Skip to contentBack to PostalForm
Guide
How to organize attachments for a payment demand packet
A clean, organized packet helps the recipient understand what you are asking for and why. Use this simple order to avoid confusion.
Published Jan 20, 2026
Recommended order
- Demand letter - Summary, amount due, and deadline.
- Invoice(s) - Each invoice referenced in the letter.
- Contract or scope of work - The agreement that supports the charges.
- Supporting documents - Change orders, delivery confirmations, or timelines.
Organization tips
- Name each attachment clearly (Invoice-123.pdf, Contract.pdf).
- Include a short list of attachments in the letter.
- Keep everything in one PDF to avoid missing pages.
Mailing checklist
- Verify recipient address and contact details.
- Save the packet as a single PDF.
- Keep a copy for your records.
Recommended mailing method
If you need proof of delivery, use Certified Mail with electronic return receipt (First Class only). If the deadline is tight, consider Express (1-3 business days). Certified Mail is only available with First Class.
Certified Mail with electronic return receipt (First Class only)
What you get
- • Attachment organization guide
- • Certified Mail with electronic return receipt (First Class only)
- • First Class or Express delivery options
FAQs
- Can I send multiple PDFs?
- It is best to combine them into one PDF packet.
- Do you print attachments?
- Yes. We print everything you upload.
Ready to send it?
Upload your finalized PDF and we will handle printing and USPS mailing.