UNCTAD · Tariff calculator · working documents

The tariff calculator: from the Burundi prototype to a calculator any portal can embed

The documents of the tariff calculator, for the analyst. Start with progress, then the concept note. New pieces go on top.

Where it stands

as of 29-09-2026
Stage Step 1 of 7: the concept note is reviewed (29-09-2026); 20 of 21 findings are folded in; every question is answered and the note waits for its final agreement; see progress.
System Burundi's prototype at tariff-bi.eregistrations.dev and eRegulations v7's calculator both call OBR. The repository unctad-ai/tariff-calculator-platform holds these documents only (D17, D18); the calculator is not started.
Next step The short specifications, step 2, one page per module, once the concept note is agreed.
Waiting on The analyst's final agreement on the concept note. ?13 is deferred until the calculator is finished.

Questions waiting · 0

Every question of the concept note is answered.

Deferred: ?13, when a computed figure may reach the public, decided once the calculator is finished.

Documents · 6

Start here

Date Type Document What it is
29-09-2026 Process Progress Seven steps from concept note to the tool, each through its four gates; where the calculator stands.
29-09-2026 Concept note Concept note · Markdown What the calculator is, two providers behind its own contract, the tariff data model, embedding and eRegulations, pilots, OBR's requests, risks; six decisions taken, eight asked.
29-09-2026 Review Concept note: the reviews · Markdown Claude and Codex, 29 findings merged into 21, each with what became of it.
29-09-2026 Dictionary Dictionary · Markdown Every term in its sense here: customs and trade, Burundi's charges, tariff data, the calculator, its origins, the way the work runs. Searchable.
29-09-2026 Log Decisions taken · Markdown D1 to D26, each with its date and where it is recorded.

Background

Date Type Document What it is
25-09-2026 Handover The Burundi prototype's handover, in docs/handover/ of the prototype repository Task status after the OBR meeting, measured facts, the 21 OBR defects, legal basis of each tax. Not published here.

Decisions taken · 26

# Date Decision Recorded in
D26 29-09-2026 One address per country: calculator-bi.eregistrations.dev and so on concept note §2
D25 29-09-2026 At least twenty golden cases; known OBR defects exempted by name concept note §4
D24 29-09-2026 Pilot 1 against OBR production with v7's Burundi settings concept note §3
D23 29-09-2026 The calculator's own contract; no provider asked to change concept note §3
D22 29-09-2026 UNCTAD runs it and maintains the data for now; then decided with each authority concept note §8
D21 29-09-2026 Rwanda's answers from the rwandatrade.rw tariff API concept note §7
D20 29-09-2026 One installation per country; settings on its administration page concept note §3
D19 29-09-2026 This project does not touch v7; v7 receives other requests' changes concept note §5
D18 29-09-2026 Documents only until step 7; the template comes in then, its origin recorded index
D17 29-09-2026 The repository and the documents' site before final agreement; no product code index
D16 29-09-2026 New repository: unctad-ai/tariff-calculator-platform concept note §9
D15 29-09-2026 Exports through the ASYCUDA provider only concept note §9
D14 29-09-2026 OBR's tasks of 24-09 done in today's calculator, carried here as requirements concept note §9
D13 29-09-2026 Pilot 2 is Rwanda concept note §7
D12 29-09-2026 Golden cases equal OBR after rounding, tax by tax concept note §4
D11 29-09-2026 No computed figure when ASYCUDA is down, unless the country allows it concept note §3
D10 29-09-2026 Specifications are Markdown; the /docs pages are generated from them concept note §6
D9 29-09-2026 Embedding by iframe or one script tag, with a per-country allowlist concept note §5
D8 29-09-2026 Seven steps, four gates; every role written "analyst" concept note §6
D7 29-09-2026 calculator.eregistrations.dev, documents at /docs concept note §2
D6 29-09-2026 Start from vertical-base concept note §6
D5 29-09-2026 Pilot 1 Burundi in shadow mode against OBR; pilot 2 a second EAC member concept note §7
D4 29-09-2026 Customs' answer is never corrected; our figures are estimates concept note §2
D3 29-09-2026 Two providers behind one contract; TARIC-style data concept note §3
D2 29-09-2026 Built on its own first; v7 untouched until pilot 1 passes concept note §5
D1 29-09-2026 One calculator; v7 embeds it and later retires its ASYCUDA code concept note §5
Claude, for the analyst · UNCTAD · working material, hidden from search engines Updated · 29-09-2026