How large is a charter deposit here

On a skippered day charter it is usually modest, from a few hundred euros to the low thousands, because the person responsible for the boat works for the operator. On a self-driven boat it is proportionally larger. On a longer crewed booking there may be no damage deposit at all, with a provisioning allowance in its place, which is a payment of an entirely different kind.

Is the booking deposit refundable

Usually not, and it is not meant to be. A booking deposit is a part payment that takes the boat off the market for your date, and the operator has turned away other business to hold it. The security deposit is the refundable one. Confusing the two is the most common misunderstanding in charter bookings and it is worth checking which word appears in your confirmation.

Can they take the deposit in cash

It happens, particularly at the smaller end of the market on the quay. It is not automatically improper, but it removes every protection a card gives you and it makes recovery an argument rather than a process. If you agree to it, get a written receipt signed by a named person before the money leaves your hand, and photograph it.

What are the most common deductions

Cleaning, lost equipment and propeller or drive damage from touching bottom. Sand comes aboard on everybody, upholstery stains, snorkels and fenders vanish, and the sandbars off the river mouths on this coast are shallower than they look. None of those are dramatic events, which is exactly why they are the ones that reduce a deposit.

When does the money come back

A cash deposit normally comes back on the quay at the end of the day once the boat has been checked. A card authorisation is released after inspection and then moves at your card issuer's pace, which can be a week or more. On a longer charter with a provisioning allowance, the reconciliation and the balance follow the trip by days rather than hours.

What a charter deposit covers on the Costa del Sol

People use the word deposit for at least four different payments on a charter here, and only one of them is coming back in full. What the security deposit is actually held against, why grounding and cleaning are the two clauses that bite, how cash deposits work on the quay, and what to photograph at both ends.

Ask an operator on the Costa del Sol what the deposit is and you may get four different answers depending on which payment they had in mind. The word is used for a part payment that is never coming back, a refundable hold against damage, a pot of money the crew will spend on your behalf, and occasionally a bond against fuel. They are not the same thing and they do not behave the same way.

Sorting them out before you pay anything is the single most useful piece of preparation for chartering here.

Four payments, one word

Payment	What it is	Refundable?	When it moves
Booking deposit	Part payment securing the date	No, normally	At booking
Balance	The rest of the charter fee	No	Days before, or on the day
Security deposit	Held against damage and loss	Yes, less deductions	Held at handover, released after inspection
Provisioning allowance	Money the crew spend for you	The unspent balance	Before departure, reconciled after
Fuel bond	Held against consumption on some motor charters	Yes, less what you burn	Handover to return

Get your confirmation email to use those words. An operator who writes “deposit” five times and means three different things is not being dishonest, but you will be the one arguing about it later.

What the security deposit is actually held against

Not the boat’s value. The security deposit on a skippered charter is a fund against the small, likely, unglamorous things, and on this coast that list is consistent.

Cleaning beyond normal. Sand is the standard offender, spilled drink on upholstery second. Suncream on white cushions is genuinely difficult to remove and it is a real charge.
Lost equipment. Snorkels, masks, a fender, a boat hook, a paddleboard fin, towels. Small items, deducted at replacement cost.
The tender and its outboard. Frequently the most damaged item on any charter, because guests use it and nobody supervises them.
Grounding, propeller and drive damage. Common here. The sandbars off the river mouths between San Pedro and Marbella shift, the approaches to some of the smaller ports are shallow, and touching bottom at low speed can still bend a prop.
Fuel not replaced, where the contract requires the tank returned as found.
Late return. In July and August day boats run back-to-back slots. A boat that arrives an hour late has cost the operator the sunset departure, and some contracts bill for it.

What it is not held against is you. Injury, illness and your own possessions sit elsewhere, under the passenger liability cover a commercially registered vessel must carry. If an operator is casual about that distinction, revisit whether the boat is properly registered at all — the point is made in a day charter out of Puerto Banús.

The empty aft deck of a motor yacht with folded towels stacked on a seat and an open boarding gate, marina water and a quay behind. — Photograph the deck before anyone steps on it. Cushion stains are the most disputed deduction in day chartering.

Card, transfer or cash

Three mechanisms, and they are not equivalent.

A card authorisation blocks the sum without taking it. It is the cleanest version: nothing is converted, nothing moves, and release is administrative. The cost is credit headroom for as long as it takes.

A transfer actually moves money, and it comes back on the operator’s timetable rather than your bank’s. Ask for a stated number of working days in writing.

Cash on the quay still happens at the smaller end, particularly on self-driven boats and personal watercraft. It is not automatically improper, but it converts a dispute from a process into an argument with no paper behind it. If you agree to it, get a signed written receipt with a name on it and photograph the receipt before you hand anything over. The same warning applies with more force to personal watercraft, where liability is often uncapped — see the jet ski hire rules along these beaches.

Reducing it

Two levers exist here and both are worth asking about.

Take crew. On this coast a skippered charter usually carries a smaller deposit than a self-driven boat of similar value, because the professional aboard carries the responsibility. That is one of the quieter economic arguments in skippered or crewed, and what the difference costs.

Buy a damage waiver. Some operators offer a non-refundable payment that replaces or reduces the held sum. Read what it excludes, because groundings, propellers, the tender and negligence are the usual carve-outs, and those are precisely the events it would be useful for.

The handover routine that protects it

Ten minutes at each end, and it settles almost every dispute.

Photograph the deck, the cockpit seating and the cabin interior before anybody boards.
Photograph the fuel gauge and the engine hours if they are displayed.
Count the inventory out loud with the skipper: fenders, snorkelling kit, paddleboards, towels, cushions, the tender and its fuel.
Note any existing damage on the handover sheet, including scuffs on the passerelle and marks on the bathing platform.
Repeat the whole set at return, in the same order, before you step ashore.
Ask when the release will be processed and get it confirmed by email that day.

Do it visibly and pleasantly. A skipper who can see you photographing the deck at the start has no interest in claiming for something that was already there, and that is most of the value of the exercise.

The deposit that causes trouble is almost never the large one on a good boat. It is the small cash one, taken on a pontoon with no paperwork, on the cheapest option available in the last week of August.