Free California RV Bill of Sale

Q: Why is California use tax on an RV so high?

California taxes the full sale price (or fair market value, whichever is higher) at the buyer's county combined rate (7.25%–10.75%). Unlike most states, California does NOT give a trade-in credit on private-party sales — even if you traded in another RV worth $80,000 on a $200,000 coach, you owe tax on the full $200,000. On a $150,000 fifth-wheel registered in Alameda County (10.25%), that is $15,375 in use tax. DMV collects at registration; understating the price will trigger a CDTFA review using NADA RV guides.

Q: Do motorhomes need a smog check in California?

Yes for most. Gasoline motorhomes more than 4 model years old need a smog certificate dated within 90 days of transfer, and the seller pays. Diesel motorhomes are partially exempt: model-year 1997 and older are fully exempt, but 1998 and newer diesels under 14,000 lbs GVWR (most Class B vans and small Class C's) need smog as of California's 2010 law. Heavy-diesel pushers over 14,000 lbs GVWR remain exempt. Smog at a STAR station for an RV runs $80–$150 because of the larger engines and fuel systems.

Q: Do I need a special license to drive my new RV in California?

Maybe. A standard California Class C license covers motorhomes up to 40 feet long and any vehicle/trailer combination where the trailer is under 10,000 lbs GVWR. You need a Class A non-commercial license for motorhomes over 40 ft, or for any combination towing a trailer over 10,000 lbs. A Class B non-commercial covers single vehicles over 40 ft (rare). The Class A non-commercial requires a written test, a skills test in the actual rig, and a DOT physical. Plan 4–6 weeks. Insurance carriers can deny claims if you operated outside your license class.

Q: How does the trailer/fifth-wheel transfer differ from a motorhome?

A motorhome is a self-propelled vehicle and uses the standard car title and license plate, with REG 138 Release of Liability filed within 5 days. A travel trailer or fifth-wheel is a separate registered trailer with its own pink slip and plate — the seller signs that title, the buyer registers separately at DMV, and there is no smog requirement and (for non-self-propelled trailers) no REG 138 (it is not on your driver record the same way). Use tax still applies at full price. Toy haulers count as trailers, not motorhomes, even with onboard generators.

California RV transfers split by class: motorhomes (Class A diesel pushers, Class B vans, Class C cab-overs) move like cars on the standard pink slip with REG 135 and REG 138, while travel trailers, fifth-wheels, and toy haulers transfer as trailers with their own title and plate. The brutal California-specific surprise is use tax: the DMV taxes the full sale price (no trade-in deduction in private sales) at the buyer's county rate of 7.25%–10.75%. On a $150,000 fifth-wheel in Los Angeles County (9.5%), that is $14,250 due at registration. Smog certification rules apply to gas motorhomes over 4 model years old and to many post-1997 diesels under 14,000 lbs GVWR. Buyers should also know California limits "permanent" RV-park residency under local ordinances.

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Motorhomes title like motor vehicles; towable trailers title like trailers — and the paperwork differs for each. Our guide covers lien holder procedures, what to do with an active loan balance, and how RV registration deadlines work. Read: Car Bill of Sale: Complete Guide →

California RV Bill of Sale — What You Need to Know

Primary Form

REG 135

Bill of Sale

Agency

CA DMV

California Department of Motor Vehicles

Primary ID Field

VIN

Sales Tax

0.0725%

Title Required

Yes

Motorhomes (Class A/B/C) get standard CA titles. Travel trailers and fifth-wheels follow trailer rules and need a separate title and license plate. Truck campers ride on the truck's registration in California.

Inspection

Required

Sales Tax Details

7.25%–10.75% use tax on the FULL sale price or fair market value, whichever is higher — California does not allow trade-in credit on private-party RV sales, so the bill can run $20,000+ on a $200,000 motorhome.

Exemption: Family transfers (spouse, parent, child, grandparent, grandchild, sibling, domestic partner) exempt with REG 256.

Inspection Requirements

Smog certificate required for gasoline motorhomes more than 4 model years old (seller pays, <90 days old). Diesel motorhomes 1997 and older are exempt; 1998+ diesels under 14,000 lbs GVWR require smog as of 2010 law. Trailers do not require smog.

Registration

Registration for this vehicle type is handled by California DMV — not the same agency that handles cars in California. Plan for separate filings.

California RV Sale — Step-by-Step Checklist

Complete REG 135 with VIN, length, make/model/year, sale price, and odometer (motorhomes)
Seller signs Certificate of Title (motorhome) or trailer title; buyer signs transfer line
File REG 138 Release of Liability online at dmv.ca.gov within 5 days (motorhomes)
Provide smog certificate (under 90 days) for gas motorhomes more than 4 model years old
Buyer transfers title and pays use tax (7.25%–10.75% on full sale price) at DMV within 10 days
For trailers, transfer title separately — trailer has its own plate and registration
Disclose roof leaks, slide-out failures, delamination, and any insurance-loss history in writing
Verify weight rating (GVWR) — California Class A driver license required for motorhomes over 40 ft or towing combos over 15,000 lbs

Common Pitfalls

Forgetting California has NO trade-in tax credit on private-party sales — full purchase price is taxed, often a $10,000+ surprise
Skipping smog on a gas motorhome — buyer cannot register and seller is statutorily required to provide it
Buying a 41-foot Class A without a Class A non-commercial CDL — California DMV will not register it to a Class C licensee for legal operation, and insurance can deny claims
Missing slide-out, roof, or chassis defects pre-sale — California fraud claims (CC §1572) commonly arise from concealed water damage on RVs (averaging $15,000+ in repairs)
Treating a fifth-wheel transfer as a "motorhome" sale — they are separate titles and missing the trailer title transfer means the buyer cannot legally tow it home

Pro Tip

RV deals in California live or die on use-tax math and smog paperwork. Budget the full-price tax hit, get the smog cert in hand, and confirm your license class before you buy.

California RV Bill of Sale — FAQs

Why is California use tax on an RV so high?

California taxes the full sale price (or fair market value, whichever is higher) at the buyer's county combined rate (7.25%–10.75%). Unlike most states, California does NOT give a trade-in credit on private-party sales — even if you traded in another RV worth $80,000 on a $200,000 coach, you owe tax on the full $200,000. On a $150,000 fifth-wheel registered in Alameda County (10.25%), that is $15,375 in use tax. DMV collects at registration; understating the price will trigger a CDTFA review using NADA RV guides.

Do motorhomes need a smog check in California?

Yes for most. Gasoline motorhomes more than 4 model years old need a smog certificate dated within 90 days of transfer, and the seller pays. Diesel motorhomes are partially exempt: model-year 1997 and older are fully exempt, but 1998 and newer diesels under 14,000 lbs GVWR (most Class B vans and small Class C's) need smog as of California's 2010 law. Heavy-diesel pushers over 14,000 lbs GVWR remain exempt. Smog at a STAR station for an RV runs $80–$150 because of the larger engines and fuel systems.

Do I need a special license to drive my new RV in California?

Maybe. A standard California Class C license covers motorhomes up to 40 feet long and any vehicle/trailer combination where the trailer is under 10,000 lbs GVWR. You need a Class A non-commercial license for motorhomes over 40 ft, or for any combination towing a trailer over 10,000 lbs. A Class B non-commercial covers single vehicles over 40 ft (rare). The Class A non-commercial requires a written test, a skills test in the actual rig, and a DOT physical. Plan 4–6 weeks. Insurance carriers can deny claims if you operated outside your license class.

How does the trailer/fifth-wheel transfer differ from a motorhome?

A motorhome is a self-propelled vehicle and uses the standard car title and license plate, with REG 138 Release of Liability filed within 5 days. A travel trailer or fifth-wheel is a separate registered trailer with its own pink slip and plate — the seller signs that title, the buyer registers separately at DMV, and there is no smog requirement and (for non-self-propelled trailers) no REG 138 (it is not on your driver record the same way). Use tax still applies at full price. Toy haulers count as trailers, not motorhomes, even with onboard generators.

Other California Templates

🚘Vehicle Bill of Sale 🚗Car Bill of Sale 🚙Used Car Bill of Sale 🏍️Motorcycle Bill of Sale ⛵Boat Bill of Sale 🚛Trailer Bill of Sale 🐴Horse Bill of Sale 🏎️ATV Bill of Sale 🔫Gun / Firearm Bill of Sale 📄General Bill of Sale 🖨️Free Printable Bill of Sale 📏Odometer Disclosure Bill of Sale ⚠️As-Is Bill of Sale 🎁Gift Bill of Sale

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