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How do I know if a debt is actually mine?

Updated July 1, 2026United States

Short answer

Don't assume a debt is yours, correct, or still collectible just because a collector says so. You have a right under the federal FDCPA to ask for validation — request it in writing (generally within 30 days of the collector's first notice, per the CFPB) and compare what they send against your own records. Check for mistaken identity, identity theft, a wrong amount, a debt you already paid, or an old 'zombie' debt that may be past your state's statute of limitations. Don't pay or admit the debt is yours until you've verified it, because in some states a payment or promise can restart the clock. Pull your credit reports to cross-check.

Collectors buy old debts in bulk with thin records, and mistakes and mix-ups are common. Before you pay anything, make them prove the debt is real, yours, and correct.

Step by step

  1. Ask for validation in writing

    The FDCPA gives you the right to request that a collector validate the debt. Send the request in writing — generally within 30 days of their first notice, according to the CFPB — and they must generally pause collection until they respond. Don't rely on a phone call; put it in writing and keep a copy.

  2. Don't admit it or pay yet

    Until you've verified the debt, avoid saying 'yes, that's mine' or making even a small payment. In some states, a payment or a promise to pay can restart the statute of limitations on an old debt — check your state before doing either.

  3. Compare it against your own records

    When the collector responds, match the creditor name, account number, amount, and dates against your statements and records. Look for a wrong balance, fees you don't recognize, or an account you don't remember opening.

  4. Rule out mistaken identity and identity theft

    Debts are regularly pursued against the wrong person — a similar name, an old address, or actual identity theft. If it isn't yours, say so in writing and ask for the documents linking it to you. If you suspect fraud, the FTC's identity theft resources explain the next steps.

  5. Pull your credit reports

    Check your credit reports to see whether and how the debt appears. You can get free reports through the federally authorized service at annualcreditreport.com (which the CFPB and FTC point to). Dispute anything inaccurate with the credit bureau as well.

  6. Watch for 'zombie' or time-barred debt

    Old debt past your state's statute of limitations may no longer be enforceable in court, yet collectors still try to collect it. The time limit varies by state and debt type, so check your state's rule rather than assuming — and be careful, since reviving it can reset that clock.

  7. Get it all in writing and keep it

    Keep the validation request, the collector's response, your credit reports, and your notes together and dated. Whether you end up disputing the debt or defending a lawsuit, this record is your foundation.

Plain-English terms

Debt validation
Your FDCPA right to make a collector verify a debt — typically the amount, the creditor, and that they're collecting the right thing from the right person. Request it in writing; the CFPB explains the timing.
Zombie debt
Old debt — often past the statute of limitations or already resolved — that gets bought cheaply and pursued again. It can look new, so validation and your own records matter.
Statute of limitations on debt
The time limit for suing to collect a debt. It varies by state and by the type of debt, and once passed, a debt may not be enforceable in court — but this is state-specific, so check your state.
Re-aging / restarting the clock
In some states, making a payment or acknowledging an old debt can restart its statute of limitations. That's why verifying before you pay or admit anything matters.
Credit report
A record of your credit accounts and history from the credit bureaus. You can get free reports via annualcreditreport.com (pointed to by the CFPB and FTC) and dispute inaccurate entries.

The tool for this

buildmyevidence

This guide tells you what to do. buildmyevidence does it with you — keep your validation request, the collector's response, your credit reports and your own records side by side in one dated case file, so you can see at a glance whether the debt is really yours and correct.

  • Keep your validation request and the collector's reply together
  • Line the claimed debt up against your own dated records
  • Export an organized record if you need to dispute or defend it
See buildmyevidence

Related questions

This is general information to help you keep your own records — not legal advice. Validation rights come from the federal FDCPA, and the statute of limitations on debt varies by state — check the CFPB, the FTC, and your state's rules, and consider legal help before paying or admitting an old debt.