Business tax and compliance basics in Canada

Snapshot

A Canadian business deals with the Canada Revenue Agency through a business number, registers for GST and HST once it crosses the small supplier threshold, and reports income either on a corporate return or a personal return. Keeping clean records in a separate business account makes all of this simpler.

Tax authority: Canada Revenue Agency
GST and HST threshold: 30,000 dollars in taxable revenue
Corporation return: The T2 corporate income tax return
Sole proprietor: Reports on a personal return

Rules and thresholds as of 18 February 2026Last reviewed 18 February 2026

General information, not financial, legal, or tax advice. Verify current terms and eligibility with the provider before applying.

As of 18 February 2026, the tax and compliance basics for a Canadian business start with the Canada Revenue Agency business number, a nine digit identifier that connects your program accounts. A business generally must register for GST and HST once total taxable revenue reaches 30,000 dollars in a single calendar quarter or over four consecutive quarters, and it may register voluntarily below that to claim input tax credits. A corporation files the T2 corporate income tax return and may owe federal and provincial corporate tax, while a sole proprietor reports business income on a personal return. Employers withhold and remit payroll deductions. This is general information, not tax advice, so confirm your own duties with the Canada Revenue Agency or a tax professional.

The building blocks of compliance in Canada

Most of a Canadian business owner duties run through a few pieces: the business number, sales tax registration, income tax filing, and, if there are employees, payroll. Each one has its own rules and deadlines, and they vary by province and by the structure of the business. Treat the points below as an orientation, not a substitute for advice from the Canada Revenue Agency or a qualified professional.

The business number and GST and HST

The Canada Revenue Agency business number ties together your tax accounts. Once total taxable revenue reaches 30,000 dollars in a single calendar quarter or over four consecutive quarters, a business generally must register for GST and HST, charge the applicable rate, and remit it. A smaller business can register voluntarily to claim input tax credits on its purchases. Rates and rules differ by province, so check the current position.

Income tax for corporations and sole proprietors

A corporation is a separate taxpayer that files the T2 corporate income tax return and may owe both federal and provincial corporate income tax. A sole proprietor does not file a separate business return and instead reports business income on a personal return. The right structure has tax and liability effects, so this is an area to discuss with a professional.

Payroll and record keeping

An employer generally opens a payroll program account and withholds income tax, Canada Pension Plan contributions, and Employment Insurance premiums from pay, then remits them on a schedule. Good record keeping underpins all of it, which is one reason a separate business account is useful even where it is not legally required. Confirm current rates and deadlines with the Canada Revenue Agency.

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A clean separate account makes tax filing and record keeping simpler. These providers accept business customers in Canada. Fees and eligibility shown as of 18 February 2026. Confirm current terms with the provider before applying.

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Questions about tax and compliance in Canada

When must a Canadian business register for GST and HST?

A business generally must register for GST and HST once its total taxable revenue reaches 30,000 dollars in a single calendar quarter or over four consecutive quarters. Voluntary registration is allowed below that threshold so the business can claim input tax credits. Confirm your position with the Canada Revenue Agency or a tax professional, as of 18 February 2026.

What is a CRA business number?

The business number is a nine digit identifier from the Canada Revenue Agency that connects your program accounts, such as GST and HST, payroll, and corporate income tax. You can get one when you register your business or when you open a program account. This is general information, so confirm with the Canada Revenue Agency, as of 18 February 2026.

Do Canadian corporations file a separate tax return?

Yes. A corporation files a corporate income tax return, the T2, separately from the personal returns of its owners, and it may owe both federal and provincial corporate tax. A sole proprietor reports business income on a personal return instead. Confirm your filing duties with a tax professional, as of 18 February 2026.

What payroll obligations does a Canadian employer have?

An employer generally opens a payroll program account, withholds income tax, Canada Pension Plan contributions, and Employment Insurance premiums from pay, and remits them to the Canada Revenue Agency on a schedule. Rules and rates change, so confirm the current obligations with the Canada Revenue Agency or a professional, as of 18 February 2026.

Fees, features, and eligibility change and vary by region. This page was last reviewed on 18 February 2026. Confirm current terms with the provider before applying.