Free Ontario Landlord & Tenant Calculators
Renting in Ontario comes with rules that are precise but easy to miss: how much rent can legally go up this year, how much notice ends a tenancy, what interest is owed on a deposit, and how long an eviction really takes. Our free Ontario landlord and tenant calculators turn those rules into clear numbers and dates, for both sides of the lease. Everything is based on the current Residential Tenancies Act and the government-set annual rent increase guideline — free to use, private, and with no obligation. Whether you’re a tenant checking a rent increase or a landlord calculating compliant notice, you get a reliable starting point in seconds.
Ontario tenancy law is provincial and detailed, and the Landlord and Tenant Board (LTB)enforces it strictly. A rent increase served the wrong way, a notice with the wrong end date, or a miscalculated deposit interest amount can all cause real problems. These tools are built around the specific RTA rules so your numbers hold up.
What You Can Estimate
Rent Increases & Exemptions
The Rent Increase Guideline Calculator works out the maximum increase allowed under this year’s guideline. But not every unit is covered — the Rent Control Exemption Checker tells you whether your unit is exempt (for example, units first occupied on or after November 15, 2018), and the Above Guideline Increase (AGI) Calculator estimates how a capital-expenditure increase phases in over time.
Deposits, Proration & Move-In Costs
The Last Month’s Rent Interest Calculator works out the annual interest a landlord owes on an LMR deposit, the Prorated Rent Calculator handles partial months at move-in or move-out, and the Move-In Cost Calculator totals the cash needed to move into a new rental. Budgeting a rental search? The Rent Affordability Calculator applies the standard 30% income guideline.
Notices, Evictions & Compensation
The N4 Eviction Timeline Calculator maps the key dates in a non-payment eviction, from notice to a likely LTB hearing window, while the Tenant Notice to Terminate Calculator finds the correct deadline for a tenant to end a tenancy. When a landlord ends a tenancy for their own use or to renovate, the Landlord Compensation Calculator estimates the compensation owed for an N12 or N13 notice.
Built for Both Landlords and Tenants
The same Residential Tenancies Act rules bind both sides of a tenancy, which is exactly why these calculators are useful whether you rent or own. A landlord can confirm a rent increase is compliant and calculate the deposit interest they owe; a tenant can check whether a notice period is valid or estimate how an eviction timeline is likely to unfold. Getting the numbers right up front prevents the costly, avoidable disputes that so often land at the LTB.
- Built on the Residential Tenancies Act — plus the current annual rent increase guideline.
- 100% free and private — no sign-up, no payment, nothing shared.
- For both sides — the same rules apply to landlords and tenants alike.
- Avoid costly mistakes — get notice dates, increases, and deposits right the first time.
When These Rules Don’t Apply
Most residential tenancies in Ontario are covered by the Residential Tenancies Act, but not all. Units first occupied on or after November 15, 2018 are exempt from the rent increase guideline cap (though other RTA rules still apply), and certain housing types — including most social and supportive housing — are governed by different rules entirely. If you’re unsure whether your unit is covered, the Rent Control Exemption Checker is the right place to start.
Preparing for a Landlord and Tenant Board Hearing
If a dispute reaches the Landlord and Tenant Board, preparation is what wins hearings — and the numbers are a big part of that. Whether the issue is rent arrears, an above-guideline increase, deposit interest, or compensation for an N12 or N13, being able to show the Board a clean calculation, backed by the relevant Residential Tenancies Act rule, makes your case far easier to follow and accept. Landlords should confirm that any rent increase or notice was calculated and served correctly, since a technical defect can sink an otherwise valid application. Tenants should check that the amounts being claimed against them are actually correct and that any notice used the right dates. Running the relevant calculator before the hearing — and printing the result — turns a he-said-she-said dispute into a documented one.
An Estimate Is a Starting Point, Not Legal Advice
These calculators are designed to inform, not to replace legal advice. They apply the general RTA rules, but real outcomes can depend on the specific facts, LTB scheduling, and case-by-case circumstances. Use the numbers to plan and to understand your rights. For a contested eviction, a complex dispute, or a matter with high financial stakes, our lawyers can review your situation and help you avoid costly missteps — often starting with a free consultation.
Common Questions
Landlord & Tenant Calculator FAQs
How accurate are these calculators?+
Our calculators apply the current Residential Tenancies Act rules and the government-set annual guideline, but they provide an estimate, not a legally binding number. Actual outcomes can depend on specific facts, LTB scheduling, and case-specific circumstances.
Do these tools apply to all rental units in Ontario?+
Most Ontario residential tenancies are covered by the Residential Tenancies Act, but some exemptions exist — including units first occupied on or after November 15, 2018, which are exempt from the rent increase guideline cap. Certain housing types (like most social housing) are governed by different rules entirely.
Are these tools useful for both landlords and tenants?+
Yes. Whether you're a landlord calculating a compliant rent increase or LMR interest owed, or a tenant checking a notice period or eviction timeline, these tools use the same underlying Residential Tenancies Act rules that apply to both sides.
Do I need a lawyer for a landlord-tenant matter?+
Not always — many straightforward matters can be handled directly with the Landlord and Tenant Board. But for a contested eviction, a complex dispute, or high financial stakes, legal advice can help you understand your rights and avoid costly mistakes.
Are these landlord and tenant calculators free to use?+
Yes. Every calculator on this page is completely free, with no sign-up, no payment, and no obligation. Landlords and tenants alike can estimate rent increases, deposit interest, notice deadlines, and eviction timelines privately.
How much can a landlord raise the rent in Ontario?+
For covered units, rent can generally rise once every 12 months by no more than the province's annual rent increase guideline, and only with proper written notice (usually 90 days). Units first occupied on or after November 15, 2018 are exempt from the guideline cap. The Rent Increase Guideline Calculator does the math.
How much notice do I have to give to end my tenancy?+
A tenant on a month-to-month tenancy generally must give at least 60 days' written notice, ending on the last day of a rental period; fixed-term and other arrangements differ. The Tenant Notice to Terminate Calculator finds the correct end date so your notice is valid.
Does my landlord owe me interest on my deposit?+
Yes. A landlord must pay annual interest on a last month's rent (LMR) deposit at the same rate as the rent increase guideline, and it can be applied to top up the deposit each year. The Last Month's Rent Interest Calculator works out what's owed.
How long does an eviction take in Ontario?+
It depends on the ground and LTB scheduling, but a non-payment (N4) eviction runs from the notice, to filing an L1 application, to a hearing that can be months out, and only a Board order — enforced by the Sheriff — can actually evict a tenant. The N4 Eviction Timeline Calculator maps those stages.
Am I entitled to compensation if my landlord evicts me for their own use?+
Often, yes. For an N12 (landlord/purchaser own use) or N13 (demolition, conversion, or major renovation) eviction, the landlord is generally required to compensate the tenant — typically one month's rent or an offer of another unit. The Landlord Compensation Calculator estimates the amount.
Is my rental unit exempt from rent control?+
Some units are. Most notably, units first occupied for residential purposes on or after November 15, 2018 are exempt from the annual guideline cap, though other Residential Tenancies Act protections still apply. The Rent Control Exemption Checker helps you determine whether your unit is covered.
Can a landlord evict a tenant without an LTB order?+
No. In Ontario, a landlord cannot lawfully evict a tenant on their own — even after serving a notice, they must apply to the Landlord and Tenant Board, get an eviction order, and have it enforced by the Court Enforcement Office (Sheriff). Changing locks or removing belongings without an order is illegal. The N4 Eviction Timeline Calculator shows how the proper process unfolds.
Need Help With a Landlord & Tenant Matter?
Our calculators give you a starting estimate. Our lawyers give you a strategy. Call for a free consultation.
