Can a Ohio landlord raise rent at any time?
No. A Ohio landlord cannot raise rent during a fixed-term lease (unless the lease itself provides for it). On a month-to-month tenancy or after a fixed term expires, the landlord may raise rent with the required advance written notice. Ohio has no statewide advance notice specific to rent increases. ORC 5321.17 sets 30 days as the month-to-month termination default, treated as the default for rent changes. No state rent cap. Any increase served without the correct notice period, or that exceeds the applicable cap, is void.
Source: ORC 5321.17 (30-day month-to-month termination default)
This is an informational answer based on ORC 5321.17 (30-day month-to-month termination default) as of early 2026. It is not legal advice. Housing law changes year to year and local ordinances (especially in rent-controlled or rent-stabilized cities) can override or add to state law. For contested cases, consult a Ohio-licensed attorney.