With digital filing options like NETFILE dominating tax season in Canada, it’s easy to overlook traditional paper returns. But in certain cases, filing your 2025 Canadian tax return by mail is not only acceptable—it may be required or even beneficial. This guide explains who should still file by paper, the key mailing dates, and how to avoid delays and penalties.
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📮 What Is a Paper Tax Return?
A paper tax return is a printed version of your completed T1 Income Tax and Benefit Return submitted to the Canada Revenue Agency (CRA) by mail. While the majority of Canadians use electronic filing, paper filing remains an option and necessity in several scenarios.
📝 When You Must File by Mail in 2025
The CRA does not support NETFILE for all taxpayers. You must file a paper return if:
- You are filing a return for a deceased person
- You went bankrupt in 2024 or 2025
- You’re filing under Section 216 or 217 (non-resident income)
- You need to include documents not supported by online software (e.g., elections or special elections)
- You’re amending a previous year’s return manually
📌 When You May Want to File by Mail (Optional)
Even if you’re eligible to NETFILE, you might still choose a paper return if:
- You’re not comfortable with digital platforms
- You prefer working with printed documents
- You’re filing on behalf of someone else without internet access
- You want to attach supporting documents manually
📅 Key Deadlines for Paper Filing in 2025
- April 30, 2025 – Filing deadline for most individual taxpayers
- June 15, 2025 – Filing deadline for self-employed individuals (payment still due by April 30)
- March 1, 2025 – Final day to contribute to RRSPs for 2024 tax year
📦 Where to Mail Your Return
The address to mail your return depends on where you live and whether you’re including a payment. CRA maintains a current list of mailing addresses by province. Always include:
- Completed T1 General form
- All slips and supporting documents
- Schedule 1 and any additional forms
- Payment (if applicable) with a remittance slip
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📥 How to Get a Paper Tax Package
- Download & print: Forms and guides are available at CRA’s forms and publications page
- Order by mail: Call 1-855-330-3305 to request a paper package
- Pickup in person: Some Canada Post offices carry tax packages in early spring
🛑 Drawbacks of Filing by Mail
- Much slower refund processing (8+ weeks vs. 8 days with NETFILE)
- Higher chance of errors from manual entry
- Increased risk of lost documents if not tracked
- No immediate confirmation of receipt
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📢 Final Thoughts: Should You File on Paper?
While NETFILE remains the fastest and most efficient way to file taxes in Canada, there are legitimate cases where paper filing is necessary or preferred. If you’re filing for a deceased person, including special elections, or simply want the peace of mind of paper copies, filing by mail in 2025 remains a viable option.
Just be sure to mail early, track your submission, and include all necessary forms to avoid delays or penalties.
Disclaimer: This article is for informational purposes only. Always check current CRA guidelines or consult a tax professional for personalized advice on filing your Canadian tax return.
