How to dispute a collection that isn't yours
Last updated: Sources checked: September 2026
If a collection on your report is not yours, you can dispute it with each bureau that shows it, and with the collector. Start by making sure it really is not yours. A dispute is the right tool for a debt that does not belong to you. It is not the tool for a debt that does, even if you wish it would go away.
First, check it before you dispute
Look at the collection’s details: the original creditor, the amount, the dates. Then ask:
- Did I ever have an account with that creditor?
- Could it be under a former name, an old address, or a joint account?
- Could it belong to a relative with a similar name? That points to a mixed credit file.
- Could someone have opened it without my knowledge? That points to identity theft.
If it is your debt but the amount or dates are wrong, that is an inaccuracy dispute, not a “not mine” dispute.
Ask the collector for validation
A debt collector must send you a notice that states who the debt is owed to, the amount, and how to dispute it. The notice includes a deadline to dispute. If you dispute in writing by that date, the collector generally must stop collecting until it sends verification. The details come from the Fair Debt Collection Practices Act and Regulation F.
Keep the notice. The dates on it matter.
Dispute with each bureau
- Dispute with each bureau that lists the collection.
- Say the account does not belong to you, and name the collector and the amount.
- Attach proof: a copy of your ID, proof of your address, and anything that shows the account is not yours.
- Save your confirmation or return receipt. The bureau’s 30 days run from its receipt date.
See how to dispute a credit report error for the full steps.
Dispute with the collector too
You can also dispute directly with the collector, in writing. See how to dispute directly with the creditor or collector. Say the debt is not yours, ask what documents they have that link it to you, and keep proof of delivery.
What not to do
- Do not ignore a lawsuit. A court summons has its own short deadline, and missing it can lead to a judgment against you.
- Do not say a debt is not yours if it is. That is a false statement.
- Do not send money to a collector before you have confirmed the debt is yours and that you owe the amount claimed.
Old debts
A debt can be too old to sue on and still be reported. The time limit for a lawsuit is a state law question, and it is separate from how long the debt can be reported. See how long negative items stay.
Do this today
Find the validation notice or the collection letter and write down the date and the dispute deadline on it.