Payment Demand Letter: Free Template for Contractors

Free payment demand letter template for contractors, plus a commercial version, a filled-in example and the rules to know before you demand payment.

Sam Frenzley
Sam FrenzleyFounder, AR Workflow
Nov 5, 2026 12 min read

A payment demand letter is the last polite thing you send before you do something about an unpaid invoice. By the time you need one, the friendly reminders, the firm emails and the phone calls have not worked. The demand letter puts the debt, the deadline and your next step in writing, on paper, in a form that holds up if you end up in front of a judge or a lien claim.

This guide gives you a free payment demand letter template you can copy, a version for commercial customers and general contractors, a short email version, a filled-in example, and the rules to know before you send one. If your invoice is only a few weeks late, you may not need a demand letter yet. Start with our past due invoice letter templates and come back here when those have run out.

KEY TAKEAWAYS

What is a payment demand letter?

A payment demand letter, also called a letter of demand or final demand for payment, is a written notice that a specific amount is past due, that you expect it paid by a specific date, and what you will do if it is not. It is more formal than a reminder and less formal than a lawsuit.

A good demand letter does three jobs at once. It gives the customer one last clear chance to pay. It creates a record that you asked in writing, which matters in small claims court and in many contract disputes. And it often gets paid, because seeing the full history laid out with a date tends to move an invoice to the top of the pile.

Demand letter vs past due notice vs notice of intent to lien

DocumentWhat it isWhen it is used
Past due noticeA reminder that an invoice is late, with a payment linkThe first days and weeks after the due date
Payment demand letterA formal final request with a deadline and named next stepAfter reminders and calls have failed
Notice of intent to lienA statutory notice some states require before a mechanics lien is filedOn the schedule your state's lien law sets, which may be earlier than you expect
Attorney demand letterA demand sent by your lawyer on their letterheadLarge balances, disputed work, or when you are ready to file

Your own demand letter is not a lien notice. If your state requires a preliminary notice or a notice of intent to lien, those have their own required wording, delivery methods and deadlines. Check your state's lien statute or ask a construction attorney.

When to send a demand letter for unpaid invoices

Send a demand letter when the invoice is clearly past due, your earlier follow-up is documented, and the customer has stopped responding or keeps missing promised dates. For most contractors that is somewhere between 30 and 60 days past due. Here is a typical path from invoice to demand:

Due + 3Friendly past-due email and text with a payment link
Due + 7Phone call or voicemail. Ask whether anything is holding it up.
Due + 15Firm second notice with a pay-by date and a payment plan offer
Due + 30Call from the owner. Check lien notice deadlines now.
Due + 45Payment demand letter by certified mail and email

Wording for the earlier steps is in our payment reminder email templates for contractors. If the customer has raised a real problem with the work, deal with that first. A demand letter on a disputed invoice usually hardens positions rather than producing a check.

What to include in a payment demand letter

ElementWhy it matters
Your legal business name, address and license numberShould match your contract, your invoices and any later court filing.
The customer's exact legal name and addressFor a business, use the entity name on the contract, not the project manager's name.
Job address and contract referenceTies the debt to an agreement the customer signed.
Invoice numbers, dates, amounts and payments receivedShows the math so the balance cannot be argued.
Your earlier attempts to collectDates of emails, texts, calls and letters. Builds the record.
A specific pay-by dateUsually 10 to 14 days from the letter date. "Immediately" is not a date.
How to payA payment link, ACH details and a mailing address. Make the right action easy.
The next step you will takeSmall claims, a lien, an attorney or a collection agency. Only name what you will actually do and are allowed to do.
Late charges, only if in the contractNever add a fee for the first time in a demand letter.

Payment demand letter template (copy this)

This demand letter template for payment is written for a homeowner or small business customer. Fill in the brackets, delete what does not apply, and print it on your letterhead.

PAYMENT DEMAND LETTER TEMPLATE

[Your company legal name]
[Address] · [Phone] · [Email]
Contractor license #: [number]

[Date]

Sent by certified mail, return receipt requested, and by email to [email]

[Customer full name]
[Mailing address]

Re: Final demand for payment, [job address], invoice [#]

Dear [Customer name],

Under our contract dated [date], [company] completed [brief scope] at [job address] on [completion date]. We sent invoice [#] for [amount] on [date], due [due date]. We have received [amount paid, or "no payment"] toward it. The balance of [amount] remains unpaid.

We have contacted you about this balance on [dates] by [email, text, phone and letter]. As of today, we have not received payment or a payment date.

This letter is our final request. Please pay [amount] by [pay-by date]. You can pay online at [payment link] by card or bank transfer, or mail a check payable to [legal name] to [address].

If you believe any part of this invoice is incorrect, please contact me by [date] at [phone] or [email] so we can review it. If you cannot pay the full amount by that date, call me and we will discuss a written payment plan.

If we do not receive payment or hear from you by [pay-by date], we intend to [file a claim in small claims court / refer this account to our attorney / refer this account to a collection agency / pursue our lien rights as permitted by law] without further notice.

Sincerely,
[Name], [Title]
[Company]

Enclosures: invoice [#], signed contract, [signed change orders], [statement of account]

Demand letter template for payment from a commercial client or GC

Commercial accounts and general contractors run on paperwork. Address the demand to the entity, copy the person who approved the work and the AP contact, and reference the PO, pay application and any retainage.

COMMERCIAL VERSION

Re: Final demand for payment, [project name], [PO / subcontract #], pay application [#]

Dear [AP contact or principal],

[Company] performed [scope] on [project name] at [address] under [subcontract / PO #] dated [date]. Pay application [#] for the period ending [date], in the amount of [amount], was submitted on [date] with [lien waiver, certified payroll or other required documents]. Payment was due on [date] under section [#] of our agreement. [Retainage of [amount] is not included in this demand.]

We followed up on [dates] with [names]. To date we have received [amount / no payment].

Please remit [amount] by [pay-by date] by ACH to [details or "using the remittance details on file"] or by check to [address]. If payment is being held for a documentation reason, tell us by [date] exactly what is needed and we will provide it.

If payment is not received by [pay-by date], we will [exercise our rights under the contract / pursue our mechanics lien and payment bond rights as permitted by law / refer the matter to counsel].

Sincerely,
[Name], [Title]

Short email version: sample letter regarding payment

EMAIL

Subject: Final demand for payment: invoice [#], [job address]

[Name], invoice [#] for [amount] was due on [date] and is now [X] days past due. We have reached out on [dates] without a response. Please pay by [pay-by date] at [payment link]. If we have not received payment or heard from you by then, we will [next step]. A formal letter is also on its way by certified mail.

[Name], [phone]

Example: a filled-in demand letter for an unpaid invoice

Here is the homeowner template filled in for a bathroom remodel. The company, customer and amounts are made up.

EXAMPLE LETTER

Bluestone Builders LLC · 1180 Mill Creek Road, Springfield, ST 00000 · (555) 018-4471 · License GC-000000 (example)

November 5, 2026 · Certified mail, return receipt requested, and email

Re: Final demand for payment, 214 Orchard Street, invoice #1082

Dear Mr. Avery,

Under our contract dated July 28, 2026, Bluestone Builders completed the primary bathroom remodel at 214 Orchard Street on September 12, 2026. We sent invoice #1082 for $9,400.00 on September 12, due September 22. We received $2,000.00 on October 3. The balance of $7,400.00 remains unpaid.

We contacted you on September 25, October 1, October 14 and October 24 by email, text and phone. On October 14 you said payment would be made by October 20. We have not received it.

Please pay $7,400.00 by November 19, 2026 at the payment link in the enclosed invoice, or by check to the address above. If you cannot pay in full, call me before that date to set up a written payment plan.

If we do not receive payment or hear from you by November 19, we intend to file a claim in small claims court without further notice.

Sincerely, Dana Ruiz, Office Manager

How to send a payment demand letter

Legal rules to know before you send one

This is general information, not legal advice. Collection, lien and court rules vary by state, so talk to a construction attorney before you rely on any of it.

Bring one overdue invoice.

We'll show you exactly how it would be followed up before it ever needs a demand letter, and what your customer would see when they pay.

Book a demo

What to do if the deadline passes

If the pay-by date comes and goes, do what the letter said. A demand letter you do not follow through on teaches the customer that your deadlines are suggestions. Your usual options are:

For the full collection path, read our guide on how to collect unpaid construction invoices.

Fewer invoices that ever need a demand letter

Most demand letters are written because follow-up slipped. Nobody sent the second reminder, the call never happened, and by day 60 the customer has moved on. A consistent follow-up schedule on every invoice keeps most balances from getting that far, and your AR aging report shows which ones are close.

That schedule is what AR Workflow's construction accounts receivable software runs for you on top of QuickBooks Online. It syncs your open invoices, follows up by email, two-way text and ringless voicemail from a dedicated number, includes a card or ACH payment link in every message, offers payment plans, and posts payments back to QuickBooks. It stops when the invoice is paid and keeps a record of every touch, which is exactly the history a demand letter needs. On insurance jobs, carrier and adjuster messages ask for status and documentation, never payment through a link.

Frequently asked questions

What is a payment demand letter?

A payment demand letter is a formal written request for an overdue amount. It states what is owed and why, sets a specific deadline to pay, explains how to pay, and names the step you will take if the deadline passes, such as small claims court, a lien or an attorney referral.

Is a demand letter legally binding?

No. A demand letter does not create a new obligation. The customer's obligation comes from your contract. The letter documents that you asked for payment in writing and gave a fair deadline, which can help if you go to court. Some contracts and state laws require written notice before certain steps, so check yours.

How long should I give a customer to pay after a demand letter?

Ten to fourteen days from the letter date is common for a contractor demand letter. Give a specific calendar date rather than "within 10 days," and make sure the deadline does not push you past any lien deadline in your state.

Should a lawyer send my demand letter?

For smaller residential balances, a letter from your company is usually enough. For large balances, disputed work, commercial accounts or anything you expect to end up in court, a letter from a construction attorney carries more weight and makes sure you are not missing a required notice.

Can I add late fees in a demand letter?

Only if your signed contract provides for them and your state allows the rate. You cannot introduce a new fee in a demand letter. Rules vary by state, so confirm with a construction attorney before you include any late charge or interest.

Related reading

Your invoice, not a feature tour.

Bring one overdue invoice to a demo and see what AR Workflow would send, when, and how your customer would pay.

Book a demo

This article is general information, not legal advice. Debt collection, lien, small claims and late fee rules vary by state; talk to a construction attorney about your situation.

Sam Frenzley
About the author

Sam Frenzley

Sam owned and ran three restoration companies for more than 14 years and collected over $100 million in receivables. He built AR Workflow in 2020 to give contractors the collections system he wished he'd had.

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