Filing your personal income tax return in Canada can feel overwhelming, especially if it is your first time. But with the right preparation and a clear process to follow, most Canadians can complete their return accurately and on time. This guide walks you through every step for the 2025 tax year, from gathering your slips to receiving your refund.
Mark these dates in your calendar before anything else:
Even if you cannot pay what you owe, file on time to avoid the late-filing penalty on top of interest charges.
The foundation of an accurate return is having all your income documents ready. Employers, financial institutions, and government agencies are required to issue slips by the last day of February. Here is what to look for:
Also collect receipts for RRSP contributions made between March 2 and December 31 of the tax year, as well as contributions made January 1 to March 3, 2025 if you are applying them to 2024.
Before you start entering data, log in to CRA My Account at canada.ca/my-cra-account. The CRA receives copies of most tax slips directly from issuers, so you can verify what is on file and compare it against the physical or electronic copies you received. Go to "Tax information slips (T4 and more)" to see all slips associated with your SIN for the tax year.
If a slip is missing, contact the issuer first. If you cannot get it resolved, the CRA can sometimes provide the details or help you estimate the amount. Do not simply leave income off your return — the CRA will likely catch it and reassess you.
Your total income includes employment income, self-employment net income, rental income, investment income, pension income, EI benefits, and any other amounts. Add up all sources reported on your slips plus any income not captured by a slip (such as tips or rental revenue you received directly).
For self-employed individuals, subtract business expenses from gross business income to arrive at net self-employment income before entering it on your return.
Deductions reduce your taxable income, while credits directly reduce the tax you owe. Here are the most commonly claimed items:
The CRA's NETFILE system allows you to file your return electronically directly from certified software — no paper, no mailing, and faster processing. Popular options for 2025 include:
All certified software must meet CRA standards, so accuracy depends on the information you enter rather than which product you choose. The full list of certified software is available on the CRA website.
Open your chosen software and follow the interview-style questions or forms. Work through these sections in order:
Once the CRA processes your return, you will receive a Notice of Assessment (NOA) — typically within two weeks for electronically filed returns. The NOA confirms the amounts the CRA accepted, shows your RRSP contribution room for the following year, and notes any adjustments the CRA made.
If you are entitled to a refund and have registered for direct deposit through CRA My Account, you can expect funds deposited in as few as eight business days after filing. Paper cheques take considerably longer.
Made a mistake or received a slip after filing? You can request a change using a T1 Adjustment Request (T1-ADJ). The fastest method is through CRA My Account under "Change my return." Alternatively, submit Form T1-ADJ by mail. Do not file a second return for the same year. The CRA will issue a revised NOA if they approve the adjustment.
You generally have up to ten years after the original assessment date to request an adjustment, though the CRA may act more quickly on recent years.
Keep all supporting documents — receipts, slips, statements, and a copy of your filed return — for a minimum of six years from the end of the tax year to which they relate. The CRA can reassess your return within this window and may request supporting documents during an audit or review. Store documents securely, whether physically or as scanned digital copies.
Self-filing works well for straightforward employment income. But if your situation involves rental properties, foreign income, self-employment, capital gains, or a significant life change, the complexity rises quickly — and errors can be costly. The team at Swift Accounting Calgary helps individuals and families across Alberta navigate every type of personal tax situation, ensuring nothing is missed and every available deduction is captured.
Whether you are filing for the first time or dealing with a complicated return, professional guidance pays for itself in accuracy and peace of mind.
Ready to get your return done right? Contact Swift Accounting today to speak with a Calgary tax professional who can handle your personal filing or answer any questions before you file on your own.
For most individuals, the deadline to file your 2024 personal income tax return is April 30, 2025. Self-employed individuals and their spouses have until June 15, 2025 to file, but any balance owing must still be paid by April 30 to avoid interest charges.
You are not legally required to file if you had no income, but filing is almost always beneficial. Filing triggers the GST/HST credit, Canada Child Benefit payments, RRSP contribution room accumulation, and the Canada Carbon Rebate — all based on your filed return. Many refundable credits go unclaimed simply because people do not file.
If you file electronically and are registered for direct deposit, the CRA typically deposits refunds within eight business days of processing your return. Paper-filed returns and paper cheques can take eight weeks or longer. Check CRA My Account or use "Check CRA Processing Times" online for current estimates.
If you owe money and file late, the CRA charges a late-filing penalty of 5% of your balance owing, plus 1% for each complete month the return is late, up to 12 months. Repeat late filers face higher penalties. If you are owed a refund and file late, there is no penalty — but you will simply receive your refund later. Filing as soon as possible, even after the deadline, is always better than continuing to delay.
Our Calgary team handles personal tax, corporate returns, GST/HST, payroll, and bookkeeping.