Guide · Booking rules

Security deposit for a holiday rental: worth it, allowed and how much?

Updated 9 September 2026 · Approx. 6 min read

The red wine stain on the light sofa, the vanished key, the party nobody mentioned beforehand: anyone who rents out knows the risk. A security deposit is the obvious remedy, and at the same time one of the points where guests abandon a booking. This article shows when it really pays off, which amounts are customary, which way of collecting creates the least friction and where the legal limits are.

A security deposit is not a down payment: the difference that decides everything

The two terms are constantly mixed up, in conversations as well as in booking tools. Yet they are two completely different things:

The practical consequence is often overlooked: the security deposit does not belong inside the total. If your booking flow shows “Total: €970” and €300 of that is the deposit, that is simply stated incorrectly: the guest actually pays €670 for the stay and additionally lodges €300 as security. Smoobu keeps the two apart as well, in two separate fields: prepayment for the down payment, deposit for the security deposit. We measured that on the interface on 12 August 2026. On the same day we also measured that a down payment amount we pass to Smoobu is replaced by Smoobu's own rule, while a deposit amount passed the same way is left as it is. Throwing both into one pot produces wrong invoices and confused guests.

Is a security deposit worth it at all?

The honest answer: it depends on your property, and most hosts decide from the gut rather than from the numbers. What speaks for a deposit:

• It covers real damage without you having to chase the money.
• It filters, and that is often the actual benefit. Someone looking for a party flat books where no deposit is due. This effect kicks in before anyone even books.
• It increases care. Someone who has lodged €300 is more likely to put the wine glass on a coaster.

What speaks against it:

• Friction in the booking process. Every additional condition costs bookings, especially when it comes as a surprise. Anyone working on more direct bookings pays close attention to every step the guest does not understand immediately.
• Effort. Collecting, holding, refunding, documenting: with 60 bookings a year that is 120 additional transactions.
• Arguments about the refund, and those end up in a review if things go wrong.

Usually worth it for large units aimed at groups, for high-end furnishings (sauna, hot tub, designer furniture, expensive technology), for party regions and for dates such as New Year's Eve. Usually not worth it for small units for couples and families, for guests who come back every year and for short stays of one or two nights.

How much? Practical values from the Alpine region

As a rule of thumb the value of one to two nights works well: high enough to have an effect, low enough not to scare anyone off. Use round amounts: €200 feels like a rule, €187.50 feels arbitrary.

The three ways to collect it

The legal side: four points worth getting right

The most widespread misconception first: “a maximum of three months' rent”. That figure comes from residential tenancy law (in Germany section 551 BGB), which is written for permanent tenancies. For holiday accommodation it is not applied in practice, neither in Germany nor in Austria, and no fixed statutory ceiling is known for either country. That does not mean anything goes:

1. Proportionality. Your deposit sits in your standard booking terms like any other clause. If the amount bears no reasonable relation to the booking value (a €500 deposit on a €300 booking), the clause is easy to attack, and then you have nothing at all in case of damage.
2. Visible before booking. Like the down payment and the cancellation terms, the deposit is part of what the guest agrees to. Anyone doing this carefully shows it before the booking is completed, not only in the confirmation email and certainly not first at the door. What the guest never saw is hard to insist on afterwards.
3. Only genuine damage. Common practice is to deduct actual damage and not the normal wear of a stay. A worn carpet after eight years is wear; a burn hole in it is damage. In a dispute the burden of proof usually sits with you, which is why an inventory list and dated photos are worth the effort.
4. State a deadline and keep it. No statutory refund deadline is known for holiday lets; 14 days after departure is the figure people work with. Name it in your terms and keep to it. If you withhold something, itemise it in writing, with a photo and an amount.

These four points describe how experienced hosts handle it, not a legal opinion. The deposit lives in your standard booking terms, and those are worth having checked by a lawyer once, together with your down payment and cancellation clauses.

Tax: why the deposit does not belong on the invoice

As long as the deposit is merely lodged, it is in practice not treated as consideration for a service. It is therefore handled outside VAT and has no place in the total price or in the tax breakdown of your invoice. If you keep it because of damage, it usually counts as genuine compensation, which in principle is treated the same way. It looks different if you use it to settle a service, for example an additionally agreed special cleaning.

That is exactly why clean separation in the booking tool is not a formality: as soon as the deposit slips into the total price, it sits in the VAT base, and the invoice shows more than the guest pays for the stay. The second item that likes to disappear into the nightly rate needs the same care: tourist tax and city tax are shown separately in practice, with their own tax rate. Clarify your specific case with your tax adviser before you set your invoices up this way.

Checklist: can your booking tool do this?

• Is the deposit handled as a separate item outside the total price, and kept out of the VAT breakdown?
• Is it clearly marked as refundable for the guest, rather than just sitting there as an amount?
• Can the amount be set per property: studio without, chalet with €500?
• Can you choose the payment method (cash on arrival or bank transfer before arrival) and is it shown to the guest?
• Does the deposit appear in the booking step, not only in the confirmation?
• Does it land in the correct field of your system (in Smoobu: deposit, not prepayment)?

Frequently asked questions

How much security deposit is normal for a vacation rental?

It depends more on the property than on the region. A studio or apartment for two often runs without a deposit or up to €150, a holiday apartment for four to six people sits at €200 to €300, and a large chalet or group house from eight people at €500 to €1,000. A hot tub, a sauna or expensive technology usually adds €100 to €200 on top, and pure group bookings over New Year's Eve are often set at double. Keep the amount in reasonable proportion to the booking value: a deposit that outweighs the stay itself is easy to attack as a standard-terms clause, and then you have nothing at all in case of damage.

What is the difference between a security deposit and a down payment?

The down payment is part of the travel price: it goes into the total, carries VAT like the service and is offset against the final invoice. The security deposit is collateral for possible damage: in practice it is not treated as consideration, does not belong in the total price, is handled outside VAT and is refunded in full after departure if nothing happened.

Is a damage deposit the same as a security deposit?

In holiday letting both words describe the same thing: an amount the guest lodges as collateral and gets back after departure. Damage deposit, security deposit and breakage deposit are used interchangeably, and none of them is a down payment. Whatever you call it on your page, treat it the same way: separate from the total price, marked as refundable and shown before the guest completes the booking.

When is a security deposit refunded?

No statutory deadline is known for holiday lets, and 14 days after departure is the customary figure. Name that deadline in your terms yourself and keep to it. Send the money back the way it came in and put the booking number in the transfer reference, so the guest can place it. If you withhold part of it, send the reason separately on the day you transfer the rest: what was damaged, one photo, one amount, and the sum that is on its way back. Only actual damage belongs in that list, not the normal wear and tear of a stay.

Can I hold the security deposit on a credit card?

Yes, through a pre-authorisation: the amount is only reserved on the card and never collected, and the payment provider releases it again after departure. For the guest this is the most comfortable way, because no money moves back and forth. You need a terminal or a payment provider for it, and not every guest has a credit card. The reservation does not hold indefinitely either: how long it holds depends on the card and the provider. With a long lead time between booking and arrival you would have to place the hold shortly before arrival rather than at the moment of booking, which is one more step for both sides and needs a card that is still valid by then.

Does a security deposit have to be taxed?

While the deposit is merely lodged, it is in practice not treated as consideration for a service. What matters is what you keep it for. Withheld as compensation for damage, it is in practice treated as outside VAT, because there is no service behind it. Used to pay for something you agreed with the guest, for example an additionally booked special cleaning, it is in practice handled as payment for that service and shown on the invoice with the tax rate that applies to it. Have your own case checked by a tax adviser before you settle a deposit that way for the first time.

Note: this article is for general information and does not replace legal or tax advice.