To put a lien on a boat, first determine whether the vessel is titled by a state agency or documented with the U.S. Coast Guard, then file the appropriate notice with that agency along with proof of the vessel’s identity and the unpaid debt. The two paths use different forms, different fees, and different offices, and confusing them is the fastest way to have your filing rejected. Everything below assumes you are a repair shop, marina, fuel supplier, or other creditor trying to secure payment against the boat itself rather than only against the owner.
Figure Out Which Filing Path Applies
Two systems record boat liens in the United States, and a vessel sits in one or the other, never both.
Most recreational boats are titled through a state agency. The responsible office varies by jurisdiction and might be the Department of Motor Vehicles, the Department of Natural Resources, or a wildlife and fisheries agency. State-titled boats carry a state registration number.
Larger vessels are often documented with the U.S. Coast Guard through the National Vessel Documentation Center (NVDC). Documented vessels carry an Official Number assigned by the Coast Guard rather than a state registration number. Liens against these boats are recorded federally through the NVDC, not with any state office.
If you are not sure which category the boat falls into, check the paperwork you already have from the owner. A state registration decal points to state filing; a Certificate of Documentation from the Coast Guard points to NVDC filing.
Confirm You Have a Lien Right
Not every unpaid bill supports a lien. Your claim needs to fit a recognized category.
Federal law grants an automatic maritime lien to anyone who provides “necessaries” to a vessel on the order of the owner or someone the owner authorized. Necessaries include repairs, supplies, towage, and the use of a dry dock or marine railway.1Office of the Law Revision Counsel. 46 USC Chapter 313 – Commercial Instruments and Maritime Liens The lien attaches the moment the service is provided; recording is what puts third parties on notice.
State mechanic’s and artisan’s liens secure payment for labor and materials used to repair or maintain a vessel. Storage liens cover unpaid docking, mooring, or storage fees. These are creatures of state statute, so the rules vary by location, and they usually require a written work order or storage contract to hold up.
One boundary worth stating plainly: if you still physically hold the boat, you likely have a possessory lien and don’t need to file anything. Your leverage is the vessel sitting in your yard or slip. The filing process below matters once the boat has left your possession, because that’s when the possessory lien disappears and you need a recorded claim to protect your interest. If an owner is asking you to release a boat before paying, think hard before you do. Holding it is far simpler than chasing a filed lien.
Documents You Need Before Filing
Incomplete paperwork is the most common reason filings get rejected or later challenged. Pull all of this together before you start filling out anything.
To identify the vessel:
- Owner’s full legal name and current address, matching official records rather than a nickname or business alias
- Make, model, year, and length of the boat
- Hull Identification Number, the 12-character serial number typically stamped on the starboard side of the transom (every boat manufactured after 1972 has one)
- State registration number for state-titled boats, or the Official Number for federally documented vessels
To prove the debt:
- The signed contract, work order, or storage agreement that authorized the services
- Itemized invoices showing each charge separately, with any interest or finance charges broken out from principal
- Proof that the work was performed or the storage was provided, such as dated service records or slip rental logs
- Correspondence in which you demanded payment and the owner failed to respond
Calculate the exact amount owed and state it clearly. Vague or inflated numbers weaken the claim and can create liability of their own.
Filing on a State-Titled Boat
Get the lien application form from whichever state agency handles boat titles in your jurisdiction. The application will ask for the boat’s state registration number and the supporting documents listed above.
You submit the completed application with your unpaid invoices and the signed work agreement, usually by mail, along with a filing fee that varies by state. Many states also require you to send written notice to the boat owner before or at the time of filing, telling them you intend to assert a lien. Read your state agency’s instructions carefully. Skipping a notice requirement can void the filing.
Filing on a Federally Documented Vessel
Liens on Coast Guard–documented vessels are recorded through the NVDC. A common misconception is that the NVDC provides a fill-in-the-blank form for this. It does not. There is no OMB-approved Notice of Claim of Lien form.2U.S. Coast Guard National Vessel Documentation Center. Notice of Claim of Lien Instructions You (or your attorney) draft the notice yourself, and it must meet the NVDC’s content requirements:
- The name and Official Number of the vessel
- The signature of each claimant, or someone signing on their behalf, with a date of execution
- A notary acknowledgment on the document
- A declaration confirming that a copy of the notice has been sent to the vessel’s owner, to anyone who previously recorded a claim of lien, and to every mortgagee with an undischarged mortgage on the vessel2U.S. Coast Guard National Vessel Documentation Center. Notice of Claim of Lien Instructions
The NVDC filing fee is $8 per page, and a page with information on both sides counts as two pages.3United States Coast Guard. NVDC Table of Fees Submission goes through the NVDC’s online eStorefront portal.4United States Coast Guard. National Vessel Documentation Center Because the content requirements are precise and the format is up to you, a maritime attorney’s review before submission is usually worth the cost.
Deadlines That Can Kill Your Claim
Waiting is expensive. Maritime liens don’t last forever, and state liens often expire faster than people expect.
A notice of claim of lien recorded with the NVDC expires three years after the date the lien was established, as stated in the notice itself. After that, the vessel owner can ask the Coast Guard to annotate the title to reflect the expiration.5Office of the Law Revision Counsel. 46 USC 31343 – Recording and Discharging Notices of Claim of Lien The three-year window governs the recorded notice, but letting it lapse makes enforcement much harder.
The underlying maritime lien has no fixed federal statute of limitations. Instead, courts apply the doctrine of laches, extinguishing a lien when the holder has unreasonably delayed asserting it and that delay has prejudiced the other side. Courts often look to analogous statutes of limitation to gauge what counts as unreasonable. File and enforce promptly.
State mechanic’s and storage liens have their own deadlines set by state statute, and they are often much shorter. Some states require filing within 30 to 90 days of the debt becoming due. Miss a state deadline and the lien right is typically gone entirely.
Where Your Lien Will Rank if the Boat Is Sold
Filing does not guarantee you get paid in full. If a forced sale happens, proceeds are distributed by priority, and knowing where you stand tells you how likely recovery really is.
- Court costs and the expenses of the sale come off the top
- Preferred maritime liens, including claims for crew wages, salvage, and tort damages such as collision or personal injury, rank above a preferred ship mortgage6Office of the Law Revision Counsel. 46 USC 31326 – Court Sales to Enforce Preferred Mortgage Liens and Maritime Liens and Priority of Claims
- Preferred ship mortgages come next, with priority over all remaining claims6Office of the Law Revision Counsel. 46 USC 31326 – Court Sales to Enforce Preferred Mortgage Liens and Maritime Liens and Priority of Claims
- Liens for necessaries, meaning ordinary repair bills, fuel charges, and marina fees, fall below a preferred mortgage on U.S. vessels
Translation for repair shops and suppliers: if the boat carries a large outstanding mortgage and has limited resale value, a lien for necessaries may not recover much even after a successful case. Check for existing encumbrances before extending significant credit.
Enforcing the Lien if the Owner Still Won’t Pay
Filing secures your position. Getting paid can still require going to court.
For maritime liens on documented vessels, enforcement is an in rem action in federal admiralty court. The lawsuit runs against the vessel itself, not the owner personally, and the court can issue a warrant directing the U.S. Marshal to arrest the boat wherever it is found.7Legal Information Institute. Federal Rules of Civil Procedure Rule C – In Rem Actions Special Provisions The owner must then post a bond or pay to get it back. Otherwise the court orders it sold at auction, with proceeds distributed by the priority hierarchy above. The strength of your documentation matters most at this stage. Signed contracts, itemized invoices, and dated proof of service survive objections; verbal agreements often don’t.
For state-titled vessels with mechanic’s or storage liens, enforcement varies by state. Some states permit nonjudicial sales after specific notice to the owner and lienholders and publication in a local newspaper. Others require a court order first. Follow your state’s statute exactly. Getting the procedure wrong can expose you to a wrongful sale claim.
Releasing the Lien Once You’re Paid
After the debt is paid in full, you must release the lien. This is not optional.
For federally documented vessels, file a satisfaction or release instrument with the NVDC. It must include the vessel’s name and Official Number, the name of each claimant, the total amount of the original claim, and enough identifying information to tie it back to the specific recorded lien, typically the book and page or batch and document ID. It has to be signed, dated, and notarized, then submitted through the eStorefront.8United States Coast Guard. NVDC Requirements for Satisfaction
Move quickly. Failing to provide an acknowledged certificate of discharge after full payment of the underlying debt can subject you to a civil penalty of up to $10,000 under federal law.9Office of the Law Revision Counsel. 46 USC 31309 – General Civil Penalty For state-titled boats, file the release with whichever agency recorded the original lien, using that agency’s release form.