What records does a law firm have to keep after a client matter closes, and who owns the client file?

When a client matter closes, a law firm does not simply discard the file. Two distinct questions arise: what must be retained, and who actually owns the contents. The answers come from professional responsibility rules, recordkeeping law, and sound information governance practice rather than from any single national statute.

What a firm typically retains

Most jurisdictions impose specific obligations on a narrow set of records, while leaving the rest to firm policy. Commonly retained items include:

• Trust and financial account records. Rules governing client trust (often called IOLTA) accounts usually require retention for a defined period after the representation ends. Firms also keep their own tax and business records consistent with general guidance from tax authorities.
• Conflict-check and engagement information. Enough to identify prior clients and matters so future conflicts can be screened.
• The substantive matter file. Pleadings, contracts, correspondence, and work product are generally kept for a period reflecting malpractice limitation periods, appeal windows, and the matter’s nature.

Because requirements vary by state bar and practice area, firms adopt a written retention schedule and apply legal holds that suspend disposition whenever litigation, audit, or investigation is reasonably anticipated. Disposition should be documented and defensible.

Who owns the client file

As a general principle, the client file belongs to the client, not the firm. When a matter ends or a client changes counsel, the client is ordinarily entitled to the file’s contents. Many jurisdictions follow an “entire file” approach, while others distinguish end-product documents from internal administrative materials such as the firm’s own management notes.

A few practical points usually hold:

• The firm may retain a copy, but the originals or core contents follow the client.
• A firm generally cannot hold a file hostage over an unpaid bill in a way that prejudices the client, though specific rules differ.
• The firm remains responsible for safeguarding confidentiality and secure destruction at the end of the retention period.

The bottom line

Treat the closed file as a governed record: classify it, apply a documented retention period, honor legal holds, and recognize that the client holds the primary ownership interest. Always confirm the exact rules of the relevant state bar and jurisdiction. See more in federal records.