You land in Malaga with a two-year-old and the first question is: where does the car seat come from? Spanish law leaves you no choice. A child up to 135 cm tall travels in an approved child car seat. Without one, the police write out a €200 fine and take 4 points. For each child separately.
Booking a rental car with a child car seat in Malaga comes down to three options. Hire a seat with the car, bring your own on the plane or buy one locally. Each makes sense in a different situation, and over a week's holiday the price gap can reach a hundred euros. Below you will find the rules for 2026 and prices from the Car4Rent booking panel, the big airport brands and Carrefour. Plus what to check at pick-up before you strap your child in.
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The legal basis is Article 117 of the “Reglamento General de Circulación” (Spain's general traffic regulations, RGC). There is one rule. A child up to and including 135 cm travels in an approved child seat, chosen for their height and weight. In Spanish it is an SRI, “sistema de retención infantil” (child restraint system). Age does not matter. Centimetres do.
The child seat goes on the back seat. The front is allowed in three situations only. The car has no rear seats, all rear seats are taken by other children in child seats, or not every seat fits in the back. A rear-facing seat in the front? Only with the passenger airbag switched off. No exceptions.
A separate rule covers taxis in urban traffic: a child may travel without a child seat, but only in the back. That does not apply to rental cars.
The fine is €200, or €100 if you pay within 20 days, plus 4 licence points. It has been 4 points since March 2022. Before that it was 3, which is why older guides disagree. The penalty is counted for each child separately. Police have the right to immobilise the car until you sort out a seat. On the MA-20 ring road on a Saturday evening? Not the scenario you want.
The DGT (Dirección General de Tráfico, Spain's traffic authority) does not let this one slide. In its March 2026 campaign officers checked 443,758 cars and found 458 children with no seat or badly strapped in. According to the DGT, a child seat prevents 9 out of 10 serious injuries to children. For what other offences cost, see our guide to traffic rules in Spain 2026.
The rules you know from home are close to the Spanish ones, but not identical. The difference is in the detail.
| UK | Ireland | Spain | |
|---|---|---|---|
| Child seat compulsory | until 135 cm or age 12, whichever comes first | under 150 cm or 36 kg | up to and including 135 cm, at any age |
| Recommendation | none separate | none separate | up to 150 cm (DGT) |
| Exceptions | taxis; from age 3, short unexpected trips or no room for a third seat in the back | taxis | taxis in urban traffic |
| Fine for no seat | up to £500 | €120 and 3 penalty points | €200 + 4 points, for each child |
What that means in practice: Spain has no age cut-off. A 12-year-old under 135 cm can ride without a booster in the UK, but in Spain they still need one. Coming from Ireland, it works the other way round. A child who is 140 cm tall still needs a booster at home and legally does not in Spain.
The DGT recommends a booster up to 150 cm anyway. A belt across the stomach and neck, instead of the hips and collarbone, does more harm than good in a crash. For €10 there is not much to think about.
The label on a child seat shows one of two approvals.
ECE R44/04 is the older standard. You choose the seat by the child's weight, in groups. The baby groups are 0 (0 to 10 kg) and 0+ (0 to 13 kg). Then come I (9 to 18 kg), II (15 to 25 kg) and III (22 to 36 kg).
R129, known as i-Size, is the newer one. You choose by height, a side-impact test is compulsory and the child rides rear-facing until at least 15 months. i-Size seats usually fit on ISOFIX anchor points, which have been compulsory in new cars in the EU since the end of 2014.
Since 1 September 2024 new R44 seats cannot be sold in the EU. You can still use one, with no end date. An R44/04 seat you bought a few years ago at home is just as legal in Spain as a new i-Size. Police check the approval label and the fit to the child, not the year of the standard.
The simplest route. At Car4Rent Malaga you add child seats in the “Extras and accessories” step of the online booking. The fee is one-off, however many days you rent:
| Type | Who it is for | Price for the whole rental |
|---|---|---|
| Child seat 0 to 18 kg | babies and toddlers | €15 |
| Child seat 15 to 36 kg | pre-school and early primary school children | €15 |
| Booster (no ISOFIX, held by the seat belt) | older children, up to 150 cm | €10 |
Two children? Set the quantity to two and take two seats. Give us your child's weight and height when you book and we will pick the right model. The seat will be waiting in the car at pick-up, outside the airport terminal or at your hotel (hotel delivery is a paid extra).
Does the 0 to 18 kg or 15 to 36 kg seat have ISOFIX? Ask when you book, because it depends on the model available for your dates. The booster is held by the car's seat belt, without ISOFIX.
For comparison, the big brands at Malaga airport charge per day. Hertz asks €19.06 a day for an infant seat, capped at €114.34 per rental, and wants the seat booked 24 hours ahead. Europcar charges around €13 a day, up to about €90 per rental. Sixt, Avis and Goldcar work in a similar way, usually €60 to €115 for a week.
Airlines carry a child seat free of charge, though each has its own rules. Three you are likely to fly with from the UK or Ireland:
The upside: you know this seat, and so does your child. The downside: the hold. The seat travels unprotected and can come back with a cracked shell, and a damaged seat should not be used again. Then there is the weight. An i-Size seat for 40 to 150 cm weighs 10 to 15 kg. You lug it through the airport along with the suitcases and a child. A backless booster is a different league. It fits in your hand luggage.
Going for this option? Pack the seat in a cover or plastic wrap and look it over carefully as soon as you land.
Carrefour, Decathlon and El Corte Inglés stock child seats all year round. Prices from Carrefour.es, correct as of September 2026:
It makes sense if you are staying for longer, come back to the Costa del Sol every year or need a new seat anyway. For a week's holiday it is overkill. You pay several times more than the rental fee and then carry your purchase home.
| Option | Cost for a week (1 child) | Notes |
|---|---|---|
| Car4Rent Malaga | €10 to €15 | one-off fee, the seat is waiting in the car at pick-up |
| Hertz | up to €114.34 | €19.06 a day, book 24 h ahead |
| Europcar | about €90 | about €13 a day, booster about €9 a day |
| Your own seat from home | €0 | risk of damage in the hold, 10 to 15 kg to carry |
| Buying locally | €27 to €130 | yours to keep for future trips |
The car itself is a separate cost. Daily rates and seasons are broken down in our article on how much it costs to rent a car in Malaga.
Age gives you a hint. Weight and height decide. Three rules:
Is your child on the border between two groups (17 kg, for example)? Put it in the booking notes and you will save yourself a discussion at pick-up.
Five minutes at pick-up, so it is not fifty on the hard shoulder.
How damage to a rental car is settled is explained in our guide to rental car insurance in Spain. No insurance package covers the child seat.
Yes, for every child up to and including 135 cm, in your own car or a rental car alike. The DGT recommends a seat up to 150 cm.
At Car4Rent Malaga it is €10 for a booster and €15 for a 0 to 18 kg or 15 to 36 kg seat. That is a one-off fee for the whole rental. The big brands charge per day. Hertz asks €19.06 a day, up to €114.34 per rental.
€200 (€100 if paid within 20 days) and 4 points, for each child separately. Police can also immobilise the car until a seat is provided.
Yes. Ryanair carries 2 items of baby equipment per child free of charge, car seat and booster included. You tag them at the check-in desk or at the gate. easyJet and Jet2 also take a car seat at no extra cost.
Yes, as long as it has an ECE R44/04 or R129 approval label. The ban from September 2024 covers the sale of new R44 seats in the EU, not their use.
No, with three exceptions. The car has no rear seats, other children in child seats take all the rear seats, or not every seat fits in the back. A rear-facing seat in the front needs the passenger airbag switched off.
Not in urban traffic. A child may ride in a taxi without a child seat, but only in the back. The exception does not cover rental cars.
Add a seat to your booking, enter your child's height and weight, and we take care of the rest. We bring the car, seat included, to the terminal at Malaga airport or to your hotel (a paid extra). No deposit and no credit card. The paperwork takes 15 to 20 minutes, in English or Polish, and our phone line +34 695 715 325 is open around the clock.
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