DeductlyCA

Calculators

Quick numbers
before tax season.

Free calculators for the deductions and credits Canadian businesses use most. No signup. Numbers are estimates. Always check with a qualified accountant.

Find every program you qualify for

Small Business Deduction Calculator

Estimate your federal tax savings from the Small Business Deduction (CCPCs only). Federal rate drops from 15% to 9% on the first $500K of active business income.

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First $500K of qualifying income is eligible. Income above that is taxed at the general 15% federal rate.

Estimated federal tax savings per year

$18K

Provincial SBD typically stacks on top. Real savings often 2x to 3x this number.

Home Office Deduction Calculator

If you use part of your home exclusively for business, deduct a proportional share of rent, utilities, and internet.

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5%20%50%

Use a measuring tape. Common range is 10 to 30 percent.

Annual deductible home office expenses

$7K

Reduces your taxable income. Multiply by your marginal rate for your actual cash savings.

Motor Vehicle Expense Calculator

Deduct the business-use portion of fuel, insurance, maintenance, and lease costs. The CRA requires a mileage log.

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Annual deductible vehicle expenses

$5K

Business use: 39% of total kilometres.

Capital Cost Allowance Calculator

When you buy equipment for your business, you depreciate it over time. The Accelerated Investment Incentive (AII) lets you claim 1.5x in year one for most classes.

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Zero-emission vehicles can be fully deducted in year one up to a cost cap. Other classes depreciate over multiple years.

Year-one deduction

$5K

Class 8, 20% rate, AII eligible

Want the details on each one?

Each calculator above corresponds to a real CRA program. Open the program page for filing instructions, required documents, and eligibility rules.

Deduction
Small Business Deduction
9-12.5% federal rate on the first $500K of active business income.
Deduction
Home Office Expense Deduction
Deduct a portion of utilities, internet, rent, and insurance.
Deduction
Motor Vehicle Expense Deduction
Per-km or actual-cost methods for business vehicle use.
Incentive
Accelerated Investment Incentive
Faster CCA depreciation in the first year for eligible assets.

These are just four of 324 programs.

Take the 3-minute quiz to see every Canadian grant, credit, and deduction your business actually qualifies for.

See my full list