How to File Taxes in Canada: 2026 Step-by-Step Guide

Every Canadian resident who earns income — or wants to claim benefits like the GST/HST credit, Canada Child Benefit, or the new Canada Groceries and Essentials Benefit — needs to file a personal tax return. Yet every year, millions of Canadians leave it to the last minute, miss deductions, or skip filing entirely.

This guide walks you through the entire process of filing your 2025 T1 personal tax return in Canada, from gathering your documents to submitting your return and tracking your refund. No jargon, no fluff — just exactly what you need to do.

Key Dates for the 2025 Tax Year

Before anything else, know your deadlines:

Important: Even though self-employed Canadians have until June 15 to file, any taxes owed are still due by April 30. Interest starts accruing on May 1 on unpaid balances. For a full timeline, see our complete Canadian tax deadlines calendar for 2026.

Step 1: Gather Your Tax Documents

You can’t file accurately without the right paperwork. Most documents are available by the end of February. Here’s what to collect:

Employment Income

• T4 — Statement of Remuneration Paid (from each employer)
• T4A — Pension, retirement, annuity, or other income
• T4E — Employment Insurance benefits

Investment and Savings Income

• T5 — Investment income (interest, dividends)
• T3 — Trust income (mutual funds held outside registered accounts)
• T5008 — Securities transactions (capital gains/losses)
• RRSP contribution receipts — from your financial institution
• T2202 — Tuition and education amounts

Self-Employment Income

• T2125 — Statement of Business Activities (you prepare this yourself)
• Records of all business income and expenses
• Vehicle logbook (if claiming vehicle expenses)
• Home office measurements (if claiming home office)

Other Slips and Documents

• RC62 — Universal Child Care Benefit (if applicable)
• T4A(OAS) and T4A(P) — Old Age Security and CPP/QPP
• Rental income records — if you own rental property
• Charitable donation receipts
• Medical expense receipts — prescriptions, dental, vision, travel for medical care
• Childcare receipts — from daycare, camps, nannies
• Moving expense records — if you moved 40+ km closer to work or school

Pro tip: Log into your CRA My Account. Under “Tax Information Slips,” you can see most of the T-slips that employers and institutions have filed on your behalf. This is the fastest way to confirm you’re not missing anything.

Step 2: Choose How to File

You have three main options for filing your return in Canada:

Option A: File Online with NETFILE

NETFILE is the CRA’s electronic filing system. You use CRA-certified tax software to prepare your return, then submit it electronically. This is the fastest method — refunds typically arrive within 2 weeks.

CRA-certified free software options include:

• Wealthsimple Tax (free, donation-based)
• StudioTax (free for basic returns)
• TurboTax (free tier for simple returns; paid for more complex situations)
• H&R Block Online (free basic tier available)

All certified software connects to NETFILE and handles the math automatically.

Option B: Hire an Accountant or Tax Professional

If your situation involves self-employment income, rental properties, investments, a business, or if you just want to make sure you’re not missing anything, a tax professional can file on your behalf using EFILE (the professional version of NETFILE).

A good accountant doesn’t just fill in boxes — they identify deductions and credits you might miss, flag potential CRA audit triggers, and make sure your return is optimized. The cost of professional preparation often pays for itself in additional deductions alone.

Option C: File a Paper Return

You can still file by mail, but there’s rarely a good reason to. Paper returns take 8+ weeks to process, they’re more prone to errors, and you can’t use Auto-fill My Return (which pulls your T-slips directly into the software).

If you must file on paper, you can get the T1 General package from the CRA website or a Canada Post office.

Step 3: Understand What Goes on Your Return

A T1 personal tax return is organized into these sections:

Total Income (Lines 10100–14700)

This is everything you earned in 2025: employment income, self-employment income, EI benefits, pensions, investment income, rental income, capital gains, and any other income.

Net Income (Lines 20600–23600)

From your total income, you subtract specific deductions that reduce your taxable income:

• RRSP contributions — one of the most powerful deductions available
• Union or professional dues
• Childcare expenses
• Moving expenses (if you moved for work or school)
• Employment expenses (if you have a signed T2200 from your employer)

Taxable Income (Lines 24400–26000)

Further deductions are applied, including capital loss carryovers and the Northern Residents deduction.

Federal Tax and Credits (Schedule 1)

Your federal tax is calculated on your taxable income using the progressive tax brackets:

Then non-refundable credits reduce the tax you owe: the basic personal amount ($16,129 in 2025), CPP/EI contributions, tuition, medical expenses, donations, and others.

Provincial Tax

Every province calculates its own tax using provincial brackets and credits. Your tax software handles this automatically based on your province of residence on December 31, 2025.

Step 4: Claim Every Credit and Deduction You’re Entitled To

This is where most Canadians leave money behind. Here are the most commonly missed deductions and credits:

Frequently Missed Deductions

• RRSP contributions — Check your contribution room on your Notice of Assessment or CRA My Account. You can carry unused room forward indefinitely. Not sure whether to prioritize your RRSP or TFSA? Read our RRSP vs TFSA comparison.
• Medical expenses — You can claim expenses that exceed 3% of your net income (or $2,759, whichever is less). This includes prescriptions, dental work, glasses, and even travel over 40 km for medical treatment.
• Moving expenses — If you moved at least 40 km closer to a new job or school, you can deduct moving costs including travel, temporary housing, lease cancellation fees, and utility hookups.
• Home office expenses — If you work from home, even part-time, you may be able to claim a portion of your rent, utilities, and internet. Self-employed? See our full list of 17 deductions for self-employed Canadians.
• Carrying charges — Interest on money borrowed to invest, investment management fees (outside registered accounts), and accounting fees for investment income.

Frequently Missed Credits

• Canada Workers Benefit — A refundable credit for low-income workers. Maximum of $1,590 for a single person or $2,739 for a family in 2025.
• Disability Tax Credit — If you or a dependant has a severe and prolonged impairment. Worth over $9,000 in federal tax savings, plus provincial amounts.
• Canada Caregiver Credit — If you support a dependant with a physical or mental impairment.
• Climate Action Incentive — Residents of provinces without their own carbon pricing system receive quarterly payments, but you need to file to get them.
• Tuition carryforward — If you had tuition credits in previous years and didn’t use them, they carry forward until you have tax to offset.

Step 5: File Your Return

Once your return is complete in your tax software:

1. Review the summary — Check your total income, deductions, and final result (refund or amount owing)
2. NETFILE or EFILE — Click submit. You’ll receive a confirmation number immediately
3. Keep your records — The CRA requires you to keep all supporting documents for 6 years from the end of the tax year. You don’t submit receipts with your return, but the CRA can ask for them during a review

Your Notice of Assessment (NOA) will be available in your CRA My Account within 1–2 weeks of filing electronically. Review it carefully — it confirms your assessment, any adjustments the CRA made, and your RRSP contribution room for the following year.

Step 6: Track Your Refund

If you’re getting a refund:

• Filed with NETFILE + direct deposit: Expect your refund within 8 business days
• Filed with NETFILE + cheque: Expect your refund within 4–6 weeks
• Filed on paper: Expect 8+ weeks

You can track the status of your return in CRA My Account under “Refund status.”

If you owe tax, you can pay through:

• CRA My Account (online banking through My Payment)
• Your bank’s bill payment feature (payee: “CRA Revenue — Current Year Tax Return”)
• Pre-authorized debit — you can set up a payment plan if you can’t pay the full amount immediately

Common Mistakes That Delay Your Return

Avoid these to prevent reassessments, delays, or CRA reviews:

1. Forgetting to report income — The CRA has copies of all your T-slips. If you miss one, they’ll catch it and reassess your return, often adding interest and penalties
2. Claiming expenses without receipts — You need documentation for everything you deduct
3. Wrong direct deposit information — Double-check your banking details
4. Not reporting foreign income — If you have foreign assets over $100,000, you must file a T1135. Penalties for non-disclosure are severe
5. Filing under the wrong province — Your province of residence is where you lived on December 31, not where you worked

When You Should Hire a Professional

Filing software works well for straightforward returns — one employer, maybe some RRSP contributions, and standard deductions. But your situation might call for expert help if:

• You’re self-employed with business income and expenses
• You have rental properties or real estate transactions
• You sold investments and need to calculate capital gains
• You have foreign income or foreign assets
• You’re going through a divorce or separation with shared custody
• You’re behind on filing and need to file multiple years
• You received a CRA review letter or notice of reassessment
• You want to make sure you’re maximizing every deduction and credit

The cost of professional tax preparation ranges from $75 to $300+ for personal returns, depending on complexity. For most clients, the additional deductions and credits identified more than cover the fee.

File Today, Benefit Tomorrow

Filing your tax return isn’t just about this year’s refund. It’s the gateway to every government benefit: the GST/HST credit, the Canada Child Benefit, provincial credits, and now the new Canada Groceries and Essentials Benefit starting July 2026. In fact, there’s a one-time GST/HST top-up payment of up to $717 landing June 5, 2026 — but only if you’ve filed. If you don’t file, you don’t get paid.

If your return is straightforward, grab a CRA-certified free software and do it this weekend. If it’s more complex, or if you want a professional making sure nothing is missed — we’re here.

Book a free consultation and we’ll take care of your 2025 return from start to finish.

This guide reflects Canadian federal tax rules for the 2025 tax year, filed in 2026. Provincial rules vary. For the latest CRA information, visit canada.ca/taxes.