Modelo 720 for British Expats: What UK Pensioners Must Declare to the Spanish Tax Agency

🔢 Step 1 — The NIE: Your Non-Negotiable Starting Point

The Número de Identidad de Extranjero (NIE) is a tax identification number that every non-EU citizen needs before they can sign a public deed (escritura) in Spain. Without it, the Notary will not proceed. There is no workaround.

UK applicants now apply through the Spanish consulate covering their UK region — London, Manchester, or Edinburgh. The application requires: a completed EX-15 form, your original passport, a copy of the passport photo page, proof of why you need the NIE (a private contract or pre-reservation agreement for the property is sufficient), and the €10.61 fee. Processing time is four to six weeks; some consulates are running eight.

If you are buying in Andalusia specifically — Málaga, Marbella, Estepona — you can also apply for the NIE at the Oficina de Extranjería in Málaga city once you are in Spain, using a tourist entry stamp as proof of presence. This route saves the UK consulate wait but requires you to be on the ground.

🏦 Step 2 — Opening a Spanish Bank Account

A Spanish bank account is required to receive and send the purchase funds. Spanish banks will not accept wire transfers from a UK account as the sole source for a property purchase above €100,000 — they want to see the money already sitting in Spain or held in an escrow account they recognise.

The main high-street banks in Marbella and Málaga — Santander, CaixaBank, Sabadell — all have expat-facing teams. You will need: your NIE (or the receipt from your NIE application), your passport, proof of address (a recent utility bill in your UK name), and a copy of the property reservation contract. Account opening takes one to two weeks for UK applicants; some banks will insist on an in-person appointment.

For non-residents buying without a mortgage, some Spanish banks offer a non-resident account (cuenta no residente) with no minimum balance. For buyers using a Spanish mortgage, the lending bank typically requires the account to be opened with them — so your mortgage broker and your bank selection need to be coordinated from the start.

📝 Step 3 — The Private Contract (Contrato Privado)

Once you have found a property and agreed on price, the buying process begins with a private contract (contrato privado de compraventa), commonly called the "arras" contract in Andalusia. At this point you pay a deposit — typically 10% of the purchase price — to take the property off the market.

This contract is legally binding. If you withdraw after signing, you lose the deposit. If the seller withdraws, they owe you double the deposit. Get a Spanish property lawyer (abogado) to review the contract before you sign — standard clauses include fixtures and fittings schedules, outstanding community fees, and any planning violations the seller is aware of.

The private contract typically includes a completion period of 30 to 60 days. During this period your lawyer conducts due diligence: title search at the Land Registry (Registro de la Propiedad), outstanding debt check against the property (IBI, community fees, utility bills), and confirmation that the property has no illegal works (obra ilegal) that could become your liability after purchase.

📋 Step 4 — The Escritura: Signing Before the Notary

The public deed of sale (escritura pública de compraventa) is signed before a Spanish Notary (Notario) and is the moment legal ownership transfers. This is the only step that requires your physical presence in Spain — you cannot delegate or use power of attorney from the UK for this act.

Your lawyer books the Notary appointment and coordinates with the seller, the seller's bank (if there is a mortgage on the property being repaid at completion), and your own bank (if you are using a Spanish mortgage). The Notary reviews the deed on the day and witnesses all parties signing. You pay the remaining 90% of the purchase price — minus the deposit already paid — at this point, typically by bank transfer from your Spanish account.

💰 Step 5 — The Real Costs Nobody Quotes

The purchase price is only the beginning. For a resale property in Marbella bought by a non-EU buyer, expect to pay between 10% and 13% on top of the agreed price in taxes and fees. Here is the Andalusia-specific breakdown for 2026:

For a €500,000 resale property in Marbella, that adds roughly €47,000 to €57,000 in addition to the purchase price. For new-build off-plan properties, the AJD stamp duty of 1.5% replaces the ITP — sometimes making the total cost marginally lower, sometimes higher, depending on developer pricing.

🏦 Step 6 — Getting a Mortgage as a UK Buyer

Spanish mortgages for non-EU buyers are available from most Spanish banks and from international lenders with Spanish operations. Loan-to-value ratios for non-residents cap at 60–70% of the property's assessed value — lower than the 80–90% available to Spanish residents. Interest rates in 2026 run at approximately 3.2–4.5% for a 20-year fixed or variable product in euros.

The Spanish mortgage process takes six to ten weeks from formal offer to Notary signing. The bank appoints an independent appraiser (tasador) to value the property — you pay for this, typically €300–€500. The appraisal must confirm the property is worth what you have agreed to pay.

UK-source income is accepted by most Spanish banks for mortgage affordability assessment, but you will need three months of UK bank statements, your last two P60s or SA302 tax summaries, and a letter from your employer (or accountant if self-employed) confirming employment status. Some banks will accept rental income from UK properties; others will not.

⚠️ The Illegal Works Problem (Obra Ilegal)

This catches more UK buyers than almost anything else in the Costa del Sol market. Many villas and apartments in Marbella and surrounding towns were extended or modified without the correct town planning licences (licencia de obra) in the 1990s and 2000s. These are called "obra ilegal" — illegal works.

If you buy a property with unlicenced extensions and the local council (ayuntamiento) discovers them after you own the property, you become liable for the regularisation process — which can include demolition orders at your cost. A thorough planning check (certificado de compatibilidad urbanística) from the Marbella or Estepona town hall is essential before any private contract is signed.

This is not a reason to avoid Costa del Sol property — it is a reason to have a lawyer. The issue is entirely manageable with proper due diligence, and most properties with minor historical irregularities can be regularised for a few thousand euros if the current owner has not already done so.

📅 Full Timeline for a UK Buyer in 2026

Weeks 1–2: NIE application submitted to Spanish consulate; begin Spanish bank account inquiry. Weeks 3–6: NIE approved; bank account opened; property viewings and legal due diligence. Weeks 7–8: private contract signed; 10% deposit paid; full due diligence completed. Weeks 9–16: mortgage application submitted, property appraised, formal mortgage offer issued. Weeks 17–18: Notary appointment confirmed; balance of funds transferred to Spanish account. Week 18+: completion at Notary; Land Registry registration submitted by lawyer.

Four to five months from NIE application to keys in hand is a realistic timeline for a cash buyer. Six to seven months is standard for a financed purchase. Build in three to four extra weeks if the seller is a non-resident and their bank requires a separate cancellation certificate for an existing mortgage on the property.

Expatly360 coordinates NIE applications, Spanish bank accounts, lawyer due diligence, and full notary representation for UK buyers purchasing property in Spain. First consultation is free.