You are handed a boat credit card in the chief stew name for a provisioning run in Antibes. It has no obvious limit and no obvious rules. Two hours later you have spent four thousand euros across six shops, and the accountant ashore will see one line on a statement in three weeks with no idea what any of it was.
Why cards need more discipline than cash
Cash disciplines you because it runs out. A card does not. The card carries the same accountability as cash but removes the natural brake, so the controls have to be written rather than felt.
The accounting trail
Every card transaction needs to be traceable from the statement back to the shelf. The chain is:
Statement line → receipt → log entry → budget line → the item it bought.
If any link is missing, the finance side ashore cannot reconcile, and the question comes back to you weeks later when you have forgotten.
Practical card rules
- The card belongs to the yacht, whoever the name on it. Never use it for anything personal, even intending to repay.
- Receipt for every swipe, immediately, photographed on the spot.
- Annotate the receipt while you still remember: which department, which budget line, what it was for, whose request.
- Know your limit and your authority. A single transaction limit and a category restriction are common; a spend above your authority needs prior approval from the purser or captain.
- Never share the card or its PIN. If someone else needs to spend, they get their own authority or you go with them.
- Reconcile against the statement when it arrives — that is when errors, duplicates and foreign-exchange surprises surface.
Cash versus card versus purchase order
| Petty cash | Crew card | Purchase order | |
|---|---|---|---|
| Best for | Small, immediate, local spend | Mid-value spend ashore, online orders | Larger, planned, supplier-account spend |
| Control | Imprest reconciliation | Statement + receipts | Approval before commitment |
| Speed | Instant | Instant | Slower, deliberate |
| Risk | Loss, theft, no receipt | Overspend, weak coding | Delay if raised late |
Choosing the wrong instrument is a common junior error. A 12,000-euro linen order is not a card purchase; it is a purchase order.
Onboard Notes
- Online purchasing creates a delivery problem, not just a payment one. Order to an address the boat can actually reach — the agent, the marina office, the shipyard — and confirm before you buy.
- Foreign-exchange and cash-advance fees on cards are real money from the owner budget. Prefer the local currency option at the terminal and avoid ATM withdrawals on a credit card.
- If a card is lost or a transaction looks wrong, report it to the purser or captain the same day. Speed limits the damage.
- Keep your annotations even when the yacht uses an app. Apps capture the amount; only you can capture the reason.
- Owner money is not your money and not the boat money. Spend it as if you will be asked to justify every line, because eventually you will be.