Static seed matching first
The HS Code Finder uses seed examples, keyword matching, material clues, usage terms, confidence labels, risk flags, and review questions. It returns candidate codes for review before filing.
How TariffCatalog Works
Methodology
The formulas, estimate-only rules, HS candidate logic, local CSV parsing, PDF generation, and source-review practices behind TariffCatalog.
Last reviewed: July 2026Estimate-only customs toolsVerify before filing
Manual rates, no hardcoded tariff claims
Total import cost is customs value plus base duty, additional tariff, tax or VAT, brokerage, handling, and other fees. Users enter rates manually after checking the relevant official tariff source.
Shipment cost basis
Landed cost includes product cost, freight, insurance, duty, tax, and import fees so sellers can estimate the cost basis for an international shipment.
Delivered-duty-paid preparation
DDP estimate equals factory goods, freight, insurance, duty, additional tariff, taxes, broker fees, delivery, and markup. It is quote preparation support only.
No catalog storage
CSV files are parsed locally in the browser. TariffCatalog does not upload, store, or write back product catalog files from the checker.
Static first, minimal dynamic endpoints
Astro pages are static and crawlable. Cloudflare Pages Functions handle waitlist and correction submissions. D1 stores only lightweight form records.