Washington County does not require garage sale permits for unincorporated areas. Most cities within the county (Beaverton, Hillsboro, Tigard, Tualatin) also allow garage sales without permits, relying on frequency and signage limits instead.
Unincorporated Washington County does not operate a garage sale permit system — occasional residential yard sales are considered accessory personal-property sales and exempt from business licensing under ORS 701 and the county home-business code. Beaverton BC 7.02 allows garage sales without permits subject to frequency and sign rules. Hillsboro HMC 5.04 treats occasional garage sales as non-commercial. Tigard TMC 5.04 exempts yard sales from transient merchant registration if held at the resident's home. Tualatin, Sherwood, and Forest Grove all follow similar exemption patterns. Signs advertising the sale typically must follow local sign codes: no placement in public right-of-way (state preempted sign placement under ORS 377), no attaching to utility poles or street signs (violates OAR 734-030 on signs in state right-of-way), removed within 24-48 hours of sale end. Sales that become quasi-commercial (weekly, ongoing, or with commercial merchandise) trigger home-business zoning requirements under CDC §430-63 and city equivalents. Sales tax: Oregon has no sales tax, so garage sales have no tax collection obligation.
No permit violations typical. Sign violations: $25-$100. Operating as unlicensed retail: home business zoning violation $100-$500.
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