Is the rate really 19%, or 24% like some sites say?
19% — for all non-residents, EU and non-EU alike, on the sale of Spanish property. The 24% figure is the general IRNR rate for other Spanish-source income (such as rental income), not for capital gains on a property transfer. Many guide sites conflate the two.
What is the 3% withholding, and is it the same as the tax itself?
No — it's an advance payment. The buyer is legally required to withhold 3% of the agreed sale price and pay it directly to the Spanish Tax Agency (Modelo 211) at completion. Your actual tax bill is calculated separately on the net gain at 19%. If the withholding exceeds what you owe, you reclaim the difference; if it falls short, you pay the balance.
How is the taxable gain calculated?
Sale price minus acquisition price, minus allowable acquisition and disposal costs (notary, registry, agency fees, ITP/AJD or VAT originally paid, proven improvement works). The 19% applies to that net figure, not to the sale price.
What is the deadline for filing?
Modelo 210 must be filed within four months of the date of the notarial deed (escritura). If the deed was signed on 15 March, the filing deadline is 15 July.
Is this the same as the Plusvalía Municipal?
No — a separate, additional tax. The Plusvalía Municipal is a local tax on the increase in the official land value since the last transfer, charged by the town hall regardless of whether you made a profit on paper. Capital gains tax under IRNR is a national tax on your actual financial gain. Both can be due on the same sale.
Can I avoid the tax by reinvesting in another property?
Not as a non-resident. The reinvestment exemption for a principal residence requires the replacement property to also be your Spanish tax-resident main home — which by definition contradicts non-resident status. This route is only open to Spanish tax residents.