What to do next
Check the notice is valid
It must be in the prescribed form, signed, and give the full required notice period before the increase takes effect. Defective notices are common and are frequently set aside, which resets the clock.
Check whether your unit is exempt
Ontario exempts units first occupied after a cut-off date from the guideline; other provinces have their own carve-outs. If you are exempt, the increase may be lawful even if it is large — knowing this early saves a futile dispute.
Respond within the window
In Quebec you have a defined period to refuse the increase in writing, after which the landlord may apply to the TAL to fix the rent. In Ontario an above-guideline increase requires an LTB application you can contest. Either way the period is short — it is stated on the notice.
Prepare evidence for an above-guideline application
These usually rest on capital expenditures or extraordinary cost increases. You can challenge whether the work qualifies, whether it was necessary, and how it was apportioned. Ask for the supporting invoices.
Frequently asked questions
How much can rent legally go up?
Most provinces publish an annual guideline percentage, with above-guideline increases requiring tribunal approval. The figure changes yearly — check your province's current guideline rather than a number you read elsewhere.
My building is new and there's no limit — is that right?
Possibly. Several provinces exempt units first occupied after a cut-off date from rent control. Confirm your unit's status; it determines whether you have a dispute at all.
Can the landlord raise rent twice in a year?
Generally no — there is a minimum interval between increases, typically twelve months. A second increase inside that period is usually invalid.
What if I just don't pay the increase?
If the increase is valid, non-payment is arrears and grounds for eviction. Dispute it through the proper route instead.
This is general information, not legal advice. Laws vary by location and every situation is different — speak with a qualified lawyer about your specific circumstances.