Tariff exclusions are one of the biggest sources of recoverable duty, but they come with a catch: they only apply within specific windows. Understanding how those windows work is the difference between a claim and a missed opportunity.
What an exclusion window is
When an exclusion is granted, it covers a product for a defined period, with a start date and an end date. Entries within that window are eligible for relief. Entries outside it are not. The window, not just the product, determines eligibility.
Why timing is everything
Two importers of the identical product can have different outcomes based purely on when they imported. One whose entries fall inside the window has recoverable duty. One whose entries fall outside it does not. That is why a recovery review looks at entry dates as carefully as it looks at products.
The retroactive angle
Exclusions sometimes apply retroactively, meaning duty already paid on qualifying entries during the window can be reclaimed. This is exactly the situation where importers discover they overpaid: the exclusion existed, their entries qualified, but they never filed to claim it.
Checking your windows
Matching your entries to the right exclusion windows is detailed work, and it is what specialists do in a recovery review. If you imported China-origin goods during periods when exclusions were active, there may be duty to reclaim. A free eligibility check is the place to start.