Resource hub
Demand letter resources
Templates and guides for sending payment demand letters the right way.
Published Jan 20, 2026 • Updated May 30, 2026
How it works
Fill out form
Complete the guided fields online.
Preview PDF
Review the generated PDF before mailing.
We print and mail it via USPS.
Who this hub is for
- Businesses or contractors requesting overdue payment
- Individuals requesting reimbursement or repayment
- Anyone who needs a clear written record before escalation
How it works with PostalForm
- Choose the right path — start the guided payment-demand packet workflow, use a template, or upload your own PDF
- Organize supporting records — invoices, photos, agreements, or correspondence
- Mail with proof — add Certified Mail for tracking and signature
Guided workflows
- Security Deposit Demand Packets — generate a state-specific renter demand letter, attach evidence, add landlord or property-manager recipients, and mail each copy by Certified Mail
- Payment Demand Packets — answer guided questions, upload invoices and supporting documents, preview the assembled packet, and continue straight to mailing
- Arizona 20-Day Preliminary Notice — generate an Arizona preliminary notice packet, add owner, contractor, lender, and hiring-party recipients, review the PDF, and continue to Certified Mail
- California 20-Day Preliminary Notice — generate a California preliminary notice packet, add multiple recipients, review the PDF, and continue to Certified Mail
- Florida Notice to Owner / Notice to Contractor — prepare a Florida construction notice packet, review the generated PDF, and continue straight to Certified Mail checkout
- Texas Notice of Claim for Unpaid Labor or Materials — generate a Texas construction notice packet, attach invoices, add owner and original-contractor recipients, and send each copy by Certified Mail
Templates
- Final notice before legal action letter template
- Payment demand letter template for services rendered
- Notice of intent to send to collections letter template
- Payment plan request letter template and installment sample
- Payment demand letter template for multiple invoices and job sites
- Contractor payment request letter sample and demand template
- General contractor payment demand letter template
- Roofing contractor payment demand letter template
- Roofing invoice final notice letter template
- Second notice overdue invoice letter template
- Past due invoice reminder letter template (friendly)
- Notice of intent to file a mechanics lien letter template
Trade-specific templates
Guides
- Security Deposit Demand Letter: Generate and Mail It Online
- Arizona 20-Day Preliminary Notice online
- Texas Notice of Claim for Unpaid Labor or Materials online
- California 20-Day Preliminary Notice online
- Florida Notice to Owner online
- Mail a pre-lien notice online
- How to mail a demand letter (and keep proof)
- Demand letter checklist
- How to write a final payment notice that is clear
- How long to give in a demand letter
- How to organize attachments for a payment demand packet
- How to mail a notice of intent to lien
- What to include in a pre-lien notice packet
- What to do if you receive a final notice before legal action
Certified Mail option
Need proof of delivery? Use Certified Mail with electronic return receipt (First Class only).
Certified Mail with electronic return receipt (First Class only)
Ready to send it?
Start with the guided packet workflow when you want more than a one-page letter. If you already have a finished PDF, you can still upload it directly. Start payment demand packets Start security deposit demand packets Start Arizona 20-Day Preliminary Notice Start California 20-Day Preliminary Notice Start Florida Notice to Owner Start Texas Notice of Claim Mail a demand letter