How to Write a Dispute Letter to a Creditor: Deadlines and Next Steps

To write a dispute letter to a creditor, put it in writing, address it to the creditor’s billing inquiries address (not the payment address), and include your name, account number, the specific item you’re challenging with dates and dollar amounts, a plain explanation of why it’s wrong, what you want the creditor to do, and copies of any supporting documents. Send it by certified mail with return receipt requested. If the item is a billing error on a credit card or other revolving account, your letter must reach the creditor within 60 days of the statement that showed the error.

First, Know Which Kind of Dispute You’re Writing

The contents of your letter, where you send it, and your deadline all depend on what you’re actually challenging.

A billing error dispute is for something wrong on a credit card or revolving charge account statement: an unauthorized charge, a double billing, a payment the creditor didn’t credit, a math mistake, or a charge you need documentation for. The Fair Credit Billing Act governs this process, and it only covers open-end credit. It does not apply to installment loans, mortgages, or auto loans.¹ Your letter goes to the creditor’s billing inquiries address printed on your statement, and it must arrive within 60 days of the statement that first showed the error.²

A credit report dispute is for inaccurate information a creditor reported to a credit bureau: an account marked delinquent that you paid on time, a wrong balance, an account that isn’t yours. The Fair Credit Reporting Act governs this, and it applies to any creditor that furnishes information to a bureau. You can write to the creditor directly, to the credit bureau, or both.³

One boundary worth flagging: if your complaint is about the quality of something you bought rather than a billing mistake, the FCBA billing-error process isn’t the right tool. You generally need to try the merchant first, and the purchase usually must have been in your home state or within 100 miles of your billing address.²

What Your Letter Must Include

A dispute letter that triggers your federal protections has to give the creditor enough to identify you, pull the account, and understand exactly what you’re challenging. Include all of the following:

Your full legal name, current mailing address, and phone number.⁴
The account number exactly as it appears on your statement or credit report.
A description of each disputed item, with the transaction date, the dollar amount, and a specific explanation of why it’s wrong.⁵
The outcome you’re asking for: remove a late fee, correct a misapplied payment, delete an inaccurate credit report entry, refund a charge.
Copies (never originals) of receipts, canceled checks, prior statements, merchant emails, or anything else that backs up your version.²

For credit report disputes, also include a copy of the portion of your credit report showing the error, with the disputed items circled or highlighted.⁴

One thing to avoid: don’t write your dispute on a payment stub or coupon. The law allows creditors to disregard notices submitted on payment forms.¹

How to Structure the Letter

You don’t need legal language. Clear and specific beats formal. The FTC’s recommended structure for disputes to creditors works for both types:⁶

Header. Date at the top, your name and address below, then the creditor’s name and mailing address. For billing disputes, use the billing inquiries address on your statement, not the payment address.⁷

Subject line. Something short like “Billing Error Dispute” or “Disputing Information in Credit Report,” followed by your account number.

Opening. State that you’re writing to dispute a specific charge, balance, or reported item, and name the account.

Dispute details. Take each item one at a time. Give the date, the amount, and a plain explanation of what’s wrong. If you’re disputing more than one thing, list them separately so the creditor can address each.

Requested action. Say exactly what you want done: correct the statement, remove the charge, update your credit report, refund a fee.

Enclosures. Reference each attached document by name, like “Enclosed: copy of March 2026 bank statement showing payment cleared on March 5.” This ties your evidence directly to your claim.

Closing. Sign it, print your name, and list the enclosures at the bottom.

Keep the tone factual. You’re not arguing; you’re documenting.

How to Send It, and Why Certified Mail Matters

Send the letter by certified mail with return receipt requested. Certified mail gives you a mailing receipt confirming it was sent, and the return receipt comes back with the delivery date and the signature of whoever accepted it.⁸⁹ That proof of delivery is what you rely on if the creditor later says the letter never arrived.

Keep three things in your own file: the mailing receipt, the returned green card, and a full copy of the letter with every attachment. Mail copies only. Never send originals.²

Many creditors and credit bureaus also accept disputes online. Online is faster, but the paper trail from certified mail is harder to challenge. If you use an online portal, save screenshots of the submission, any confirmation number, and copies of everything you uploaded.¹⁰

The 60-Day Deadline for Billing Errors

Under the FCBA, your written dispute must reach the creditor within 60 days after the creditor sent the first billing statement that showed the error.¹ It’s a hard deadline. Miss it and the creditor has no legal obligation to investigate under the FCBA, and you lose your right to withhold payment on the disputed amount during an investigation.

The clock runs from when the creditor sent the statement, not when you opened it. Travel, missed mail, and unread statements don’t pause it. Review statements when they arrive and act as soon as something looks wrong.

What Happens After You Send the Letter

For a billing error dispute, the creditor has to send you a written acknowledgment within 30 days of receiving your letter, unless it resolves the problem inside that window.⁷ It then has two full billing cycles, but no more than 90 days, to finish the investigation.¹ If it confirms the error, it must correct the account, reverse related finance charges and late fees, and tell you what it did. If it concludes the bill was right, it must explain why in writing and send you supporting documents if you ask.

While the billing investigation is open, you can withhold payment on the disputed amount and any finance charges tied to it, though you still owe any part of the bill that isn’t in dispute.² The creditor can’t take collection action on the disputed amount, and it can’t report the disputed amount to credit bureaus as delinquent while things are pending.¹¹

For a credit report dispute filed with a credit bureau, the bureau must tell the creditor within five business days and generally finish its investigation within 30 days, extendable by 15 more days if you submit new information during the original window.³ If you write to the creditor that furnished the information directly, it has to run its own investigation and, if it finds the information wrong, report the correction to every bureau it sent data to.¹²

If Your Dispute Is Denied

A denial isn’t the end. You still have options.

Add a consumer statement to your credit report. If a credit bureau investigation doesn’t resolve the dispute, you can file a brief statement of your side. The bureau may limit it to 100 words, but it must include the statement, or a summary, in future reports that carry the disputed item.³

Submit a follow-up notice on a billing dispute. If you still disagree with the creditor’s conclusion, send another letter saying the amount remains in dispute. The creditor can now report the amount to bureaus, but it must also report that it’s disputed and tell you which bureaus it contacted.¹¹ Once the matter is resolved, the creditor has to update those same bureaus.

File a complaint with the CFPB. You can submit online at the Consumer Financial Protection Bureau or call (855) 411-2372. The CFPB forwards the complaint to the company, which generally has 15 days to respond and up to 60 days for a final response. You then have 60 days to review the response.¹³

Consider legal action under the FCRA. If a creditor or credit bureau willfully fails to comply, you can sue for statutory damages between $100 and $1,000 per violation, plus any actual damages, punitive damages, and reasonable attorney’s fees.¹⁴

One thing to watch for: a creditor can decline to investigate a dispute it decides is frivolous, such as a resubmission with no new information. If it does, it must tell you within five business days and explain why.¹⁵ You can usually resubmit with additional evidence that wasn’t in the first letter.

If the Charges Came from Identity Theft

Charges from identity theft follow a different path than ordinary billing mistakes. Start at IdentityTheft.gov, the FTC’s portal. It generates an official FTC Identity Theft Report and a recovery plan with pre-filled letters for creditors and credit bureaus.¹⁶ With that report, you can ask credit bureaus to block fraudulent items from your file, and you can place a fraud alert. An initial fraud alert lasts one year and can be renewed; an extended fraud alert lasts seven years.¹⁷

1
Office of the Law Revision Counsel. 15 USC 1666 – Correction of Billing Errors
2
Federal Trade Commission. Using Credit Cards and Disputing Charges
3
Office of the Law Revision Counsel. 15 USC 1681i – Procedure in Case of Disputed Accuracy
4
Consumer Financial Protection Bureau. How Do I Dispute an Error on My Credit Report?
5
Consumer Financial Protection Bureau. Sample Letter – Credit Report Dispute
6
Federal Trade Commission. Sample Letter Disputing Errors on Credit Reports to the Business That Supplied the Information
7
Consumer Financial Protection Bureau. Regulation Z Section 1026.13 – Billing Error Resolution
8
USPS. Certified Mail – The Basics
9
USPS. Return Receipt – The Basics
10
Federal Trade Commission. Disputing Errors on Your Credit Reports
11
Office of the Law Revision Counsel. 15 USC 1666a – Regulation of Credit Reports
12
Office of the Law Revision Counsel. 15 USC 1681s-2 – Responsibilities of Furnishers of Information
13
Consumer Financial Protection Bureau. Learn How the Complaint Process Works
14
Office of the Law Revision Counsel. 15 USC 1681n – Civil Liability for Willful Noncompliance
15
eCFR. 12 CFR 222.43 – Direct Disputes
16
Federal Trade Commission. IdentityTheft.gov
17
Federal Trade Commission. Credit Freezes and Fraud Alerts