Separate a suit carried home in your baggage from one shipped to you. CBP’s personal-exemption guidance includes conditions concerning accompanied goods and declarations; it specifically distinguishes goods sent later. Do not automatically transfer a traveler’s exemption to a shipped order. (help.cbp.gov)

For Q10, request a dated estimate using the actual garment description, fiber composition, origin, value, shipping or baggage route and anticipated entry timing. Record who pays duties, clearance and carrier charges, and recheck before shipment or travel. CBP advises consulting an import specialist about applicable charges and notes that state and local taxes are separate from its collections. (help.cbp.gov)

This quiz intentionally supplies no blanket Vietnam-to-US tariff percentage or duty-free promise. It is a preparation tool, not an individual customs determination.