Fixed-Term Lease vs Month-to-Month: How Washington Owners Choose

CompareFacts checked November 8, 2026Reviewed by Gary E. Wilson, President and Designated Broker

Why the old trade-off changed

Until May 2021, Washington let either the landlord or the tenant end a month-to-month tenancy with 20 days' written notice, so many owners saw month-to-month as the flexible choice. The 2021 law (HB 1236) changed that, and the 20-day notice now belongs to the tenant. Under RCW 59.18.650, a landlord may not evict a tenant, refuse to continue a tenancy, or end a periodic (month-to-month) tenancy except for the causes listed in the statute, each with its own notice period.

So the choice today is less about how easily you can end a tenancy, and more about predictability: when rent can change, when the tenant can leave, and when you might need the home back. Our post on just-cause eviction in Washington lists the causes and notice periods.

What happens when a fixed term ends

This is the part most owners get wrong. RCW 59.18.650 sorts fixed-term leases into three paths, and the lease wording on day one decides which path you are on:

• A lease that rolls into month-to-month. If the first lease was between six and 12 months and says it continues month-to-month afterward, you may end the tenancy at the end of that first term without cause, but only with at least 60 days' written notice served before the term ends.
• A lease that simply ends. If the first lease was 12 months or more (or the tenant has signed back-to-back terms of six months or more since the start), it never went month-to-month, and you serve at least 60 days' written notice before the end date, the tenancy can be treated as expired at the end of the term.
• Everything else. For other fixed terms, the tenancy becomes month-to-month when the term ends, and from then on you need one of the listed causes to end it.
• A new lease offer. If you offer a new lease with reasonable terms at least 30 days before the current one expires and the tenant stays without signing, that can be a cause. It does not apply once the tenancy is month-to-month.

How rent and rules change under each

Under RCW 59.18.140, you must give at least 90 days' written notice of a rent increase, and an increase cannot take effect before the current term ends. With a 12-month lease, rent is fixed until the end date. With a month-to-month, you can give 90 days' notice at any time, as long as the increase takes effect after the first 12 months and stays within the annual cap.

The statewide rent stabilization law adds limits that apply to both. A landlord may not raise rent during the first 12 months of any tenancy, and later increases are capped each year (RCW 59.18.700). The Department of Commerce publishes the maximum for each calendar year. Our post on rent increases under the new law explains the cap and the required notice form.

The same law limits pricing by lease type. You may not charge more than a 5% difference in rent for the same unit based on whether the lease is month-to-month or fixed-term, and you may not make payment terms or other material conditions more burdensome for one lease type than the other (RCW 59.18.700). New house rules other than rent need 30 days' written notice and take effect at the end of the term unless the tenant agrees sooner (RCW 59.18.140).

How each one affects turnover and your plans

A tenant on a fixed term may end it by giving written notice at least 20 days before the end date (RCW 59.18.650). A month-to-month tenant may leave with written notice of 20 days or more before the end of any rental period (RCW 59.18.200). So month-to-month means a vacancy can come with short warning, in any season.

If you might sell or move back in, the lease type matters even more. Washington allows ending a tenancy so the owner or immediate family can move in, or to sell a single-family home, with at least 90 days' notice. But those reasons cannot end a fixed term early unless you and the tenant agree in writing and the tenant has at least 60 days to move (RCW 59.18.650). A long lease can delay your plans. A lease that ends in a slow rental season can stretch a vacancy.

Move-in money differs a little too. When a tenant asks in writing, a lease of three months or longer lets the tenant pay deposits, nonrefundable fees and last month's rent in three equal monthly installments; shorter or month-to-month tenancies get two (RCW 59.18.610), with some exceptions for smaller move-in charges.

Choosing the lease type

Wilson Management's lease management page notes that twelve months is the common default, and that a longer term buys stability while giving up the ability to reprice. A careful, licensed manager usually decides the lease type with the end date in mind: the season, your plans for the property, and which of the three end-of-term paths the lease creates.

Before you sign, settle these questions in writing:

• When should the term end, and what rental season is that?
• Does the lease roll into month-to-month at the end, or simply end?
• If a 60-day non-renewal notice could apply, who will calendar the deadline?
• Who will calendar the 90-day rent increase notice, and use the state form?
• Could you need to sell or move back in during the term?

Paperwork, local rules and existing tenants

Whatever you choose, the lease should state the term, what happens at the end, and any required disclosures. Our post on Washington lease requirements for 2025 and 2026 covers what goes in the document. Local rules can add more. Seattle's rental agreement rules (SMC 7.24) require 180 days' written notice before housing cost increases and a reasonable renewal offer to fixed-term tenants near the end of the term, unless just cause exists (Seattle SDCI). See Seattle landlord laws for more.

If a tenant is already living in the home, our guide on hiring a property manager with a tenant in place explains how the current lease carries over to a new manager.