Filing and paying taxes as a Canadian resident is an inevitable part of life. Putting it off can lead to unwanted consequences down the road, so it helps to get ahead of the deadlines and requirements as early as you can.
You also don't want to file late and owe a larger balance than necessary. Interest, penalties, and fees add up quickly, and late payments can reduce your government benefits — all of which works against goals like getting out of debt or building savings.
The good news is that filing online is faster, and much of it can be done for free. This guide walks you through the basics of filing your taxes online in Canada, including your free options, the documents you'll need, key dates, and how to submit your return.
What are the benefits of filing taxes online?
Filing your taxes online is faster, more accurate, and often free. You can complete the process relatively quickly and receive an almost immediate confirmation that your return has been submitted and accepted.
You can also check the status of your return by telephone, but if you don't file electronically, it can take longer for that information to appear in your account along with related updates.
Online tax software can make the process easier and reduce the chance of errors, helping you get accurate results while claiming everything you're entitled to. There's no need to send in receipts with an online filing unless the CRA requests them later.
Finally, filing online means you'll get your refund faster. With direct deposit, you may receive your refund in as little as two weeks.
Can you file your taxes online for free in Canada?
Yes. Many Canadians with a straightforward tax situation can file their income tax and benefit return online for free. Whether you qualify usually depends on how simple your return is — for example, a single T4, pension income such as old age security or Canada Pension Plan (CPP), student income, or a modest family income.
There are three main ways to file online for free:
Option | Suited for | How it works |
|---|---|---|
| Free NETFILE-certified software | People with simple returns who are comfortable preparing their own taxes | You prepare your return using the software and send it directly to the Canada Revenue Agency (CRA) through NETFILE. |
| SimpleFile Digital or SimpleFile by Phone | Eligible people with a modest or fixed income and a simple tax situation | You answer a short series of questions, and the CRA uses your answers, plus the information it already has, to complete your return. |
| Free tax clinics (CVITP) | People with a modest income and a simple tax situation who want help | A trained volunteer through the Community Volunteer Income Tax Program (CVITP) completes and files your return for you, in person or virtually. |
If your situation is more complex — for instance, self-employment income, rental income, or investment gains — a free option may not cover everything you need, so it's worth checking the eligibility details before you start.
Be aware of key dates
Before you file your taxes, you should be aware of a few key dates.
Filing dates for your 2026 tax return
April 30, 2027: deadline to file your taxes.
June 15, 2027: deadline to file your taxes if you or your spouse or common-law partner are self-employed.
Payment date for your 2026 tax return: tax payments are due April 30, 2027, whether you're self-employed or not.
Prepare supporting documentation
Much of the supporting documentation you'll need to file your taxes online should arrive by the end of February, if not well before. Some tax software will let you enter some information and save your return so you can finish it later.
Income
Here are some common income sources you may need supporting documentation for, and you may have one or more types of income to report:
Employment income. If you're employed, you would normally receive a T4 from your employer.
Employment and self-employment income. This is any income related to employment and self-employment, including commissions and foreign employment income.
Pension and savings plans income. This includes old age security, CPP or Quebec Pension Plan (QPP) benefits, or pensions from other countries.
Investment income. This is income earned through investments like interest, dividends, and capital gains.
Benefit income. This includes benefits such as Employment Insurance (EI) and others you might receive, such as workers' compensation benefits or social assistance payments.
Claim deductions, expenses, and credits
There are many deductions and expenses you can use to reduce your taxable income (and any tax owing as a result). There are also credits that reduce the tax you owe.
Some, called non-refundable credits, can only reduce your taxes to zero. Others, called refundable credits, can actually be refunded to you. Here are some common deductions and credits you may be eligible for:
Deductions
Registered Pension Plan (RPP) (after tax) contributions
Registered Retirement Savings Plan (RRSP) deduction
Deduction for an elected split-pension amount
Union, professional, or like dues
Child care expenses
Disability supports deduction
Allowable business investment loss (ABIL)
Moving expenses
Support payments made
Other employment expenses
Clergy residence deduction
Security options deductions
Capital gains deduction
Northern residents deductions
Carrying charges and interest expenses
Non-refundable credits
Basic personal amount
Age amount
Spouse or common-law partner amount
Amount for an eligible dependant
Canada caregiver credit or amount
Volunteer firefighters' and search and rescue volunteers' amount
Home buyers' amount
Home accessibility expenses
Adoption expenses
Disability amount for self
Disability amount transferred from a dependant
Interest paid on your student loans
Tuition tax credit
Tuition amounts transferred from a child
Eligible medical expenses
Donations and gifts
Provincial or territorial tax credits
Refundable credits
Refundable medical expense supplement
Canada Workers' Benefit
Canada Training Credit
Eligible educator school supply tax credit
Determine how you will file your taxes
Now that you're ready to file your taxes online, you'll need to decide how to complete the process. There are a few different ways to file your provincial or territorial and federal taxes with the CRA. (You may have to follow additional instructions for filing in Quebec.)
To file online, you'll need to use a NETFILE-certified platform. If you also have to file a Quebec tax return, your software will need to be certified by Revenu Québec too.
NETFILE is an electronic tax-filing service that lets you file online and send your income tax and benefit return directly to the CRA.
If you have a CRA account, Auto-fill my return can do a chunk of the typing for you. It pulls in the slips the CRA already has on file — your T4s, T5s, and the rest — so you're reviewing your information instead of entering it. It works with NETFILE-certified software that supports it, and it's worth checking the numbers against your own slips before you file.
It's worth knowing that not all tax software is certified for use in every tax year. So whether you're filing for the current tax year or an earlier one, check this page for a list of NETFILE-certified tax software developers and you can look up which years they're approved for.
Filing your taxes online
Fortunately, there are plenty of ways to file your Canadian taxes for free. If you choose to do it yourself online, once you've gathered your information and chosen your certified tax software, you'll go to the website, mobile app, or desktop version of your provider and create an account by entering the following information:
Name
Social insurance number
Date of birth
Whether or not the return is for someone who has passed away
Preferred language
Home address
Telephone number
You may also receive a prompt to automatically populate some information in your return with Auto-fill my return based on the account information you enter. From there, you'll start entering details about your income, expenses, and deductions, if they aren't already populated.
Submitting your tax filing online
Once you've entered all the required information, you can submit your return by connecting directly to NETFILE through your tax software, which sends your return electronically to the CRA. You should get an immediate confirmation that your return has been received.
From there, you can check the status of your return by phone or through your CRA My Account. Your return should show one of four statuses:
Assessed.
In process (the CRA is assessing your return).
Received (received, but not yet assessed).
Not received (the CRA did not receive your return, or received it but has not yet updated this status).
Before you file: a quick recap
Filing online for free is well within reach for most people with a simple return. Gather your slips and receipts early, check which free option fits your situation, and choose NETFILE-certified software or a free CRA service to send your return securely.
Give yourself a little time before the deadline so you're not rushing, and keep your supporting documents in case the CRA asks to see them later. A few minutes of preparation can make the whole process quicker and less stressful.
