Selling Luxury Property in Costa Blanca: Taxes and Retentions Explained

The timing is supportive. Alicante province prices rose strongly into 2026, while premium northern Costa Blanca micro-markets remained materially higher. Moraira, Javea, and parts of Altea continue to sit well above the provincial average in prime villa and sea-view locations.

That matters because luxury sellers often hold significant nominal gains after seven to twelve years of ownership. Tax planning is not administrative detail at this level. Weak preparation can cost tens of thousands of euros in excess withholding exposure, overstated plusvalia, or non-deducted capital improvements.

The first figure every non-resident seller must understand is the 3% retention, orretencion del 3%. If the seller is non-resident for Spanish tax purposes, the buyer must withhold 3% of the gross sale price and pay it to the Spanish Tax Agency using Modelo 211 within one month of completion.

This is not an extra tax layered on top of the sale. It is an advance payment against the seller's eventual non-resident capital gains tax bill. The seller receives 97% of the agreed price at completion before other deductions, then offsets the retained amount through Modelo 210.

Non-resident sellers pay capital gains tax on the profit made on the sale. The attached source sets out a standard 19% rate for EU and EEA residents and 24% for non-EU residents, including many British and American owners.

The taxable gain is not simply sale price minus original purchase price. Eligible acquisition costs can reduce the gain, including notary fees, Land Registry fees, transfer tax paid on purchase, and properly invoiced legal costs. Qualifying structural improvements may also be deductible when supported by valid invoices and VAT receipts.

Luxury property on the Costa Blanca tends to be owned by non-residents, often through international tax residencies and often with larger-than- average historic gains. That creates a different risk profile from a standard resale apartment in a domestic market.

In Altea Hills, Moraira, Javea, or prime coastal enclaves in Alicante province, a seller may be dealing with a seven-figure price, foreign- currency repatriation, legacy renovation costs, and buyer due diligence led by experienced lawyers. Documentation failures can cost not just time, but negotiating leverage.

A tax-efficient sale depends on documentation, not assumptions. Sellers should prepare the compliance file before going live so the sale can move cleanly once a buyer is found.

The correct way to think about a Costa Blanca luxury sale is not headline price, but net proceeds after retentions, taxes, compliance costs, and commission. A seller accepting EUR1.8 million should not mentally book EUR1.8 million.

Costa Blanca remains a compelling place to sell premium real estate in 2026 because pricing is strong and international demand remains deep. But the luxury seller who exits well is usually the one who prepares like a tax case before marketing begins.

Full invoices, a clean compliance file, a realistic plusvalia calculation, and a plan for recovering any excess from the 3% retention through Modelo 210 can make the difference between a good headline price and a strong final result.