Statutory Summary: ORS § 90.427
Oregon allows 30 days notice in year 1; just-cause rules apply afterwards.
General Oregon Rental Guidelines
In Oregon, the calculation method for prorated rent is primarily governed by the written lease contract. Applicable state statutes (including ORS § 90.427) establish required notice periods for terminating month-to-month tenancies and statutory deadlines for security deposit reconciliation.
Official Sample Notice & Proration Settlement Template:
"To: [Landlord / Property Management Name]
Property Address: [Your Full Rental Address]
Please accept this letter as formal written notice pursuant to ORS § 90.427 that I will vacate the premises on [Move-Out Date]. As our rental cycle ends on [Cycle End Date], my lawful tenancy for this final period spans exactly [Number of Days] days. Based on our monthly rent of $[Monthly Rent] and our state's calendar apportionment standards, the final prorated rent due is $[Calculated Amount]. Please direct my remaining security deposit of $[Deposit Amount] pursuant to state deposit return statutes within 31 Days to my forwarding address below.
Forwarding Address: [Your New Address]
Tenant Signature: _______________________ Date: ____________"
Legal & Informational Disclaimer:
The statutory summaries, notice durations, and deposit refund deadlines provided for Oregon are compiled from public state legislative codes (including ORS § 90.427) for general computational reference. Local municipal rent stabilization ordinances (such as city rent control boards) may impose additional local restrictions. This tool provides mathematical rent apportionment and does not constitute formal legal counsel. For specific lease disputes, consult an attorney licensed in Oregon or your local legal aid society.