Selling your Spanish property from the UK — the 3% retention explained.

When a non-resident sells Spanish property, the buyer is legally required to withhold 3% of the declared purchase price and pay it directly to the Spanish Tax Agency. It is not a fee, it is not a tax, and it is not negotiable. It is an advance payment against your capital gains tax liability — and if you file the right form within four months of completion, most UK sellers get most or all of it back. Miss the deadline and the money stays with the Tax Agency. This is the single most common mistake we see UK sellers make in Manilva, and it is entirely avoidable.

What is the 3% retention (Modelo 211)?

When you sell Spanish property as a non-resident, the person buying from you does not pay 100% of the sale price into your account. They pay 97% to you and 3% to the Spanish Tax Agency, using a form called Modelo 211. The buyer has 30 days from the completion date at the notary to make this payment. They then hand you a stamped copy of Modelo 211 as proof — that stamped copy is one of the most important documents in the entire sale, so keep it safe.

The legal basis is Article 25.2 of the Non-Resident Income Tax Law (Real Decreto Legislativo 5/2004). The Spanish Tax Agency publishes the official procedure in English on its Sede Electrónica. The purpose is straightforward: Spain wants a guaranteed way to collect capital gains tax from sellers who live abroad. By making the retention the buyer's legal obligation, and by making the property itself security for the debt if the buyer fails to pay, the system enforces itself.

Why the 3% is almost never the correct amount of tax

The 3% is a flat percentage of the sale price. The actual capital gains tax you owe is 19% of your real gain — the difference between what you sold for and what the property genuinely cost you, after adjustments. For most UK sellers, particularly those who bought during or after the 2008 crash, or who bought a fixer-upper and invested in it, the 3% is significantly more than the tax they actually owe. The refund process exists precisely because the retention is a crude instrument that overshoots in most cases.

A rough guide: on a €300,000 sale, the retention is €9,000. To owe exactly €9,000 in capital gains tax at 19%, your real taxable gain needs to be around €47,000. If your gain is less — or if you sold at a loss — you are entitled to a refund.

The 4-month deadline that catches everyone out

Here is where UK sellers lose money. To reclaim any of the 3%, you must file Modelo 210 with the Spanish Tax Agency within 4 months of the sale date. Miss that window and the right to reclaim is extinguished. The Tax Agency does not chase you, does not remind you, and does not accept late filings for this specific procedure. The money simply stays where it is.

Four months sounds generous, and it is — for anyone with the paperwork ready. Most UK sellers do not: they need to dig out the original 2005 escritura, the notary invoices, the transfer tax receipts, the contractor invoices for the roof they replaced in 2012, and the estate agent commission from the sale. Some of those documents are in Spain, some are in a UK loft, and some no longer exist. This is why the sale should be planned six months before the notary, not four months after.

How the timeline actually runs

A clean sale for a UK seller of a Manilva property runs through five milestones. The one in gold is the deadline that most UK sellers miss.

The four-month clock

From completion day to refund landing in your UK account.

1. Day 0

   Notary completion

   Buyer holds back 3%. You receive 97% of the sale price.

2. Days 1–30

   Buyer files Modelo 211

   The 3% is paid to the Tax Agency. You receive a stamped copy.

3. Days 30–60

   Plusvalía filed

   Manilva town hall assesses plusvalía municipal — a separate tax.

4. Days 60–120

   Modelo 210 filed

   Your lawyer files the return before the four-month deadline runs out.

   Deadline

5. Months 6–12

   Refund arrives

   The Tax Agency pays the refund straight into your UK bank account.

1. Day 0

   Notary completion

   Buyer holds back 3%. You receive 97% of the sale price.

2. Days 1–30

   Buyer files Modelo 211

   The 3% is paid to the Tax Agency. You receive a stamped copy.

3. Days 30–60

   Plusvalía filed

   Manilva town hall assesses plusvalía municipal — a separate tax.

4. Days 60–120

   Deadline

   Modelo 210 filed

   Your lawyer files the return before the four-month deadline runs out.

5. Months 6–12

   Refund arrives

   The Tax Agency pays the refund straight into your UK bank account.

What lowers your taxable gain (and increases your refund)

Your real capital gain is:

Sale price − Acquisition value − Selling costs = Taxable gain

The acquisition value is not just the price on your original escritura. It includes:

• The declared purchase price on the original escritura.
• The transfer tax (ITP) or VAT you paid at purchase.
• Notary and Land Registry fees at purchase.
• Legal fees at purchase, if invoiced with VAT.
• Documented improvements with proper Spanish VAT invoices. A new roof, an aluminium enclosure legalised at the town hall, a swimming pool. Not maintenance — repainting, appliance replacement and general upkeep do not count.

On the selling side you can deduct:

• Estate agent commission (usually 3-5% + VAT, a substantial deduction).
• Energy Performance Certificate cost.
• Plusvalía municipal paid to the town hall.
• Legal fees for the sale, if invoiced with Spanish VAT.

UK sellers routinely under-deduct because they never sent the invoices to their lawyer. If you have replaced the boiler, installed the pool heater, or done any legalised extension, dig out those invoices before the completion date. Without a valid Spanish invoice with VAT number, the improvement does not count.

Worked example — a Duquesa two-bedroom apartment

A UK couple bought a two-bedroom apartment near Puerto de la Duquesa in 2007 for €245,000, at the top of the market. They paid 7% transfer tax, 1.5% in notary and Land Registry, and €2,800 in legal fees. In 2014 they installed a new air-conditioning system, invoiced at €4,200 with VAT. They sell it in 2026 for €289,000. Estate agent commission is 4% plus 21% VAT.

Acquisition value:

• Purchase price: €245,000
• ITP 7%: €17,150
• Notary + Registry: €3,675
• Legal fees: €2,800
• Air conditioning: €4,200
• Total: €272,825

Selling costs:

• Agent commission: €289,000 × 4% × 1.21 = €13,988
• Energy certificate: €280
• Plusvalía municipal (illustrative Manilva): €1,900
• Legal fees: €1,800
• Total: €17,968

Taxable gain: €289,000 − €272,825 − €17,968 = −€1,793. In other words, a loss.

The 3% retention was €289,000 × 3% = €8,670. All of it is refundable. But only if Modelo 210 is filed within 4 months with every invoice referenced above properly documented. Without the air-conditioning invoice, the gain becomes positive and the seller loses roughly €800. Without the legal fee invoice from 2007, more again. This is why the paperwork matters.

Plusvalía municipal — the second tax that surprises sellers

Plusvalía is a separate municipal tax paid to the Manilva town hall, calculated on the theoretical increase in land value (not building value) during your ownership. It is legally the seller's obligation and is due within 30 days of the sale for people selling inter vivos. The buyer's lawyer will almost always deduct the estimated plusvalía from the sale price at completion and pay it directly to the town hall on your behalf, to avoid the buyer becoming secondarily liable.

Since the Constitutional Court judgment STC 182/2021 (BOE) and the subsequent Real Decreto-ley 26/2021 (BOE), sellers who can prove that no real gain in land value occurred are exempt. If you sold at a loss, or if the cadastral land value has not risen, you can apply for exemption or a refund. As with capital gains tax, the burden of proof is on you — the town hall does not volunteer the exemption.

Plusvalía is deductible from your taxable gain on Modelo 210, which softens the blow. But if you qualify for exemption at the town hall level, you should claim it — and then still deduct the (zero) amount correctly on Modelo 210.

Common mistakes we fix for UK sellers

• Waiting until after the sale to gather documents. The completion date starts a 4-month clock. Every week spent finding invoices is a week you cannot spend on the actual filing.
• Assuming the buyer's lawyer will handle Modelo 210. They will not. The buyer's lawyer handles Modelo 211, which pays the retention to the Tax Agency. Modelo 210, which reclaims it for you, is entirely your responsibility.
• Forgetting the plusvalía deduction. The plusvalía paid at completion is a legitimate deduction from your taxable gain. Sellers who file Modelo 210 without a lawyer routinely miss it.
• Losing the Modelo 211 copy. Without it, the Tax Agency has no easy way to link the retention to your Modelo 210 filing. Request a duplicate from the buyer's lawyer if lost, immediately.
• Not documenting improvements with proper invoices. A €12,000 pool installed cash-in-hand is worth zero in this calculation. A €12,000 pool with a Spanish contractor invoice and VAT number is worth €12,000 off your taxable gain.
• Missing the deadline because "the UK bank is slow". The Tax Agency accepts UK IBANs for refunds. There is no reason to delay filing waiting for a Spanish account.

Manilva-specific notes

• Plusvalía municipal in Manilva is filed at the Ayuntamiento in Villa Matilde. The buyer's lawyer usually pays it directly from the completion funds — verify the exact figure is on your completion statement.
• Land Registry inscriptions for Manilva properties are at Estepona nº 1 or nº 2. Your original purchase deed and the sale deed must match the registry that holds your title.
• For Duquesa apartments, the community fee certificate and the supra-community certificate are both required at completion. Neither affects the 3% retention directly, but both delay closing if missing — and delays into the following calendar year can complicate Modelo 210.
• Sales completing in October, November or December compress the 4-month deadline into a period that spans the Christmas holidays and the Tax Agency's slow February. Plan for this or the deadline will feel much tighter than it looks on paper.
• Rural properties in Manilva or Casares under AFO or fuera de ordenación status may have title issues that complicate the sale itself. That is a separate topic — a dedicated guide is in preparation.

What to do six months before your sale

1. Locate the original purchase escritura. If you cannot find it, request a duplicate (copia autorizada) from the notary who signed it.
2. Locate the notary and Land Registry invoices from the purchase. If lost, request duplicates.
3. Gather all improvement invoices. If any lack a valid Spanish VAT number, contact the contractor and ask them to reissue.
4. Check the cadastral value on your latest IBI receipt. This feeds into the plusvalía calculation.
5. Choose whether to sell direct or through an agent. Agent commission is deductible; a direct sale gives you a slightly higher net but takes longer.
6. Instruct a lawyer for the sale before you list. Their fee is deductible too, and having them involved from listing means the paperwork is being prepared in parallel with the sale itself.

Cited legislation & official sources

• Real Decreto Legislativo 5/2004 — Non-Resident Income Tax Law (BOE). Article 25.2 sets out the 3% withholding on property sales by non-residents.
• Spanish Tax Agency (AEAT) — Withholding by the purchaser of a property. Official English-language procedure for Modelo 211.
• Spanish Tax Agency (AEAT) — Non-Resident Income Tax (IRNR). Landing page for non-resident tax procedures including Modelo 210.
• Constitutional Court judgment STC 182/2021 (BOE). The ruling that reformed plusvalía municipal.
• Real Decreto-ley 26/2021 (BOE). Legislation implementing the plusvalía reform, including the "no gain, no tax" exemption.

Disclaimer. This guide is published by Duquesa Chambers for general information about Spanish tax and property law affecting UK sellers. It reflects the law and procedure in force at the date of last review shown at the top of this page. It is not a substitute for advice tailored to your individual sale, and should not be relied on as such. For personalised advice on your property in Manilva, La Duquesa, Sabinillas or Casares Costa, contact us and we will review your specific facts.