Washington Sublease Agreement: Consent, Deposit, and Disclosures

A Washington sublease agreement is a written contract that lets you, as the current tenant, rent your unit to someone else for part or all of the time left on your lease. You keep your name on the master lease and stay fully responsible to the landlord for rent, damage, and every other obligation. The new occupant (the sublessee) pays you; you keep paying the landlord. Before you sign anything, check whether your lease allows subletting, get the landlord’s written consent if it’s required, and put the arrangement in writing with the master lease attached.

Does Your Lease Even Allow a Sublease?

Washington’s Residential Landlord-Tenant Act does not give tenants an automatic right to sublease.¹ Whether you can sublet depends almost entirely on what your master lease says. Read it first.

If the lease prohibits subletting, that prohibition controls. Subleasing anyway is a material breach, and the landlord can serve a 10-day notice requiring you to cure the violation or move out. Fail to cure within those 10 days and the landlord can start formal eviction.²

Many Washington leases allow subletting only with the landlord’s written approval. Under general property law principles, where the lease is silent on subletting, a tenant can transfer occupancy without consent. Even when a lease conditions subletting on landlord approval, the landlord generally cannot withhold consent for arbitrary or discriminatory reasons.

You Stay on the Hook

Here is the point most sublessors miss: signing a sublease does not transfer your obligations under the master lease. If your sublessee stops paying rent, the landlord bills you. If they punch a hole in the wall or draw noise complaints, you answer for it. If they get evicted, your name is on the eviction.

The master lease’s rules also flow through to the sublessee. Pet restrictions, quiet hours, parking rules, guest policies — all of it binds whoever lives in the unit. A well-drafted sublease incorporates the master lease by reference and attaches a copy as an exhibit, so the sublessee can’t later claim they didn’t know the rules. Don’t create sublease terms that conflict with the master lease. If your landlord bans pets and your sublease allows a dog, you’ve just written yourself an eviction notice.

Getting Landlord Consent

Even when your lease permits subletting, get the landlord’s written consent before the sublessee moves in. Make the request in a way that creates a paper trail: certified mail with return receipt, email with a read confirmation, or hand delivery with a signed acknowledgment. Include the proposed sublessee’s name, the move-in date, and the sublease term so the landlord has what they need to decide.

The landlord may want to run a credit or background check. Under Washington law, the screening fee cannot exceed the landlord’s actual cost of obtaining the report, and the landlord must give the applicant a written receipt identifying the screening company by name and address.³ There is no statutory flat amount; the cap is actual cost.

What to Put in the Agreement

A sublease needs enough detail to stand as its own enforceable contract while staying consistent with the master lease. At a minimum, cover:

Full legal names of the landlord, sublessor, and sublessee, and the complete street address of the unit.
Exact start and end dates. The sublease cannot extend past the master lease’s expiration.
Monthly rent, due date, accepted payment methods, and where payment goes.
Which party pays each utility: electricity, water, gas, internet, and anything else.
An inventory of any furniture or appliances left behind, with photographs, so later disputes about damage or missing items have a reference point.
A full copy of the master lease attached as an exhibit.

House rules on smoking, guests, parking, and common areas should come straight from the master lease. At signing, the sublessee usually pays the first month’s rent and the security deposit. Give a written receipt for every dollar, noting the amount, the date, and what the payment covers.

Handling the Security Deposit

If you collect a deposit, you are acting as a landlord for purposes of Washington’s deposit rules, and the obligations are strict. You must provide a written move-in checklist describing the unit’s condition — walls, carpets, fixtures, appliances, existing damage. You and the sublessee both sign and date it, and the sublessee gets a copy. No deposit can be collected without a written rental agreement and this checklist. Skip the checklist and you lose the ability to withhold any portion of the deposit later.⁴

The deposit itself must sit in a trust account at a Washington financial institution or licensed escrow agent. Give the sublessee a written receipt for the amount and a written notice identifying the name, address, and location of where the money is held.⁴

The 30-Day Return Deadline

When the sublease ends and the sublessee moves out, you have 30 days to return the deposit along with a full, itemized statement of any deductions. Deductions for damage must be backed by copies of repair estimates or invoices. If you did the repair yourself, include a statement of the time spent, the hourly rate charged, and receipts for materials.⁵

Miss the deadline and you forfeit the right to withhold any part of the deposit. A court can award the sublessee up to twice the deposit amount if it finds you intentionally refused to return the money, and the prevailing party in a deposit dispute recovers attorney’s fees.⁵ These penalties apply to sublessor-sublessee relationships just as they apply to traditional landlords.

Required Disclosures

Lead-Based Paint

If the unit was built before 1978, federal law requires you to give the sublessee the EPA pamphlet “Protect Your Family From Lead in Your Home,” disclose any known lead-based paint or hazards, and provide copies of any available lead inspection reports before the sublessee signs.⁶ A signed lead warning statement confirming you met these requirements must be included in or attached to the sublease.

The penalties for skipping this step are steep: a knowing violation can mean liability for three times the sublessee’s actual damages, plus costs and attorney’s fees. The unit does not have to actually contain lead paint — any pre-1978 housing triggers the disclosure duty unless a certified inspector has confirmed the property is lead-free. Narrow exemptions exist for rentals of 100 days or less with no renewal option and for housing designated for elderly or disabled residents where no child under six lives or is expected to live.⁶

Fair Housing When Picking a Sublessee

Choosing a sublessee is not a gut-feeling decision. The federal Fair Housing Act prohibits discrimination based on race, color, religion, sex, familial status, national origin, or disability, and those protections apply to sublessors.⁷ You cannot advertise a preference for a particular religion, state “no children,” or use language signaling the unit is for certain groups only. Washington state law adds further protected classes beyond the federal list.

Stick to objective, lease-relevant criteria: income verification, credit history, rental references, and willingness to accept the master lease terms. Write down your criteria before you advertise and apply them the same way to every applicant.

Late Fees

Washington does not cap the dollar amount of a late fee, but no late fee can be charged for rent paid within five days of the due date.⁸ Some cities and counties have adopted local caps that go beyond state law, so check the ordinances where the property sits. Whatever fee you set should be reasonable and clearly stated in the sublease. An unreasonable fee can be challenged as an unenforceable penalty.

If Your Sublessee Is a Servicemember

A sublessee who is in the military can end the sublease early under the Servicemembers Civil Relief Act after receiving deployment orders for 90 days or more, permanent change-of-station orders, or entry into military service.⁹ The servicemember delivers written notice with a copy of the orders by hand, private carrier, or U.S. mail with return receipt requested.

For a monthly rent, termination takes effect 30 days after the next rent payment comes due following delivery of the notice. You cannot charge an early termination fee or treat the departure as a breach, and any prepaid rent covering the period after the effective termination date must be refunded within 30 days.⁹ If you are counting on sublease income through a specific date, that risk is worth pricing in.

Insurance

Standard renters insurance is written for the named policyholder and may not cover incidents involving a sublessee. If your sublessee causes a kitchen fire or a water leak that damages a neighbor’s unit, your policy might deny the claim because the sublessee is not an insured party. Call your carrier before the sublease begins and ask whether coverage extends to a sublessee or whether you need to add them.

Require the sublessee to carry their own renters policy and include proof of coverage as a condition in the sublease. Separate policies protect each side’s belongings and provide liability coverage where it is needed.

Tax on the Rent You Collect

Rent from a sublessee is taxable income reported on Schedule E of your Form 1040.¹⁰ You can generally deduct expenses tied to earning that income, which for most sublessors includes the rent you pay the landlord under the master lease, plus costs like advertising or minor repairs the sublease makes you responsible for.¹¹ Keep records of every payment received and expense paid throughout the sublease.

Move-Out and Deposit Return

Write a clear move-out process into the sublease. Schedule a walk-through with the sublessee before they leave, compare the unit’s condition to the move-in checklist, and photograph any new damage. That inspection is what supports (or defeats) a decision to withhold part of the deposit.

Once the sublessee is out, the 30-day deposit clock starts. Gather repair estimates or invoices quickly so you can send the itemized statement in time.⁵ Normal wear — minor scuffs on walls, slightly worn carpet — cannot be deducted. Damage beyond ordinary use can.

Finally, confirm with your landlord that the unit is in acceptable shape before your own lease resumes or expires. You are still the tenant of record. If the sublessee leaves damage behind and disappears, it becomes your bill. A thorough written sublease, a signed checklist, clear financial terms, and an attached copy of the master lease are what keep that outcome from landing on you.

1
Washington State Legislature. Residential Landlord-Tenant Act
2
Washington State Legislature. RCW 59.18.650 – Eviction of Tenant, Refusal to Continue Tenancy, End of Periodic Tenancy – Cause – Notice – Penalties
3
Washington State Legislature. RCW 59.18.257 – Screening of Prospective Tenants
4
Washington State Legislature. RCW 59.18.260 – Moneys Paid as Deposit or Security for Performance by Tenant – Written Rental Agreement to Specify Terms and Conditions for Retention by Landlord – Written Checklist Required
5
Washington State Legislature. RCW 59.18.280 – Deposit – Statement and Notice of Basis for Retention – Deadline
6
Office of the Law Revision Counsel. 42 USC 4852d – Disclosure of Information Concerning Lead Upon Transfer of Residential Property
7
Office of the Law Revision Counsel. 42 USC 3604 – Discrimination in the Sale or Rental of Housing and Other Prohibited Practices
8
Washington State Legislature. RCW 59.18.170 – Landlord to Give Notice if Tenant Fails to Carry Out Duties – Late Fees
9
Office of the Law Revision Counsel. 50 USC 3955 – Termination of Residential or Motor Vehicle Leases
10
Internal Revenue Service. Publication 527 – Residential Rental Property
11
Internal Revenue Service. Topic No. 414 – Rental Income and Expenses