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Running a ship’s kitty: settle crew expenses fairly

NauticCalc on iPhone — matching the topic of this article.

NauticCalc app screenshot

Why a ship’s kitty avoids arguments

On a trip one person pays for the diesel, another for the big grocery run, someone else for the harbour fee. Without a system, by the end no one remembers who laid out what — and a lovely trip turns into a tedious reckoning. A ship’s kitty records the expenses and settles up fairly at the end.

Two models

  • Shared kitty: everyone pays in an amount at the start, expenses come out of the kitty. At the end the remainder is split. Simple, but you have to front the money.
  • Individual settlement: everyone pays whatever comes up, and it is all reconciled at the end. No advance needed, but it takes clean record-keeping.

Both work — what matters is that every expense is recorded with amount, payer and (optionally) participants.

Working out shares correctly

Not every expense splits the same way:

  • Evenly: diesel, harbour, shared meals → across everyone.
  • Subgroup: only three used the marina sauna → just those three.
  • Individually: the beer for one person → not split at all.

At the end of the trip each person has a simple balance: paid in/laid out minus share = gets back or owes. This is exactly the reckoning the Ship’s Kitty takes off your hands — and because it runs offline, you need no signal for it.

Ship's kitty: fair settlement at the end of the trip
Ship's kitty: fair settlement at the end of the trip

Record cleanly — right away, not later

The most common mistake is trying to enter expenses “later”. After a week the receipts and the memory are gone. Better: record the moment you pay, amount and payer, done. That fits well with the habit of keeping the Logbook anyway.

Common mistakes

  • Putting off expenses and guessing later.
  • Not noting participants, even though not everyone was involved.
  • Mixing cash and card without recording who actually paid.
  • Rounding at the end that does not add up — better to record it exactly.

Conclusion

A ship’s kitty is not about mistrust but convenience: it keeps track of small amounts so that no one has to recalculate or argue at the end. Whether a shared kitty or individual settlement — whoever records every expense straight away with payer and share splits it fairly in minutes at the end of the trip.

Read more: Ship’s Kitty · Logbook · Download the app

How it looks in the app

How it looks in the app
How it looks in the app
How it looks in the app
How it looks in the app