Seattle Rent Increase Notice Rules for Owners (2026)

A Seattle rent increase in 2026 must clear three layers of law, and you have to satisfy all three. Statewide, RCW 59.18.700 bans any increase during the first 12 months of a tenancy and caps later increases at 7 percent plus CPI or 10 percent, whichever is less. State law also sets a 90 day notice floor.

Seattle goes further. A Seattle rent increase notice must give at least 180 days advance written notice, and increases of 10 percent or more can trigger relocation assistance for income qualified tenants who move.

The rules governing a Seattle rent increase changed dramatically between 2021 and 2025. The state added a rent cap. Seattle tripled its notice period. And a city program now puts real money on the line when an increase reaches double digits.

This guide walks through each layer, then gives you a step by step timeline you can follow for a fully compliant increase.

The Three Layers of Law Behind Every Seattle Rent Increase

Three separate bodies of law apply at the same time, and you must satisfy all of them. Meeting the state rule does not excuse you from the city rule, and vice versa.

• Layer 1: the statewide rent cap. RCW 59.18.700 limits how much you can raise rent and bans increases entirely in the first year of a tenancy.
• Layer 2: the statewide notice floor. RCW 59.18.140 requires at least 90 days written notice for any rent increase, anywhere in Washington.
• Layer 3: Seattle's stricter notice rule. Seattle Municipal Code Chapter 7.24 requires at least 180 days written notice, plus city specific language in the notice itself.

On top of those three, Seattle's Economic Displacement Relocation Assistance program (EDRA) adds a financial consequence when an increase reaches 10 percent or more.

Layer 1: The Statewide Rent Cap (RCW 59.18.700)

Washington's 2025 rent stabilization law applies to nearly all residential tenancies in the state, including Seattle, and remains in effect through 2040 unless the legislature acts sooner. The core rules:

• No increase in the first 12 months. You cannot raise rent at all during the first 12 months after a tenancy begins, regardless of whether the tenancy is month-to-month or fixed term.
• A cap in every later 12 month period. Within any 12 month period, total increases are capped at 7 percent plus the Seattle area consumer price index, or 10 percent, whichever is less.
• Commerce publishes the exact number. The Washington State Department of Commerce calculates and publishes the maximum allowable annual increase each year. Check the current published figure before you set a new rent; do not estimate CPI yourself.
• A 5 percent parity rule. The rent you charge for a month-to-month tenancy may not exceed the rent for a comparable fixed term tenancy by more than 5 percent. You cannot use a steep month-to-month premium to push tenants into leases.

The cap follows the tenancy, not the unit. That distinction drives the vacancy reset, covered below.

Layer 2: The 90 Day Floor and the Required Notice Form

RCW 59.18.140(3) requires a minimum of 90 days written notice before any rent increase takes effect, statewide. Two refinements matter:

• Subsidized tenancies are different. For tenancies where the rent is based on the tenant's income, such as certain subsidized housing, the minimum is 30 days.
• Timing must respect the lease. An increase can take effect only at the completion of the lease term. You cannot raise rent mid lease, no matter how much notice you give.

The state also dictates what the notice looks like. RCW 59.18.720 contains a required form, written into the statute itself, and your notice must follow it. The form requires:

• The tenant's name and the rental address
• The percentage of the increase, the new monthly rent amount, and the effective date
• A statement of the statewide limit: rent may rise once every 12 months by up to 7 percent plus CPI or 10 percent, whichever is less
• If you claim an exemption from the cap, a checked box identifying which exemption and the facts that support it

Service matters too. The notice must be delivered in accordance with RCW 59.12.040, which generally means personal delivery or posting plus mailing. A notice that is properly written but improperly served is still defective.

Seattle Rent Increase Notice: The 180 Day Rule

Inside Seattle city limits, the 90 day floor is not enough. Under Seattle Municipal Code Chapter 7.24, every housing cost increase requires a minimum of 180 days advance written notice. This has been the rule since November 2021, and it applies to increases of any size, even a small one.

Seattle adds requirements beyond the longer clock:

• City language is mandatory. The notice must follow the state required format and must also tell tenants how to contact the City for information about renter rights, including the Renting in Seattle helpline at (206) 684-5700. Per the City, a notice that omits this information cannot be enforced in Seattle.
• Delivery is specific. Serve the notice by personal delivery, or by both posting it at the property and mailing it by first class mail.
• Timing aligns with the rental period. The increase must coincide with the beginning of a rental period, and for fixed term leases it still cannot take effect before the lease term ends.

In Seattle, start your renewal planning at least six months before the date you want a new rent to take effect. Owners who wait until the 90 day mark, which works elsewhere in Washington, have already missed the window in Seattle.

EDRA: When a Seattle Rent Increase Triggers Relocation Assistance

Seattle's Economic Displacement Relocation Assistance program, codified at SMC Chapter 22.212, applies to housing cost increase notices issued on or after July 1, 2022. It works like this:

• The trigger is 10 percent. If a housing cost increase equals or exceeds 10 percent within the same 12 month period, whether through a single increase or several that add up, EDRA applies. Housing costs include rent plus other recurring charges, so fee changes can count toward the threshold.
• You must attach an EDRA notice. When the trigger is met, the City's EDRA notice must accompany your rent increase notice.
• Income qualified tenants who move can claim assistance. Tenant households earning 80 percent or less of area median income who vacate, or give notice to vacate, before the increase takes effect can apply to the City. For reference, the City's published 2025 threshold for a one person household was $84,850, with higher thresholds for larger households.
• The City pays first, then bills you. The Seattle Department of Construction and Inspections processes applications and advances eligible tenants three times their current monthly housing cost. The City then notifies the landlord, who must reimburse the City for those funds. Both sides have access to an appeal process.
• The application window is long. Tenants can apply within 180 days after receiving the EDRA notice or up to 60 days after the increase takes effect, whichever is later.

Under the statewide cap, a 10 percent increase is only possible in years when the published maximum reaches 10 percent, or where an exemption applies. But cumulative increases and added charges can still reach the EDRA threshold. Run the 12 month math before every notice.

A Compliant Seattle Rent Increase Timeline, Step by Step

Work backward from the date you want the new rent to take effect. Here is the sequence we follow.

• Step 1, confirm tenancy age. Verify the tenancy will be past its first 12 months on the effective date. If not, no increase is allowed.
• Step 2, check the current cap. Look up the Department of Commerce's published maximum for the year. Your increase, combined with any other increases in the trailing 12 months, must stay at or under it unless you qualify for an exemption.
• Step 3, run the EDRA math. Total all housing cost increases within the same 12 month period. If the total reaches 10 percent or more, plan to attach the City's EDRA notice and budget for possible reimbursement of three months of housing costs.
• Step 4, check parity. If you offer both month-to-month and fixed term pricing, confirm the gap is 5 percent or less.
• Step 5, pick a lawful effective date. At least 180 days out, at the start of a rental period, and not before the current lease term ends.
• Step 6, prepare the notice. Use the RCW 59.18.720 statutory form. State the percentage, new amount, and effective date. If claiming a cap exemption, check the box and state the supporting facts. Add the required Renting in Seattle helpline language.
• Step 7, attach the EDRA notice if triggered. The City publishes the form, including translated versions.
• Step 8, serve it correctly. Personal delivery, or post at the property and mail first class. Document the date and method.
• Step 9, calendar and keep records. Save a copy of the notice, proof of service, and your cap and EDRA calculations in the tenant file.

Our guide to Washington lease renewal and rent increase notices covers the statewide mechanics in more depth.

Exemptions, the Vacancy Reset, and Penalties

Exemptions from the cap. RCW 59.18.710 exempts several categories from the rent cap, though Seattle's 180 day notice rule still applies. The main exemptions:

• Units whose first certificate of occupancy was issued 12 or fewer years ago
• Public or nonprofit affordable housing
• Owner occupied homes where the tenant shares a kitchen or bathroom with the owner
• Owner occupied single family properties renting out no more than two units or bedrooms, including an ADU or DADU
• Owner occupied duplexes, triplexes, and fourplexes where the owner lives in one unit

Two cautions. First, these exemptions are unavailable if the owner is a real estate investment trust, a corporation, or an LLC with a corporate member. Second, if you claim an exemption, your notice must state the facts supporting it.

The vacancy reset. The cap limits increases within a tenancy. When a tenant moves out, you may set the rent for the next tenancy at whatever the market supports. The clock then restarts: the new tenant's rent is locked for their first 12 months, and the cap governs every 12 month period after that. Turnover is the only point where rent can fully catch up to market.

Penalties for getting it wrong. The costs of a defective increase are concrete:

• Under RCW 59.18.700, a tenant facing an unlawful increase can recover the excess rent paid, damages of up to three months of rent, and attorney fees and costs. The tenant may also terminate the tenancy with 20 days written notice.
• In Seattle, a notice that lacks the required city language cannot be enforced, which means the increase simply does not take effect and the clock starts over.
• If EDRA applied and a qualified tenant moves, you reimburse the City three times the monthly housing cost.

A botched notice in Seattle does not just delay revenue by a few weeks; with a 180 day clock, one defective notice can push an increase back the better part of a year. Staying current on these overlapping rules is a core part of Washington lease compliance, and it is one of the strongest arguments for professional Seattle property management support.

Frequently Asked Questions

How much notice is required for a Seattle rent increase notice in 2026?

At least 180 days written notice under Seattle Municipal Code Chapter 7.24, for an increase of any amount. The notice must follow the state's statutory form, include the City's renter rights helpline language, take effect at the start of a rental period, and not take effect before the current lease term ends.

How much can I raise rent in Seattle in 2026?

Statewide law caps increases within any 12 month period at 7 percent plus the Seattle area CPI or 10 percent, whichever is less, and the Department of Commerce publishes the exact allowable figure each year. No increase is allowed during the first 12 months of a tenancy. Some properties qualify for exemptions under RCW 59.18.710.

What is EDRA and when does it apply?

Economic Displacement Relocation Assistance is a Seattle program for housing cost increases of 10 percent or more within a 12 month period. Income qualified tenants who move before the increase takes effect can receive three times their monthly housing cost from the City, and the City then requires the landlord to reimburse it.

Does the rent cap reset when a tenant moves out?

Yes. The cap applies within a tenancy, so when a unit turns over you may set the new rent at market for the incoming tenant. The first year freeze and the annual cap then apply to the new tenancy.

Can I raise rent in the middle of a lease?

No. Under RCW 59.18.140, a rent increase can take effect only at the completion of the lease term, and Seattle additionally requires the increase to coincide with the beginning of a rental period.

This article is general information, not legal advice. Rent regulations change; confirm current requirements with the City of Seattle, the Department of Commerce, or your attorney before serving a notice.

How Sagareus Handles Rent Collection and Accounting

Collection is empathy with boundaries, run through a consistent, documented process. A consistent due date, automatic reminders, and the same follow-up keep collections high and keep you defensible. When a resident falls behind, we move quickly and humanely, but the help is finite by design:

• One late fee waived, as a one-time courtesy. Life happens once. We extend the grace, then the policy is the policy.
• One payment plan, offered once. A realistic plan to get caught up without losing the home.
• A default ends the runway. From there it is pay in full, a mutual move-out, or the lawful eviction process. There is no second plan.

That firmness protects the resident too. Endless extensions only bury someone in a debt they will never clear; a clean exit early is far kinder than a judgment later. Every step is documented, your funds are kept separate from operating money and fully accounted for, and you receive clean monthly statements.

You see the numbers. We hold the line, fairly and on the record.

Related Sagareus Services:

• Professional Leasing Services
• Tenant Screening Services