The letter that makes a collector prove it

FREE · NO ACCOUNT · NOTHING LEAVES YOUR BROWSER · FDCPA 15 U.S.C. §1692g

When a debt collector contacts you, federal law hands you one immediate, powerful move: demand validation in writing. Dispute within 30 days of their written notice and the collector must stop collecting until they mail you proof (15 U.S.C. §1692g). Fill in the blanks below — the letter updates as you type.

Your full name

Your mailing address

Collection company name

Their mailing address (from their notice)

Account / reference number (optional)

Date on their notice (optional)

Require all further contact in writingTell them not to contact you at work

[Your name]
[Your mailing address]

August 29, 2026

[Collection company name]

Re: The account referenced in your notice

To whom it may concern:

I am responding to your communication about the above account. I dispute this debt and request validation under the Fair Debt Collection Practices Act, 15 U.S.C. § 1692g. Please provide:

  1. The amount of the alleged debt and an itemization of how it was calculated;
  2. The name and address of the original creditor;
  3. Documentation showing you own this debt or are authorized to collect it;
  4. The date of the last payment or activity on the account.

If this dispute is made within thirty days of your initial written notice, 15 U.S.C. § 1692g(b) requires that you cease all collection activity on this account until you have mailed me the requested validation.

I additionally request that all further communication about this account be in writing, and that you do not contact me at my place of employment (15 U.S.C. § 1692c(a)(3)).

This letter is not an acknowledgment that the debt is valid or that it is mine.

Sincerely,

[Your name]

Nothing you type here leaves your browser. Mail the letter with tracking and keep a copy. Legal information, not legal advice.

After you mail it

Save the tracking receipt with your copy of the letter.
If they validate: check the itemization against your records, and check the statute of limitations in your state before paying anything.
If they keep collecting without validating: that’s an FDCPA violation — file with the CFPB and your state attorney general.
If the debt is medical: request an itemized bill and check charity care — billing errors and unclaimed assistance are the two biggest sources of reductions.

Common questions

What is a debt validation letter?

A written request under the federal Fair Debt Collection Practices Act (15 U.S.C. §1692g) requiring a debt collector to document the debt: the amount and its itemization, the original creditor, and the collector’s authority to collect. If you dispute in writing within 30 days of the collector’s validation notice, collection must stop until they mail verification.

Is this letter really free? What’s the catch?

Free, no account, no email required, and the text never leaves your browser. BillFighter earns its keep on the harder fights — analyzing bills for errors and generating full dispute campaigns — which you can try after your letter is out the door.

When do I have to send it?

The strongest window is within 30 days of the collector’s written validation notice — inside that window, a written dispute legally pauses collection until they verify (15 U.S.C. §1692g(b)). You can still request validation after 30 days — many collectors respond anyway, and the letter creates a written record — but the law does not require a response to a late request, and the automatic collection pause only attaches inside the 30-day window.

How should I send it?

By mail, with tracking (certified mail with return receipt is the classic). Keep a copy of the letter and the receipt. A mailed, tracked letter creates the paper trail that wins disputes — and lawsuits.

Does requesting validation hurt my credit?

No. Requesting validation is a legal right and is not reported to credit bureaus. It also does not acknowledge the debt — this letter explicitly says it is not an acknowledgment.

What if the collector never responds?

There is no legal deadline for a collector to respond to a validation request — but until they mail verification of a timely written dispute, they cannot lawfully continue collecting. If they keep collecting without validating, that is an FDCPA violation worth reporting to the CFPB at consumerfinance.gov/complaint.