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Managing rental property across both Oregon and Washington, from Portland to Vancouver and beyond, means operating under two genuinely different legal frameworks, not one set of Pacific Northwest rules with minor variations. Security deposits, rent increase limits, and notice requirements all diverge in ways that catch owners off guard when they assume a policy that works on one side of the Columbia River automatically works on the other.
Key Takeaways
Security Deposits: Oregon has no statutory cap on security deposit amounts and allows landlords 31 days post-tenancy to return the deposit or provide an itemized accounting. Washington caps security deposits at one month's rent and treats the deposit as tenant property.
Rent Regulation: Oregon enforces statewide rent control under ORS 90.323 and 90.324, capping annual increases at 9.5% for 2026, prohibiting increases during the first year of tenancy, and requiring 90 days' notice for larger increases. Washington operates under a different regulatory framework.
Entry Notice: Oregon requires at least 24 hours' notice before a landlord may enter a rental unit under most circumstances.
Evictions: Both states ban self-help evictions and require a formal court process to remove a tenant.
Security Deposits: No Cap vs. a One-Month Ceiling
This is one of the starkest differences between the two states. Oregon doesn't set any statutory limit on how much a landlord can charge for a security deposit, leaving that number to market practice and the specific lease. Washington takes the opposite approach, capping security deposits at one month's rent and treating the deposit as belonging to the tenant throughout the tenancy rather than functioning as the landlord's money held temporarily.
An owner accustomed to Oregon's flexibility can significantly overcharge a Washington tenant without realizing it, simply by applying a deposit figure that would be perfectly normal just across the river. Our accounting and financial reporting systems track these state-specific caps separately for every property in our portfolio, since a single spreadsheet template built around one state's rules doesn't safely transfer to the other.
Rent Increases: Oregon's Statewide Cap vs. Washington's Different Framework
Oregon has operated under statewide rent stabilization since 2019, with the current annual cap set at 9.5 percent for 2026 under ORS 90.323 and 90.324. No increase is allowed during a tenant's first year of occupancy, and covered tenancies generally require 90 days' written notice for increases after that point, with only one increase permitted in any 12-month period.
Washington's approach to rent regulation and required notice periods for increases operates under its own separate framework, and treating Oregon's specific percentage cap or notice timeline as if it automatically applies to a Washington property is a mistake that can result in an improperly noticed increase. Confirming the correct framework for each specific property's state, rather than defaulting to whichever state an owner is more familiar with, protects against sending a notice that doesn't hold up.
Notice Requirements for Landlord Entry
Oregon requires landlords to provide at least 24 hours' written notice before entering a rental unit in most circumstances, with exceptions for genuine emergencies like fire or water damage, or when a unit has been abandoned. The notice has to specify the date, time, and reason for entry, not just a general heads-up that someone will be stopping by.
Washington's entry notice framework runs on its own separate timeline and requirements, and an owner managing properties in both states needs to apply the correct state's rule to each specific property rather than defaulting to a single standard across the entire portfolio.
Our tenant screening and lease preparation process builds these state-specific entry notice requirements directly into every lease we prepare, so the correct rule attaches automatically based on where a property actually sits.
Self-Help Evictions Are Illegal in Both States, But the Process Differs
Both Oregon and Washington prohibit self-help evictions entirely, meaning a landlord cannot change locks, shut off utilities, or remove a tenant's belongings without going through the formal court process first, regardless of how clear the underlying nonpayment or violation might be.
What differs between the two states is the specific notice periods, required forms, and court procedures leading up to that point, so an eviction timeline that applies correctly to an Oregon property doesn't automatically map onto a Washington one with the same filing steps or waiting periods.
FAQ
Does Oregon cap how much I can charge for a security deposit?
No. Oregon sets no statutory limit on security deposit amounts, unlike Washington, which caps deposits at one month's rent.
What is Oregon's current rent increase cap for 2026?
9.5 percent annually under ORS 90.323 and 90.324, with no increases allowed during a tenant's first year of occupancy.
Does Washington follow the same rent increase cap as Oregon?
No. Washington's rent regulation framework operates separately from Oregon's statewide cap, so the specific percentage and notice requirements differ between the two states.
How much notice do I need to give before entering a rental unit in Oregon?
Generally at least 24 hours, specifying the date, time, and reason for entry, with exceptions for genuine emergencies or an abandoned unit.
Managing Compliance Across Two States
Owning rental property on both sides of the Columbia River means genuinely different rules apply depending on exactly where a specific property sits, from security deposit caps to rent increase percentages to entry notice requirements. Treating Oregon and Washington as a single regulatory region, rather than two distinct legal frameworks, is one of the more common compliance mistakes we see from cross-river owners.
If you'd like help confirming your current lease templates and policies actually reflect the correct state's rules for each of your properties, reach out to our team today.
