What Is a Month-to-Month Lease and How Does It Work?

A month-to-month lease is a tenancy that renews automatically at the end of each rental period until the landlord or the tenant gives notice to end it. Unlike a 12-month lease, there is no fixed end date. Rent is paid monthly, and the agreement continues rolling forward, often on the same terms, until one side calls it done.

Month-to-month tenancies can be written or verbal, though a written agreement is always safer. The lease still needs the essentials: rent, due date, deposit terms, utilities, pets, and rules. Many landlords start with a one-year lease and let it convert to month-to-month at the end, either automatically or by written agreement, which gives both sides an easy exit without a gap.

The main trade-off is stability. As a landlord you can adjust to changing plans quickly, but you also risk a tenant leaving with short notice. For a tenant, month-to-month means flexibility, but also the possibility of a rent increase or a move notice with little warning.

In Pennsylvania, ending a month-to-month tenancy generally requires 15 days' written notice before the next rental period. The notice rules come from the Pennsylvania Landlord and Tenant Act, and most counties, including Philadelphia, follow that framework. City ordinances can add requirements, so check the local rules that apply to the property.

For the landlord, serve the notice in writing, state the date the tenancy ends, and keep proof of delivery. For the tenant, the same 15-day rule generally applies when they give you notice that they are leaving. A tenant who leaves without proper notice may still owe rent for the period you could not re-let the unit, though Pennsylvania requires landlords to make reasonable efforts to find a replacement tenant.

Notice timing matters. If the tenant gives notice on the 20th of the month, the effective end date depends on when the rental period ends, so count carefully from the next rent due date. When in doubt, give notice earlier than the minimum, not later.

Written Terms Still Matter

A month-to-month tenancy still deserves a written agreement, even a short one. Put the rent, the due date, the deposit, the notice period, and the basic rules on one page, and have the tenant sign. The document converts a rolling, verbal arrangement into a defined contract, and it gives the 15-day notice framework something to attach to.

Revisit the terms whenever the arrangement continues beyond a few months: the rent, the notice period, and the rules can all be updated by signed addendum, keeping the short-term agreement current without turning it into something it is not.

Because the tenancy renews each month, a rent increase usually takes effect at the start of a new rental period, with proper advance notice. Pennsylvania does not have a single statewide number for how much notice a rent increase requires, but a common and practical standard for month-to-month tenancies is one full rental period, typically 30 days. The increase must be stated in writing and cannot take effect in the middle of a period the tenant already paid for.

There is no active rent control in Pennsylvania or Philadelphia, so the market and the lease govern what you can charge. Still, an increase that ignores what comparable units rent for simply drives good tenants away, so price increases against local market data before sending the notice.

If the lease set a fixed rent for a set term and the term has not ended, you generally cannot raise the rent mid-term. The month-to-month conversion after a fixed term is exactly when a rent adjustment becomes available, so send the notice in writing and give the tenant time to agree or plan.

Month-to-month arrangements fit certain situations better than a long lease. They work well when you are unsure about your plans, such as a home you might sell or occupy, a tenant in transition, a short-term work assignment, or a property with ongoing repair or renovation work. They also suit tenants who are relocating, searching for a home to buy, or testing a new neighborhood.

For an investor, month-to-month tenancies mean more turnover and more vacancy risk, so they are usually less desirable for a long-term rental. A fixed-term lease locks in a reliable tenant and predictable income. If the market is soft or your plans are fluid, month-to-month protects you from being locked into a tenant relationship you might want to end.

Whatever you choose, write it down. Convert the arrangement to a written agreement with the rent, notice, and rules stated, so the flexibility does not become a gap in your records.