The short version
Almost every rental company at Phuket Airport will block a security deposit on a credit card in the main driver's name when you collect the car. It is not a payment. The money stays in your account but you can't spend it until the company releases the hold, which usually happens a few days to two weeks after you return the car.
Most problems at the desk come down to three things: the card is a debit card, the card is in someone else's name, or there isn't enough room on the limit. Sort those out before you fly and pick-up is usually a ten-minute job.
How much is the deposit?
There is no single figure – it depends on the company, the car group and the cover you choose. As a rough guide from the suppliers' own published terms:
| Supplier (Phuket Airport) | What they publish |
|---|---|
| National (Enterprise group) | THB 5,000 security deposit for all car groups, taken together with the estimated rental cost at pick-up |
| Avis | With the included CDW and theft protection, your liability (the excess) is roughly THB 8,000–15,000 depending on the car group |
| Thai Rent a Car | Credit card in the main driver's name; the deposit varies by car class (customers commonly report around THB 5,000) |
Bigger cars – vans, large SUVs, luxury and convertibles – normally carry a higher deposit than an economy hatchback. If you buy the supplier's own zero-excess cover at the desk, some companies lower the deposit too. The exact amount for your offer is in the rental conditions before you pay; it is worth reading that line rather than relying on any general figure, including ours.
Deposit, excess and rental price are three different amounts
These get mixed up all the time, so it helps to separate them:
- Rental price – what you pay for the days, cover and extras. You may have paid this online already, or part of it at the desk.
- Excess – the most you would have to pay if the car is damaged or stolen, under the CDW and theft protection included in most offers. It is a limit, not a charge.
- Deposit – a temporary hold the company places on your card to make sure it can recover fuel, fines, late-return charges or damage up to the excess.
The deposit is often set at the same level as the excess, but not always. A company can, for example, hold THB 5,000 while your excess is THB 10,000. Our Car hire insurance in Thailand explained explains the excess in more detail.
Credit card or debit card?
Plan on a credit card. The big brands at HKT say so clearly: the Enterprise group (which runs National at the airport) accepts Visa, Mastercard and American Express credit cards in the renter's name and does not accept prepaid cards, virtual cards or cash for the deposit. Debit cards can only be used there to settle what you owe at the end of the rental. Sixt says the same on its payment pages: a credit card is required for the pre-authorisation.
Why so strict? A hold on a credit card is easy for the company to adjust or capture if something goes wrong. A debit card hold takes real money out of your current account and some banks don't support it properly, which leads to failed holds at the counter late at night.
A few Thai companies are more flexible and may accept a debit card or a cash deposit, sometimes with a higher amount. If you only have a debit card, check the "accepted cards" line in the conditions before you book and choose an offer that says it accepts them – don't assume the desk will make an exception.
Cards that cause problems
- A card in your partner's name. The card must belong to the main driver on the contract. Adding your partner as the main driver, or as an additional driver, does not change this unless they are also the main driver.
- Virtual and app-only cards. Phone-wallet cards and virtual cards are usually refused because there is no physical card to swipe and check.
- Prepaid travel cards. Often refused for the deposit, even if they carry a Visa or Mastercard logo.
- Cards with a low limit. If the hold doesn't go through, you can't take the car. Check the available limit, not the total limit, before you travel.
- New cards that haven't been used abroad. Some banks block the first foreign transaction. Tell your bank you are travelling, or make a small purchase at the airport first.
How long does the hold take to come off?
Once the car is checked back in, the rental company releases the hold – but the money only reappears when your bank processes it. Sixt, for example, says on its payment pages that a pre-authorisation can stay on the card for up to about 10 working days depending on the bank. In practice most travellers see it disappear within one to two weeks.
If it is still there after three weeks, contact the rental company with your contract number and ask for the release confirmation, then send that to your bank. Keep your signed return slip until the hold is gone – it is the simplest proof that the car came back in good condition.
Pay in baht, not in your home currency
When you pay the rental balance or any extras at the desk, the card terminal may offer to charge you in your home currency. This is called dynamic currency conversion, and the exchange rate is set by the terminal, not your bank – it is usually worse. Choose THB on the screen and let your own card handle the conversion. The same applies at petrol stations and hotels.
What can be taken from the deposit
- Damage up to the excess, if it wasn't on the damage sheet at pick-up
- Missing fuel plus a refuelling fee on full-to-full rentals
- Late-return charges – often a full extra day
- Traffic fines or toll charges that reach the company after you leave
- Cleaning fees for heavy sand, smoking or pet hair
- Lost keys, which are expensive on modern cars
The company should be able to show you what was deducted and why. Photos at pick-up and drop-off are your best protection – see our Rental car pick-up and return checklist for Phuket Airport.
A quick checklist before you fly
- Find the deposit amount and accepted cards in your offer's rental conditions.
- Pack a physical credit card in the main driver's name.
- Check the available limit covers the deposit plus your holiday spending.
- Tell your bank you are travelling to Thailand.
- Bring a second card in case the first is declined.
- Keep the return slip and your contract until the hold is released.
