How long must you keep business records after closing?

Closing a business does not end the duty to keep its records. Tax authorities can still audit the final years, former employees can still bring claims and lawsuits can still arrive. The periods below are set by the IRS, the US Department of Labor, the Companies Act 2006 and HMRC.

Retention also matters when you license data. A buyer may want records deleted from your systems after transfer, while the law may require you to keep them. This guide covers the US rules first and the UK rules second. It summarizes official guidance, not how it applies to your business, so check with your accountant or lawyer before deleting anything.

How long must a US business keep records after closing?

A closed US business must keep tax records for at least 3 years after the final return in most cases, and longer in the situations the IRS lists. The IRS guide How long should I keep records? sets out the periods, and they run from the filing of each return, not from the date the business closed.

The IRS page on closing a business lists the final filings: the final return box on Form 1120, 1120-S or 1065, Form 966 when a corporation adopts a resolution or plan to dissolve, final Forms 941 or 944 and 940, and Forms W-2 for employees. The retention clock for each period starts with those final returns. The IRS recordkeeping page adds the general rule behind every period: "You must keep your records as long as needed to prove the income or deductions on a tax return." Records that support depreciation or the cost of assets sold in the closing year often need to be kept longest.

The Department of Labor rule in 29 CFR 516.5 says "Each employer shall preserve for at least 3 years" its payroll records and certain related documents. State law can set longer periods for payroll, employment and industry records, so check the states where you had staff.

Does state corporate law affect how long to keep records?

State corporate law affects how long a dissolved company can be sued, which is a practical reason to keep records. Section 278 of the Delaware General Corporation Law continues a dissolved corporation for 3 years, or longer if the Court of Chancery directs, for "prosecuting and defending suits" among other purposes.

Records that would defend a claim during that period, such as contracts, payment records and correspondence, are worth keeping at least that long. Litigation adds a separate duty. Under Rule 37(e) of the Federal Rules of Civil Procedure, a court can act where electronically stored information "that should have been preserved in the anticipation or conduct of litigation is lost" because a party did not take reasonable steps to preserve it.

How long must a UK company keep records after closing?

A closed UK company should keep its tax records for at least 6 years from the end of its last financial year, and gov.uk tells directors of a struck-off company to keep business documents for 7 years after strike-off. The Companies Act 2006 sets shorter minimums for accounting records, but tax rules usually decide the period in practice.

The gov.uk guide to running a limited company says records must be kept longer if they cover more than one accounting period, relate to an asset expected to last more than 6 years, or relate to a late return or an open HMRC compliance check. Under section 388(5), the Companies Act periods are subject to insolvency rules where a company is wound up.

The strike-off guidance also says to keep copies of the employers' liability insurance policy and schedule if the company employed people. For companies in liquidation or administration, see our guide to selling company data in UK administration or liquidation.

Licensing records to an AI buyer does not change how long you must keep them. A license gives the buyer a copy and the right to use it, but the tax authority still expects you to produce the original records on request.

Buyers sometimes ask sellers to delete working copies after transfer, for example to stop the same data reaching a competitor. That clause should carve out records the seller must keep by law and copies held for pending or expected litigation. Our licensing agreement checklist covers deletion and retention terms in more detail.

When should you delete personal data after closing?

You should delete personal data once the retention period that justified keeping it has ended, unless another legal reason applies. In the UK, the storage limitation principle in Article 5(1)(e) of the UK GDPR says personal data must be "kept in a form which permits identification of data subjects for no longer than is necessary" for its purposes.

In the US there is no single federal deletion rule, but state privacy laws and the privacy notices you gave customers apply. A retention duty for tax purposes is not a reason to license personal data. Most sellers exclude it or de-identify it with a documented method, as set out in our de-identification guide.

What should you do with records when closing a business?

When closing a business, sort records into what you must keep, what you can license and what you should delete, before access to your systems lapses.

1. 1

   Export everything first

   Take full read-only exports while admin accounts still work, with a note of when and how each was made.

2. 2

   Tag retention periods

   Mark each record set with its legal retention period and the date it ends, using the IRS and HMRC tables above.

3. 3

   Choose a custodian

   Name the person who will hold retained records after closure and how they can be reached.

4. 4

   Select what to license

   Pick the record sets buyers want and you have the right to license, and exclude payroll, HR and customer personal data.

5. 5

   Set deletion dates

   Put a deletion date in the calendar for each retained set and record when deletion happens.

If your business is closing and you want to know whether its records have value to AI buyers, request a free data valuation. Sellers pay nothing to be assessed, and we do not take custody of your raw data. For ownership questions after closure, read who owns a dissolved company's data.