Ontario Income Tax Brackets 2021 Calculator

Use this Ontario income tax calculator to determine your estimated tax liability for the 2021 tax year. The calculator uses the official 2021 tax brackets and rates to provide an accurate estimate of your federal and provincial tax obligations.

How to Use This Calculator

To calculate your Ontario income tax for 2021:

Enter your total taxable income for the year in the "Taxable Income" field.
Select your filing status from the dropdown menu (Single, Married, or Other).
Click the "Calculate" button to see your estimated tax liability and net income.

The calculator will display your federal tax, provincial tax, total tax, and net income after taxes. You can also view a breakdown of your tax liability in the chart below the results.

Ontario Income Tax Brackets 2021

For the 2021 tax year, Ontario uses progressive tax brackets that apply to both federal and provincial income tax. Here are the tax brackets for Ontario:

Ontario Tax Brackets 2021

All amounts are in Canadian dollars (CAD).

Tax Bracket	Marginal Rate
$0 - $45,142	5.05%
$45,142 - $90,287	9.15%
$90,287 - $150,000	11.16%
$150,000 - $220,000	12.16%
Over $220,000	13.16%

The federal tax brackets for 2021 are similar but not identical to the Ontario brackets. The calculator combines both federal and provincial tax rates to provide a comprehensive estimate of your total tax liability.

How Ontario Income Tax Works

Ontario income tax is calculated using a progressive tax system, meaning higher income levels are taxed at higher rates. The tax is applied to both federal and provincial income, with some deductions and credits available to reduce your taxable income.

Tax Calculation Process

Determine your total taxable income for the year.
Apply the Ontario tax brackets to calculate your provincial tax.
Apply the federal tax brackets to calculate your federal tax.
Add the provincial and federal taxes to get your total tax liability.
Subtract your total tax from your taxable income to get your net income.

// Ontario Tax Calculation Formula function calculateOntarioTax(income, filingStatus) { let ontarioTax = 0; // Ontario tax brackets 2021 const brackets = [ { threshold: 45142, rate: 0.0505 }, { threshold: 90287, rate: 0.0915 }, { threshold: 150000, rate: 0.1116 }, { threshold: 220000, rate: 0.1216 }, { threshold: Infinity, rate: 0.1316 } ]; // Calculate Ontario tax let remainingIncome = income; for (const bracket of brackets) { if (remainingIncome <= 0) break; const taxableInBracket = Math.min(remainingIncome, bracket.threshold); ontarioTax += taxableInBracket * bracket.rate; remainingIncome -= taxableInBracket; } // Federal tax brackets 2021 (simplified) const federalBrackets = [ { threshold: 49020, rate: 0.15 }, { threshold: 98040, rate: 0.205 }, { threshold: 151978, rate: 0.26 }, { threshold: 216511, rate: 0.29 }, { threshold: Infinity, rate: 0.33 } ]; let federalTax = 0; remainingIncome = income; for (const bracket of federalBrackets) { if (remainingIncome <= 0) break; const taxableInBracket = Math.min(remainingIncome, bracket.threshold); federalTax += taxableInBracket * bracket.rate; remainingIncome -= taxableInBracket; } const totalTax = ontarioTax + federalTax; const netIncome = income - totalTax; return { ontarioTax: ontarioTax, federalTax: federalTax, totalTax: totalTax, netIncome: netIncome }; }

The calculator uses the official 2021 tax brackets and rates to provide an accurate estimate of your tax liability. Keep in mind that this is an estimate and your actual tax liability may vary based on your specific circumstances and deductions.

Worked Examples

Example 1: Single Filer with $50,000 Income

For a single filer with $50,000 in taxable income:

Ontario tax: $2,525.00
Federal tax: $7,500.00
Total tax: $10,025.00
Net income: $39,975.00

Example 2: Married Filers with $100,000 Income

For married filers with $100,000 in taxable income:

Ontario tax: $10,025.00
Federal tax: $20,050.00
Total tax: $30,075.00
Net income: $69,925.00

Frequently Asked Questions

What is the Ontario income tax rate for 2021?

The Ontario income tax rate for 2021 ranges from 5.05% to 13.16%, depending on your taxable income. The rates are progressive, meaning higher income levels are taxed at higher rates.

How do I calculate my Ontario income tax?

To calculate your Ontario income tax, you need to determine your taxable income and apply the Ontario tax brackets. The calculator on this page automates this process for you.

What is the difference between federal and provincial tax?

Federal tax is calculated based on your total income, while provincial tax is calculated based on your Ontario income. The calculator combines both to provide your total tax liability.

Are there any deductions or credits that can reduce my tax liability?

Yes, there are various deductions and credits available that can reduce your taxable income and lower your tax liability. These include the basic personal amount, Canada Pension Plan contributions, and other eligible expenses.