Tohme Accounting has been helping business owners in Ottawa and Toronto claim every dollar they are entitled to since 2011. The CRA allows businesses to deduct expenses that are reasonable and incurred to earn income. Most small business owners who work with Samer Tohme, CPA, claim less than they should, not because they are dishonest, but because they do not know what counts. This checklist covers every major category.
Every small business tax deduction in Canada passes through the same CRA test: was the expense reasonable in the circumstances, and was it incurred for business rather than personal reasons? The gray areas, home office, vehicle use, meals, and clothing, are where documentation saves or costs you. CRA auditors want receipts that show the date, vendor, amount, and a clear business purpose. The same test applies whether you file a T2125 as a sole proprietor or a T2 corporate return as an incorporated business.
Online advertising through Google Ads, Meta, and LinkedIn is fully deductible, as are website hosting and design costs, print ads in Canadian publications, signage, and promotional materials. Note that advertising directed at the Canadian market via non-Canadian media is subject to restrictions, so confirm the rules with your accountant. Professional development, meaning courses, conferences, and certifications directly tied to your current business activity, is also fully deductible. Personal skills training that does not connect to your income-earning activities does not qualify.
If you work from home, you can deduct a proportionate share of rent, utilities, internet, insurance, and maintenance using the detailed method: total eligible home expenses multiplied by the percentage of your home used exclusively for business. Self-employed filers use Form T2125; employees of their own corporation use T2200. Mortgage principal and, in most incorporated situations, property taxes are not eligible. The simplified method, at two dollars per day up to five hundred dollars per year, remains available but offers limited value for active business owners with meaningful home costs.
The CRA requires a mileage logbook for every vehicle deduction claim. Each entry must record the date, destination, business purpose, and kilometers driven. Your business-use percentage then determines the claimable share of gas, insurance, maintenance, parking, and lease or loan costs. Leased vehicles are subject to a maximum monthly deductible under the 2026 CRA limits. Owned vehicles fall under Class 10 or Class 10.1 of the Capital Cost Allowance system, depending on their cost. Without a logbook, this deduction will be denied on audit, regardless of how legitimate the use was.
Capital purchases are not deducted in full in the year you buy them. Instead, the CRA assigns them to depreciation classes, and you claim a percentage each year. Common classes include Class 8 at 20% for equipment and office furniture, Class 50 at 55% for computers and electronic devices, and Class 10 at 30% for most vehicles. The half-year rule limits your first-year claim to fifty percent of the normal rate. Canadian-controlled private corporations can use the immediate expensing incentive to deduct up to 1.5 million dollars of eligible property in the year of acquisition.
Business meals with clients, prospects, or partners are deductible at fifty percent of the actual cost. The other fifty percent is a permanent, non-deductible expense under the Income Tax Act, and this limit applies equally to sole proprietors and corporations. Each receipt must record the date, the attendees, their business relationship, and the purpose of the meeting. Long-haul truck drivers are an exception and may claim eighty percent. Club memberships, including golf clubs, fitness centers, and social clubs, are explicitly excluded by the CRA and cannot be deducted under any circumstances.
Wages and salaries paid to employees are fully deductible, including the employer portions of CPP and EI contributions and any health or retirement benefits provided. Subcontractor fees are also fully deductible, but if you pay a single subcontractor more than five hundred dollars in a calendar year, you must issue a T4A slip. Business owners who are also employees of their own corporation should ensure that any salary paid to themselves is reasonable in the circumstances, as the CRA will challenge compensation that appears to be designed solely to reduce corporate taxable income rather than to reflect actual work performed.
Most of the deductions on this list require decisions and documentation built throughout the year, not assembled in a rush at filing time. Tohme Accounting works with incorporated businesses and self-employed professionals in Ottawa and Toronto to confirm that year-round records are in place before the year closes. In practice, the most commonly missed items are home office substantiation, vehicle logbooks that were never started, and immediate expensing eligibility for capital purchases made mid-year. A year-end review with Samer Tohme, CPA identifies what has been captured and what can still be properly claimed before your filing deadline.
Understanding the limits of small business tax deductions in Canada is as important as knowing what qualifies. Personal expenses paid through the business account are never deductible, even if the payment was made using a business card. Capital expenditures must go through CCA rather than being expensed in full. Fines and penalties issued by the CRA or any government body are non-deductible under the Income Tax Act. Club memberships are excluded, as noted above. Life insurance premiums are generally not deductible, though corporate-owned policies held as collateral have a narrow exception. Political donations are handled through the personal tax credit system, not as a business deduction.
Tax deductions for small businesses in Canada follow the same underlying logic regardless of your structure, but the mechanics differ. Sole proprietors and self-employed individuals report income and deductions on Form T2125, attached to their personal T1 return. Incorporated businesses file a T2 corporate return and, if they qualify as a Canadian-controlled private corporation, benefit from the Small Business Deduction, which reduces the federal tax rate to nine percent on active business income up to five hundred thousand dollars. Owners approaching one hundred thousand dollars in annual net income should discuss with a CPA whether incorporation changes their deduction strategy in a meaningful way. For a full breakdown of how the T2 return works, see the complete guide to T2 corporate tax returns in Canada.
Keeping records means more than saving receipts in a shoebox. The CRA requires you to retain all business records for six years from the end of the tax year to which they relate. A compliant receipt must show the vendor name, date, amount, description of the goods or services purchased, and the business purpose, either noted directly on the receipt or recorded in a contemporaneous log. Digital receipts and scanned images are accepted by the CRA, and paper originals are not required as long as the copy is legible. Mileage logs, home office floor plans, and client meeting notes are the three categories auditors request most often.
Small business tax deductions in Canada reduce your taxable income dollar for dollar, but only when you know what qualifies and can prove it. The most expensive mistakes are not fraud. They are missed deductions, undocumented claims that CRA disallows on audit, and capital purchases expensed incorrectly. Tohme Accounting works with incorporated businesses and self-employed professionals in Ottawa and Toronto to make sure no eligible deduction is overlooked year over year. If your situation involves any of the categories covered in this checklist, a free consultation with Samer Tohme, CPA, will confirm what applies to your specific business structure before you file.
Yes, but the process differs from that of a sole proprietor. An incorporated business does not deduct home office expenses directly on the corporate return. Instead, the owner-employee can claim a home office expense allowance, or the corporation can reimburse the owner for documented home office costs and then deduct that reimbursement as a corporate expense. The workspace must still be used regularly and exclusively for business. A signed T2200 from the corporation supports the claim when the owner is also classified as an employee drawing a salary.
Computers, tablets, and most electronic devices fall under CCA Class 50, which carries a rate of 55% per year on a declining balance. In the year of acquisition, the half-year rule applies, meaning only 27.5% is claimable in year one. Canadian-controlled private corporations using the immediate expensing incentive can deduct up to $1.5 million of eligible Class 50 property in the year of purchase, rather than depreciating it over time. Equipment used partially for personal purposes must be prorated to the business-use percentage before claiming.
No. The fifty percent meals and entertainment limit applies equally to corporations and sole proprietors under the Income Tax Act. A corporation deducts fifty percent of qualifying business meal costs, and the remaining fifty percent is a permanent non-deductible amount. The meal must have a genuine business purpose such as a client meeting, a prospect conversation, or a business development discussion. Exceptions are limited: long-haul truck drivers may claim eighty percent, and certain employer-provided meals at the business premises for employees may qualify for full deductibility in specific circumstances.
Yes. The CRA requires supporting documentation for every deduction claimed, and without receipts, a deduction can be fully disallowed during an audit. A compliant receipt must show the vendor name, date, total amount, and nature of the expense. The business purpose should be noted on the receipt or in a contemporaneous log maintained alongside it. The CRA accepts digital receipts and scanned images, so paper originals are not required as long as the digital copy is clear and legible. Records must be kept for six years from the end of the relevant tax year.
A self-employed person reports all business income and deductions on Form T2125, filed with their T1 personal return. Deductible expenses include advertising and marketing, home office costs at the proportionate business share, vehicle expenses based on business-use percentage, accounting and legal fees, office supplies, telephone and internet, business insurance, and professional development directly related to current business activity. Meals and entertainment are deductible at fifty percent. Capital assets such as computers and equipment must be claimed through the Capital Cost Allowance system rather than as a full current-year expense.
The Small Business Deduction is a federal tax rate reduction available to Canadian-controlled private corporations, not a deduction in the traditional sense. It reduces the federal corporate tax rate to 9% on active business income up to $500,000 per year. The deduction is separate from expense claims and operates at the corporate return level through the T2 filing. Access to the full deduction is reduced when a CCPC group earns more than $50,000 in passive investment income. Corporations using the SBD alongside full expense deductions pay significantly less tax than a comparable sole proprietorship with the same income.
