The rules behind these dates

• Month-to-month — 30 days (ORC 5321.17(B)): notice must be given at least 30 days prior to the periodic rental date. That means the tenancy ends on a rent-period start date that is at least 30 full days after the notice — often more than 30 calendar days later.
• Week-to-week — 7 days (ORC 5321.17(A)): notice at least 7 days before the termination date stated in the notice.
• Eviction — 3-day notice (ORC 1923.04): before filing in court, the landlord must serve a written notice to leave. The day of service does not count, and Sundays and Ohio legal holidays do not count toward the 3 days (standard Ohio court time computation, ORC 1.14). Only after the 3 days run out can the landlord file; the court then sets the hearing.
• Rent increases: Ohio law sets no cap and no separate notice statute. A change takes effect on a periodic rental date with the same 30-day notice — during a fixed-term lease, the signed lease controls.

How eviction moves after the 3-day notice

1. Serve the 3-day notice — by certified mail, in person, or by leaving it at the tenant’s usual abode or the premises (ORC 1923.04).
2. Wait out the 3 counted days — service day, Sundays and legal holidays excluded.
3. File in court — the landlord files a forcible entry and detainer complaint in the local municipal or county court (or mayor’s court, where applicable).
4. Hearing — the court sets the date; hearings are commonly held about 1–3 weeks after filing, but this is set by the court, not by formula.

Worked example: why “30 days” can mean 47

Say a tenant (or landlord) gives notice on October 15, 2026 to end a month-to-month tenancy, and rent periods begin on the 1st. The next periodic rental date is November 1 — but that is only 17 days after the notice, short of the 30 days ORC 5321.17(B) requires. The first rent-period start that is at least 30 days out is December 1, 2026, so the tenancy ends December 1 — a full 47 days of notice. Working backwards, the last day to give notice for a December 1 end date was November 1. This is the single most common mistake with Ohio’s 30-day rule: the notice does not end the tenancy 30 days after it is sent, it ends it on the first rent-period start date that is at least 30 days away.

A 3-day eviction notice, counted day by day

Suppose the landlord serves the 3-day notice to leave on Friday, November 6, 2026. The day of service never counts. Saturday, November 7 is counted day one; Sunday, November 8 is skipped — Sundays do not count; Monday, November 9 is day two; Tuesday, November 10 is day three, and the notice period is complete. The landlord still cannot file the next morning, because Wednesday, November 11 is Veterans Day, an Ohio legal holiday when the clerk’s office is closed — so the earliest filing date is Thursday, November 12, 2026. After filing, the court sets the hearing, commonly about 1–3 weeks later. Around weekends and holidays, a “3-day” notice routinely takes a week of calendar time before a case can even be filed.

Notice periods at a glance

• End a month-to-month tenancy: at least 30 days, and the tenancy ends on a periodic rental date (ORC 5321.17(B)).
• End a week-to-week tenancy: at least 7 days before the termination date in the notice (ORC 5321.17(A)) — notice given October 15, 2026 can end the tenancy as early as October 22.
• Raise the rent (month-to-month): no Ohio cap and no separate statute; the increase is a change of terms, so it follows the same 30-day periodic-date rule.
• Eviction for nonpayment or a lease violation: a written 3-day notice to leave must be served before any court filing (ORC 1923.04), counted without the service day, Sundays, or legal holidays.

How to use this calculator

1. Pick your situation — ending a monthly or weekly tenancy, raising rent, or the 3-day eviction notice.
2. Enter the date the notice is given or served. For monthly tenancies, also set the day of the month each rent period begins — usually the day rent is due.
3. Read your timeline — the end date, the full days of notice, and (for evictions) the counted days and earliest court filing date.

Frequently asked questions

How much notice must an Ohio landlord give to end a month-to-month lease? At least 30 days prior to the periodic rental date — the day the rent period begins — under ORC 5321.17(B). The rule binds tenants ending a tenancy the same way it binds landlords, and because the end must fall on a rent-period start date, the actual notice given is often more than 30 calendar days.

How much notice is required for a week-to-week tenancy in Ohio? At least 7 days’ notice before the termination date stated in the notice, under ORC 5321.17(A). There is no periodic-date alignment requirement for weekly tenancies.

What is the 3-day notice in Ohio evictions? Before filing an eviction (forcible entry and detainer) case, ORC 1923.04 requires the landlord to serve a written notice to leave the premises. Service can be by certified mail, in person, or by leaving the notice at the tenant’s usual abode or at the premises. The day of service does not count, and Sundays and Ohio legal holidays do not count toward the 3 days — so the real wait before filing is often five to seven calendar days.

How much notice does an Ohio landlord need for a rent increase? Ohio has no separate rent-increase statute and no statewide rent cap. A rent change is a change in the terms of a month-to-month tenancy, so it is normally made effective on a periodic rental date with at least 30 days’ notice under ORC 5321.17(B). During a fixed-term lease, the lease’s own terms control and rent normally cannot change mid-term.

What happens if the tenant does not leave by the end date? The tenancy ending does not by itself remove anyone. The landlord’s next step is the 3-day notice to leave, then a court filing if the tenant still stays — only a court can order a tenant out. Self-help lockouts and utility shut-offs are illegal in Ohio, and a tenant who holds over may owe damages, which is why the dates above matter to both sides.

Sources

• ORC 5321.17 — Termination of periodic tenancies (codes.ohio.gov)
• ORC 1923.04 — Notice to leave premises (codes.ohio.gov)
• ORC 1.14 — Legal holidays; time computation (codes.ohio.gov)

Not legal advice. This tool computes statutory notice periods from the Ohio Revised Code for general information. Individual leases, local ordinances (some Ohio cities add requirements), and court practice can change the result. For an active dispute, talk to an Ohio landlord-tenant attorney or your local legal aid office.