Dispute It Right: The 30-Day Clock Starts When You Mail, how to dispute a credit report

Byline: Consumer Credit Educator, Fix My Credit — Published: 2026-11-07 — Last reviewed: 2026-11-07

You open your credit report and there it is. A bill you paid is marked late. A card you never had is on your list. A balance is wrong by hundreds of dollars. Your stomach drops. Then an ad tells you to pay a firm to fix it. Stop right there. You have a legal right to dispute a credit report error for free. A dispute is a formal note that says, "This fact is wrong. Please check it." The law gives the bureau a clock to check it. But the clock only helps you if you start it the right way, with the right proof, sent the right way.

Where do you get your reports for free?

Go to AnnualCreditReport.com. That is the site set up so you can get your reports from the three big bureaus.

A bureau is a company that collects credit facts about you and builds your credit report. The three big bureaus are Equifax, Experian, and TransUnion. Each one can hold a report that is a bit different from the others. A mistake can show on one report and not on the next. That is why you check all three.

Go step by step:

1. Go to AnnualCreditReport.com.
2. Ask for all three reports. Save each one as a file or print it.
3. Read each report slow. Do not rush this part.
4. Keep them in three files, one for each bureau.

What counts as a mistake you can dispute?

Not every bad mark is a mistake. A dispute fixes errors. That word matters.

Here are errors you can dispute:

• An account that is not yours at all.
• A payment marked late when you paid on time.
• A wrong date, like a late mark in a month you can prove you paid.
• A wrong balance, like the report says you owe $900 and your bill says $90.
• An account shown twice, as if it were two debts.
• A debt that was paid but is still shown as not paid.
• A name or address that belongs to a different person mixed into your file.

Here is what a dispute can not do. A true, correct bad mark can not be removed just because you dispute it. If you did pay late, and the report says so, and the dates are right, the mark is correct. The law lets bureaus keep correct facts. That is an honest limit. No letter, no firm, and no paid service can change that rule.

Why do you dispute with both the bureau and the business?

Facts on your report come from somewhere. Most come from a business you deal with, like a bank or a card company. That business is called a furnisher. Furnisher just means the one who furnishes, or supplies, the facts.

You can dispute with the bureau that shows the error. You can also dispute with the business that supplied the wrong fact. The U.S. Federal Trade Commission, called the FTC for short, and the Consumer Financial Protection Bureau, called the CFPB for short, both point you to this two-part path. The FTC is the federal agency that guards buyers from unfair acts. The CFPB is the federal agency that guards people in money matters.

Why both? If you fix only the bureau's copy, the business can send the same wrong fact again, and the error can come back. If you tell both, you fix the report and the source.

Do it in this order:

1. Write to each bureau that shows the error.
2. Write to the business that supplied the fact.
3. Keep copies of both letters in the same folder.

You do not need to send a dispute to a bureau that does not show the error. If Equifax and Experian show it wrong but TransUnion shows it right, your dispute goes to Equifax and Experian only.

What must your letter say?

Keep the letter short and clear. A worker with a tall stack of mail must find your point fast.

Your letter must have these parts:

• Your full name.
• Your full address.
• Each mistake, named one by one.
• For each mistake, why it is wrong in one or two plain sentences.
• What you want done, like "please remove this account" or "please fix the date."
• A list of the proof you sent with the letter.

Here is a worked example. Say your report shows a card payment as 30 days late in March. You paid on March 10. Your bank proof shows the money left your account on March 10.

A weak line would say: "My report is wrong. Fix it."

A strong line would say: "The March payment on my card that ends in 4412 is shown as 30 days late. That is wrong. I paid on March 10. See Proof 1, my bank page, with the March 10 payment marked."

The strong line names the item, the month, and the proof. The worker does not have to guess. Do the same for each mistake. Number them. Make each one stand on its own.

What proof do you send, and what do you never send?

Send copies. Never send your only copies, and never send originals. An original is the one real paper, not a copy of it. If the mail is lost, you still need your proof at home.

Proof can be:

• A bank page that shows a payment date.
• A card bill that shows a different balance or due date.
• A letter from the business that says the account is paid or closed.
• A copy of your report with the mistakes circled.

That last one helps a lot. Print the page with the error. Draw a circle around the wrong fact. Write a short note near it, like "This date is wrong. See Proof 1." The worker sees the error fast and sees which proof goes with it.

Keep your copies in a folder: your letter, each proof page, the circled report page, and later, your mail receipts. One folder per dispute.

How do you send it so you can prove it?

Send your letter by certified mail with a return receipt asked for.

Certified mail is a post office service that gives you a receipt that shows you mailed a letter to a set address on a set date. A return receipt is a card the bureau signs when the letter gets there. That card is mailed back to you. It proves the letter arrived.

Why does this matter? The 30-day clock starts when the bureau gets your dispute. If you have no proof of that date, you can not prove when the clock started. The signed card gives you that date. Keep it in your folder.

You can dispute on the web too. That path can be fast to send. But mail gives you a clear paper trail you can show later. A paper trail means papers that show each step and each date. If you use the web form, save a copy of what you sent and any code or page that proves you sent it, with the date.

Do not pay a company to dispute what you can do free. Your right to dispute is free by law. No company can promise to remove true, correct facts. If a firm asks for money up front to erase true marks, walk away. That pitch is the warning sign.

When does the 30-day clock start, and when can it be 45 days?

The clock starts when the bureau gets your dispute, not when you drop it in the mail box. That is why the return receipt matters so much.

In most cases, the bureau has 30 days to look into your claim. To look into it means the bureau must check the fact with the business that supplied it and review your proof.

In some cases, the time can go up to 45 days. The FTC states this plain version: 30 days in most cases, but up to 45 days in some cases. For example, if you send more proof after your first letter, the clock can grow. Or if you dispute after getting a free annual report, in some cases the longer time can apply.

Do the math out loud on your folder. "Got it: June 2. Day 30: July 2. Day 45: July 17." June 2 plus 30 days is July 2. June 2 plus 45 days is July 17. Those are your watch dates. If no result comes by the last date that fits your case, you have a clear fact to point to in your next step.

While you wait, do not send the same letter again and again. One clear dispute starts the clock.

What must the bureau send you at the end?

When the check is done, the bureau must send you the results in writing. Writing means a letter or a clear written notice, not just a phone call.

If the check finds the fact was wrong, the bureau must fix or remove it. If a fact changes, the bureau must give you a free copy of your updated report. Updated means the new, fixed version. That free copy does not count as your free annual report. You do not lose your yearly free report by getting this one.

Read the result slow, line by line:

1. What did the bureau say about each mistake? Fixed, removed, or left as is?
2. Does the new report page match what the letter said?
3. Did one bureau fix it while a different bureau still shows it wrong? If so, that second bureau still needs its own dispute.

If the bureau says the item is verified, that means the business told the bureau the fact is right. It does not always mean you agree. Check your proof again. Did your bank page show the date the money was sent, but not the date it was posted? Posted is when the business credits the payment to your account. Those dates can differ. That one detail can change a case.

If new proof turns up, you can dispute again with that new proof. A second dispute with no new fact is weak. A second dispute with a new, clear proof page is worth a new check.

What if the bureau will not change a fact you say is wrong?

You can ask for a statement of dispute to be added to your file. A statement of dispute is a short note in your own words that says you do not agree with the fact. When a lender reads your report, they can see your note next to that item.

Keep the note short and calm. For example: "I paid this bill on March 10. My bank page shows the payment on that date. I do not agree that this payment was 30 days late." A statement does not remove the item. It tells your side. That is less than a fix, but it is more than silence.

If the account is not yours and you fear someone used your name, act fast and get more help. That can be identity theft. Identity theft is when someone uses your name or number to open credit in your name. A nonprofit credit counselor or a consumer law lawyer can help with hard cases. Bring your folder. Good help starts from proof, not from memory.

What are the most common mistakes that hurt a dispute?

Mistake 1: The letter is vague. "My score is low, please help" names no item. Name the item, the date, and the wrong part.

Mistake 2: Proof is not sent. A claim with no proof is just your word. Send the page that shows the fact.

Mistake 3: Originals are sent and lost. Send copies only. Keep the real pages at home.

Mistake 4: Only one bureau is told. Each bureau holds its own file. Tell each bureau that shows the error.

Mistake 5: No proof of mailing is kept. No receipt means no clear start date for the clock. Use certified mail with a return receipt and keep both.

Mistake 6: True facts are disputed as if they were errors. That wastes your time. Save disputes for facts you can show are wrong.

Your free tool for this step: the Dispute Letter Generator

A clear letter is half the work. The Dispute Letter Generator on Fix My Credit helps you build that letter step by step. You answer a guided quiz about the error, and you see a letter preview for free. The guided quiz and the letter preview are free. Downloading the finished letter costs $0.99 per letter. Both halves of that price are stated here so you know the full deal before you start. Use the tool to get your words in the right order. Then print your letter, add copies of your proof, circle the error on your report page, and mail it by certified mail with a return receipt so your 30-day clock has a date you can prove.

The bottom line

Get all three reports free at AnnualCreditReport.com. Name each error. Say why it is wrong. Send copies of proof, never originals, to each bureau that shows the error and to the business that supplied it. Mail it so you can prove the date it arrived. Count 30 days, and up to 45 days in some cases. Read the written result, check the free updated report if a fact changed, and add a statement of dispute if you still do not agree. Disputes fix errors. Used right, that is power enough.