Saved products and safe prefill
Reuse stable HTS and origin facts while confirming every current shipment fact.
Read guideProduct documentation
Use the workflow without losing the evidence.
TariffCalc separates stable product facts from changing shipment facts, preserves immutable results and keeps unsupported tariff scope visible. These guides explain the product controls.
Core workflows
Four guides for repeatable work
Account and workspace features remain environment-gated until final acceptance.
Compare saved calculations
Read two immutable snapshots side by side without silently recalculating history.
Read guideExport calculation history
Download account-owned CSV history with formulas, warnings, evidence and spreadsheet safeguards.
Read guidePrivacy and data rights
Request export, correction or governed deletion from the authenticated account workflow.
Read guideStill blocked?
Route the issue to the right evidence queue.
Use support for product help and the correction form for a suspected tariff-data, source or calculation issue.