Medical expense tax credit calculator
Choose your province, enter the net income of the person claiming and the medical expenses paid. You get the amount you can claim and the federal and provincial credit.
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Working with a different rate? Edit the rates this calculator uses
These are the figures we verified on 2026-10-23. Change them to work with a historic period, or with a new rate that has been announced but which we have not published yet.
How is the medical expense tax credit calculated?
Subtract the lesser of 3% of your net income and a fixed amount ($2,834 federally for 2025) from your eligible medical expenses, then multiply by the credit rate, 14.5% federally for 2025, plus your province's credit. An Ontario resident with $50,000 of net income and $4,000 of expenses can claim $2,500 federally, a credit of $362.50, and gets $126.25 from Ontario, $488.75 in all.
Why we built this calculator
The medical expense credit does not start with your first dollar of expenses. It starts after a threshold that is the smaller of a fixed amount and 3% of your net income, and the fixed amount is different for each province. Someone with a low income can claim from a very small amount, while a higher income needs several thousand dollars of expenses before anything counts.
This calculator applies the federal threshold and your province's, and shows both credits. Medical expenses can be claimed for any 12-month period ending in the tax year. To see the rest of your tax use the income tax calculator, and for related credits the disability tax credit calculator.
It runs in your browser. Nothing you enter is sent anywhere, and there is no sign-up.
When to use it
- Deciding whether your medical costs are worth claiming
- Estimating the credit before you file
- Comparing the credit if a lower-income spouse claims instead
- Seeing how a high income delays the credit
Mistakes it helps you avoid
- Claiming all your expenses instead of the amount above the threshold.
- Using the federal dollar figure for the province.
- Using the wrong 12-month period.
- Forgetting that the credit does not reduce tax below zero.
How the credit is worked out
The threshold comes off first, then the rate applies.
threshold = the lesser of 3% of net income and the fixed amountfederal 2025: $2,834; provincial: the figure on your Form 428claimable amount = eligible medical expenses − threshold, not below zerocredit = claimable amount × credit ratefederal 14.5%, provincial the lowest bracket rate
The CRA's pages for lines 33099 and 33199 give the lesser of 3% of net income and $2,834 for 2025, and the 12-month rule: any 12-month period ending in 2025. The provincial dollar figures and credit rates are read from each province's 2025 Form 428. For 2026 the CRA lists a federal threshold of $2,890 after a 2.0% indexation, but the 2026 provincial forms are not published. The federal credit rate is the lowest federal rate, 14.5% for 2025; the CRA says the rate for most non-refundable credits is the lowest marginal rate, though the medical expense page does not state a rate.
Worked example: Ontario, $50,000 net income, $4,000 of expenses
You live in Ontario with $50,000 of net income and paid $4,000 of eligible medical expenses in a 12-month period ending in 2025.
- 3% of net income$1,500.00
- Threshold: the lesser of $1,500 and $2,834$1,500.00
- Claimable: $4,000 − $1,500$2,500.00
- Federal credit: $2,500 × 14.5%$362.50
- Ontario credit: $2,500 × 5.05%$126.25
- Total credit$488.75
The credit is $488.75, or 12.2% of the $4,000 spent.
At $120,000 of net income the threshold is the full $2,834 federally and $2,885 for Ontario, so $8,000 of expenses earns $1,007.38.
Provincial thresholds and credit rates, 2025
From the medical expenses lines of each CRA 2025 provincial form. Quebec is not covered.
| Province or territory | Fixed amount in the threshold | Credit rate |
|---|---|---|
| Alberta | $2,884 | 8% |
| British Columbia | $2,689 | 5.06% |
| Manitoba | $1,728 | 10.8% |
| New Brunswick | $2,798 | 9.4% |
| Newfoundland and Labrador | $2,410 | 8.7% |
| Northwest Territories | $2,834 | 5.9% |
| Nova Scotia | $1,637 | 8.79% |
| Nunavut | $2,834 | 4% |
| Ontario | $2,885 | 5.05% |
| Prince Edward Island | $1,678 | 9.5% |
| Saskatchewan | $2,681 | 10.5% |
| Yukon | $2,834 | 6.4% |
Terms on this page
- Net income
- Line 23600 of the return, the base for the 3% test.
- Non-refundable credit
- A credit that reduces tax but cannot create a refund by itself.
What has changed, and when
Rates on this page have not always been what they are today. If you are working on an earlier period, use the figure that applied at the time rather than the current one.
- 2025 tax year Federal threshold the lesser of 3% of net income and $2,834; lowest federal rate 14.5%.
- 2026 Federal threshold $2,890 after indexation of 2.0%.
Common questions
What is the medical expense threshold?
The lesser of 3% of your net income and a fixed amount. For the federal credit in 2025 the fixed amount is $2,834; each province has its own figure.
Which 12 months can I claim?
Any 12-month period ending in the tax year, as long as the expenses were not claimed on a previous return.
Who can I claim for?
Yourself, your spouse or common-law partner, and your or your spouse's children under 18 on line 33099. Other dependants go on line 33199.
What is the 2026 federal threshold?
The CRA lists $2,890 for 2026, after a 2.0% inflation adjustment.
Is the credit refundable?
No. It reduces your tax but cannot take it below zero.
Where these numbers come from
- Canada Revenue Agency — Lines 33099 and 33199: eligible medical expenses The lesser of 3% of net income and $2,834 for 2025; the 12-month period.
- Canada Revenue Agency — RC4065 Medical Expenses The same threshold and the definition of a dependant.
- Canada Revenue Agency — Indexation of personal income tax and benefit amounts The 2026 threshold of $2,890; page dated March 12, 2026.
- Canada Revenue Agency — What's new for 2025 The lowest marginal rate of 14.5% for 2025 and the rate for most non-refundable credits.
- Canada Revenue Agency — Alberta Form AB428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — British Columbia Form BC428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — Manitoba Form MB428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — New Brunswick Form NB428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — Newfoundland and Labrador Form NL428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — Northwest Territories Form NT428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — Nova Scotia Form NS428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — Nunavut Form NU428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — Ontario Form ON428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — Prince Edward Island Form PE428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — Saskatchewan Form SK428 (2025) Medical expenses threshold and the non-refundable credit rate.
- Canada Revenue Agency — Yukon Form YT428 (2025) Medical expenses threshold and the non-refundable credit rate.
Last verified 2026-10-23 Rates on this page are checked against the sources above at least once a year, and whenever the governing authority announces a change. Spotted something out of date? Tell us and we will fix it.
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