How IBI (Property Tax) Eats Into Your Rental Profitability
IBI (Impuesto sobre Bienes Inmuebles) is one of the most predictable annual costs of owning Spanish property — and one of the most misunderstood, particularly around who's actually on the hook for it and whether it can be shifted to a tenant.
How it's calculated
IBI is a municipal tax, governed by national law (Real Decreto Legislativo
2/2004) but set locally: the formula is valor catastral × tipo de gravamen (cadastral value × the municipal rate). Crucially, this is based
on cadastral value, not market price — the two can diverge
significantly, especially in areas where market prices have risen faster
than official valuations have been updated.
The rate range
For urban property, the statutory rate generally runs 0.4% to 1.1% of cadastral value, with each municipality setting its own rate within that band. Some municipalities (provincial/regional capitals, those running public transport, or providing extra services) can apply a modest surcharge on top, so the effective ceiling in some capital cities can run slightly above 1.1%. Your specific rate depends entirely on your municipality — check your local council's published rate rather than assuming the general range applies exactly to you.
Who legally owes it
The taxpayer of record is whoever owns the property on January 1st of that tax year — this is fixed by tax law and doesn't shift based on what a rental contract says. If you sell mid-year, you (as the January 1st owner) are still the one the town hall pursues for that year's IBI, regardless of private arrangements with a buyer or tenant.
Can it be passed to the tenant?
Yes, but only through a specific written mechanism: under Article 20 of the LAU, landlord and tenant can agree that the tenant reimburses the IBI, but this pact must be in writing and must state the annual amount at the time the contract is signed. An important nuance: this is a private contractual arrangement between landlord and tenant only — the town hall will always pursue the registered owner for collection, regardless of what the lease says. If a tenant doesn't reimburse as agreed, that's a contract dispute between landlord and tenant, not something that changes who the town hall bills.
Quick answers
Does IBI change if the property sits vacant? No — IBI is owed regardless of whether the property is occupied or generating rental income. It's a fixed annual cost independent of your rental activity.
Can I dispute my property's cadastral value if it seems too high? There are formal mechanisms to challenge a cadastral valuation, though this is a specific administrative process worth pursuing with professional guidance if you have a genuine case, not something to attempt casually.
Should IBI be included in my yield calculation? Yes — it's a real annual cash cost and belongs in your operating expenses when calculating true profitability. See our rental expenses guide for how it fits alongside community fees, insurance, and maintenance.
See IBI's impact on your numbers
Include your actual IBI figure in our rental yield calculator as part of your annual expenses to see its real effect on your return.
This article offers general, educational information and does not constitute tax or legal advice. IBI rates are set locally and change — confirm the current rate with your municipality before relying on a specific figure.