The amount of notice a landlord is required to give a tenant before increasing the rent varies by location. However, it is standard in many jurisdictions to require a 30-day notice for rent increase. Often the lease dictates specifics about this procedure.
In the case of a 30-day notice to increase the rent, a tenant generally has the option to break the lease and move rather than pay an increased monthly amount. Depending on the amount of rent increase, the notice period may be 60 days rather than 30. Additionally, the lease must generally include language that specifically allows for an increase.