What Counts as a Rental Expense in Spain?

The gap between "rent minus mortgage" math and a real profitability calculation is almost always the expenses landlords forget to count — not because they're hidden, but because they're small and recurring enough to fade into the background until you add them up for a full year.

The core operating expenses

For an honest picture of what a rental actually costs to run, count everything that's a real, recurring cash cost — regardless of whether it happens to be tax-deductible (more on that distinction below):

• Comunidad (community fees) — building maintenance, common areas, sometimes a concierge or lift maintenance contract.
• IBI (Impuesto sobre Bienes Inmuebles) — the annual municipal property tax, owed by whoever owns the property on January 1st of that year.
• Home insurance (seguro de hogar) — covers the structure and often landlord liability; frequently required by the mortgage lender if there is one.
• Maintenance and repairs — appliance repairs, painting between tenants, plumbing, anything that isn't a one-off renovation.
• Property management, if you use an agency to handle the day-to-day — typically a percentage of monthly rent.
• Vacancy loss — not an "expense" in the accounting sense, but it belongs in the same real-cost bucket: months with no rent coming in are a cost of doing business, not a rounding error.

A worked breakdown

Take the €1,400/year "annual expenses" figure used as the default example in our rental yield calculator — here's a plausible way that number breaks down for an average flat:

The exact split varies enormously by property and city — a flat with a lift and concierge has a much higher comunidad bill than one without; IBI depends on the property's valor catastral and the municipal rate. Treat this table as a template to fill in with your own numbers, not a benchmark.

Operating expense vs. tax-deductible expense — not the same list

This trips people up: the expenses you should count for real profitability and the expenses that are deductible on your IRPF return overlap heavily but aren't identical. A cost can be a genuine cash expense that reduces what you actually pocket, while following different (sometimes stricter) rules for what AEAT lets you subtract from taxable rental income. We're building a dedicated IRPF guide and calculator to cover the tax side properly — for now, when using the yield calculator, use the full real-cost list above, not just the tax-deductible subset.

Quick answers

Should I include a mortgage payment as an expense? Not in a yield-on-investment calculation like this one — that calculation treats the property as if bought outright, so mortgage interest and principal are a separate cash-flow layer on top of the result, not part of the operating expenses.

What if I don't know my actual comunidad/IBI numbers yet? Ask the seller or the current agency for the last year's figures before buying — these are standard disclosures in a Spanish property sale, and guessing low is the single easiest way to overestimate your real return.

Does a one-off renovation count as an annual expense? No — initial renovation or furnishing is a one-time cost added to your total investment (alongside the purchase price and buying costs), not an annual operating expense. Our calculator has a separate field for it.

See the full breakdown for your property

Run your own numbers through the rental yield calculator — it shows exactly how expenses, vacancy, and buying costs each affect your result.

This article offers general, educational information and does not constitute tax, legal, or financial advice. Figures depend on the inputs used and general assumptions; consult a professional before making investment decisions.