brokers. These tools are the same tariff knowledge, open to anyone, with no account and no limit.
The guides explain what the tools assume: how a commodity code is built, what the customs value includes and what the invoice must say. Read the guides
Which other software prepares declarations or classifications with AI, and who files in each case: the comparison, with sources.
Athren does this from the documents
Athren reads the shipment email with the invoice, the packing list and the transport document, proposes a code for every clear invoice line and asks one question where the invoice is not enough. Your declarant checks what is open and files the declaration. Athren files nothing.
Send us 20 past cases.
For customs brokers in Germany and the Netherlands. We prepare each one, you judge the result.
Pick a time below for a thirty-minute call, or write to us.
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