The Complete Guide to Filing Taxes in Canada (2026)

Filing taxes in Canada is far simpler than the panic suggests. The CRA does most of the work for you — your slips arrive automatically, the software does the math, NETFILE submits in 30 seconds. The hardest part is knowing what you can claim. This guide covers every step, every deadline, and every credit Canadian households commonly miss.

Who has to file a Canadian tax return

• Anyone who owes tax for the year
• Anyone who received CPP, EI, OAS, or other federal benefits
• Anyone who wants to claim the GST/HST credit, Canada Child Benefit, or any provincial credit
• Anyone who wants to build RRSP room
• Anyone the CRA has asked to file (they’ll send a letter)

Practical translation: file every year, even with zero income. The GST/HST credit alone ($496/year for a single adult in 2026) is more than worth the 30 minutes. Newcomers especially: filing your first return is what unlocks the Canada Child Benefit and the GST/HST credit you’ve been entitled to since arrival.

Step-by-step: filing your return

1. Wait for all your slips (late February). Employers must mail T4s by February 28. Investment income (T5, T3), tuition (T2202), and any side gigs should also arrive in this window. Don’t file early and forget a slip — refiling is painful.
2. Set up CRA My Account. Go to canada.ca and register. It takes 10 minutes; the CRA mails you a security code that arrives in 5-10 business days. With My Account you can see your slips, RRSP room, NOAs, benefit history, and refund status.
3. Pick free filing software. Wealthsimple Tax, TurboTax Free, and StudioTax are all NETFILE-certified and free for simple returns. Newcomer first returns are usually simple — paid software adds no value for most people.
4. Enter every slip box-by-box. The software handles the math. Don’t skip the “newcomer” question if applicable — it adjusts your federal deductions and credits based on your arrival date.
5. Add deductions and credits. RRSP contributions (before March 1), donations, tuition (T2202 from your school), medical expenses over 3% of income, childcare expenses, transit (some provinces), home office (if eligible), moving expenses (if for work or school 40+ km away).
6. Review the summary before filing. The software shows refund/balance owing. Sanity-check: does the total income match the sum of your slips? If you owe hundreds you expected to refund (or vice versa), there’s a typo somewhere.
7. File via NETFILE. Direct submission to the CRA from the software. You get a confirmation number immediately. Refunds via direct deposit (set this up in CRA My Account) usually arrive within 8 business days.
8. Save your Notice of Assessment (NOA). The CRA emails it within a few weeks. It shows your final tax position, RRSP room for next year, and any carryforwards. Save the PDF; landlords and lenders ask for it.

Credits Canadian households commonly miss

• GST/HST credit — automatic if you file, but you must file. Up to $496/year single, $650 couple, plus $171 per child (2025-2026 benefit year amounts)
• Canada Child Benefit — up to $7,787/year per child under 6, $6,570 per child 6-17 (2025-2026 amounts). Apply via form RC66 once; tax filing keeps you eligible
• Canada Workers Benefit — refundable credit for low-income workers; up to $1,518 single, $2,616 family for the 2025 tax year
• Climate Action Incentive Payment — quarterly carbon-tax rebate in AB, MB, ON, SK, NB, NL, NS, PEI. Automatic if you file
• Tuition transfer — students with no income can transfer up to $5,000 of tuition credit to a parent or spouse
• Medical expenses — anything over 3% of income (or $2,635, whichever is lower). Includes dental, prescriptions, glasses, even travel for medical care
• Charitable donations — 15% federal credit on first $200, 29% above. Provincial credit on top
• Moving expenses — if you moved 40+ km closer to a new job or school, mostly deductible
• Working from home — simplified method gives $2/day to a cap; detailed method requires receipts but can be much larger for full WFH workers

Self-employed and side hustles

Income from Uber, DoorDash, Etsy, freelance work, or any side gig is taxable — even cash. Report every dollar. CRA matches reported income against bank deposits during audits, and unreported income is the #1 thing they catch.

The upside: you can deduct expenses against that income. Phone bill (business %), vehicle kilometres, software, home office portion, supplies. Track everything in a spreadsheet or app (QuickBooks Self-Employed, Wave, FreshBooks).

GST/HST registration: Required once your gross self-employment income hits $30,000 over four consecutive quarters. Voluntary before that — sometimes worth it because you can claim back GST/HST on business expenses.

If you owe — and can’t pay all at once

File on time anyway. The late-filing penalty (5% + 1% per month) is way worse than the interest on unpaid taxes (6-9% per year in 2026). The CRA accepts partial payments and will set up a payment plan if you call — they’d rather work with you than chase you.

Free help: CVITP clinics

The Community Volunteer Income Tax Program (CVITP) offers free tax filing for low-income Canadians (under ~$35,000 single, higher for families). Find a clinic at canada.ca/cvitp. They handle T1s, T2s for very small businesses, and most newcomer returns.

Related guides on Landed Money

• Filing Your First Tax Return in Canada (newcomer walkthrough)
• What Is the CRA? Understanding Their Letters
• The GST/HST Credit and Canada Child Benefit
• Tax Credits Newcomer Families Often Miss
• Side Hustle and Gig Work Taxes
• All tax guides on Landed Money