Every year, thousands of Canadians miss out on valuable tax deductions simply because they don’t know they exist. Whether you file your own return or use a professional, understanding what you can claim helps ensure you’re not leaving money on the table. Here are ten of the most commonly overlooked deductions you should know before filing your next return.
Medical Expenses
Many Canadians claim basic medical costs but forget expenses like dental work, eye exams, prescriptions, travel for medical treatment, and health plan premiums not covered by an employer. You can claim eligible medical expenses for yourself, your spouse or common-law partner, and your dependants.
Moving Expenses
If you moved at least 40 kilometres closer to a new job, business location, or post-secondary school, you may be eligible to deduct moving expenses. This includes transportation, storage, temporary accommodation, and even realtor fees.
Childcare Expenses
Parents can claim the cost of daycare, babysitters, and day camps that allow them to work or attend school. Typically, the lower-earning spouse claims this deduction, but exceptions may apply.
Tuition and Education Amounts
Students can claim eligible tuition fees from recognized institutions in Canada or abroad. If you don’t need the credit this year, you can transfer up to $5,000 to a parent, spouse, or grandparent.
Union and Professional Dues
Membership dues for unions or professional organizations (such as CPA, nursing, or engineering associations) are fully deductible if they’re required for your employment.
Home Office Expenses
If you work from home, you may qualify to claim a portion of household expenses like utilities, internet, and rent. The CRA continues to allow reasonable claims for employees and self-employed individuals who use part of their home for work.
Charitable Donations
Donations to registered Canadian charities qualify for a non-refundable tax credit. Combine donations with your spouse to maximize your claim, since higher amounts earn a bigger credit rate.
Interest on Student Loans
You can claim the interest paid on eligible government student loans. This credit can be carried forward for up to five years if you don’t need it right away.
Employment Expenses
Certain employees—such as commission-based workers—can deduct expenses like vehicle costs, home office expenses, and supplies if required by their job. You’ll need a signed T2200 form from your employer.
First-Time Home Buyers’ Amount
If you bought your first home in 2025, you might qualify for a $10,000 non-refundable credit, offering up to $1,500 in federal tax savings.
Tax season can feel overwhelming, but taking time to review all eligible deductions can make a big difference. Even small claims add up, helping you reduce your taxable income and keep more of what you earn.
Written by TheAccru Tax Team — simplifying Canadian taxes for individuals and families.
