A month-to-month tenancy is a periodic tenancy or lease in which the tenant is given possession of the leased premises with no specific expiration date and agrees to pay the landlord on a monthly basis. A month-to-month tenancy often requires the tenant or the landlord to give the other party 30 days written notice of termination of the lease.

Both residential leases and commercial leases may be month-to-month tenancies. If a residential or commercial tenant remains in the leased premises and continues to pay rent following the expiration of a lease for a longer term, there may be a new month-to-month tenancy created and recognized by law.

In Massachusetts, a month-to-month tenancy, also known as a tenancy at will, is recognized for both residential and commercial properties. This type of tenancy does not have a fixed end date and continues until either the landlord or the tenant decides to terminate the agreement. Typically, either party must provide the other with a 30-day written notice to end the tenancy, although the required notice period may vary depending on the terms of the lease or rental agreement and the frequency of rent payments. If a tenant remains in the property and continues to pay rent after the expiration of a fixed-term lease without signing a new lease, a month-to-month tenancy is often presumed to have been established under Massachusetts law. It's important to note that specific regulations may apply, such as the requirement for landlords to provide proper notice before raising rent or evicting a tenant. Tenants and landlords should consult with an attorney to understand their rights and obligations under a month-to-month tenancy in Massachusetts.