Short-Term Rental Taxes in Toronto: MAT, GST/HST, and the CRA Rule That Changed Everything

Toronto requires operators to collect MAT on every stay under 28 nights — 8.5 per cent as of mid-2026 — and remit it quarterly, within 30 days of quarter-end. Some platforms collect and remit on the operator's behalf; some arrangements leave it with you. The registration and the filing obligation are yours either way, so confirm what your platform actually remits rather than assuming.

Other GTA municipalities differ: rates, and whether an MAT applies to short-term rentals at all, vary city by city and change with council votes. If you operate outside Toronto, verify locally.

Short-term accommodation is a taxable supply. If your gross revenue from short-term rentals and other taxable supplies exceeds $30,000 over four consecutive calendar quarters — or in any single quarter — you must register for GST/HST and charge it (13 per cent HST in Ontario). Below that, you are a small supplier and registration is optional, though voluntary registration can make sense to recover input tax credits on your costs.

Two wrinkles are worth your accountant's time. First, platform marketplace rules mean the platform sometimes collects GST/HST on behalf of unregistered hosts — worth confirming rather than assuming, in either direction. Second, a property used primarily for short-term rental can change its GST/HST character as real estate, which has consequences on sale or on switching the unit to long-term use. That second one has surprised owners expensively.

Rental income is taxable, and the ordinary expenses of earning it — cleaning, supplies, platform fees, insurance, a reasonable share of utilities and interest — are ordinarily deductible. Since January 1, 2024, that word 'ordinarily' carries weight: federal rules deny all expense deductions for a non-compliant short-term rental, meaning one operating where local rules don't permit it, or without the registrations and licences those rules require. Partial-year non-compliance prorates the denial by the day.

Read that against the GTA bylaw map and the implication is blunt. An unregistered Toronto listing, or a nightly rental in a municipality that doesn't permit one, is now taxed on gross revenue. The bylaw fine was always a risk; the deduction denial is a certainty that arrives with your tax return. Compliance stopped being a legal nicety and became the difference between taxable profit and taxable revenue.

All three layers run on the same fuel: records. Nightly folios and MAT remittances for the city. Revenue tracking against the $30,000 threshold for GST/HST. Expense documentation and proof of registration for the CRA. Municipalities like Mississauga make three-year record-keeping an explicit licence condition; the CRA's expectations are longer. The operators who keep clean books spend filing season filing. The ones who don't spend it reconstructing.

Owner reporting that holds up at tax time is part of what professional management is for — every Manage Mode owner gets clean monthly statements their accountant can actually use. If untangling the tax posture of your property is the blocker, the free assessment is a sensible first step.