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How to Fax a Canada Tax Return to the CRA (Verify First)
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How to fax a tax return to CRA: most residents should NETFILE or mail. Temporary fax applies to some non-resident T1s—verify on Canada.ca, then send PDF online.
Quick answer: Searching how to fax tax return to CRA or how to fax Canada tax return usually means a deadline is close. For most resident filers, the CRA still wants NETFILE or a mailed paper T1—not a fax. A temporary fax option has applied to some non-resident / deemed resident returns because of international mail delays. Verify on Canada.ca before you send anything.
RonFax can dial a Canadian fax number when CRA says fax is allowed. We are not affiliated with the Canada Revenue Agency.
Official path first (verify on Canada.ca)
Per Where to mail your paper T1 return and related CRA tax-centre pages:
| Who you are | Typical channel |
|---|---|
| Most residents | NETFILE / certified software, or mail to the tax centre for your province |
| Non-resident / deemed resident (when the temporary measure is active) | Mail or, if CRA still lists it, fax to the tax centre that matches your country / region |
Important: Temporary measures change. If Canada.ca no longer lists fax for your return type, do not invent a number from a blog—use NETFILE or mail instead.
Fax numbers often cited for temporary non-resident T1 fax
When the CRA page still authorizes fax for your case, it has listed lines such as:
| Tax centre | Fax (verify on Canada.ca) | Common matching guidance on CRA tables |
|---|---|---|
| Winnipeg Tax Centre | 204-984-5164 | Includes filers linked to USA (and other listed countries / regions on the CRA table) |
| Sudbury Tax Centre | 705-671-3994 or 1-855-276-1529 | Other countries / regions as shown on the CRA table |
Treat every digit as verify-or-skip. Copy from Canada.ca, not from memory.
Other CRA offices publish fax numbers for correspondence—those are not automatically the right line for a full T1 package. Match the form and the instruction sheet you are following.
How to send the PDF online (when fax is allowed)
- Export your signed return package as one ordered PDF (follow CRA page limits and attachment rules).
- Confirm the fax digits on the current Canada.ca instructions for your situation.
- Open ronfax.com, enter the 10-digit Canada number, upload, and pay once ($1.99 up to 3 pages; $0.50 per extra page).
- Save your status link and Stripe receipt until CRA shows the return as received.
Email start: attach the PDF to fax@ronfax.com with the fax number in the Subject—see email-to-fax.
What RonFax does / does not do
- Does: Transmit the PDF you upload to the fax number you enter (US and Canada).
- Does not: Prepare your T1, choose your tax centre, or confirm CRA accepted the filing.
If you are a US filer looking for IRS lines instead, see IRS Form 2553 fax or IRS Kansas City MeF rejects.
Related
Deadlines favor the channel CRA publishes today—NETFILE, mail, or (only when listed) fax. RonFax is the last mile when that channel is fax.
Frequently asked questions
- Can I fax my Canada tax return to the CRA?
- Most resident individuals should file online (NETFILE) or mail a paper T1 to the correct tax centre—not fax. Due to international mail delays, the CRA has temporarily accepted certain non-resident (and deemed resident) income tax returns by fax. Confirm the current rule on Canada.ca before sending.
- What is the CRA fax number for a tax return?
- There is no single nationwide fax for every return. When the temporary non-resident fax option applies, Canada.ca lists tax-centre fax lines such as Winnipeg 204-984-5164 and Sudbury 705-671-3994 or 1-855-276-1529—matched to where you live. Always verify on the official page before dialing.
- Can I send a CRA fax from the US with RonFax?
- Yes, if CRA instructions say fax is allowed for your situation. RonFax sends to 10-digit Canada fax numbers. Upload your PDF, confirm the digits match Canada.ca, pay once, and track status.
Send from anywhere in the US
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