Customs Recordkeeping Requirements: What to Keep and for How Long

How long do you have to keep customs records?

Five years. Under 19 CFR 163.4(a), any record CBP requires you to keep must be kept "for 5 years from the date of entry, if the record relates to an entry, or 5 years from the date of the activity which required creation of the record." A short list of exceptions runs shorter or on a different clock.

Which records count, and what happens if you cannot produce them?

Records include anything made or kept in the ordinary course of business that pertains to an importation, including electronic data. A narrower set, the entry records on the (a)(1)(A) list, must be produced within 30 calendar days of a CBP demand, and failing to produce one carries a penalty per release of merchandise.

TL;DR: Customs recordkeeping requirements come from 19 U.S.C. 1508, which says who must keep records, and 19 U.S.C. 1509, which says how CBP can demand them. CBP implements both in 19 CFR part 163. The default retention period is five years from entry. For a compliance manager at an importer filing 2,000 entries a year, that means roughly 10,000 entries' worth of invoices, entry data, origin support and classification rationale must be retrievable at any moment. The record retention schedules most often overlook is the one few teams think of as a record at all: why the product was classified the way it was.

Last updated: October 2026

How long do you have to keep import records under 19 CFR 163.4?

The general rule is five years, and it runs per record, not per company. Each entry starts its own clock. The statute sets the ceiling: 19 U.S.C. 1508(c)(1) says no retention period CBP prescribes for these records "may exceed 5 years from the date of entry, filing of a reconciliation, or exportation, as appropriate."

The exceptions matter because they catch people on both sides, keeping some records too briefly and over-keeping others.

Record type	Retention period	Source
Any record relating to an entry (default)	5 years from date of entry	19 CFR 163.4(a)
Record created by another customs activity	5 years from date of that activity	19 CFR 163.4(a)
Drawback claim records	Until the third anniversary of payment of the claim (the statute words it as liquidation of the claim)	19 CFR 163.4(b)(1); 19 U.S.C. 1508(c)(2)
Packing lists	60 calendar days from the end of the release or conditional release period	19 CFR 163.4(b)(2)
Informal entry records of a consignee who is not the owner or purchaser and appoints a broker	2 years from the informal entry	19 CFR 163.4(b)(3)
Records for articles admitted free under 19 U.S.C. 1321(a)(2)	2 years from entry	19 CFR 163.4(b)(4)
USMCA preference claim records held by the importer	At least 5 years after the date of importation	19 U.S.C. 1508(b)(5)(C)
Any record with its own period elsewhere in 19 CFR chapter I	That other period controls	19 CFR 163.4(b)(5)

Bottom line: For a compliance manager writing a retention schedule for an importer with continuous entries, five years from each entry date is the safe default for everything except packing lists and drawback files. Drawback records follow their own clock, and the regulation (payment) and statute (liquidation) word it differently, so confirm the trigger date with your broker or counsel. Where drawback recovery is in play, GingerControl identifies and documents the opportunity; your licensed broker or counsel files.

There is a quiet consequence of "five years from the date of entry" that most retention schedules miss.

Quotable insight: A classification record never expires for a product you still import. Each entry restarts the five-year clock under 19 CFR 163.4(a), so the rationale behind an HTS number used on a SKU imported every month since 2019 must stay retrievable until five years after the most recent entry. And because the rationale can change, what you need is the version that stood on each entry date, not the current one.

That is why an IT team's proposal to "purge everything older than five years" is dangerous for classification files. The invoice for a 2020 entry can go. The classification memo that still supports this month's entry cannot.

Which records does CBP require you to keep? The (a)(1)(A) list

There are two layers, and the difference decides what penalty applies.

Layer 1: all records. 19 CFR 163.1(a) defines records broadly as "any information made or normally kept in the ordinary course of business" that pertains to an importation, entry, bonded movement, drawback claim, or payment of duties, fees and taxes. The definition names statements, declarations, correspondence, financial accounting data, technical data, and "computer programs necessary to retrieve information in a usable form."

Layer 2: entry records. The (a)(1)(A) list, published in the Appendix to part 163 because 19 U.S.C. 1509(e) requires CBP to publish it, covers records "required by law or regulation for the entry of merchandise (whether or not Customs required their presentation at the time of entry)." Only this layer carries administrative penalties for non-production.

The Appendix runs to several pages. The items an importer most often holds itself, rather than CBP already holding, include:

(a)(1)(A) list item	Regulation cited in the Appendix	Usually held by
Commercial invoice information (description, quantities, values, unit price, terms, part and model numbers)	19 CFR 141.83, 141.86	Importer and broker
Packing list	19 CFR 141.86(e), 142.3	Importer (60-day retention)
Evidence of right to make entry (bill of lading, air waybill)	19 CFR 141.11 to 141.15	Importer and broker
Power of attorney, where required	19 CFR 141.32	Broker
HTSUS number, rates, entered value and relationship	19 CFR 141.61, 142.6	Filed with CBP, supported by importer
Binding ruling identification number, or a copy of the ruling	19 CFR 177.8	Importer
FTA and preference program records supporting a claim (for example USMCA, the Korea FTA, CAFTA-DR)	19 CFR part 10, part 182	Importer
Agency certificates and declarations for special categories (for example TSCA statements, FDA Form 2877)	19 CFR part 12	Importer

Bottom line: For a trade compliance team claiming FTA preference on more than a handful of SKUs, the preference support files are the (a)(1)(A) records most likely to be missing on demand, because they sit with suppliers rather than in the entry packet. The Appendix itself warns that it "does not replace entry requirements" and that the underlying regulation governs if the two conflict.

Records outside the list are not optional. Paragraph (4) of the Appendix is blunt about them: "While these records are not subject to administrative penalties, they are subject to examination and/or summons by Customs officers. Failure to comply could result in the imposition of significant judicially imposed penalties and denial of import privileges."

Who is subject to the recordkeeping requirement, and does it reach my broker?

19 CFR 163.2(a), tracking 19 U.S.C. 1508(a), names three groups:

1. An owner, importer, consignee, importer of record, entry filer or other person who imports merchandise, files a drawback claim, or transports or stores bonded merchandise, or who knowingly causes any of those.
2. An agent of any of those persons.
3. Any person whose activities require filing a declaration or entry.

Three practical consequences follow.

• Your broker keeping a copy does not discharge you. The importer and its agent are listed separately, and 163.2(d) adds that customs brokers keep their own records under part 111. Nothing in 163.2 transfers the importer's obligation to the broker. If the broker relationship ends, or the broker purges files on its own schedule, the demand still lands on you.
• Domestic buyers can be pulled in. Under 163.2(b), a company buying from an importer in a domestic transaction "knowingly causes" the importation if it controls the terms of the importation, or furnishes technical data, molds, components or other production assistance knowing they will be used to make the imported goods. The regulation's own example: a consumer buying an imported car from a dealer keeps nothing, but "a transit authority that prepared detailed specifications from which imported subway cars or busses were manufactured would be required to maintain records."
• Attorneys, accountants and brokers are "third-party recordkeepers" under 163.1(k) when they are not the importer of record. CBP can reach them through a third-party summons under 163.8, which is a separate procedure from a demand on you.

Exporters are not exempt either. Exporters and producers who complete a USMCA certification of origin keep records under part 182, per 163.2(c)(2).

What happens if you cannot produce a record CBP asks for?

It depends on which layer the record sits in.

For entry records on the (a)(1)(A) list, 19 CFR 163.6(a) says the records "shall be produced within 30 calendar days of receipt of the demand," or sooner if the record bears on admissibility or release. You can ask for more time, but the request must reach CBP before the due date and explain why. If you fail to produce, 19 U.S.C. 1509(g)(2) and 163.6(b) set these caps, per release of merchandise, as written in the statute and regulation:

Cause of the failure	Maximum penalty per release
Negligence in maintaining, storing or retrieving	$10,000 or 40% of appraised value, whichever is less
Willful failure to maintain, store or retrieve	$100,000 or 75% of appraised value, whichever is less
Record supports a column 1 special rate (for example an FTA claim)	In addition: unliquidated entries liquidate at the general rate; entries liquidated within the prior 2 years are reliquidated at the general rate

Bottom line: For an importer with 40 releases of the same product, each appraised at $20,000, a negligent failure to produce the invoice records carries a cap of $8,000 per release (40% of $20,000 is less than $10,000), or $320,000 across the 40 releases. The same failure found willful caps at $15,000 per release, $600,000 in total. These are the statutory ceilings, not typical outcomes, and penalties can be mitigated under 19 U.S.C. 1618.

These dollar caps are not raised for inflation each year. The federal civil penalty inflation adjustment law excludes penalties under the Tariff Act of 1930, which is where section 1509 sits, and DHS has said it does not adjust those CBP penalties for that reason (84 FR 13499, April 5, 2019).

There are four ways out under 163.6(b)(3): the loss was an act of God or natural disaster, CBP accepts other evidence that you substantially complied, CBP already received and kept the record at entry or in an earlier demand, or you are a certified participant in the Recordkeeping Compliance Program under 163.12, generally in compliance, and this is a first, non-willful violation.

For all other records, there is no administrative penalty, but CBP can issue a summons under 163.7. If a court orders compliance and the person is held in contempt, 163.10 lets the Commissioner prohibit that person's importations and withhold delivery of their merchandise for as long as the contempt lasts. For an operating importer, that is a heavier sanction than any fine.

If a records gap surfaces alongside a duty underpayment, the decision moves into prior disclosure under 19 CFR 162.74, which is a different analysis.

Do electronic records and ERP data count?

Yes. The definition of "original" in 19 CFR 163.1(g) includes electronic information used to develop other records and electronic information in a readable format such as a spreadsheet. A record born electronic, such as an EDI invoice or an ERP purchase order, is an original in that form.

The rules tighten when you convert originals into a different format, for example scanning paper invoices and destroying the paper, or migrating data out of a retired ERP. Under 19 CFR 163.5(b), an alternative storage method requires:

1. Written notice to CBP Regulatory Audit in Charlotte at least 30 calendar days before you start, stating the method and that it meets the standards.
2. Written procedures that preserve integrity, readability and security, with a standardized retrieval process.
3. An effective labeling, naming, filing and indexing system.
4. Entry records kept in original format for 120 calendar days from the end of the release period (packing lists excepted). Brokers who are not the importer of record and keep separate electronic records are exempt from this step.
5. Internal testing of the system every year.
6. The ability to make, at your own cost, hard copies CBP asks for.
7. One working copy and one backup copy kept in a secure location for the full retention period.

Changes to the method need another 30 days' written notice under 163.5(b)(3).

The ERP migration point deserves its own warning. Because 163.1(a) counts "computer programs necessary to retrieve information in a usable form" as records, decommissioning the only system that can read five years of entry data can itself create a retrieval failure. Export to a readable format, or keep read access, before the old system goes dark.

How do you keep classification records that survive an audit?

The HTSUS number is on the (a)(1)(A) list. The reasoning behind it is not, but it falls squarely within "information made or normally kept in the ordinary course of business" under 163.1(a), and it is the record you will need to explain a classification during a CF-28 request for information or a Focused Assessment. It is also the clearest evidence that a classification decision was made with care rather than by habit, which is the heart of reasonable care.

A classification record that holds up has five parts:

• The product facts used at the time, including materials, function and the specification version.
• The GRI path, from heading through subheading, with the Section and Chapter Notes applied.
• The rulings consulted, with CROSS numbers, and any binding ruling relied on (which is itself an (a)(1)(A) item under 19 CFR 177.8).
• The date and the decision owner, so you can show what stood on each entry date.
• The alternatives rejected and why, which is what an auditor asks about first.

Free methods work at low volume: a written memo per SKU stored with the entry file. The limit is consistency. When 50 new SKUs arrive in a quarter, memos get shorter, alternatives stop being written down, and the rationale ends up in an inbox that may not survive staff turnover.

GingerControl's HTS Classification Researcher produces that rationale as a by-product of the work rather than as a separate writing task. It follows GRI logic, reads relevant CROSS rulings during the analysis rather than attaching them afterwards, asks clarifying questions at the points where candidate headings diverge, and outputs a reasoning report grounded in Section and Chapter Notes that you can file in the product record. GingerControl is an HTS Classification Researcher. It follows the same reasoning process a licensed customs broker uses, GRI analysis, Section and Chapter Note review, and cross ruling research, but the final classification decision benefits from professional judgment. It produces documentation that supports the classification decision; it does not provide legal advice, replace licensed customs expertise, or decide whether any record satisfies your recordkeeping obligations.

For importers who want to test their own records against a CBP-style demand, the customs duty audit guide covers how to work through past entries systematically.

Where this fits in your daily workflow

Recordkeeping fails quietly. Nothing breaks until a demand arrives, and then the 30-day clock exposes every gap at once. The fix is to treat the classification rationale as part of the entry packet from the start, retained on the same five-year-per-entry clock as the invoice. GingerControl's HTS Classification Researcher writes that rationale as the classification is researched, with the rulings and notes it relied on, so your team holds a contemporaneous record instead of rebuilding one.

References

[REF 1] eCFR, 19 CFR part 163, Recordkeeping (sections 163.0 to 163.13 and the Appendix, Interim (a)(1)(A) List) Data cited: retention periods, definitions, persons required to keep records, 30-day production, penalties, alternative storage standards, Recordkeeping Compliance Program Source: 19 CFR part 163 on eCFR Retrieved: October 8, 2026

[REF 2] U.S. Code, 19 U.S.C. 1508, Recordkeeping (2024 edition, GovInfo) Data cited: persons required to keep records, 5-year ceiling, drawback retention, USMCA retention Source: 19 U.S.C. 1508 on GovInfo Retrieved: October 8, 2026

[REF 3] U.S. Code, 19 U.S.C. 1509, Examination of books and witnesses (2024 edition, GovInfo) Data cited: demand authority, (a)(1)(A) list requirement, penalty caps, special-rate consequence Source: 19 U.S.C. 1509 on GovInfo Retrieved: October 8, 2026

[REF 4] Federal Register, Department of Homeland Security, Civil Monetary Penalty Adjustments for Inflation, 84 FR 13499 (April 5, 2019) Data cited: penalties under the Tariff Act of 1930 are excluded from annual inflation adjustment (footnote 2) Source: 84 FR 13499 Retrieved: October 8, 2026