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How to File Your Canadian Taxes: A Step-by-Step Guide

✍️ Swift Accounting ⏱ 6 min read 🇨🇦 Canadian Tax

Who Must File a Canadian Tax Return?

Filing a Canadian personal income tax return (the T1 General) is required in more situations than many people realize. You must file if you owe taxes, but you should also file — even with no tax owing — to claim refundable credits like the GST/HST credit, the Canada Child Benefit, or the Canada Workers Benefit. CRA cannot issue these benefits without a filed return. We recommend working with our personal tax filing services team.

You are required to file a T1 return if you: had tax withheld but want a refund, received a request from CRA to file, disposed of capital property (like selling investments or a rental property), owe taxes for any reason, or are self-employed. When in doubt, file — there is no penalty for filing unnecessarily, but there can be significant consequences for not filing when required.

Step 1: Gather Your Documents

Before you open any software or call an accountant, collect everything you'll need. Most tax slips are issued by the last day of February for the prior tax year. Common slips include:

  • T4: Employment income and deductions from each employer
  • T4A: Other income — pension, self-employment, scholarships, COVID benefits
  • T5: Investment income — bank interest and dividends
  • T3: Trust income distributions from mutual funds and ETFs
  • T4RSP / T4RIF: RRSP or RRIF withdrawals
  • T4E: Employment Insurance benefits
  • T5013: Partnership income
  • RRSP contribution receipts (from the current and prior year's first 60 days)
  • Charitable donation receipts
  • Medical expense receipts
  • Child care receipts
  • T2202: Tuition fees from educational institutions
CRA Auto-Fill My Return If you use certified tax software and have a CRA My Account login, the Auto-Fill My Return (AFR) feature automatically imports most of your slips directly from CRA's records. This saves time and reduces transcription errors — though you should still verify that all slips have been captured.

Step 2: Choose How You'll File

There are three main ways to file your Canadian personal return:

Tax Software (NETFILE)

Certified tax software like TurboTax, Wealthsimple Tax, H&R Block, or StudioTax lets you prepare your return and submit it directly to CRA via NETFILE. This is the fastest way to receive a refund (typically within 2 weeks with direct deposit). Free versions are available for simple returns.

Professional Tax Preparer

A tax professional or tax preparer handles your return from start to finish, ensuring every deduction is captured and every schedule is correct. This is the best option for self-employed individuals, those with rental income, investors with capital gains, or anyone whose situation has changed significantly in the year.

Paper Filing

You can still mail a paper return to CRA, but processing takes 8+ weeks and you cannot use Auto-Fill. Paper filing is generally only recommended when electronic filing is not possible.

Step 3: Complete Your Return

The T1 General return captures all income sources on pages 1-2, then applies deductions (like RRSP contributions, union dues, and child care expenses) to arrive at your net income. From net income, further deductions (like moving expenses and business investment losses) reduce your taxable income. Federal and provincial tax is then calculated, and non-refundable tax credits — like the basic personal amount ($16,129 in 2025), medical expenses, and charitable donations — reduce your tax owing.

Refundable credits like the GST/HST credit and Canada Child Benefit are determined by your net income and family situation — filing your return is what triggers these payments.

Step 4: Review and Submit

Before filing, review your return carefully:

  • Confirm your social insurance number, address, and banking information (for direct deposit) are correct
  • Verify that all slips are accounted for — missing a T5 or T3 is a common audit trigger
  • Check that your RRSP deduction matches your contribution receipts and doesn't exceed your available room
  • Confirm carryforward amounts (like capital losses or unused RRSP room) match your prior Notice of Assessment

Once submitted via NETFILE, you'll receive a confirmation number from CRA — keep this for your records. CRA will issue a Notice of Assessment within a few weeks confirming whether your return was accepted as filed or if any adjustments were made.

Step 5: Pay What You Owe or Receive Your Refund

If your return shows a balance owing, it must be paid by April 30, 2026 for the 2025 tax year to avoid interest charges (even if you have an extended June 15 filing deadline as a self-employed individual). Payment options include online banking, My Account on CRA's website, or mail.

If you're entitled to a refund, CRA will direct-deposit it to the bank account on file — typically within 2 weeks for electronically filed returns. Set up direct deposit through CRA My Account to get your refund as fast as possible.

Keep Your Records CRA can reassess returns up to three years after the original Notice of Assessment for most individuals (longer if fraud is suspected). Keep all supporting documents — receipts, slips, and agreements — for at least six years.

Let Swift Accounting File For You

Filing taxes correctly once is worth far more than fixing errors after a CRA review. Swift Accounting prepares T1 returns for Calgary individuals with any level of complexity — from simple employment income to self-employment, rental properties, investments, and multi-year catch-up filings. Book a free consultation and let our tax professionals handle every step.

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Swift Accounting Team
Tax Professionals — Calgary, AB
Our tax professionals specialize in Canadian personal and corporate tax, helping Calgary businesses and individuals navigate CRA requirements, optimize their tax positions, and plan for the future.