Buying a Vehicle From California: Out-of-State Buyer Guide
Buying a vehicle in California to register elsewhere has specific rules and red flags. Here's what the seller must provide, where you pay tax, and how to avoid the common traps.
Quick Reference
What the Seller Must Provide
Provide signed title + smog certificate (if applicable) + REG 138 (release of liability)
California sellers must transfer signed title, valid smog certificate (gas vehicles 1976+), and file REG 138 with DMV within 5 days.
Sales / Use Tax
Buyer pays sales tax in HOME state, not CA
When buying from a CA seller and registering in your home state, CA does NOT charge sales tax. You pay use tax in your home state at registration.
Temporary Tag
One-Trip Permit ($22) good for 60 days
CA One-Trip Permit allows you to drive an unregistered vehicle out of CA. Available at any DMV office. Required if vehicle has no CA plates.
Drive-Away Insurance
Required — proof of insurance before leaving the state
California requires proof of insurance to drive the vehicle. Most out-of-state buyers temporarily bind coverage with their home state insurer before purchase.
Emissions / Inspection
CA seller must provide smog certificate; your home state may not require it
CA seller provides smog certificate as part of sale. Your home state determines whether you need that cert or your own emissions test.
Title Transfer Route
CA title signed to you → bring to home state DMV
Take the CA title (signed over to you) to your home state's DMV. They will void the CA title and issue a new home-state title.
Red Flags to Avoid
- Seller refusing to provide smog cert (CA-required disclosure)
- Title in someone else's name — confirm seller IS the owner
- Active lien on the title (must be released before transfer)
- Salvage title disguised as clean (CHECK FIRST)
- No CA address for seller (potential fraud)
California Standout Warning
Frequently Asked Questions
What must the California seller provide?
Provide signed title + smog certificate (if applicable) + REG 138 (release of liability). California sellers must transfer signed title, valid smog certificate (gas vehicles 1976+), and file REG 138 with DMV within 5 days.
Do I pay sales tax in California or my home state?
Buyer pays sales tax in HOME state, not CA. When buying from a CA seller and registering in your home state, CA does NOT charge sales tax. You pay use tax in your home state at registration.
What's the temporary tag option from California?
One-Trip Permit ($22) good for 60 days. CA One-Trip Permit allows you to drive an unregistered vehicle out of CA. Available at any DMV office. Required if vehicle has no CA plates.
Do I need insurance to drive the vehicle out of California?
Required — proof of insurance before leaving the state. California requires proof of insurance to drive the vehicle. Most out-of-state buyers temporarily bind coverage with their home state insurer before purchase.
How does title transfer work when buying from California?
CA title signed to you → bring to home state DMV. Take the CA title (signed over to you) to your home state's DMV. They will void the CA title and issue a new home-state title.
Sealing the Deal?
A California bill of sale documents the transfer for your home state DMV — required in most jurisdictions for out-of-state vehicle titling.
Generate Bill of SaleSource: California DMV Out-of-State Buyer. Always run a free NMVTIS title history check at vehiclehistory.gov before buying out-of-state.