A demand letter for payment is a formal, final request to pay an overdue invoice by a set date, usually 10 to 14 days away, before you file in small claims court. It names the invoice and amount, lists the reminders you already sent, says how to pay, and states calmly what happens if the deadline passes. Fill in the form below to get one as a PDF.
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Never get this far again
Babara sends polite reminders that get firmer on their own, gives clients a one-click pay page, and stops the moment they pay.
Try Babara freeShort and factual beats long and angry. A judge, or your client’s accountant, should understand it in one read.
Invoice number, what it was for, the amount still owed, and the date it was due.
The dates you already asked. It shows you were patient, which matters if a judge reads it.
A real date, usually 10 to 14 days out. “As soon as possible” is not a deadline.
A payment link, or where to send a check or transfer. Make paying easier than ignoring you.
Only what you will really do: usually filing in small claims court for the amount plus court costs.
Invite a written reply about a payment plan before the deadline. Many late payers are stuck, not unwilling.
Not first. A demand letter works because it comes after friendlier reminders went unanswered. Still at the start? Use our overdue invoice email templates first, or follow the full unpaid invoice plan, day 1 to day 60.
A short email: the invoice might just have been missed.
Name the invoice, the amount and a date. Ask if anything is in the way.
A firm date, about 7 days out, and what you will do if it passes.
The formal letter on this page, by email and certified mail.
File in your county, bringing the invoice, the reminders and the letter.
Prefer to write it yourself? Copy one, replace everything in [brackets], or let the generator above fill it in for you.
Subject: Final demand for payment: invoice #[number]
Dear [Name], Invoice #[number] for [amount], due on [due date], is still unpaid. I wrote about it on [date 1] and [date 2]. Attached is a final demand letter. Please pay [amount] in full by [deadline]: [payment link]. If I haven’t received payment or a written reply by then, I will file a claim in small claims court without further notice. If a payment plan would help, reply before that date and we can agree one. Sincerely, [You]
Subject: Invoice #[number]: payment needed by [deadline]
Dear [Name], I value working with [company], which is why I want to settle this before it goes any further. Invoice #[number] for [amount] was due on [due date] and remains unpaid after my reminders of [dates]. I have paused new work on the account until it is paid. Please pay [amount] by [deadline] here: [payment link]. If something is holding up payment, a missing PO number or a question about the work, reply and I will help sort it out the same day. If I don’t hear from you by [deadline], I will file a claim in small claims court for the amount plus court costs. Sincerely, [You]
Subject: Final demand: [amount] owed for [work], due [due date]
Dear [Name], On [date] I completed [work] for you, and sent invoice #[number] for [amount], due on [due date]. I have since reminded you on [dates], and the full amount is still unpaid. Please pay [amount] by [deadline, about 30 days away] using [payment method]. If you cannot pay it all at once, write to me before that date and I will agree a monthly plan with you. If I receive neither payment nor a reply by [deadline], I will file a claim in [county] small claims court for the amount owed, court costs and any interest the law allows. Sincerely, [You]
So it arrives today. Attach the PDF and paste the letter in the email body too.
USPS Certified Mail with Return Receipt shows who signed for it and when.
The signed letter, the mailing receipt and every reminder. That’s your court file.
Most letters end one of three ways. Whichever it is, keep writing things down: dates, amounts and what was said.
Check the full amount arrived, then confirm it in a short email and close the invoice. Keep the file anyway, in case a later invoice goes the same way.
Read what they actually object to and answer in writing. If part of the work is in question, ask them to pay the rest now. A payment plan with fixed dates often beats court.
File in small claims court, up to your state’s limit in the table below. Bring the invoice, your reminders, the letter and the mailing receipt.
You can file a complaint with the Department of Consumer and Worker Protection. The client must respond within 20 days, and if paid late you can collect double the amount owed plus attorneys’ fees and costs. source
For payment violations the law allows double damages plus attorneys’ fees. It covers freelancers working alone, incorporated or not, on work worth $800 or more. source
Trading through a corporation or partnership? It can’t use small claims; it files a commercial claim instead, same $10,000 limit, up to five a month. source
Work worth $500 or more over 120 days must be paid by the contract due date, or within 30 days of finishing. Small claims appearance fees ended on October 1, 2025. source
The law can be enforced by the freelancer or a public prosecutor. In small claims you can’t file more than two cases over $2,500 in one calendar year. source
Checked 25 October 2026. Chasing a client in the UK or Ireland instead? The steps and courts are different; see what to do about an unpaid invoice.
Small claims courts are made for people without lawyers. Each state sets its own limit; here are five, checked against each court’s own rules.
Other states: search “[your state] small claims limit” on your state court’s website. Want to add interest? Each state sets its own legal rate; see late payment interest by US state.
If your contract has no due date, these laws set one. Quoting the law in your letter can speed things up.
Work worth $800 or more (one contract, or all contracts with the same client over 120 days) needs a written contract. With no due date in it, payment is due 30 days after the work is done. In force since August 28, 2024.
Professional services worth $250 or more over 120 days need a written contract. With no due date, payment is due 30 days after the work is done. For contracts made or renewed from January 1, 2025.
Work worth $500 or more over 120 days is covered. With no due date in the contract, payment is due within 30 days of finishing. For contracts that took effect after July 1, 2024.
Before you start
Invoice and reminder templates for designers, photographers, developers, copywriters and content writers, videographers and video producers, contractors and consultants.
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Babara sends polite reminders that get firmer on their own, and stops the moment your client pays.
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