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 Alaska, a month-to-month tenancy is recognized for both residential and commercial properties. This type of tenancy does not have a fixed end date and continues until either the tenant or the landlord provides the other with a written notice of termination. Under Alaska law, the notice period required to terminate a month-to-month lease is generally 30 days. This means that either party must give the other at least 30 days' written notice before the desired termination date. If a fixed-term lease expires and the tenant remains in the property with the landlord's consent, and rent continues to be paid, this can lead to the establishment of a month-to-month tenancy. It's important to note that specific rules can vary depending on local ordinances, so it's advisable to consult with an attorney or review local laws for any additional requirements or variations.