When is REG 5085 required in California?

Use it to transfer vessel ownership or update vessel registration when buying, selling, or gifting a boat documented with the DMV. Tags Clinic in San Diego and Escondido verifies hull ID numbers and ownership documents before submission.

California DMV Form

REG 5085 — Application for Vessel Transfer/Registration

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Tags Clinic is a licensed California DMV Business Partner. Tags Clinic is not owned or operated by the California DMV.

View & print REG 5085

Free Tags Clinic branded copy — open below or download before your visit to San Diego or Escondido.

Application for Vessel Transfer/Registration sample illustration

Reference image for Application for Vessel Transfer/Registration

How to Complete This Form

Instructions

Complete REG 5085 with accurate HIN, vessel make/model/year, and buyer and seller information.
Attach proof of ownership (bill of sale, prior title, or Certificate of Number).
Include all owner signatures required for the transfer type.
Pay applicable vessel registration or transfer fees per current DMV schedules.
Bring documents to Tags Clinic—we verify and submit on your behalf.

Frequently Asked Questions

When You Need This Form

File REG 5085 when transferring a documented vessel, updating registered owners, or correcting vessel registration records in California. Bring proof of ownership and the prior Certificate of Number when possible.

Why This Form Exists

REG 5085 keeps California vessel records accurate so your boat is legally registered under the correct owner—required for waterways compliance and insurance.

How to Fill Out This Form

Complete REG 5085 in black or blue ink with hull identification number (HIN), vessel description, buyer and seller details, and sale date. Attach bill of sale or title and sign where indicated.

Common Mistakes to Avoid

Wrong HIN, missing co-owner signatures, outdated form revision, or missing proof of ownership are the most common reasons DMV rejects vessel transfers.

Executive Summary

REG 5085 transfers vessel ownership or updates boat registration in California. Tags Clinic in San Diego and Escondido helps with HIN verification, bills of sale, and same-day vessel paperwork—no DMV line. Tags Clinic helps San Diego and Escondido customers complete REG 5085 with expert BPA review before DMV submission.

Key Takeaways

Complete REG 5085 with accurate HIN, vessel make/model/year, and buyer and seller information.
Attach proof of ownership (bill of sale, prior title, or Certificate of Number).
Include all owner signatures required for the transfer type.
Pay applicable vessel registration or transfer fees per current DMV schedules.

Important Facts

Form: REG 5085 — Application for Vessel Transfer/Registration
PDF: Free download available
Help: Walk-in at San Diego & Escondido
Business type: Licensed DMV Business Partner

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