Free Washington RV Bill of Sale
Washington RV deals follow the same TD-420-065 / TD-420-001 framework as cars but with a few RV-specific traps. Motorhomes pay the 0.3% Sound Transit MVET in the Seattle/Tacoma metro on top of 7%–10.4% sales/use tax — non-motorized travel trailers do not. The 5-business-day Vehicle Report of Sale rule is critical for sellers (RVs can rack up campground bills, tolls, and abandoned-vehicle impound fees fast). The 15-day title-transfer deadline applies. There's no state safety inspection, but an NRVIA-certified pre-purchase inspection on a $50K+ motorhome is the only meaningful protection against hidden roof leaks, soft floors, slide-out failures, and generator issues — Washington private-party RV sales are strictly as-is. Out-of-state RVers establishing WA residency and registering here owe use tax on fair market value unless they paid equivalent tax elsewhere.
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Washington RV Bill of Sale — What You Need to Know
Sales Tax Details
6.5% state + 0.5%–3.9% local sales/use tax (7%–10.4% combined) on the higher of purchase price or fair market value. Sound Transit's 0.3% MVET applies to motorhomes registered in the King/Pierce/Snohomish metro district (motorhomes are "vehicles" for MVET purposes; non-motorized travel trailers are not). Annual RV registration fees include a weight-based component plus the standard $30 vehicle license fee.
Exemption: Family transfers (spouse, parent, child, sibling, grandparent, grandchild) exempt with Form TD-420-038. Full-time RVer establishing WA residency from another state pays use tax on the RV's fair market value at the time of WA registration unless they paid equivalent or greater sales tax in the prior state.
Inspection Requirements
No state safety inspection. Emissions testing ended statewide January 2020. Pre-purchase inspection by an NRVIA-certified RV inspector strongly recommended for motorhomes and large fifth-wheels — covers roof condition, slide-out mechanics, propane system, generator, water systems, chassis, and house batteries. Out-of-state RVs being titled in WA need a VIN inspection at a WSP station.
Registration
Registration for this vehicle type is handled by Washington Department of Licensing (DOL) — vehicle licensing offices and subagents — not the same agency that handles cars in Washington. Plan for separate filings.
Washington RV Sale — Step-by-Step Checklist
- NRVIA-certified pre-purchase inspection — roof, slides, seals, electrical, plumbing, generator, propane, chassis, hitch — Washington private RV sales are AS-IS.
- Verify VIN on the title matches the chassis VIN tag and the unit's data plate; cross-check against an RV history report (if available).
- Complete Form TD-420-065 with both parties' info, full VIN, year/make/model, length, sale price, and date — both sign.
- Seller signs the WA Certificate of Title; for motorhomes, complete the federal odometer disclosure.
- Seller files Vehicle Report of Sale online at dol.wa.gov within 5 business days — protects from buyer-incurred campground bills, tolls, and impound fees.
- Buyer titles within 15 days at WA DOL using Form TD-420-001; pays 7%–10.4% sales/use tax on the higher of price or fair market value.
- Motorhome buyers in Sound Transit district (King/Pierce/Snohomish metro) pay an additional 0.3% MVET; trailer buyers do not.
- Confirm propane tank certifications (DOT cylinders need recertification every 12 years), tow capacity matches the buyer's tow vehicle, and any recall work has been completed.
Common Pitfalls
- Skipping the inspection on a high-dollar motorhome — soft roofs, delaminated walls, slide-out gear damage, and generator overhauls easily run $5K–$25K in repairs and are nearly invisible to a non-specialist buyer.
- Reporting a low purchase price — DOL uses NADA RV values to verify and reassesses use tax + penalties on the higher figure. With no state income tax, sales-tax enforcement is aggressive.
- Forgetting the 0.3% Sound Transit MVET on motorhomes registered in Seattle/Tacoma metro — adds hundreds to the title-transfer bill.
- Seller skipping the 5-day Report of Sale — buyer parks at a long-term campground, abandons the RV, and the impound/disposal bill (often $3K–$10K) comes to the registered owner.
- Tow vehicle mismatch — buyer assumes a half-ton truck can tow a 9,500-lb fifth wheel; check GCWR, tongue weight, and hitch rating before delivery.
- Out-of-state full-time RVer registering in WA without budgeting use tax — moving from a no-sales-tax state (OR, MT, NH) to WA triggers full use tax on FMV at registration.
Pro Tip
Washington RV checklist: NRVIA inspection, real price on TD-420-065, 5-day Report of Sale, 15-day title via TD-420-001, 7%–10.4% sales tax + 0.3% Sound Transit MVET on motorhomes in the metro, and full use tax on fair market value if you're bringing the rig in from a no-sales-tax state.