The captain's license is the cheap part of running charters

Quick answer: A Coast Guard six-pack license needs 360 logged days on the water plus paperwork and a few hundred dollars in fees. Get it, then captain somebody else's boat for a season before you buy your own. The worked season below shows why.

Trip fifty-nine. In the example season further down, that's the first charter where the captain stops working for the boat and starts working for himself. Everything before it just keeps the lights on at the marina.

This is general education, not financial, legal or tax advice. Before you sign for a boat, talk to a CPA, a marine insurance broker and, if you're forming a company, an attorney.

The license itself

Almost everybody starts with the OUPV, Operator of Uninspected Passenger Vessels. Everyone calls it the six-pack. It lets you carry up to six paying passengers on a boat that doesn't hold a Coast Guard Certificate of Inspection. That covers the typical center console or sportfisher charter. You have to be at least 18.

The requirements, in the order they'll bite you:

• Sea service. 360 days underway, and at least 90 of them in the last three years. A "day" means four hours or more on the water. For a near-coastal endorsement, which you need to fish offshore, 90 of those days have to be on ocean or near-coastal waters, not the lake.
• Proof. Days on your own boat count, but you document them on a sea service form (CG-719S) with proof you own the boat. Days on a buddy's boat need his signature. Start logging now, with dates, hours and waters. Rebuilding three summers from memory in a panic is miserable.
• The exam. Rules of the road, navigation, deck general and chart plotting. You can test at a Coast Guard Regional Exam Center, or take an approved captain's course that gives the exam at the end. Most people pay for the course, because the rules-of-the-road section fails people who "know boats."
• The rest of the file. A TWIC card, a Coast Guard physical, a drug test, a current first aid and CPR certificate, and the application itself, all sent to the National Maritime Center.

The Coast Guard's own fees for an original officer endorsement have been $100 for evaluation, $110 for the exam and $45 for issuance. Check the current NMC fee table before you pay, because fees change. The TWIC, the physical, the drug test and the course are all separate costs on top of that.

Want to carry more than six? That takes a Master license and an inspected vessel. For 100 tons near-coastal you need 720 days of sea service. That's a second business with a second set of problems. Start with the six-pack.

The license doesn't make it a business

Once you take money from passengers, the boat is commercial. That brings a stack of obligations the course barely mentions:

• Enrollment in a random drug testing program, which is required for passenger-for-hire operators, not optional.
• Commercial marine insurance, meaning hull coverage plus protection and indemnity for your passengers. Your recreational policy almost certainly excludes paid charters. Read the exclusions page before your first booking, not after your first claim.
• State licenses for guiding or charter fishing, which vary a lot from one coast to the next.
• Federal for-hire permits if you target certain species. Tuna, billfish and sharks fall under a highly migratory species charter permit, and some regional fisheries limit how many for-hire permits exist at all. In those places you buy one from somebody leaving, or you don't fish.

Call your state's fish and wildlife agency and your regional NOAA Fisheries office before you plan a season around a species you may not be allowed to sell trips for.

A real season, run through a calculator

These are example numbers, not quotes. Swap in your own harbor's rates. The shape of the math matters more than the figures.

Say your season runs May through September. That's about 150 calendar days. Weather kills some of them. Tuesdays in June are thin. You end up with 60 full-day trips booked and run. That's a good year, not a bad one.

Revenue: 60 trips × $900 = $54,000

Cost of every trip you run:

• Fuel: $200
• Mate's day pay: $150 (the tips go to the mate, as they should)
• Bait, ice, lost tackle: $60
• Per trip: $410. Across 60 trips: $24,600

Costs that arrive whether you fish or not:

• Slip: $6,000
• Insurance: $4,000
• Maintenance and haul-out: $5,000
• Drug program, licenses, permits, website: $1,500
• Boat payment: $12,000
• Fixed total: $28,500

What's left: $54,000 − $24,600 − $28,500 = $900.

Nine hundred dollars. For a summer of 5 a.m. alarms and hosing fish blood off the deck. And that's before self-employment tax, which is 15.3 percent on net earnings, because nobody is withholding for you now. If a steady paycheck has always handled that, your payslip, your tax code, and where the money went shows what the employer was quietly covering.

Now find the break-even. Every trip brings in $900 and costs $410, so it contributes $490. Divide the $28,500 in fixed costs by $490 and you get 58.2. Trip 59 is the first one that pays you. Cancel four trips for a week of small-craft advisories and you've lost money on the year.

Where the math swings

The same season looks completely different with one change.

No boat payment. Run a paid-off boat and fixed costs drop to $16,500. Break-even falls to about 34 trips, and 60 trips leaves you around $12,900 before tax. The payment was the whole problem, which is the same lesson as the car payment isn't the price, with a bigger engine.

Higher price, fewer trips. A captain who's built a reputation charges more and books out. Every $100 added to the trip price, across 60 trips, is $6,000 dropped straight to the bottom line. Reputation is the only lever that moves the number without costing you something.

Two trips a day. Half-day morning and afternoon charters fill the calendar. They also double the wear on your engines and on you. Plenty of captains try this for one summer and don't try it again.

The clear winner for year one

Captain for an owner first. Plenty of boat owners want a licensed captain to run their charters, and they'll pay a day rate. Say it's $300 a day for the same 60 days. That's $18,000 with no slip bill, no insurance premium and no haul-out. You build a client list and learn which docks and which months actually book. And you log more sea time toward a Master license if you ever want one.

Then buy the boat, if you still want it, with a year of real numbers from your own harbor instead of a spreadsheet full of hope.

Two things to set up before either path. Charter income arrives in five months and has to last twelve, so build an emergency fund that works as insurance before you quit anything. And if the down payment is coming from a buyout or an inheritance, read what to do with a lump sum before it quietly disappears first. A boat is a great place to lose a lump sum slowly.

Your pre-launch checklist

• Sea service log started today, with dates, hours and waters
• Captain's course picked, or an exam date booked at the REC
• TWIC, physical, drug test and CPR on the calendar
• State and federal permit rules confirmed for your target species
• A commercial insurance quote in hand, exclusions read
• Your own worksheet, with your harbor's real slip rate and a trip count you'd bet on

Run that last line with 45 trips instead of 60. If the business still works, you might have one. If it only works in a perfect summer, you know what fishing thinks of perfect summers.