Tax mail

Reply to a CRA letter online

When the CRA sends you a letter requesting documents or asking questions, you can reply in writing. Type or upload your response, attach supporting documents, and we print and mail it through Canada Post within 24 hours.

Reply to the CRASee pricing
From $6 per letterMailed via Canada PostShipped within 24 hoursNo printer needed

How it works

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

  1. 1

    Type or upload your response

    Reference the CRA case number from the letter you received. Address your response to each question they raised.

  2. 2

    Attach supporting documents

    Receipts, statements, T-slips, expense logs — up to five attachments per letter.

  3. 3

    Use the CRA address from the letter

    Each CRA letter prints a specific reply address (often a tax centre P.O. box). Use that exact address.

  4. 4

    We mail within 24 hours

    You receive a dated email confirmation. The PDF copy is kept on your order page.

Who this is for

  • Individuals replying to a CRA review or request for information
  • Self-employed taxpayers responding to T2125 reviews
  • New Canadians responding to first-time residency or benefit reviews
  • Anyone who has received a CRA letter and needs to respond by paper

Common use cases

Pre-assessment review (PAR) replies

Reply to a CRA pre-assessment review with copies of receipts, T-slips, or supporting forms.

Post-assessment review replies

Reply to a post-assessment review or processing review with the requested documents.

Benefit and credit verifications

Respond to CCB, GST/HST credit, or other benefit eligibility reviews with proof of residency or relationship.

Self-employed reviews

Respond to T2125 expense reviews with detailed receipts and a written summary.

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 Canada Post.

Domestic
$6
2-4 business days
International
$12
6-12 business days
  • Mailed via Canada Post within 24 hours
  • Up to 100 pages per letter for large bundles of receipts
  • Dated email receipt to track response timelines
  • Files deleted after mailing

Frequently asked questions

What address should I send my reply to?

Use the exact address printed on the CRA letter you received. CRA letters typically reference a specific tax centre and case number — sending to the wrong address can delay or misroute your reply.

Do I need to include the CRA case number?

Yes. Always include the case or reference number from the original CRA letter at the top of your response. Without it, the CRA cannot match your reply to the file.

Should I send by registered mail?

For high-stakes responses (audits, large amounts owing, deadline-sensitive replies), registered mail provides proof of receipt. PostPal mails standard lettermail; for registered mail, contact us before paying.

How long do I have to respond?

CRA letters print a deadline (often 30 days). Respond before the deadline, or contact the CRA to request an extension. Missing the deadline can result in adjustments to your assessment without further notice.

Can I include lots of receipts?

Yes. PostPal mails up to 100 pages per letter under the extended-page option. Most CRA reviews fit comfortably. Organise receipts by category and reference each one in your written response.

Should I keep a copy of what I sent?

Always. Your order page on PostPal stores the exact PDF that was printed and mailed. Keep your own copy of receipts and any supporting documents in case the CRA requests them again.

Related solutions

Other ways to send mail through PostPal.

Ready to send?

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

Reply to the CRA — $6See all solutions