A debt collector cannot take a person to court over a debt once the time limit for suing has passed. That is the rule in the Consumer Financial Protection Bureau’s Regulation F, which says a debt collector “must not bring or threaten to bring a legal action against a consumer to collect a time-barred debt.”

The rule is posted on the CFPB’s website as 12 CFR 1006.26, and the page is marked “This version is the current regulation.” It protects people holding old credit card, medical or store debt who get a letter or call from a collection company years after the account went quiet.

What does the CFPB rule actually prohibit?

The text of section 1006.26(b) has two parts. The first bars a debt collector from bringing a lawsuit on a time-barred debt. The second bars the collector from threatening to bring one. A collection letter that warns “we will file suit” on a debt past its limit breaks the rule just as a filed complaint would.

The rule defines the terms it uses. A “time-barred debt” is “a debt for which the applicable statute of limitations has expired,” and a statute of limitations is “the period prescribed by applicable law for bringing a legal action against the consumer to collect a debt.” The word “applicable” matters: the CFPB rule does not set the number of years itself. The time limit comes from the law that governs the debt.

Does this mean the debt is gone?

No. The regulation takes away the collector’s right to sue or threaten to sue. It does not wipe the debt off a person’s record or declare that the balance is no longer owed. The text of the rule says nothing about ending collection calls and letters on a time-barred debt.

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The CFPB’s consumer guidance on being contacted by a collector adds a caution on the other side: ignoring a collector is “unlikely to make the debt collector stop contacting you,” and collectors “may find other ways to contact you.” So a person with an old debt can expect letters to keep coming, even though a lawsuit over that debt is barred.

What should a person with an old collection letter do next?

The question a retiree holding an old collection letter has to settle is whether the debt is actually past its time limit. A letter does not have to say so. That is the point where a person needs the date the account went delinquent, the date of the last payment, and the limitation period that applies where the person lives, and needs to write them down before answering the collector.

The CFPB hosts a hub of debt collection resources, last updated September 25, 2026, with links to its guidance on collector contacts and rights. The full rule text on the CFPB site is the place to point to when a collector’s letter says otherwise.

What if a collector sues anyway?

A lawsuit on a time-barred debt is exactly what the regulation forbids a debt collector from filing. But a summons that arrives in the mail is still a court document, and the CFPB’s guidance is blunt about ignoring one. The bureau says it is “important to take it seriously,” and that not responding to a lawsuit can lead to “a judgment against you,” which could limit a person’s ability to dispute the debt “even if it’s already been paid or you don’t owe it.”

That is the costly mistake in this area. A person who throws out a summons because the debt is old can lose by default, with the court never hearing that the time limit had expired. The regulation gives the argument. The person still has to show up and make it.

Where does the rule stop applying?

The rule has one exception written into the text: it “does not apply to proofs of claim filed in connection with a bankruptcy proceeding.” A debt collector that files a claim in someone else’s bankruptcy case is not barred by this paragraph. The ban is also written for debt collectors as the regulation defines them, so it is a rule about what that kind of company can do, not a statement about every creditor.

The CFPB has not set a nationwide clock. For a debt that is only a few years old, the answer to whether it is time-barred depends on the limitation period in the law that applies to that debt. What the CFPB rule fixes is the consequence once that period has run: no suit and no threat of one.

Got a letter about an old debt?

The expensive mistake with an old debt runs in two directions: ignoring a real summons and losing by default, or answering a collector in a way that muddles the dates. A collector writing about a time-barred debt is counting on the person not knowing which dates matter.

The Bank Account & Debt Protection Kit lays out the debt-validation steps for making a collector prove a debt, and it includes a debt inventory, call log and deadline tracker so every call, letter and date sits in one place. Part 5 of the kit, “Old Debt and the Clock,” is written for exactly this letter.

Get the old-debt validation steps and call log tracker in the debt protection kit →

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This article was produced with AI assistance and edited for accuracy against the sources linked above.