If a landlord has the right to increase rent during a fixed-term lease but the lease doesn't specify how much or when the increase will happen, the landlord can only increase the rent after giving the tenant notice for a certain amount of time according to regulations.

If the tenancy runs from year to year, month to month, or week to week, the landlord can only increase the rent if they give the tenant a separate notice of the increase for a certain amount of time according to regulations. The increase also has to be reasonable compared to similar properties in the area.

The landlord cannot increase the rent during the first 12 months of a tenancy agreement unless the landlord and tenant have agreed otherwise. Additionally, the landlord can only increase rent once per 12-month period unless the rent increase has been spread out over a period of time according to regulations.

If a tenant is served a notice, they can apply to a residential tenancies officer within 60 days to have the notice reviewed

If the tenant receives a notice and wants to terminate the tenancy, they can give notice to the landlord before the increase takes effect. The amount of notice required depends on the type of tenancy. This notice must be in writing, include the address of the property, and be signed by the tenant.

NB Residential Tenancy Act s. 11.1