Model a Section 122 import surcharge as a separate planning layer with effective dates, source evidence, exemptions, and broker-review questions.
A Section 122 surcharge should be modeled as a separate additional tariff layer with its own source, effective date, expiration date, exemptions, and CBP filing guidance. Do not merge it into the base HTS rate or assume it applies to every shipment without source review.
Track effective dates and expiration separately.
Keep it distinct from MFN, Section 301, and Section 232.
Check exemptions and filing instructions before relying on it.
Use the additional tariff field for the surcharge percentage, then attach the official action, Federal Register or White House source, CBP guidance, effective date, end date, and any exemption notes.
Confirm whether the surcharge applies by origin, product, entry date, preference program, USMCA eligibility, or other exemption. Also check whether another tariff layer still applies.
A temporary layer can change purchase-order timing, inventory pricing, and refund expectations. Preserve dates next to the estimate so the scenario does not age into a false assumption.
Planning-only notice: TariffsChart is not a customs broker, law firm, tax advisor, or government authority. Verify classifications, rates, effective dates, exclusions, and filing instructions with official sources and qualified professionals.
Use the additional tariff field and keep the source, date, and exemption notes attached.
Not automatically. They are separate authorities and should be reviewed separately.
Yes. Even a temporary layer can erase margin or change whether inventory should be ordered now.
