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 South Carolina, a month-to-month tenancy is recognized as a form of periodic tenancy where the tenant occupies the property with no definite lease end date and pays rent monthly. Both residential and commercial leases can operate on a month-to-month basis. Under South Carolina law, either the tenant or the landlord can terminate a month-to-month tenancy by providing a written notice of termination, typically 30 days in advance. This notice period allows both parties to make necessary arrangements for the transition. If a tenant continues to stay and pay rent after the expiration of a fixed-term lease without signing a new one, a month-to-month tenancy is often presumed to have been established. The specific rights and obligations for month-to-month tenancies may be further detailed in the South Carolina Residential Landlord and Tenant Act for residential leases, and in the lease agreement or applicable state statutes for commercial leases.