Tax mail

Mail tax documents online

Upload your IRS forms, schedules, and supporting documents and we print, seal, stamp, and mail them through USPS. The flat fee covers everything — no printer or post office trip.

Mail tax documentsSee pricing
From $5 per letterMailed via USPSShipped within 24 hoursNo printer needed

How it works

Four steps. Most letters take under two minutes from sign-in to mailed.

  1. 1

    Upload the forms

    Attach your 1040, Schedule C, 1099s, W-2s, or any other IRS form as PDFs.

  2. 2

    Add the IRS mailing address

    Use the address listed in the form's instructions for your state. Different forms go to different IRS service centers.

  3. 3

    Pay the flat fee

    One price covers paper, envelope, USPS postage, and delivery.

  4. 4

    We mail within 24 hours

    Your tax documents enter the USPS mail stream the next business day.

Who this is for

  • Individuals filing or replying to the IRS on paper
  • Self-employed filers sending Schedule C supporting documents
  • Expats and overseas filers mailing returns to the US
  • Tax preparers mailing on behalf of clients

Common use cases

1040 personal tax returns

Mail a paper 1040 when e-filing is not available for your situation.

IRS correspondence replies

Reply to an IRS notice requesting documents, supporting receipts, or clarification.

Self-employment forms

Send Schedule C, Schedule SE, or 1099 paperwork with supporting documents.

Authorization forms

Mail a signed Form 2848 (Power of Attorney) or Form 8821.

What you can rely on

PostPal is operated as a utility, not a marketing channel. We do one thing: print and mail your documents through USPS.

Domestic
$5
2-5 business days
International
$10
7-14 business days
  • Mailed within 24 hours via USPS
  • Up to 100 pages per letter for large filings
  • Files deleted from our systems after mailing
  • Email confirmation with mailing date for your records

Frequently asked questions

Will the IRS accept tax documents mailed through PostPal?

Yes. The IRS accepts paper documents delivered via USPS regardless of who put them in the mail. PostPal mails through USPS, so a letter mailed by us is delivered the same way as one you mailed yourself.

What address should I send to?

Use the address listed in your form's instructions for your state of residence. Different IRS forms go to different service centers — using the wrong address will delay processing.

Can I send a return with multiple schedules and 1099s?

Yes. Standard letters include up to 6 pages, and the extended-page option supports up to 100 pages with a small extra-stamp fee. Most personal returns fit comfortably.

Should I send tax documents by Certified Mail?

PostPal mails letters as standard USPS First-Class Mail. If you need Certified Mail with Return Receipt for proof of timely filing or proof of receipt, that is a different USPS product — let us know before paying and we will recommend a route.

Will my tax information stay private?

Yes. Files are reviewed only for legality, never read or stored beyond the mailing window. They are deleted from our systems after we mail your letter. Payment is handled by Stripe.

Related solutions

Other ways to send mail through PostPal.

Ready to send?

Type a letter or upload a PDF. We mail it via USPS within 24 hours.

Mail tax documents — $5See all solutions