Demand Letter (Payment Demand)
Formal demand for payment of an overdue debt — final step before small-claims court or collections.
Live preview
May 4, 2026
VIA CERTIFIED MAIL — RETURN RECEIPT REQUESTED
John Smith
456 Oak Ave, Austin, TX 78701
Re: Final Demand for Payment — Invoice #2026-0087
Dear John:
This letter is a final demand for payment of the amount $2,500.00 owed to Acme Corp. ("Creditor") and now seriously past due.
DETAILS OF DEBT
Reference: Invoice #2026-0087
Amount: $2,500.00
Original due date: _______________
For services / goods: Web design services rendered between January 15 and February 28, 2026, per signed Statement of Work dated January 8, 2026.
In addition to the principal amount above, late fees continue to accrue at 1.5% per month (or the maximum allowed by law) until paid in full. As of the date of this letter, late fees through May 4, 2026 bring the total to approximately $2,625.00.
Despite previous communications, this amount remains unpaid. Acme Corp. has been patient, but is now compelled to take the following position:
DEMAND
You must remit payment in full within 10 days of receipt of this letter (the "Final Deadline"). Payment may be made by:
- Check payable to Acme Corp., mailed to the address above; or
- Wire transfer (bank details provided on request); or
- Any other method previously agreed upon.
CONSEQUENCES OF NON-PAYMENT
If payment is not received by the Final Deadline, Acme Corp. will, without further notice:
1. File a lawsuit in the appropriate court (small-claims if amount is under the jurisdictional limit, otherwise civil court);
2. Seek the full principal, accrued interest, court costs, and (where contractually or statutorily allowed) attorneys' fees;
3. Refer the debt to a collections agency, which may report it to credit bureaus;
4. Notify any applicable regulatory or licensing authorities of the unpaid debt.
This letter does not waive any right or remedy. Acme Corp. expressly reserves all rights at law and in equity.
If you dispute the debt or wish to propose a payment arrangement, you must contact me in writing before the Final Deadline. Verbal discussions are not binding.
Sincerely,
_____________________________
Acme Corp.
123 Main St, San Francisco, CA 94103
cc: File / Counsel
About this template
A demand letter is the bridge between informal collection efforts and litigation. About 60–70% of small-business debts are paid after a properly written demand letter, simply because it signals real consequences are coming. Three elements separate an effective demand from one that gets ignored: (1) specific amounts and dates, not "the money you owe me;" (2) a hard deadline (10–14 days), not "as soon as possible;" (3) named consequences (small-claims court, credit reporting, attorneys' fees), not vague threats. Send by certified mail with return receipt — the green card showing they signed for it is the proof you need in court that they had notice. Don't threaten what you won't do. If the deadline passes and you don't file, your future demands carry no weight. Small-claims court limits range from $5,000 (Kentucky) to $25,000 (Delaware/Tennessee); if the debt exceeds your state's limit, you'll need civil court and likely a lawyer.
When to use it
- Invoice 30+ days past due despite reminders.
- Before filing in small-claims court (some states require it).
- When informal negotiation has failed.
- When you need the debtor to take you seriously enough to negotiate.
What to include
- Exact amount owed, with interest/late fees clearly itemized.
- Reference to the invoice or contract that created the debt.
- Hard deadline (10–14 days from receipt).
- Specific consequences (lawsuit, collections, credit report).
- Reservation of rights — don't waive the right to sue by accepting partial payment.
- Send by certified mail with return receipt.