Corporate Income Tax Calculator for Ecommerce Businesses (2026)

See how much corporation tax your Canadian ecommerce business owes. Enter your revenue, expenses, and province to see your federal and provincial rates in seconds.

Corporate Income Tax Calculator

For all federal and provincial Canadian corporations. Tax rates are determined by the head office location.

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⚠ Please fill in all fields correctly before calculating.

Your Results
Net Profit
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Sales − Expenses
Tax Owing
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Effective rate
After-Tax Income
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Net profit kept
📊 Tax Calculation Breakdown
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If a Canadian corporation is owned more than 50% by a Canadian tax resident or corporation, their tax rate is much lower than if owned by a non-resident person or corporation.
💰 Income Retained After Tax
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— of net profit
How to Pay Your Corporate Tax to CRA
How to Pay Corporate Tax to CRA

Not sure how to remit your corporate tax to the CRA? The video above walks you through the full process, step by step.

Why This Matters

You maybe missing the small business deduction

Most incorporated Canadian ecommerce businesses pay just 12.2% corporate income tax rate on the first $500,000 of profit. A lot of sellers are paying more than they need to.

US sales change your corporation tax calculation

Selling into the US does not mean you stop paying tax in Canada. Getting your corporation tax calculation right means you only pay what you actually owe, not more.

Passive income can increase the income tax rate

Once passive income crosses $50,000 a year, your company income tax rate starts going up. Most ecommerce sellers don’t find out until it’s already happened.

A corporate tax estimate is a starting point, not the full picture.

For incorporated ecommerce businesses selling into the US, there are usually more opportunities to reduce your tax bill than the calculator can show. Our team works with Canadian ecommerce businesses on corporate tax, cross-border structure, and everything in between.

Get Your Free 15-Min Ecommerce Tax Strategy Call

FAQs

If your incorporated ecommerce business qualifies as a CCPC, you pay 9 percent federal tax on the first 500,000 dollars of active income. Add Ontario’s 3.2 percent provincial rate and your total company income tax rate is 12.2 percent. If you go over 500,000 dollars or you do not qualify for the small business deduction, the general rate jumps to 26.5 percent in Ontario.

This corporate income tax calculator Ontario tool gives you a quick estimate of your tax. Just enter your revenue, expenses, province, and ownership details. It automatically applies the right federal and Ontario rates, including the small business deduction if you qualify.

Start with your revenue. Subtract all your deductible business expenses like platform fees, ads, and software. What is left is your taxable income. Then the federal and Ontario rates are applied. If you have US sales, the company income tax computation becomes a bit more complex because of cross-border rules.

Just enter your estimated net income and pick Ontario. The corporation tax checker shows whether you fall under the small business rate or the general rate. It is a good estimate. For anything specific to your ecommerce business, it is best to talk to a CPA.

At 300,000 dollars net income on the small business rate, you pay roughly 36,600 dollars in corporate tax. That is the 12.2 percent combined rate for CCPCs in Ontario. Above 500,000 dollars, the general company income tax rate of 26.5 percent applies to the amount over the limit. Use the how much corporation tax do i pay calculator above to see your exact number.

Ontario charges 3.2 percent for small business CCPCs and 11.5 percent for general corporations. Add the federal rate and you get either 12.2 percent or 26.5 percent total. It all depends on whether your ecommerce business qualifies for the small business deduction.

Shopify fees, transaction fees, advertising, software, app subscriptions, salaries, and home office costs are all deductible. Tracking these properly lowers your taxable income and reduces your corporation tax calculation. Most ecommerce sellers miss at least a few of these.

When you have US customers, the company income tax computation gets more complex. US sales count toward your Canadian taxable income. You may get foreign tax credits, but most corporate tax calculators in Canada do not handle this fully.

Our company income tax calculator is the tool you are using right now. It gives you a fast estimate of your company income tax rate and shows how much tax your ecommerce business might owe based on your numbers.

The small business deduction lowers your federal corporate income tax rate from 15 percent to 9 percent on the first 500,000 dollars of active business income. Most incorporated Canadian ecommerce businesses qualify as long as they are a CCPC. Watch out for passive income. Once it goes over 50,000 dollars a year, your deduction starts to shrink.

When you are incorporated, your ecommerce business pays corporate tax on its profits. You only pay personal tax on the money you take out as salary or dividends. That difference between the corporate rate and your personal rate is where a lot of the tax savings from incorporating come from.

DISCLAIMER: Online Calculator Tools

Please read this disclaimer carefully before using any of the online calculator tools provided by SAL Accounting Professional Corporation.—–

1.No Professional Relationship or Advice

The use of these online calculators does not create an accountant-client, contractual, or other professional relationship between you and SAL Accounting Professional Corporation. The information and estimations generated by these tools are for informational and illustrative purposes only and do not constitute personalized accounting, tax, financial, or legal advice. They are not a substitute for consulting with a qualified tax professional who is familiar with your specific financial situation.

2.Informational Purposes and Accuracy

The calculations are based on simplified inputs (e.g., Sales, Expenses, Province) and generalized tax rules, such as the Canadian small business deduction limit of $500,000 for Corporate Income Tax, and current provincial/territorial sales tax rates.

No Guarantee of Accuracy: SAL Accounting Professional Corporation does not guarantee the accuracy, completeness, or reliability of any results provided by the calculators. Tax laws, rates, and regulations are complex and subject to frequent change. The tools are based on the tax laws applicable at the time they were designed and cannot account for all variables, future legislative changes, or specific rulings that may affect your actual tax liability or financial outcome.

3. User Data Input

You are solely responsible for the information and data you input into the calculators. SAL Accounting Professional Corporation is not responsible for any errors or consequences that arise from inaccurate, incomplete, or incorrectly entered data.

✔ By using these calculators, you acknowledge that you do so at your own risk and that SAL Accounting Professional Corporation does not take any responsibility for decisions taken as a result of any materials or information provided by it.