For landlords in Oregon, a well-written lease agreement is more than just paperwork; it’s a safeguard against disputes, financial loss, and legal trouble. Oregon’s Residential Landlord and Tenant Act (ORS Chapter 90) sets strict rules about what landlords can and cannot include in a lease, how security deposits must be handled, and the proper way to end or renew a rental agreement.
Whether you manage a single rental home in Portland or a portfolio of properties across Oregon, understanding lease agreement laws is essential. This guide covers required lease elements, landlord responsibilities, prohibited clauses, and best practices so you can stay compliant and protect your investment.
What Is a Lease Agreement in Oregon?
Under ORS 90.220, a rental agreement (lease) is a written, oral, or implied contract that governs the terms between landlords and tenants. While verbal agreements are technically enforceable, Oregon strongly favors written agreements for clarity and legal protection.
There are two main types of rental agreements:
- Fixed-Term Tenancy: Lasts for a specific time (e.g., 12 months). Ends automatically unless renewed.
- Month-to-Month Tenancy: Continues until either party gives proper notice to terminate.
Pro Tip: Always use a written lease. It clearly outlines rights, obligations, and prevents costly misunderstandings.
Required Elements of an Oregon Lease Agreement
Every Oregon lease should be more than just a rent receipt; it’s a roadmap for how the landlord-tenant relationship works. Under ORS 90.220, certain terms are expected to appear in writing.
Core elements every lease must include:
- Identification of Parties – Full legal names of all tenants and the landlord (or authorized property manager).
- Property Description – Exact rental unit address, unit number, and any included storage/parking spaces.
- Lease Term – Start and end dates (for fixed-term) or designation as month-to-month.
- Rent Details – Amount, due date, payment method (check, ACH, online portal), and acceptable payment locations.
- Security Deposits & Fees – Amount collected, refund conditions, and any allowed fees.
- Utilities & Services – Clear breakdown of which party pays for water, garbage, gas, internet, etc.
- Occupancy Limits – Who is allowed to live in the unit, including minors and dependents.
- Policies – Pet rules, smoking policy, noise restrictions, and guest limitations.
Why it matters: Missing or vague clauses can leave landlords exposed to tenant disputes, legal challenges, or non-payment issues.
Security Deposits & Fees (ORS 90.300)
Security deposits are one of the most common areas of landlord-tenant conflict. Oregon law offers specific guardrails landlords must follow.
Key Rules for Deposits
- No cap, but reasonableness applies: Oregon does not set a maximum amount, but excessive deposits can attract legal challenges.
- Itemization required: Deductions must be itemized with receipts or invoices for costs like repairs or cleaning.
- 31-day deadline: Landlords must return the deposit (minus deductions) within 31 days of lease termination.
What Landlords May Deduct
- Unpaid rent or utilities.
- Damage beyond normal wear and tear (holes in walls, broken appliances).
- Cleaning costs if the lease specifies tenant responsibility.
- Costs related to tenant abandonment.
Non-Refundable Fees
- Application fees may be non-refundable if disclosed.
- Pet fees (not deposits) may be charged as recurring rent or one-time non-refundable fees.
- Security deposits, however, must always be refundable.
Best Practice: Keep a move-in and move-out checklist with photos to justify deposit deductions.
Required Disclosures Landlords Must Provide
Oregon law requires landlords to provide specific disclosures in writing before a tenant moves in. These disclosures protect tenants’ health and safety and shield landlords from liability.
State-Level Disclosures
- Smoke & Carbon Monoxide Alarms – Confirmation that alarms are installed, tested, and operational. Tenants must acknowledge this.
- Flood Plain Risk – If the property is located within a 100-year flood plain, disclosure is required.
- Smoking Policy – Whether smoking is permitted, restricted, or prohibited on the premises.
- Utility Billing Method – If utilities are shared or sub-metered, the method of calculation must be disclosed.
Federal Disclosures
- Lead-Based Paint Disclosure – For all residential properties built before 1978, landlords must provide an EPA-approved pamphlet and disclose known lead hazards.
Local Add-Ons (Portland Example)
- Relocation Assistance Program – In certain no-cause terminations or rent increases above thresholds, landlords must provide relocation assistance payments.
- Rental Registration Requirement – Portland requires rental units to be registered with the city.
Pro Tip: Provide disclosures in a separate addendum and require tenant initials on each section.
Portland Rent Rules & Increases
Rent is the foundation of any lease, but Oregon has strict rules on how it must be managed.
Rent Due & Grace Period
- Rent is usually due on the first of the month, unless otherwise agreed.
- Oregon requires a 4-day grace period before rent can be considered late.
Late Fees (ORS 90.260)
- Must be reasonable and clearly stated in the lease.
- Can be a flat fee, daily fee, or a percentage of rent, but not excessive.
- Example: Charging $200 for a one-day late payment would be unenforceable.
Rent Increases
- Notice requirements:
- 90 days’ written notice required for increases.
- Cannot increase rent during the first year of tenancy.
- Statewide rent cap:
- Maximum increase is 7% plus Consumer Price Index (CPI) annually.
- Oregon publishes the allowable cap each year.
- Portland rules: Some situations may trigger relocation assistance if rent is raised above a certain threshold.
Best Practice: Use certified mail or email (with tenant consent) for all rent increase notices to prove compliance.
Portland Landlord & Tenant Responsibilities
Landlord Obligations
Under ORS 90.320, landlords must:
- Maintain the unit in a habitable condition (roof, plumbing, heating, weatherproofing).
- Provide functioning electrical, heating, and water systems.
- Keep common areas clean and safe.
- Comply with building, housing, and health codes.
- Provide at least 24 hours’ notice before entering the unit (except emergencies).
Tenant Obligations
Tenants are required to:
- Pay rent on time.
- Keep the property clean and sanitary.
- Dispose of garbage properly.
- Avoid damaging the property beyond normal wear and tear.
- Respect neighbors and follow property rules.
Tip for Landlords: Clearly outline tenant responsibilities in the lease to make enforcement easier in court.

Prohibited Lease Terms in Oregon
Not all lease clauses are enforceable. Oregon law prohibits landlords from including certain terms:
- Waiver of legal rights: Tenants cannot waive rights under ORS 90 (e.g., right to habitable housing).
- Excessive late fees: Any charge deemed punitive rather than compensatory may be invalidated.
- “Tenant pays all repairs” clauses: Landlords cannot shift basic maintenance duties to tenants.
- Non-refundable deposits: Illegal under Oregon law.
Including prohibited terms may result in the entire clause being voided or even legal penalties against the landlord.
Ending or Renewing a Lease in Portland
Fixed-Term Leases
- End automatically at the expiration date.
- Renewal requires a new agreement or rollover into a month-to-month.
- In many cases, landlords must give 90 days’ notice if they don’t intend to renew.
Month-to-Month Leases
- Tenants must provide at least 30 days’ notice before vacating.
- Landlords generally must give 90 days’ notice to terminate without cause (with exceptions for owner move-in or sale).
Evictions
- Must follow the court process (FED action – Forcible Entry and Detainer).
- “Self-help” evictions (lock changes, shutting off utilities) are illegal.
Best Practice: Always document lease-end notices and serve them in compliance with Oregon statutes.
Best Practices for Oregon Landlords
- Use State-Specific Lease Templates – Generic leases may miss Oregon-specific rules.
- Update Leases Annually – Oregon’s rent cap changes every year; reflect updates.
- Keep Paper Trails – Save all receipts, notices, and tenant communications.
- Conduct Regular Inspections – Ensure habitability and compliance.
- Consider Professional Management – Property managers can handle legal compliance, tenant communication, and disputes.
Pro tip: Consult a professional property lease agreement company or an attorney.
Portland-Specific Rules
Landlords in Portland must navigate additional tenant protections:
- Relocation Assistance: In certain cases (substantial rent increases, no-cause lease terminations), landlords may be required to pay tenants relocation fees ranging from $2,900 to $4,500 depending on unit size.
- Rental Unit Registration: All Portland rental properties must be registered with the city annually.
- Additional Notice Rules: Portland often requires longer or stricter notice periods compared to state law.
Ignoring local rules can expose landlords to fines and tenant lawsuits.
FAQs – Oregon Lease Agreements
Can landlords charge non-refundable deposits in Oregon?
No. Deposits must be refundable. Only properly disclosed fees (e.g., application fees, pet rent) can be non-refundable.
How much notice is required before raising rent?
At least 90 days’ written notice, and only within the limits of the state’s rent cap.
Do leases automatically renew in Oregon?
Fixed-term leases end at expiration. If not renewed, they often convert to month-to-month unless otherwise stated.
Can landlords enter without tenant permission?
No. Landlords must give 24 hours’ written notice except for emergencies.
What happens if a tenant breaks the lease early?
Tenants remain responsible for rent until the landlord re-rents the unit. Landlords must make reasonable efforts to re-rent.
Are oral rental agreements enforceable?
Yes, but proving terms is difficult. Written leases are strongly advised and recommended and more reason why you should consult a property management company or an attorney.
Can landlords charge late rent fees?
Yes, if stated in the lease and compliant with ORS 90.260. They must be reasonable and not punitive. However, this can be waved for tenant with good payment record.
Conclusion
Oregon lease agreements are tightly regulated, and landlords who fail to comply risk costly disputes, penalties, and lawsuits. From required disclosures and rent increase laws to prohibited clauses, the details matter.
By drafting leases that comply with ORS Chapter 90, keeping accurate records, and staying on top of local rules (especially in Portland), landlords can protect their property, income, and reputation.👉 Want to take the stress out of lease compliance and property management? Contact us today and let our Portland property management experts handle the details while you focus on growing your investment.