Arizona Lease Termination Rules

To end a month-to-month tenancy, either party gives written notice 'at least thirty days prior to the periodic rental date' under A.R.S. § 33-1375; week-to-week requires ten days. A tenant who breaks a fixed-term lease early can be liable for rent owed, but the landlord must make reasonable efforts to re-rent and mitigate damages. A.R.S. § 33-1318 allows a victim of domestic violence or sexual assault to terminate early by giving written notice with a mutually agreed release date within 30 days, supported by a protective order or police report, where the incident occurred within the preceding 30 days. Active-duty military rely on the federal Servicemembers Civil Relief Act (50 U.S.C. § 3955), not a state statute.

No specific statutory penalty. A tenant who leaves without proper notice may owe rent through the notice period or remaining lease term, reduced by the landlord's duty to mitigate; improper landlord termination can be challenged in an eviction defense.