Past Due Notice Letter Template
Formal notice for past due accounts and delinquent payments.
Business · Updated September 27, 2026
Copy and download are free. Mailing options and prices.
Before you start
Use this past due notice letter template to create a clear, signed, mail-ready record. Fill in the bracketed details, review any legal or policy requirements, then copy, download, or send it online with tracking.
When to Use This Past Due Notice Letter Template
- Formal notice for past due accounts and delinquent payments.
- The recipient requires a signed letter or written notice.
- You need a dated paper trail before a deadline or dispute escalates.
- You want delivery tracking and a copy for your records.
- You need a reusable starting point that can be customized before mailing.
How to Use This Past Due Notice Letter Template
- Customize the placeholders. Replace every bracketed field with the sender, recipient, date, account, address, amount, or case details that apply.
- Review requirements. Check the contract, agency instructions, court rule, state law, or recipient policy before sending.
- Attach supporting copies. Include copies of relevant notices, receipts, records, photos, invoices, or forms when they strengthen the letter.
- Keep your records. Save a copy of the completed letter and any attachments before mailing.
- Send with tracking when it matters. Use Certified Mail or another tracked service when timing, proof of delivery, or dispute documentation matters.
Mailing and Recordkeeping Tips
- Keep the tone direct, factual, and professional.
- Use copies of supporting documents unless originals are specifically required.
- Save the completed letter, attachments, mailing receipt, and tracking number together.
Frequently asked questions
When should I send a past due notice?
Send a past due notice when an invoice is significantly overdue (typically 30+ days) and previous reminders have not resulted in payment. Escalate the urgency as time passes.
Can I charge interest on past due invoices?
Yes, if you disclosed the interest rate upfront (on the original invoice or in your contract). Check your state laws for maximum allowable interest rates.
When should I send to collections?
Most businesses consider collections after 60-90 days of non-payment with no response. Before doing so, send a final notice warning that the account will be turned over to collections.
Should I use certified mail for past due notices?
Yes, especially for final notices before legal action or collections. Certified mail provides proof of delivery, which may be important in legal proceedings.
What if the customer disputes the debt?
Take disputes seriously. Investigate the claim and respond in writing. If the debt is valid, provide documentation. If there was an error, correct it and adjust the amount owed.
Are there legal requirements for collection notices?
Yes, especially if you are a debt collector or using one. The Fair Debt Collection Practices Act (FDCPA) requires specific disclosures. Consult an attorney for compliance guidance.
What is the difference between a demand letter and a past due notice?
A past due notice is a formal reminder that payment is overdue and requests immediate payment. A demand letter is typically more aggressive—it demands payment within a specific deadline and explicitly threatens legal action if payment is not received. Past due notices are usually sent earlier in the collection process, while demand letters are often a final step before litigation.
If using a collection agency or if you are a debt collector, ensure compliance with the Fair Debt Collection Practices Act (FDCPA).
Related templates and resources
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