Washington Rent Late Fees: The Legal Limit and What a Fee Costs

Washington does not cap the amount of a late fee. It regulates the timing instead: no fixed statutory percentage, but a mandatory 5-day grace period applies before any late fee. A 5-day grace period applies first. Source: RCW 59.18.170, verified June 13, 2026.

Last updated: September 2026

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The short answer: Washington does not cap the amount of a late fee. It regulates the timing instead: no fixed statutory percentage, but a mandatory 5-day grace period applies before any late fee. A late fee may not be assessed until the 5-day grace period has run. The governing provision is RCW 59.18.170, verified June 13, 2026.

Washington regulates the timing rather than the amount: no late fee may be charged until rent is 5 days past due.

What the Washington Statute Sets

Statutory ceilingNo statutory percentage cap; 5-day grace required
Grace period5 days
StatuteRCW 59.18.170
VerifiedJune 13, 2026
Applies toResidential tenancies. Commercial leases in Washington carry no comparable statutory cap — the fee is whatever the parties negotiated.

Laws change. The figure above reflects the statute as read on June 13, 2026, and the link goes to the official text so the current version can be checked directly.

Washington Late Fee Calculator

Pre-filled with Washington's 5-day grace period. Adjust the numbers to match the lease.

$

Your base monthly rent

$

The one-time fee charged when rent is late (enter 0 if the lease only charges a daily fee)

$

Any per-day charge that accrues while rent stays unpaid (enter 0 if none)

days

How many days past the due date rent is paid

days

Days after the due date before a fee applies, if the lease has one (enter 0 if none)

Total Late Charge

Share of One Month's Rent

Cost If It Recurred Monthly

Days Subject to Daily Fee

Enter your numbers to see results.

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What a Fee at the Washington Ceiling Costs

The statutory ceiling is a percentage or dollar figure, which makes it abstract until it meets a real rent number. Here is what the ceiling works out to across common rent levels in Washington, and what the same charge would total if it recurred every month for a year.

Monthly rentStatutory ceiling on the feeWhat that represents
$1,000No fee permitted until rent is 30 days overdue
$1,500No fee permitted until rent is 30 days overdue
$2,000No fee permitted until rent is 30 days overdue
$2,500No fee permitted until rent is 30 days overdue

The right-hand column is the figure that tends to surprise people. A late fee reads as a one-time nuisance, but a charge that repeats monthly is a recurring cost on the order of a rent increase.

When There Is No Written Lease

Month-to-month and handshake tenancies are common in Washington, and they raise a question the statute books answer indirectly: a late fee is a contract term, and an oral tenancy still has terms. Where a state sets a statutory ceiling, that ceiling is a feature of the landlord-tenant statute rather than of the individual lease, so it does not disappear merely because nothing was signed. What does disappear is the evidence of what was agreed.

Three things tend to matter in that situation. The first is whether the fee was ever communicated at all before it was charged. The second is whether rent has been paid late before without a fee being assessed, since a consistent past practice is itself evidence of what the parties understood the arrangement to be. The third is the record of payment dates — bank transfers, money order stubs, text messages acknowledging receipt — which establishes when rent actually arrived rather than when it was recorded.

How Washington Compares to Neighboring States

Late fee rules change sharply at state lines, which matters for anyone comparing rentals across a metro area that spans two states.

StateStatutory late fee limitGrace periodSource
OregonFlat 5% of rent, or a daily charge ≤ 6% of that flat fee4 days (a fee may apply from day 5)Or. Rev. Stat. § 90.260
IdahoNo statutory capNone set by statuteSet by the lease
CaliforniaNo statutory capNone set by statuteSet by the lease

The full picture across all 51 jurisdictions is on the late fees by state index.

Common Questions About Washington Late Fees

What is the maximum late fee a landlord can charge in Washington?

Washington sets the ceiling at no fixed statutory percentage, but a mandatory 5-day grace period applies before any late fee under RCW 59.18.170, verified as of June 13, 2026. A 5-day grace period applies before a fee may be assessed. A lease may set a lower fee than the statutory ceiling, but a figure above it exceeds what the statute permits.

Does Washington require a grace period before a late fee applies?

Yes. RCW 59.18.170 provides that a 5-day grace period runs before a late fee may be charged. Rent paid inside that window is not late for fee purposes, even where the lease itself says otherwise, because the statutory floor governs over a conflicting lease term.

Can a late fee in Washington be charged more than once on the same late rent?

That depends on how the lease is written. A single flat fee per late payment is the most common structure. Some leases add a daily charge that accrues while rent stays unpaid, which compounds the total well beyond the headline figure — the calculator on this page separates the flat fee from the daily accrual so the two are visible independently. The statutory ceiling in Washington is no statutory percentage cap; 5-day grace required.

What happens if a Washington lease sets a late fee above the statutory cap?

A lease term that exceeds a statutory ceiling is generally unenforceable to the extent of the excess, since the statute sets a floor of tenant protection that a private contract cannot waive downward. The practical question is usually evidentiary rather than legal: what the lease says, what was actually charged, and what the payment record shows. Washington's provision is at RCW 59.18.170.

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