The Utah 15-day notice to vacate is a form served on a tenant in a month-to-month tenancy (without a term end-date) to communicate that they must vacate the rental property within fifteen (15) days. The landlord must serve this notice within at least fifteen (15) days of the next rental period, or the tenant will be permitted to stay for the next month as well. The landlord doesn’t need to provide the tenant with a cause for termination, and they can terminate the agreement at any point. Failure on the tenant’s part to vacate before the end of the notice period will result in them unlawfully detaining the property, and they will be evicted by court order.

Laws – § 78B-6-802(1)(b)(i)