How Canadian Taxpayers Can Claim Eligible Medical Expenses

Medical costs can create a significant burden for Canadian households, but some expenses may qualify for the federal Medical Expense Tax Credit (METC). The credit can reduce tax payable when eligible costs exceed a certain threshold based on income.

The claim is made on your T1 General income tax return. It can include expenses paid for yourself, a spouse or common-law partner, children, and certain other dependants. Provincial and territorial tax credits may also apply, depending on where you live.

The rules are detailed, and an expense that seems medical may not automatically qualify. Keeping proper receipts, checking CRA requirements, and choosing the right claim period can help prevent delays or reassessments.

What the Medical Expense Tax Credit Covers

Eligible costs can include prescription drugs, dental services, vision care, hospital services, prescription eyewear, medical devices, and certain insurance premiums. Payments must generally be made to a recognized medical practitioner, hospital, pharmacy, or other approved provider.

Some less obvious costs may qualify as well. Examples can include transportation for medically necessary treatment, reasonable travel expenses when appropriate care is unavailable nearby, and certain attendant care or renovation costs related to a severe impairment. CRA rules vary according to the type of expense and the person receiving care.

You cannot claim an amount that was reimbursed by an employer, insurer, provincial plan, or another source. If only part of the expense was reimbursed, you may generally claim the portion you paid yourself.

Choosing the Correct 12-Month Period

Medical expenses are claimed for any 12-month period ending in the tax year. The period does not have to match the calendar year. For a 2024 return, for example, you could select a period ending in 2024 that captures the greatest amount of eligible spending.

This flexibility is useful when large costs occurred near the beginning or end of the year. You cannot claim the same expense twice, and the selected period should be used consistently for the medical expense claim on that return.

For expenses paid for a dependant, ensure the person meets CRA’s definition of an eligible dependant. The rules can differ for a child under 18, an adult child, a parent, or another relative who depends on you for support.

How the Tax Credit Is Calculated

The federal medical expense credit generally applies to eligible expenses above the lower of 3% of your net income or the annual threshold set by the CRA. For the 2024 tax year, the maximum threshold is $2,759. The provincial or territorial calculation may use different rates and limits.

A tax credit reduces tax payable; it is not usually a direct refund of the amount spent. The value depends on the applicable federal and provincial rates and your overall tax position.

Claim decision General approach
Expenses for yourself or immediate family Usually reported on line 33099
Expenses for certain other dependants Usually reported on line 33199
Reimbursed expenses Claim only the unreimbursed portion
Selected claim period Any 12-month period ending in the tax year
Supporting documents Keep receipts and prescriptions in your records

In many families, the spouse or common-law partner with the lower net income claims the expenses. This often allows more costs to exceed the 3% threshold, but the best choice depends on each person’s income, tax payable, and other credits.

Family Members and Other Dependants

You can generally claim eligible medical expenses paid for a spouse or common-law partner and dependent children under 18 on line 33099. Medical expenses for certain other dependants, including some adult children or relatives, are generally reported on line 33199.

The dependant must meet the relevant relationship, support, and residency requirements. If more than one person supported the same dependant, family members should coordinate their claims and retain evidence showing who paid each expense.

Medical costs can also intersect with other benefits. Seniors managing retirement income may wish to review related information about CPP earnings rules, while low-income seniors should separately check whether they qualify for the Guaranteed Income Supplement. The medical expense credit does not replace CPP, OAS, GIS, or other income supports.

Records, Receipts, and Common Errors

You do not normally send receipts with an electronically filed tax return, but CRA may request them later. Keep invoices, pharmacy statements, prescriptions, travel records, insurance statements, and proof of payment for at least six years after the end of the relevant tax year.

Common errors include claiming cosmetic procedures without a qualifying medical purpose, including reimbursed costs, using the wrong 12-month period, or claiming expenses paid by someone else. Private health plan premiums may qualify in some circumstances, but employer-paid portions and ineligible insurance costs must be excluded.

A medical practitioner’s certification may be required for certain expenses, such as accessibility renovations, therapy, or attendant care. Check the specific CRA rule before paying for a service or assuming it can be included.

Steps to Prepare a Strong Claim

Before entering your medical expenses, organize the costs by person and date. Separate eligible payments from reimbursements, then compare the totals under different 12-month periods if your expenses were unusually high.

Useful preparation steps include:

Low-income households should also review other support programs alongside tax credits. For example, seniors can check current GIS payment dates, since refundable and non-refundable tax measures affect household planning in different ways.

Review the Return Before Filing

Once the claim is entered, check that the selected period ends in the correct tax year and that each expense appears only once. Review the federal and provincial calculations, especially if you are claiming expenses for an adult dependant or costs related to a disability.

Gather your records before submitting the return and keep them accessible after filing. If your situation involves a large attendant-care claim, travel outside your area, or uncertainty about a dependant’s eligibility, professional tax advice may help.

Use the CRA’s current medical expense guidance and your organized receipts to complete the claim accurately, then submit your return by the applicable filing deadline.