CANADA_CALCULATOR_ENABLED=false keeps customer calculations closed until final acceptance.
Controlled calculation
Canada T2026 MFN beta
Coverage
What Phase 35 automates
Fourteen exact 10-digit lines from selected CBSA chapters are included in the controlled source contract.
The beta calculates only the official MFN rate stored for the locked item.
When selected, GST is calculated on the entered Canadian-dollar customs value plus the calculated customs duty.
UST, MXT, CPTPT, CEUT and other preferential treatments are displayed by the official tariff but are not automatically claimed.
Anti-dumping/countervailing duties, surtaxes, safeguards, Chapters 98/99 and excise treatment remain outside automatic coverage.