Insights
Dec 8, 2025
Mackisen

MONTREAL CPA FIRM NEAR YOU: BUSINESS EXPENSES YOU CAN DEDUCT (AND THOSE YOU CAN’T)

Introduction to Business Expense Deductions
Understanding which business expenses are deductible is critical for Montreal business owners seeking to reduce their taxable income and optimize cash flow. Deductible expenses are costs incurred to earn business income and are necessary for operations. Misclassification or misunderstanding of these expenses can lead to overpayment of taxes, penalties, or audits. Montreal CPAs provide guidance on eligible deductions, recordkeeping requirements, and tax planning strategies, helping business owners accurately report expenses and maximize financial efficiency while remaining compliant with CRA and Revenu Québec regulations.
Common Deductible Expenses
Many business expenses are straightforward to claim, including rent for office space, salaries and wages, utility bills, office supplies, insurance premiums, and professional fees. Montreal CPAs advise on proper documentation, ensuring receipts, invoices, and contracts support deductions. Proper categorization in accounting systems allows for accurate reporting on T2 or T1 returns. Deductible expenses reduce net taxable income and improve cash flow, giving business owners more resources to reinvest in growth.
Vehicle Expenses and Travel Costs
Expenses related to vehicles used for business purposes are deductible, including fuel, maintenance, insurance, and lease or loan interest. Montreal CPAs assist in determining whether to claim actual costs or mileage rates, keeping accurate logs of business versus personal use. Travel costs, such as hotel accommodations, meals, and transportation for business trips, may also be deductible with proper documentation. Careful planning ensures maximum allowable deductions while maintaining compliance with CRA policies and audit guidelines.
Meals and Entertainment Deductions
Meals and entertainment expenses can be partially deductible when incurred for business purposes, such as client meetings or business development events. Montreal CPAs explain the CRA’s 50% limitation rule and advise on appropriate recordkeeping, including who attended, purpose of the meeting, and receipts. Correctly claiming meals and entertainment can provide tax savings while avoiding potential audit triggers. Understanding the limitations and documentation requirements ensures compliance and accurate expense reporting.
Home Office and Business-Use-of-Home Expenses
For business owners operating from home, a portion of home expenses may be deductible. These include utilities, property taxes, mortgage interest, and maintenance costs, proportionate to the area used for business. Montreal CPAs help calculate the correct allocation and ensure proper documentation, including floor plans and expense records. Claiming these deductions reduces taxable income and can significantly impact net earnings for small or home-based businesses.
Non-Deductible Expenses
Not all expenses are deductible. Personal costs, capital expenses, fines, or penalties are generally not allowed as deductions. Montreal CPAs educate business owners about common non-deductible expenses, preventing misreporting that could trigger audits or penalties. Clear understanding of what cannot be claimed safeguards business finances and supports accurate tax reporting.
Capital Expenses vs Current Expenses
Montreal business owners must differentiate between capital expenses, which are typically depreciated over time, and current expenses, which are fully deductible in the year incurred. Montreal CPAs provide guidance on identifying capital assets, calculating Capital Cost Allowance (CCA), and determining the correct treatment for tax purposes. Accurate classification ensures businesses maximize deductions without violating CRA rules, optimizing both current and long-term tax planning.
Recordkeeping and Documentation Requirements
Maintaining detailed records is critical to support expense deductions. Montreal CPAs recommend organized digital and physical recordkeeping systems, including invoices, receipts, contracts, and proof of payment. Proper documentation protects against audits and reassessments, ensures eligible expenses are fully claimed, and allows businesses to respond efficiently to CRA queries. Recordkeeping also supports better financial management and business decision-making.
Industry-Specific Deduction Strategies
Different industries have unique deductible expenses. For example, construction businesses may deduct subcontractor fees, materials, and equipment rentals, while professional services firms may focus on professional dues, software subscriptions, and client development costs. Montreal CPAs tailor expense strategies to the client’s industry, ensuring all eligible deductions are claimed while complying with CRA and Revenu Québec rules. Industry-specific strategies maximize tax efficiency and support sustainable business growth.
Why Choose Mackisen
Mackisen provides Montreal business owners with expert guidance on understanding and claiming business expenses. Our CPA team ensures proper classification of expenses, maintains accurate documentation, and develops strategies to maximize deductions while staying compliant with CRA regulations. Choosing Mackisen guarantees professional support for tax planning, financial efficiency, and audit preparedness, allowing business owners to focus on growing their business confidently.

