What should I do after filing taxes as a freelancer?

Five things: read your Notice of Assessment when it arrives and confirm it matches what you filed; note your RRSP deduction limit for next year (it's printed on the NOA); check whether CRA quarterly instalments now apply to you (they kick in when your net tax owing is over $3,000, or $1,800 in Quebec, in both the current year and one of the two prior years); store your records for at least 6 years; and set up your expense tracking for the current year so next spring isn't a scramble.

Do I need to pay tax instalments after my first big freelance year?

Possibly. CRA requires 2026 instalments if your net tax owing is over $3,000 ($1,800 for Quebec) in 2026 AND it was over that threshold in either 2025 or 2024. The remaining 2026 due dates are September 15 and December 15. If you owed a few thousand dollars when you filed this spring, run the instalment check now rather than discovering interest charges later.

How long do I need to keep my tax records after filing?

Keep all business records and supporting documents for at least 6 years from the end of the tax year they relate to. Receipts from the 2025 tax year must be kept until at least December 31, 2031. The CRA does not ask for receipts when you file, but if they review your return and you can't produce them, the deductions get denied.

Can I change my tax return after I've filed it?

Yes. Once you receive your Notice of Assessment, you can request changes online through your CRA account ("Change my return") or through certified tax software ("ReFILE"), typically processed within 2 weeks, or by mailing Form T1-ADJ, processed within about 9 weeks. Missed deductions can generally be claimed going back 10 calendar years.

What to Do After Filing Taxes as a Freelancer in Canada (2026)

Most tax advice stops at "file by the deadline." But for freelancers, what happens after you file is where next year's tax bill gets decided — and where this year's surprises show up.

If you filed your 2025 return this spring (the self-employed filing deadline was June 15, 2026, with any balance owing due April 30, 2026), here's your post-filing checklist.

1 Read Your Notice of Assessment — Actually Read It

The CRA sends a Notice of Assessment (NOA) after processing your return. Don't just file it away. Check:

Does the assessed amount match what you filed? If the CRA changed something, the NOA shows what and why.
Your RRSP deduction limit for next year. It's printed right on the NOA. For freelancers this is the single most useful number on the page — it's how much you can shelter from tax next spring. Our RRSP guide for the self-employed covers how the limit is calculated.
Any carry-forward amounts — unused RRSP room, capital losses, or unused home office expenses that couldn't be claimed this year (home office expenses can't create a business loss, but they carry forward).

💡 Keep the NOA itself. You'll need it to register for CRA services, apply for a mortgage, and verify your instalment requirements. Save the PDF from your CRA account.

2 Check Whether Instalments Now Apply to You

This is the step that bites first-time freelancers. If your net tax owing was over $3,000 ($1,800 for Quebec) when you filed, the CRA may expect you to pay quarterly instalments going forward instead of one lump sum next April.

The rule: you must pay 2026 instalments if your net tax owing is over the threshold in 2026 AND it was over the threshold in either 2025 or 2024. The remaining 2026 instalment dates are September 15, 2026 and December 15, 2026.

Don't guess. Our free instalment checker runs the CRA's actual requirement test and compares all three CRA payment options — and can email you a reminder with your computed amounts before the September 15 deadline.

3 Store Your Records (6 Years, Minimum)

The CRA requires you to keep all business records and supporting documents for at least 6 years from the end of the tax year they relate to. Your 2025 receipts need to survive until at least December 31, 2031.

Do it now while everything is still in one place: back up your receipt folder, statements, and a copy of the return itself to cloud storage. If your receipts are still a shoebox, our receipt organization system takes an afternoon.

4 Spot a Mistake or a Missed Deduction? Fix It

Filed and then remembered the laptop you bought in November? Forgot to claim your home office? You can request a change once your NOA arrives — online through your CRA account or your tax software, usually processed within 2 weeks.

We wrote a full guide: how to claim missed deductions after filing — including how many years back you can go.

5 Set Up the Current Year So Next Spring Is Easy

The best time to fix next year's tax season is right after this one. Four moves:

Track expenses as they happen. Our free expense tracker sorts everything onto the correct T2125 lines with GST/HST extraction, entirely on your device.
Separate business and personal money if you haven't — here's the simple setup.
Set aside tax from every invoice. Run your expected income through the self-employed tax calculator to see your combined tax + CPP rate, and move that percentage to a separate account each time you're paid.
Watch the GST/HST threshold. Registration isn't "at $30k per year" — it's any single quarter over $30,000 or any four consecutive quarters totalling over it. The registration checker computes your exact position.

✅ The whole checklist, in one line: read the NOA, check instalments, archive records, fix mistakes, start tracking. About an hour of work that saves days next spring.

📅 Don't Miss September 15

The next CRA instalment deadline is September 15, 2026. Run the free requirement test, see your computed amounts under all three CRA options, and get a reminder before it's due.

Check My Instalment Requirements — Free

More Resources

Deadlines and thresholds on this page come from our tested deadline and instalment engines, verified against CRA-published sources (last checked July 11, 2026). Estimates only — this is general information, not tax advice.