To start a charter boat business, you need five things in place before you can legally take money from a passenger: a Coast Guard Merchant Mariner Credential for whoever runs the boat, federal vessel documentation with a Coastwise endorsement, a formed business entity with a federal tax ID, commercial marine insurance, and a working plan for safety, environmental, and tax compliance. Each piece has its own agency, its own fees, and its own timeline, and the vessel cannot carry paying passengers until all of them are done.
Decide What Kind of Charter You’re Running
The first decision shapes everything after it. In a bareboat (or demise) charter, the customer takes full possession and control of the vessel, provides the crew, pays for fuel, and carries almost all operational liability for the trip. In a crewed or skippered charter, you supply the captain and any deckhands, which keeps operational control with you and makes you legally responsible for crew conduct and passenger safety.
Fishing and sightseeing operators almost always run crewed charters. The insurance picture tracks the model: a bareboat charterer needs their own hull, liability, and passenger-injury coverage, while a crewed-charter owner carries one commercial marine policy covering vessel, passengers, and crew. Pick the model before you shop insurance or write marketing copy, because underwriters, lenders, and marinas will all ask.
Get the Captain’s License
Nobody can carry paying passengers without a Coast Guard Merchant Mariner Credential. The usual starting point is the Operator of Uninspected Passenger Vessels (OUPV) endorsement, often called a “six-pack.” It authorizes six or fewer passengers on vessels under 100 gross register tons.1eCFR. 46 CFR 11.467 – Requirements for a National Endorsement as OUPV If your business plan calls for more than six passengers at a time, you need a Master license for inspected vessels, which requires more sea service and a tougher exam.
Medical Certificate
Every applicant and renewing mariner needs a valid medical certificate. For domestic charter work on vessels not subject to STCW conventions, the certificate is good for up to five years; STCW vessels get two.2eCFR. 46 CFR Part 10 Subpart C – Medical Certification The physician completes Coast Guard Form CG-719K and sends it to the National Maritime Center.
TWIC Card
Mariners holding Coast Guard credentials must also carry a Transportation Worker Identification Credential from TSA.3U.S. Coast Guard. Transportation Worker Identification Credential (TWIC) The process involves fingerprinting and a security threat assessment.4Transportation Security Administration. TWIC Letting your TWIC lapse can cost you the mariner credential it supports.
Drug Testing Program
Federal rules require random drug testing for anyone on a passenger vessel who holds a Coast Guard credential or whose duties relate directly to safe operation.5eCFR. 46 CFR Part 16 – Chemical Testing In practice, that’s every captain and deckhand on a charter boat. You’ll need to enroll in a third-party consortium and keep proof of participation; failing to do so can mean credential revocation and civil penalties.
Document the Vessel and Get a Coastwise Endorsement
State registration is not enough for a commercial charter boat. You document the vessel through the Coast Guard’s National Vessel Documentation Center (NVDC) and obtain a Coastwise endorsement, which is the legal authority to carry passengers for hire in U.S. waters. The vessel must measure at least five net tons to qualify for documentation.
Coastwise endorsements are generally available only for U.S.-built vessels, with narrow exceptions for captured, forfeited, or wrecked ones. The owner must also be a U.S. citizen or a qualifying entity with sufficient U.S. ownership.6Office of the Law Revision Counsel. 46 USC 12112 – Coastwise Endorsement If a vessel is rebuilt outside the United States, it permanently loses coastwise eligibility.7eCFR. 46 CFR 67.19 – Coastwise Endorsement
You apply with Form CG-1258. The initial Certificate of Documentation costs $133, and the Coastwise endorsement adds $29.8U.S. Coast Guard. NVDC Table of Fees NVDC processing can take 60 to 120 days, and the vessel cannot legally carry paying passengers until the certificate is on board. Plan your launch date accordingly.
If You Bought a Foreign-Built Boat
The only realistic path for a foreign-built vessel is a Small Vessel Waiver from the Maritime Administration (MARAD). To qualify, the vessel must be at least three years old, limited to no more than 12 passengers for hire, used for passengers only (sport fishing is fine as long as the catch isn’t sold), owned by a U.S. citizen, and at least five net tons. MARAD charges a non-refundable $500 application fee and publishes the request in the Federal Register for a 30-day public comment period. The waiver is denied if existing operators or shipbuilders would suffer undue harm, and each waiver covers no more than two geographic coasts.9Maritime Administration. Small Vessel Waiver Application Instructions
Form the Business Entity
Most charter operators form a limited liability company by filing Articles of Organization with their state’s Secretary of State; some incorporate instead. State filing fees generally run between $50 and $500. An LLC is popular here because passengers, water, and speed combine in ways that make a liability barrier between the business and your personal assets worth having.
Once the state acknowledges the entity, apply for a Federal Employer Identification Number through the IRS website. The EIN is free and issued immediately online, and you’ll need it for a business bank account, payroll, and tax filings.10Internal Revenue Service. Get an Employer Identification Number The IRS recommends forming the state entity first to avoid processing delays.
Buy Commercial Marine Insurance
No lender, marina, or careful operator runs a charter without commercial marine insurance. The core coverage is Protection and Indemnity (P&I), which is liability coverage covering passenger injury or death, crew injury, damage to docks or other vessels, wreck removal, and fines and penalties. P&I is usually the biggest line item because passenger injury claims drive the largest payouts, and a single serious claim can exceed seven figures.
You also need hull and machinery coverage for physical damage to the boat itself. Bareboat operations face stricter underwriting because the insurer is covering liability for an operator the insurer has never met; most carriers require a separate bareboat policy rather than a standard commercial charter form. Crewed charters are more straightforward because the owner controls the risk. Coverage amounts depend on vessel size, passenger capacity, and operating area, and many marinas and ports require proof of insurance before they’ll assign a commercial slip.
Meet Safety and Environmental Rules on Every Trip
The Coast Guard enforces safety standards through inspections and boardings, and penalties bite. Operating in violation of federal safety requirements exposes the owner, operator, or master to civil penalties of up to $5,000 per violation, and the vessel can be held liable too. Operating without a required Certificate of Inspection carries up to $10,000 per day, reduced to $2,000 per day for vessels under 1,600 gross tons.11Office of the Law Revision Counsel. 46 USC 3318 – Penalties
Every charter vessel must carry life jackets for each person on board, serviceable fire extinguishers, visual distress signals, and a sound-producing device. Uninspected passenger vessels (six or fewer passengers) are not on a scheduled inspection cycle, but the Coast Guard can board at any time. Vessels carrying more than six passengers must hold a valid Certificate of Inspection and submit to regular examinations.
Before getting underway on an uninspected vessel, the captain must show every passenger where life jackets are stowed, how to put one on, and where other lifesaving equipment is located, and must post an emergency checklist covering rough weather, man-overboard, and fire procedures.12eCFR. 46 CFR Part 26 – Operations Inspected small passenger vessels have a more detailed briefing requirement that covers emergency exits, survival craft embarkation, ring buoys, and life jacket donning.13eCFR. 46 CFR 185.506 – Passenger Safety Orientation Keep an accurate passenger count for every trip to support search and rescue, and maintain a logbook of maintenance, crew hours, and trip details. Gaps in those records tend to work against you during audits or accident investigations.
On the environmental side, every commercial vessel in U.S. waters is subject to MARPOL discharge rules. The core rule is simple: no plastic goes overboard, anywhere. Other garbage restrictions tighten the closer you are to shore, and stricter rules apply in designated Special Areas.14U.S. Coast Guard. MARPOL Annex V Summary For incidental discharges like bilge water, commercial vessels under 79 feet currently fall under limited interim requirements while full Vessel Incidental Discharge Act regulations are finalized.15US EPA. 2013 Vessel General Permit and Interim Requirements A clear waste management plan and enough trash receptacles on board usually solves the practical problem.
Handle Taxes and State Fishing Licenses
Charter income is business income. Sole proprietors and single-member LLCs report it on Schedule C using activity code 483000 (water transportation) and pay self-employment tax on the net profit.16Internal Revenue Service. Instructions for Schedule C (Form 1040) Partnerships and S-corporations use different forms but pass the income through to the owners.
The vessel itself is depreciable. Under MACRS, commercial boats fall into the 10-year property class.17Internal Revenue Service. Publication 946 – How to Depreciate Property For qualifying property placed in service after January 19, 2025, a 100% bonus depreciation allowance is available, which can let you write off the full cost of a vessel in the year you put it into charter service.18Internal Revenue Service. Topic No. 704 – Depreciation Fuel, dock fees, insurance, maintenance, and crew wages are deductible operating expenses.
A federal excise tax of $3 per passenger applies to commercial vessels with berth or stateroom accommodations for at least 17 passengers on voyages longer than 24 hours, reported on Form 720.19Internal Revenue Service. Instructions for Form 720 (Rev. March 2026) Day-trip fishing and sightseeing charters generally fall below that threshold. State and local sales or excise taxes on charter fares vary widely, so check with your state’s department of revenue.
If the charter involves fishing, most states require a separate commercial fishing guide license on top of your Coast Guard credentials. Annual costs run from roughly $20 to over $1,000 depending on the state, and some states also require a vessel-level fishing license that caps how many anglers can fish from the boat at one time. These are easy to overlook because they’re entirely separate from the federal pipeline, but running trips without them can shut you down just as fast as a missing endorsement.