Bought a home on the Costa del Sol? How to put the electricity in your name (and when you need a boletín)

You have just signed the deeds and it is time to put the utilities in your name. With electricity, the formality is the cambio de titular — a change of account holder — and the question is almost always the same: will they ask me for a new boletín? The short answer is no, unless you want to change more than the name. Here is what the current rules say — Spain’s electricity supply regulation, Royal Decree 88/2026 (in Spanish) — and when it is worth calling an electrician.

A change of account holder is not a disconnection and a new connection

Once you are the user of the property with a legitimate title — for example, your purchase deeds or a rental contract — and provided you are up to date with payments, you are entitled to have the contract changed into your name «without further formalities». The regulation also makes clear that it must never be treated as a termination followed by a new connection (art. 39.3). It is the same supply point, with a new holder.

Two details worth knowing:

• The distributor does not charge you for the new contract. It may not receive «any amount» for issuing the contract that results from a change of holder (art. 39.5).
• You do not inherit the contract’s debt. Taking over the contract does not make you liable for what the previous holder owed on it (art. 39.2).

You arrange it through an electricity supplier, which passes it on to the distributor. Have your ID, the document showing you are the new user and the supply point’s CUPS code to hand — it appears on the bills.

Do you need a new boletín? Not if only the holder changes

It is the most widespread myth, repeated on many websites: that the boletín «expires» after 20 years and that a change of account holder requires a new one. The regulation says the opposite: on a low-voltage contract — the kind a home has — that is more than 20 years old, if neither the technical conditions nor the access tariff type change, the distributor cannot ask you for a new certificate or inspect the installation (art. 39.6).

In other words: if only the name on the contract changes, there is no boletín. It comes back into play when something more changes: if you ask for more power than your installation allows, if you extend or alter the installation, or if the supply contract had been terminated (dada de baja) and has to be set up again. We cover each below.

What the boletín actually is, and what it is for, is explained in our guide to Spain’s electrical certificate (CIE) vs the EPC.

When you will need an electrician

1. If you want more power. The boletín states the maximum power your installation allows; if the new figure exceeds it, the installation is upgraded and certified first (e-distribución, in Spanish). On top of that, on a low-voltage contract over 20 years old, the distributor inspects the installation before raising the power — and may charge for that inspection — and if it does not comply, requires it to be upgraded and a new boletín issued (art. 38.7). We explain it in how much power to contract, and how to increase it.
2. If you extend or alter the installation — consumer unit, circuits, wiring — which is common when buying an older home: once the work is done, the installation company issues a new installation certificate (REBT, ITC-BT-04, in Spanish). See when to rewire an older Spanish villa.
3. If the supply contract had been terminated. Then it is no longer a change of holder but a new connection, with its own requirements: ask the distributor which documents it needs.

One tip before you sign

Ask the seller for a recent electricity bill: it shows the CUPS, the contracted power and whether the contract was active at that time. If the house has been closed for a while, or that power is too low for how you will use it — pool, air-con, electric car — better to know before you move in than on day one with the consumer unit tripping.

If you are unsure about your case, tell us and we will help you work out whether a change of holder is enough or whether the installation should be checked. We work from Málaga to Estepona.