CRA Medical Expense Tax Credit · Lines 33099 & 33199
Stop leaving medical expense credits on the table.
MedExpenseHero tracks your family’s medical expenses year-round, then finds the 12-month claim window and claimant that maximize your CRA credit — something a calendar-year spreadsheet simply can’t see.
Estimates only — not tax advice. Built around CRA guide RC4065.
The rule most Canadians miss
Medical expenses only earn credit above a floor — the lesser of 3% of net income and the CRA’s annual threshold. But you don’t have to claim January to December: the CRA accepts any 12-month period ending in the tax year. A surgery in November and the follow-up bills in February look small in each calendar year — combined in one window, they can clear the floor and earn a real credit. That window-picking is exactly what MedExpenseHero automates.
3%
of net income — the floor your expenses must clear (capped at $2,834 for 2025)
365
possible 12-month windows per tax year — the optimizer checks the ones that matter
2×
claimants compared — you or your spouse, whoever nets the bigger credit
Everything you need from first receipt to filing
The 12-month optimizer
The CRA lets you claim expenses from any 12-month period ending in the tax year — not just January to December. MedExpenseHero searches every valid window and tells you exactly which one maximizes your claim.
Whole-family tracking
Track expenses for yourself, your spouse, children and other dependants. Relationships map automatically to Line 33099 or Line 33199, each with the correct income threshold.
Best-claimant comparison
A medical expense can only be claimed by one spouse — and the lower-income spouse usually nets a bigger credit. The optimizer runs the math for both of you side by side.
CRA-aligned categories
60+ eligible expense types seeded from the CRA's list — prescriptions, dental, vision, travel for treatment, attendant care and more — each with documentation hints. Commonly-confused ineligible items are flagged before they skew your totals.
Reimbursements handled
Enter what insurance covered and only the out-of-pocket difference counts. If a reimbursement was a taxable benefit on your T4, one checkbox makes the full amount eligible again.
Filing-ready exports
One click produces a PDF summary for your records, an itemized CSV for your accountant or tax software, and JSON for anything else — with receipts stored alongside every entry.
How it works
Add your family
Create profiles for your spouse and dependants with their net income — that sets each person's claim threshold.
Log expenses as you pay them
Snap the receipt, pick a category, note any insurance reimbursement. Bulk-import from a spreadsheet if you already track elsewhere.
Let the optimizer pick your window
See the 12-month period and claimant that yield the largest claim, compared against the naive calendar-year approach.
Lock it and export
Lock the period so nothing gets double-claimed, then download the PDF/CSV summary for filing season.
Built for real households
The family optimizer
Two incomes, two kids, two benefit plans that cover some things and not others. Track everyone in one place, net out reimbursements, and let the app decide which spouse should claim.
The caregiver
Supporting a parent with prescriptions, physio and medical travel? Line 33199 dependants get their own profile, their own income threshold, and their own line on your export.
The big-year patient
Surgery, fertility treatment or a new diagnosis often means a burst of expenses spanning two calendar years. The timeline view shows the cluster — and the window that captures all of it.
Frequently asked questions
- What are Lines 33099 and 33199?
- They're the two lines on your federal tax return for the Medical Expense Tax Credit. Line 33099 covers expenses for you, your spouse or common-law partner, and children under 18. Line 33199 covers other dependants — adult children, parents, grandparents, siblings and more — each measured against their own income threshold.
- Why does the 12-month period matter so much?
- Expenses only earn credit above a floor (the lesser of 3% of net income and the CRA's annual threshold — $2,834 for 2025). If a burst of expenses straddles New Year's, splitting it across two calendar years can leave you below the floor twice. One well-chosen 12-month window can capture the whole cluster and clear the floor once.
- Is this tax advice?
- No. MedExpenseHero keeps records and produces estimates using CRA's published rules, but it is not tax advice. Confirm eligibility with the CRA (guide RC4065) or a tax professional before filing.
- What happens to my data?
- Your expenses, family profiles and receipts belong to you. Everything is private to your account, receipts are only retrievable by you, and you can export all of your data at any time as CSV or JSON.
Tax season is easier when the receipts are already sorted.
Start logging expenses today — the optimizer gets smarter with every receipt you add.
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