A rent increase can fit the percentage guideline and still raise a problem with notice or timing. Use the checker to compare the rules that can be assessed from your answers, flag possible issues and identify what needs verification. For most guideline-covered Ontario rentals, the guideline is 2.1% for an increase taking effect in 2026 or 1.9% in 2027, with exceptions. Ordinary increases also require at least 90 days’ proper written notice and 12 months since the tenancy began or the last increase. Check the Ontario rent increase rules and your actual notice before drawing a conclusion.
If you have already paid a disputed increase, look at the Landlord and Tenant Board (LTB) forms and filing guidance promptly. Ontario says a dispute about an improper increase can be brought within 12 months after the amount was first charged. The correct application, starting date and possible remedies depend on the facts; do not wait for a quiz or a Romii signup to check them.
Is your rent increase allowed?
Check selected Ontario rules for your rental, the amount, notice and timing. Flag potential problems and see what needs a closer look.
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Check timing before the percentage
Write down the proposed effective date, the date you received written notice, and either the date your tenancy began or the last rent increase took effect. These answer two different questions: whether at least 90 days of notice were given and whether at least 12 months have passed. A valid percentage does not fix a problem with ordinary notice or timing rules.
Look at the form or agreement named on the notice. An N1, an N2, an N10 agreement or an LTB above-guideline increase order can point to different rules. If you do not know which applies, keep that uncertainty in the check and use the LTB forms page or a qualified Ontario tenancy adviser. Do not infer that a typed letter is automatically a proper form.
Does the guideline cover this unit?
Ontario lists new buildings, additions to existing buildings and most new basement apartments first occupied for residential use after November 15, 2018 as exempt from the percentage guideline. That question is about first residential occupation of the relevant building, addition or unit—not your own move-in date. New units in an existing house have additional conditions, and the landlord may need evidence of the exemption. The Ontario rules page explains those distinctions and other categories, including community housing and care homes.
An exemption from the percentage guideline does not by itself remove the ordinary notice and 12-month spacing questions. An approved above-guideline increase or an N10 agreement may change how the percentage comparison works. If any of these apply or you are unsure, treat a calculator amount only as an illustration, not as the lawful rent.
Compare an ordinary guideline increase
For a simple illustration only, suppose an ordinary guideline-covered unit has $1,000 monthly rent, no applicable exception and a proposed increase effective in 2027. 1.9% of $1,000 is $19, so a guideline-only comparison gives $1,019 a month. The landlord would still need the required notice and timing. The example cannot tell you whether a real notice, unit or agreement complies.
Use the effective year, not the year in which the notice arrived. Confirm the monthly rent on which the proposed increase is based and compare the proposed dollar increase with the relevant guideline only after checking coverage and exceptions. If an amount looks higher, the useful next question is whether there is an LTB order, agreement or other rule that explains it—not whether a quick calculation proves an illegal increase.
If something does not line up
Keep a copy of your notice, lease or rent history privately, note the date the new amount was first charged, and check the official LTB forms and filing route. If the unit's exemption status or the correct form is disputed, the LTB can address that question. A qualified Ontario tenancy professional or community legal clinic can help choose the appropriate process and timing. Do not withhold rent based only on this article or a quiz result.