Canadian Tax Guides

What these Canadian tax guides cover

These guides answer the questions the calculators cannot: which form to fill in, when it is due, who qualifies and what happens if you get it wrong. Each one is written from the CRA, Finance Canada, Revenu Québec or provincial government pages it cites, uses 2026 figures, and links to the calculator that does the arithmetic.

They fall into four groups: getting your pay and withholding right, filing and deadlines, saving and investing, and property and estates.

Pay, withholding and work expenses

If too much or too little tax comes off your paycheque, the fix usually starts with a form. The TD1 guide explains the federal TD1 and its provincial version (TD1ON in Ontario, for example) that tell your employer which credits to apply, and what to claim when you have two jobs. Quebec employees complete the federal TD1 and Revenu Québec's TP-1015.3 instead of a provincial TD1. The T2200 guide covers the employer-signed form you need before deducting home office or other employment expenses.

The marginal tax rate guide shows how much of your next dollar goes in tax in each province, and the average income guide puts your salary in context with Statistics Canada figures. The income splitting guide covers the legal ways couples and families can shift income to a lower-taxed person, and the attribution rules that stop the rest.

Filing, deadlines and benefit payments

The tax deadline guide covers the dates that matter for the 2025 return filed in 2026: NETFILE opened on February 23, 2026, the RRSP deadline was March 2, 2026, most people had to file and pay by April 30, 2026, and the self-employed (and their spouses) had until June 15, 2026 to file, though any balance was still due on April 30. The benefit payment dates guide lists when the Canada child benefit, the Canada Groceries and Essentials Benefit and other federal payments arrive.

Saving, investing and specific credits

The RRSP deadline guide explains the contribution limit (18% of last year's earned income, capped at $33,810 for 2026) and why a contribution made in the first 60 days of the year can be deducted on the previous year's return. The TFSA limit guide covers the $7,000 annual room and how unused room carries forward.

For investors there are guides to the dividend tax credit (why eligible dividends are taxed less than interest), the T5008 slip you receive when you sell securities, and the T1135 form for anyone whose foreign property cost more than $100,000 in total at any time in the year. Two credit guides cover the medical expense tax credit and the home accessibility tax credit, both of which are often missed.

Property, estates and inheritance

Canada has no inheritance tax as such; instead, a person's capital property is treated as disposed of on the date of death, even if nothing is sold, and any tax on the gain is reported on the final return. The inheritance tax guide explains how that deemed disposition works and where provincial probate fees come in. The principal residence exemption guide covers when a home sale is tax-free, the form you must file to claim it, and the property flipping rule, which since 2023 denies the exemption for homes held less than 365 consecutive days.

Where to start if you are new to Canadian tax

If you have just started your first job or moved to Canada, read three guides in this order. The TD1 guide comes first, because the forms you sign on day one decide how much tax comes off every paycheque. The tax deadline guide comes next: Canada taxes on a calendar year, the return for one year is filed in the spring of the next, and you should file even with little or no income, because the Canada child benefit and the Canada Groceries and Essentials Benefit are only paid to people who file. The marginal tax rate guide is the third, so you know what a raise or an RRSP contribution is really worth.

Newcomers should also know that your province for tax purposes is the one you live in on December 31, wherever you lived earlier in the year. Quebec residents deal with two tax authorities, the CRA and Revenu Québec, and file two returns, the federal T1 and the Quebec TP-1. If you still hold investments in another country, read the T1135 guide before your first spring filing season, because the reporting threshold is based on the cost of your foreign property, not its income.

How the guides are researched and updated

Each guide cites only official sources: canada.ca (the CRA, Finance Canada, Employment and Social Development Canada and Statistics Canada), the Justice Laws website for the Income Tax Act, Revenu Québec and Retraite Québec, and provincial government sites. Figures that change every year, such as brackets, credit amounts and contribution limits, are pulled from the same data the calculators use, so a guide and a calculator never disagree.

Each guide shows the date it was last reviewed. Deadlines and dollar amounts are checked each January when the CRA publishes the new year's indexed amounts, and again in July when payroll formulas and benefit years change. If a rule is proposed but not yet law, the guide says so rather than treating it as settled.