This tool is powered by Nest Mate — manage your Ontario rental properties for free.
Sign upOntario rental tools, built on the Residential Tenancies Act.
Calculate rent increases, track LTB deadlines, model vacancy losses, and screen applicants — all referenced to the RTA, 2006. Use them anonymously.
Free for everyone · No credit card · Runs entirely in your browser
Pick a calculator. Get an answer in under a minute.
Every result references the relevant section of the Residential Tenancies Act, 2006. Nothing you type leaves your browser.
Rent Increase Calculator
Ontario guideline rent increases with N1 notice deadlines.
Open toolLTB Deadline Tracker
N4, N5, N8, N12, N13 notice periods and filing windows.
Open toolVacancy Cost Calculator
See the real cost of leaving a unit vacant while searching.
Open toolLease Risk Simulator
Income-to-rent ratio preview using the Ontario 3× standard.
Open toolT776 Expense Tracker
Add rental income and expenses by CRA category to estimate your T776 net income.
Open toolLTB Form Generator
Generate pre-filled N4, N5, and N12 notices from your active leases.
LMR Interest Calculator
Annual interest owed on last-month-rent deposits, per RTA s.106(6).
In the worksThings people ask first.
Q.01Are the Ontario landlord tools really free?+
Yes. The rent increase calculator, LTB deadline tracker, vacancy cost calculator, and lease risk simulator are free with no sign-up required. The LTB form generator requires a free Nest Mate account because it uses your active leases to pre-fill the notices.
Q.02What is the 2026 Ontario rent increase guideline?+
The 2026 guideline rent increase for most Ontario rental units covered by the Residential Tenancies Act, 2006 is 2.1%. Landlords must serve an N1 notice at least 90 days before the increase takes effect.
Q.03How long after serving an N4 can a landlord file with the LTB?+
For monthly tenancies, the tenant has 14 days from the day after the N4 is served to pay the rent owed in full. If they do not, the landlord may file an L1 application with the Landlord and Tenant Board.
Q.04Do the calculators store any data?+
No. The free tools run entirely in your browser. Nothing you type into the calculators is sent to or stored on Nest Mate servers.
Get the rest of Nest Mate, free for one property.
The calculators are great. The full record — notices, receipts, audit log — is what holds up at the LTB.