How Drawback Matches Imports to Exports in a Claim

A complete drawback claim lists each designated import entry line (10-digit HTS number, duties paid, entered value, quantity) and the export or destruction it is matched to (19 CFR 190.51). CBP accepts the claim electronically through ABI as entry type 47. Within the eligibility rules in 19 U.S.C. 1313 and 19 CFR Part 190, including substitution at the 8-digit HTS level and the lesser-of rule, the filer chooses which eligible imports pair with which exports. That choice is the matching problem. See drawback matching.

Direct identification traces specific imported merchandise into the export or destruction. For unused merchandise, that is 19 U.S.C. 1313(j)(1): the imported goods leave unused (or are destroyed) in essentially the same condition. For manufacturing, 1313(a) traces specific imported material into the exported articles, so production records have to follow that material through manufacturing. Direct identification claims are not capped by the lesser-of rule that applies to substitution.

Substitution drawback lets you claim on duty-paid imports when the goods you export or destroy are different but classifiable under the same 8-digit HTS subheading. It covers unused merchandise under 1313(j)(2) and manufacturing under 1313(b). If the 8-digit description begins with "other", the goods must share the same 10-digit statistical reporting number instead, and that description cannot begin with "other" either (1313(j)(5)). Substitution refunds are capped at 99% of the lesser of the duty paid on the import or the duty that would apply to the substituted goods (the lesser-of rule).

Designation is naming the specific import entry lines that support the claim. For each designated line you report the entry and line number, the 10-digit HTSUS number, the duties paid, the entered value, the quantity, and the unit of measure (19 CFR 190.51). The ACE report ES-003 lists this at the line level. Each import line can be claimed once. Once a line is designated on a paid or pending claim, it is no longer available for another pairing.

Every eligible import line can back only one export claim, and substitution claims face the lesser-of rule and different duty rates across entries. First-in-first-out (FIFO) and greedy first-fit take the earliest or first available pairing and move on. That is simple, but it is not trying to maximize recovery. Optimized matching solves across valid pairings to maximize total refund while respecting the five-year window, substitution rules, and 8-digit HTS constraints. The same data can return very different amounts purely because of how the lines were matched. MPF recovery is especially sensitive because the fee is capped per entry; see merchandise processing fee.

No. FIFO is a common default in older drawback systems, not a CBP requirement. Substitution and inventory-accounting rules in 19 U.S.C. 1313 and 19 CFR Part 190 govern which pairings are eligible. Within those rules you are free to choose the matches that recover the most.

DrawbackAI by Stable Software does the matching and claim assembly, including substitution matching at the 8-digit HTS level across the five-year claim window, and solves across valid pairings instead of first-in-first-out. Customs brokers file the claims for their importer clients under their own filer code and power of attorney. Flat software license. No contingency, no percentage of the refund. See DrawbackAI.