Water recreation & marinas
Books and taxes for jet ski rental businesses.
Thirty-minute and hourly rental slots, damage waiver upsells, a fleet that eats impellers and hulls every season, and insurance that costs more than the machines. Gus sorts all of it, an accountant checks every transaction, and you get one number a month.
- From $197 a month
- An accountant on every transaction
- Cancel whenever
August made $16,200. Two machines needed new impellers this month after running through the shallows, so I logged that as fleet repair, not routine maintenance.
- Square, hourly rental slotsRental slot sales
- Damage waiver upsellsWaiver fee income
- Kept deposit, hull damageForfeited deposits
- RiverSide Marine parts orderFleet repair and parts
- Marine liability insuranceInsurance
Why your books are different
A jet ski rental business's books go wrong in the same handful of places.
A generalist sees deposits and bills. This business is thirty-minute rental slots, a damage waiver fee that most renters buy, a fleet that gets beat up fast, and insurance costs that run heavier than almost any other rental business on this list. When the books do not know that, real profit per machine stays hidden.
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1
Damage waiver fees get lumped into the rental price
A waiver fee charged on top of the rental rate is really a separate product, protecting the renter from a damage deposit claim. Mixed into the base rental price, nobody can see how much of the day's income actually came from waivers.
What we doKeeps waiver fee income in its own line, separate from the base rental charge, so both are visible on their own. -
2
A damage deposit gets counted as income too early
A hold placed on a renter's card for possible hull or engine damage is not income the day it is charged. Counted as revenue right away, refunds later make a busy month look like it lost money.
What we doHolds deposits separately and only books a kept deposit as income once damage is confirmed and the hold is actually kept. -
3
Impellers and hull repairs disappear into general maintenance
Jet skis run hard in shallow water take a beating on impellers, hulls, and jet pumps. Filed the same as an oil change, these frequent, real repair costs make it hard to see what keeping the fleet running actually costs.
What we doKeeps fleet repair and parts costs in a steady line, so the real cost of running the fleet is visible month to month. -
4
Insurance looks like a flat annual cost
Jet ski rental insurance is one of the highest costs in this business relative to revenue, and if it is paid annually and buried in a general insurance line, nobody sees what it actually costs against a busy summer.
What we doTracks insurance cost against the season's income, so the real cost of coverage is visible, not just a number that shows up once a year. -
5
A rained-out or red-flag day looks like lost business
Beach closures for weather, red flag warnings, or algae advisories can wipe out a day of bookings with no notice, and one bad stretch can spook an owner into cutting the wrong cost.
What we doTracks the month against the season, so a closure-driven slow stretch reads as expected, not as a demand problem.
Your categories
The categories Gus keeps for a jet ski rental business.
Set up once for how rentals get paid and what the fleet costs to run. You never pick a category. He does, and an accountant checks it.
Money in
- Rental slot salesThirty-minute and hourly rental slots sold at the launch or booked ahead.
- Waiver fee incomeThe optional damage waiver most renters buy on top of the rental.
- Forfeited depositsDamage deposits that were actually kept for hull or engine damage.
- Guided tour add-onsGroup jet ski tours booked as a premium option.
Money out
- Fleet repair and partsImpellers, hulls, and jet pumps repaired after regular wear.
- FuelFuel for the fleet, tracked separately from repair costs.
- InsuranceLiability and hull coverage, one of the largest costs in this business.
- Trailer and transport costsFuel and upkeep for trailers moving machines between launch sites.
- Life jackets and safety gearPFDs and required safety equipment for renters.
- Beach and launch site feesParking, permit, and site access costs for the rental location.
What we watch for you
- Waiver attach rate
How much of rental income comes from waiver fees, since it is a real product line, not an add-on rounding error.
- Repair cost per machine
Fleet repair costs against the number of machines running, so a heavy repair season gets caught early.
- Insurance as a share of revenue
Coverage cost against income for the season, since it is one of the biggest line items in this business.
- The set-aside
What you will owe, tracked every month, so tax time is a number you already knew.
Ask Gus
Things jet ski rental owners ask Gus.
Text him like you would text anybody. He answers in plain English, and when a question is above his pay grade, an accountant looks and gets back to you.
About a fifth of this month's total. I keep it in its own line so you can see it clearly instead of it hiding inside the rental price.
I moved it out of held deposits and into income for the month it was kept, since it is not really a deposit anymore once you keep it.
For this business, yes, insurance runs heavy. I track it against the season so it does not look like a one-time disaster when it lands.
The tax side
The tax side of a jet ski rental business.
Most of what goes wrong here is deposits counted too early and repair costs that pile up quietly all season. Getting the categories right most of the year makes the return simpler.
What your return has to get right
Your accountant signs it, so it gets done right the first time.
- Fleet depreciationJet skis and trailers bought for the rental fleet can usually be written off in the year they are bought, up to current Section 179 and bonus depreciation limits, or spread out over time depending on the year.
- Sales tax on rentals and waiver feesWhether rentals and damage waiver fees owe state or local sales tax varies by state and is worth checking locally. Gus keeps both split out for the accountant to apply correctly.
- Repair versus improvementRoutine impeller and hull repair is usually a deductible expense the year it happens. A major rebuild that extends a machine's life can sometimes be treated differently, so the accountant reviews larger repair bills.
- The pass-through deductionMost owner-operators can take up to 20 percent of business profit off their taxable income. It comes out right when rentals, waivers, and repair costs are tracked correctly all season.
Deductions jet ski rental businesses miss
Your bookkeeper knows what to look for in your statements. You never have to.
- Impeller and jet pump repair
- Hull and fiberglass repair
- Fuel for the fleet
- Life jackets and safety gear
- Trailer tires and hitches
- Liability insurance
- Beach and launch permits
- Waiver and rental agreement forms
- Radios for safety communication
- Marketing and social ads
- Storage rental for the off season
- First aid supplies
General information about 2026 federal rules, not advice for your business. Your accountant looks at your actual numbers before anything gets filed.
All year, not just April
A jet ski rental year, kept every month.
The season peaks in a handful of hot months and goes quiet the rest of the year. Taxes come on their own schedule. Your team keeps you ahead of both. Every month in between, your bookkeeper closes the books and speaks up the moment something looks off.
- January
Plan the year
Last year's return gets started, and you get a monthly set-aside so tax time is already handled before the season books up.
- April
Filed. Done.
Your return is filed and signed, ahead of the spring rush of bookings.
- July
Halfway check
Where you stand, what you will owe, and whether summer rentals are on pace to cover insurance and off-season costs.
- October
Before the fleet goes into storage
Before machines get racked for winter, Gus looks at fleet purchases and repairs worth making before December.
What you get
What you pay depends on what your business needs, and it does not move after that, busy season or slow. No hourly bills, no surprise invoices, no setup fee.
Book a call- Monthly bookkeeping
Every transaction sorted into categories set up for jet ski rental businesses. You never categorize a thing.
- An accountant checks every transaction
Real review, every month, before your books close. Not a spot check.
- Your business tax return, filed
Prepared, reviewed, and signed by that same accountant every year.
- The monthly number
What you made, what you spent, what to set aside for taxes.
- Your own bookkeeper
A real person assigned to your business, in the app whenever you need them. No hold music.
- On your books all year
Every month, not just in April. Your team speaks up whenever something is worth your attention.
- Cancel any time
No contract. No cancellation call. Your books are yours.
Straight answers
Questions jet ski rental owners ask first.
How does Gus handle our damage waiver fee income?
It stays in its own line, separate from the base rental charge, so you can see how much of the day's money came from waivers versus the rental itself.
A renter's deposit got kept for engine damage. How does that get booked?
It moves out of held deposits and into income once it is actually kept, not the day it was first charged. That keeps a busy month with a few damage claims from looking distorted.
Our insurance costs feel huge compared to other rental businesses. Is that normal?
Yes, insurance tends to run heavier in this business than in most rental trades. Gus tracks it against the season so it reads as expected, not as a red flag.
We're behind on sorting last season's bookings. Can we still start now?
Yes. Send the bank and card processor statements you have. Gus sorts them, the accountant checks them, and most owners know where they stand inside a week.
Do you track how much each machine in the fleet earns?
Gus can keep fuel, repairs, and rental income visible enough to see the fleet's overall performance. Tracking profit machine by machine in detail is a bigger project than the monthly bookkeeping covers.
Do you handle the boater safety course renters need?
No. That is a state requirement between the renter and the state, not a bookkeeping task. Gus tracks the cost if the business provides the course, but not the certification itself.
Is a real accountant checking my books?
Yes. You get your own bookkeeper, Gus does the first pass on every transaction, and an accountant checks every one before your month closes. That same accountant prepares, signs, and files your business return. Goatkeeper is not a CPA firm, and we never pretend a person looked when they did not.
What does it cost, and can I cancel?
It starts at $197 a month, depending on what your business needs. No setup fee, no hourly bills, no contract. Cancel any time from the app, and your books go with you.
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What makes a bookkeeper worth paying for Every business we keep books for
Book a call
Pick a time. That's the whole signup.
Fifteen minutes with a real person on our team. They look at where your books are, tell you straight what it takes to get caught up, and get you set up on the spot if it fits.
- $197 a month to start
- An accountant on every transaction
- Cancel whenever