To send a dispute letter to the credit bureaus, mail it by Certified Mail with Return Receipt to the correct bureau address, and include your identifying information, a clear explanation of each error you’re challenging, and photocopies of documents that back you up. The return receipt matters because federal law gives a credit bureau 30 days from the date it receives your dispute to investigate, and the signed green card fixes that start date in writing.
What to Put in the Letter
Start with the information the bureau needs to pull the right file: your full legal name, date of birth, Social Security number, and current mailing address. If you’ve moved recently, add your previous address too, because the file may still be linked to the older one. Errors or gaps in these identifiers are the fastest way to have your letter stall in a processing queue.
Then, for each item you’re disputing, name the creditor and account number and explain in plain language what’s wrong. Something like “This account was paid in full on March 15, 2025, but still shows as delinquent” is far more useful than a general complaint about inaccuracy. Specific, factual explanations reduce the chance the bureau labels your dispute frivolous and refuses to investigate. If a bureau decides your dispute lacks enough detail, it can reject the request and simply send you a notice explaining why within five business days.1Federal Trade Commission. Fair Credit Reporting Act
Attach photocopies of documents that support your case. A government-issued ID such as a driver’s license and a utility bill or bank statement showing your current address help confirm identity and residency.2AnnualCreditReport.com. Filing a Dispute If you have proof that the reported information is wrong, such as a payoff letter or a court document showing a discharged debt, include copies of those too. Never send originals. Experian explicitly warns that it cannot return documents from mailed disputes, and the other bureaus operate similarly.3Experian. Instructions for Disputing by Mail
One practical tip before sealing the envelope: use paper clips instead of staples. Bureau staff often scan incoming documents, and staples slow that down. Then photocopy everything you’re sending, including the letter itself, and keep those copies with your certified mail receipt as your dispute file.
Where to Mail Your Dispute
Each bureau has a dedicated mailing address for written disputes. A generic corporate address can delay processing by weeks. The current addresses listed by each bureau are:
- Equifax Information Services, LLC, P.O. Box 740256, Atlanta, GA 30374-02564Equifax. How Do I Correct or Dispute Inaccuracies on My Credit Reports by Mail
- TransUnion Consumer Solutions, P.O. Box 2000, Chester, PA 19016-20005TransUnion. Dispute Your Credit Report by Mail or Phone
- Experian, P.O. Box 4500, Allen, TX 750133Experian. Instructions for Disputing by Mail
If the same error appears on more than one report, send a separate letter to each bureau. The bureaus do not share dispute filings with each other, so disputing with Equifax alone won’t fix the same mistake on your TransUnion or Experian report.
How to Send It, and What It Costs
At the post office, ask for Certified Mail with a Return Receipt (PS Form 3811). The certified tracking number proves your letter entered the postal system on a specific date and lets you monitor its journey. The return receipt is the green card that comes back signed by someone at the bureau’s mailroom, confirming delivery. That signed card is your best evidence if a bureau ever claims it didn’t receive your dispute.
As of January 2026, the postage adds up like this:
- First-Class postage for a one-ounce letter: $0.786USPS. 2026 Postage Price Change
- Certified Mail fee: $5.307Postal Explorer. USPS Notice 123 – January 2026 Price Change
- Return Receipt (hard copy): $4.407Postal Explorer. USPS Notice 123 – January 2026 Price Change
That’s about $10.48 per letter, or roughly $31.44 to send to all three bureaus. If the envelope runs heavier than one ounce, postage rises but the certified and return receipt fees stay the same.
What Happens After the Bureau Receives It
The Fair Credit Reporting Act gives a bureau 30 days from the date it receives your dispute to complete its investigation.8Office of the Law Revision Counsel. 15 USC 1681i – Procedure in Case of Disputed Accuracy This is where the return receipt earns its cost: if the green card shows the bureau signed for your letter on June 1, the 30-day clock started on June 1.
The window can stretch to 45 days, but only if you send additional information relevant to the dispute during the original 30-day period. The extension doesn’t apply if the bureau has already found the information inaccurate or unverifiable within the first 30 days.1Federal Trade Commission. Fair Credit Reporting Act The practical takeaway: gather your evidence before sending the first letter rather than trickling documents in afterward, since each new submission could add time.
Once the investigation is complete, the bureau has five business days to send you a written notice of the results, along with an updated copy of your credit report reflecting any changes.8Office of the Law Revision Counsel. 15 USC 1681i – Procedure in Case of Disputed Accuracy Compare the updated report against your original dispute letter carefully. Bureaus sometimes correct one item and overlook another in the same letter.
If the Bureau Sides Against You
If the investigation doesn’t go your way, you can add a brief statement to your file explaining your side of the dispute. The bureau can limit this statement to 100 words, so keep it tight.1Federal Trade Commission. Fair Credit Reporting Act The statement won’t move your credit score, but a human reviewer, such as a mortgage underwriter, will see it.
You can also re-dispute with new evidence. If you’ve since obtained a payoff letter, a court filing, or any documentation you didn’t have the first time, send a fresh certified letter with that new material. A second dispute repeating the same argument with no new information is likely to be dismissed as frivolous.
When to Go Beyond the Bureau
Filing a letter is the front door, not the only door. If a bureau ignores your dispute, mishandles the investigation, or keeps reporting information it couldn’t verify, you have options.
A complaint with the Consumer Financial Protection Bureau is free, filed online at consumerfinance.gov/complaint or by phone at (855) 411-2372. The CFPB forwards the complaint to the company, which generally responds within 15 days, and you’ll have 60 days to review that response and provide feedback.9Consumer Financial Protection Bureau. Submit a Complaint Companies tend to take a CFPB complaint more seriously than a second letter, because a regulator is now watching.
For more serious violations, the Fair Credit Reporting Act allows you to sue. Willful violations carry statutory damages between $100 and $1,000 per violation, plus possible punitive damages and attorney’s fees; negligent violations allow recovery of actual damages and attorney’s fees.10Office of the Law Revision Counsel. 15 U.S. Code 1681n – Civil Liability for Willful Noncompliance Many consumer attorneys who handle FCRA cases offer free consultations and work on contingency.