Your client won't pay?Fix that in 2 minutes.
FirmPay generates a professional payment demand letter that gets clients to pay — without hiring a lawyer.
How it works
From unpaid invoice to demand letter in three steps.
Enter your invoice details
Client name, amount owed, and a short description of the work.
We generate your demand letter
Instant, legal-grade letter adapted to your state's small claims rules.
Send it. Get paid.
Copy or download the letter and email it directly to your client.
Join 2,400+ freelancers who have recovered their payments
Unpaid invoices are killing freelancers
Lawyers cost too much — not worth it for a $500 invoice.
Payment reminders get ignored. Demand letters don't.
76M US freelancers have unpaid invoices averaging $17,500.
Everything you need to get paid
Adapts to all 50 US states automatically
Legal-grade demand letter language
Automatic follow-up letter if ignored (Pro)
PDF export ready to print or email (Pro)
Full letter history saved to your account
Works for any invoice amount $100–$25,000
Freelancers, finally paid
"I sent the letter and got paid $1,400 in 48 hours. I had given up on this invoice."
"My client ignored 4 email reminders. One FirmPay letter and they paid the same day."
"Finally something that actually works for freelancers chasing payments."
Stop writing off unpaid invoices.
It takes two minutes. The letter is free.
Generate your first letter free