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Invoices forms
Invoice and payment-demand packet workflows for mailing business payment records online.
• Updated May 6, 2026
Available forms
1 form
Why this topic matters
Invoice disputes and overdue-payment follow-ups are stronger when the recipient gets a clear demand, the invoices, and supporting records in the same packet. PostalForm helps turn those materials into a reviewable packet before mailing.
When to use these workflows
- A customer has ignored emailed invoices and you need a mailed payment demand.
- You want to include invoices, contracts, delivery records, or correspondence as exhibits.
- You need a repeatable process for documenting payment-recovery mail.
How it works
- Choose the workflow that matches the packet you need to send
- Answer the guided questions and upload attachments when needed
- Review the generated PDF before checkout
- PostalForm prints and mails the packet through USPS