SOBE Knowledge
What Is IBI? Spain’s Annual Property Tax
The municipal tax every owner pays every year — who owes it after a sale, how arrears follow the property, and where it lands in an honest yield calculation.
What IBI is
IBI — Impuesto sobre Bienes Inmuebles — is Spain’s annual municipal property tax. Every owner pays it, every year, for as long as they own.
It is the closest Spanish equivalent to council tax or property rates: charged by the town hall, calculated on the property’s valor catastral — the administrative cadastral value, which sits well below market — at a rate each municipality sets within the state band of roughly 0.4% to 1.1% for urban property.
On the Costa del Sol, a €500,000 apartment commonly carries an IBI in the high hundreds to low thousands of euros a year — meaningful in a net-yield calculation, and one of the running costs our calculators ask for explicitly. The rubbish tax (tasa de basura) is often billed alongside it.
Who owes it — the 1 January rule
Whoever owns the property on 1 January owes the whole year’s IBI.
Buy in March, and legally the seller owes that year’s bill; the near-universal practice — blessed by the Supreme Court — is to prorate it in the purchase contract, each side carrying its months. If the arras is silent, the default rule stands, so make it explicit.
The sharper edge for buyers: unpaid IBI follows the property. The town hall can collect current and recent arrears against the asset itself, regardless of who created the debt. The last paid receipt and a municipal no-debt certificate are therefore standard items in the due-diligence file — alongside the nota simple.
How and when it is paid
Once a year, in the collection window each municipality sets — typically late summer to autumn on this coast. Direct debit (domiciliación) is the practical answer for non-resident owners: no envelope to miss, and some town halls discount for it. Miss the voluntary period and surcharges attach automatically.
For landlords, IBI is a deductible expense against rental income for residents and EU/EEA non-residents — another reason the receipt belongs in the same folder as every other factura.
Where IBI lands in the numbers
SOBE Buy-to-Let Yield Calculator
IBI, community fees, insurance and management — entered line by line, so the net yield is real rather than optimistic.
Valor catastral is not valor de referencia
Two official values, two different jobs. The valor catastral is the older administrative value that IBI (and imputed non-resident income tax) is calculated on — usually far below market. The valor de referencia is the newer market-tracking figure that sets the minimum base for ITP and inheritance tax. Confusing them leads to budgeting errors in both directions.
Three ways IBI catches owners out
1. The silent arras. No proration clause means the 1 January owner carries the whole year. Put the split in writing.
2. Inherited arrears. The debt travels with the property. A no-debt certificate before completion costs nothing; discovering three years of arrears after it costs exactly three years of arrears.
3. The unwatched letterbox. Non-residents miss paper bills and collect surcharges. Domicile the payment the week you get the keys.
Frequently asked questions
How much is IBI on the Costa del Sol?
It depends on the valor catastral and the municipal rate - set within a state band of roughly 0.4% to 1.1% for urban property. A 500,000-euro apartment commonly carries an annual bill in the high hundreds to low thousands of euros; the last receipt tells you exactly.
Who pays IBI in the year of a sale?
Legally, whoever owns on 1 January owes the whole year. Standard practice, upheld by the Supreme Court, is to prorate it in the purchase contract - but only if the contract says so.
Can unpaid IBI from the previous owner affect me?
Yes - the debt follows the property, and the town hall can collect recent arrears against the asset. A municipal no-debt certificate before completion is standard due diligence.
Is IBI deductible against rental income?
Yes, for Spanish residents and EU/EEA non-resident landlords declaring net rental income. Keep the receipts with the rest of the property file.
How do non-resident owners usually pay it?
By direct debit from a Spanish account - it removes the risk of missing a paper bill and, in some municipalities, earns a small discount.