The real cost of owning a boat

A well-used 40-foot cruising sailboat from the 1990s runs $60,000 to $100,000, while a new offshore-equipped one tops $425,000. Buy used and someone else has already eaten the depreciation.

Recent used 40-footers (2021 to 2025 hulls) run $175,000 to $390,000 against a new base of $255,000 to $425,000. Cruising sailboats sell for roughly 45 to 60 percent of their original new price after the first owner, which is why the smart cruising money is almost always a boat someone else bought new.

Source: boatwork.co monohull ownership cost guide.

The survey is not optional: a pre-purchase marine survey runs $1,200 to $2,500 on a 40-footer, and it routinely finds $5,000 to $30,000 of deferred maintenance.

The survey plus a sea trial is the cheapest money you spend on the whole deal, because it is what stops you from buying a $20,000 problem you cannot see. Budget it, plus sales tax and registration, on top of the sticker price, not out of it.

Source: boatwork.co monohull ownership cost guide.

A new sailboat loses 15 to 25 percent of its value in the first year and 40 to 50 percent over the first 8 to 10 years, then depreciation slows to under 5 percent a year.

About half of that early loss lands in the first two or three years. The practical takeaway: a well-kept 10 to 15 year old boat has already shed the steepest depreciation, so your dollars buy far more boat and the value you are left holding falls far more slowly.

Source: BetterSailing depreciation analysis.

A 40-foot cruising sailboat costs $20,000 to $33,000 a year to own before you leave the dock, about $55 to $90 a day, and that is if you paid cash.

Finance the boat and the same 40-footer runs $43,800 to $73,000 a year, or $120 to $200 a day. This is the number behind the old joke that BOAT stands for Break Out Another Thousand: the purchase price is the down payment on a lifestyle, not the cost of it.

Source: boatwork.co monohull ownership cost guide.

A slip is priced by the foot and by the coast: a 40-footer runs $22 to $40 per foot per month in Florida but $8 to $15 in the Pacific Northwest, a swing of roughly $3,800 to $19,200 a year for the same boat.

Region moves this line item more than boat size does. A mooring ball or dry storage cuts it further, and for powerboats an in-water dock runs $1,000 to $5,000 or more per season with indoor rack storage about 1.5 times that. Where you keep the boat is a bigger financial decision than which boat you keep.

Source: boatwork.co (slip by region) and Discover Boating (dock and rack).

The 10 percent rule is a myth: budgeting 10 percent of a boat's value for annual maintenance is too high for a new boat and too low for a neglected one. 1.5 to 3 percent of current hull value is the honest number.

On a $200,000 boat that is $3,000 to $6,000 a year, not $20,000. Cruiser Behan Gifford of SV Totem checked the rule against six years of her own spending and found her real costs were a mere shadow of that figure. What actually drives maintenance is how much you do yourself and what shape the boat was in when you bought it.

Source: boatwork.co and SV Totem (Behan Gifford).

Haul-out and insurance are the quiet annual bills: winter shrink-wrap runs $10 to $15 a foot (about $400 to $600 for a 40-footer) and inside storage about $50 a foot, on top of insurance that tracks the boat's value.

Stack slip, storage, insurance, maintenance, and haul-out and all-in annual ownership tends to land around 10 to 15 percent of the boat's market value. On one real cruising budget, insurance alone ran about $500 a month, the single largest fixed cost.

Source: Discover Boating and Gone with the Wynns.

Standing rigging has an expiration date: it should be replaced every 10 to 15 years, and it costs $2,000 to $5,000 under 30 feet, $5,000 to $10,000 at 30 to 50 feet, and $10,000 to $20,000 above 50.

Wire rigging lasts 10 to 12 years, rod 15 to 20, and offshore boats replace on the shorter end. It is not optional maintenance, it is the thing holding your mast up, and it comes due on a schedule whether or not the budget was ready for it. Size your solar and house bank with the same do-the-math honesty using our free calculator.

Source: Improve Sailing rigging cost guide. Size a sailboat battery and solar system →

A repower is the big one: dropping a new mid-range diesel into a 30 to 45 foot boat runs $40,000 to $80,000, and a fully itemized project can pass $109,000.

The engine itself is only 40 to 60 percent of the bill. The rest is labor, stern gear, exhaust, wiring, and the structural work to make the new engine fit. On an older cruising boat this is the repair that most often forces the keep-it-or-walk-away decision, and the one buyers most often forget to price in.

Source: Wave Inboard Motors repower cost breakdown.

The most lopsided cost in boating: the average out-of-pocket tow costs $1,091, while a BoatUS unlimited towing membership is $109 a year in freshwater or $175 in salt.

One breakdown, one grounding, one dead engine at the wrong moment, and a single unmembered tow bill is more than a decade of the membership. Very few ownership costs have a payback this obvious, which is why it is the one line almost every experienced owner carries.

Source: BoatUS by the Numbers 2025.

One full-time liveaboard couple, Nikki and Jason Wynn, averaged $2,800 a month to live and cruise aboard their sailboat, and their dockage was just $124 of it.

Across 2017 to 2019 their biggest fixed cost was insurance at $500 a month, repairs and maintenance ran $396, and fuel just $112. The reason the marina line was so small is that they anchored out instead of paying for a slip, which is the single biggest lever a cruiser has on the monthly budget.

Source: Gone with the Wynns real cruising budget. Size the anchor and scope for anchoring out →

Across real published liveaboard budgets on 38 to 48 foot monohulls, the all-in average is about $3,433 a month, ranging from roughly $2,100 with a paid-off boat in the Pacific Northwest to $6,200 financed in Florida.

That is about $41,200 a year in the middle. The spread is not mostly about lifestyle, it is about two decisions made before you ever cast off: whether the boat is paid for, and where you keep it. Both move the number more than how often you eat ashore.

Source: boatwork.co liveaboard cost data.

Ownership only pencils out above about 16 to 20 weeks of use a year. The average US boat owner uses their boat 54 days, roughly 7.7 weeks.

Put those two numbers side by side and most owners are, on paper, well short of the point where owning beats chartering. Below the crossover, chartering someone else's boat and letting them carry the slip, the insurance, and the repairs is the rational move. People buy boats anyway, which tells you ownership was never really a spreadsheet decision.

Source: Vital Charters own-versus-charter analysis.

Owning a boat is a lifestyle purchase, not an investment: plan for 10 to 15 percent of the boat's value every year, keep a repair fund the size of a small car, and buy used so someone else takes the depreciation.

None of the numbers here are meant to talk anyone out of it. They are meant to make the yes an informed one, so the surprise costs are line items you planned for instead of the thing that quietly ends the dream. The cheapest boat is almost always a well-surveyed used one you can maintain yourself.

Source: Sorted Gear analysis of the sourced figures above.