Raúl lets his apartment for 89 nights because he has been told that at 90 "you pay more". He turned down a week-long booking so as not to cross that figure. For tax purposes, that decision rests on a myth: there is no national 90-night threshold that suddenly turns an exempt rental into a taxable one, or income from real property into a business activity. The income is declared from the first stay, and each cost is linked to actual use.
There is no tax-free number of days
You can let a tourist home for one weekend or for two hundred days: the income has to be declared from the first one. National rules contain no allowance of 30, 60 or 90 days that keeps the rental outside IRPF (Spanish personal income tax for residents) or IRNR (the tax on the Spanish income of non-residents).
The day limits that appear in some tourism or planning rules regulate how the home may be used. They do not create a tax exemption. Confusing the two leads people to declare late income that the platform may already have reported to the tax authorities.
What changes when occupancy changes
| Period of the home | Usual treatment |
|---|---|
| Days let | Income and the costs linked to the rental for tax purposes are declared |
| Days available for own use | Imputed income from property may arise |
| Days of repairs that genuinely prevent use | They need proof; they do not automatically become days let |
The result does not depend only on the number of nights. It depends on the income earned, the deductible costs and how annual costs are spread between the different uses.
You can send the calendar, the limits in your licence and your costs through the holiday let form. The review separates the administrative limit from the tax calculation and avoids applying the same percentage to every cost.
An apportionment example
Imagine a home that is let for 120 days, available to the owner for 225 days and under works that make it unusable for 20 days. The total is 365, but it is not enough to divide every cost mechanically.
Costs directly tied to a booking, such as the platform commission or a departure clean invoiced for that stay, are linked to that income. Annual costs, such as the IBI (the municipal property tax), community fees or insurance, need a time-based criterion. Depreciation is calculated on the base that applies and for the period in which the property produces income, under the IRPF rules.
The 20 days of works require proof that the home could not be used. A planned renovation does not turn the period into letting, nor does it on its own guarantee that every cost can be deducted. You also have to separate a repair from an improvement, because they are treated differently for tax.
Step-by-step calculation
During the 120 days the home earns 18,000 €. The platform charges 2,700 € in commissions tied to those bookings. The IBI, community fees and insurance add up to 2,400 € a year.
- The 2,700 € of commissions are analysed as a direct cost of the bookings.
- To illustrate the time-based split, 2,400 × 120 / 365 = 789.04 € linked to the period let, without prejudice to the specific rules for each cost.
- The 225 days of availability are examined for imputed income.
- The 20 days of works need proof that the home was unavailable and of the type of works; they are not simply added to the 120 productive days.
The net income is not obtained by automatically subtracting 2,700 and 789.04 from 18,000. Depreciation, other costs, ownership and the applicable limits are still missing. The example shows why each figure follows a different criterion.
Nights, days and stays that cross a month
Platforms usually show nights, while some calendars speak of days occupied. Checking in on Friday and leaving on Sunday is two nights, but it touches three calendar dates. Keep a criterion that is consistent with the booking records, and avoid counting the departure day as both available and let without explaining the method.
When a stay starts on 29 December and ends on 3 January, separate the periods under the tax rule that applies. A transfer received in January does not necessarily make the whole transaction income of the new year. Keep the booking, the invoice, the dates of the stay and the payout statement.
More occupancy does not always mean a higher rate
In ordinary IRPF, the net rental income is added to your other income under the applicable rules. More days may increase income and the taxable base, but there is no tax jump for crossing a particular number of nights. The effect depends on your overall result and your other income.
| Change | Possible effect, with nothing automatic |
|---|---|
| From 89 to 96 nights | More income and a new time-based split |
| From one home to several | More organisation, which must be reviewed |
| Adding services during the stay | Possible change in VAT and classification |
| Hiring a full-time employee | Relevant for article 27.2 of the IRPF Law |
| Going over a local limit | A tourism or planning consequence, not a tax exemption |
For a non-resident, each period and type of income follows the IRNR rules. The rate and the possibility of deducting costs depend, among other things, on tax residence. For income accruing from 2026, rental income from property declared annually on Modelo 210, the non-resident return, is filed from 1 to 20 April of the following year when there is tax to pay.
When volume does make you review the model
Although there is no magic number, a larger operation can change the facts. Several homes, daily attention, staff, a reception or services during the stay can bring the operation closer to an organised activity. For IRPF, article 27.2 uses the requirement of one person employed on an employment contract and full time to classify letting as a business activity.
That test must not be confused with the Social Security analysis or with VAT. Whether you must register as self-employed and whether there are hotel-type services are studied separately.
A blocked calendar does not always mean own use
A date with no booking may reflect personal use, availability without demand, maintenance, an administrative ban or works that make the property uninhabitable. The platform only shows that it was not accepting bookings; it does not prove why.
If Raúl blocks August to live in the flat, those days are at his disposal. If he blocks it because a serious fault makes it impossible to occupy, he needs repair reports, invoices, photographs and dates. If the authorities suspend the letting but the home remains available to him, the tax consequence is not decided by the tourism ban alone.
Nor are the days between bookings treated as let just because the listing stays active. Offering the home on the market can help explain intention, but the treatment of empty periods requires the rules and case law in force to be applied to the facts of the year.
If a bylaw allows letting for a maximum number of days, exceeding that limit may have administrative consequences. Keeping within it does not remove the obligation to declare the income earned.
How to prepare a calendar you can defend
Record one single status for each day of the year: let, own use, available, blocked for repairs or given over to another use. Then keep:
- Booking extracts with check-in and check-out dates.
- Invoices from the platform, cleaning and repairs.
- Evidence of the periods in which works prevented use.
- Days on which the owner or relatives stayed.
- Switches between tourist letting and seasonal letting.
The calendar must match the income and the information the platforms send. The right question is not "how many days can I hide", but which part of the year produced income and which costs connect with it. For the criterion behind each cost, see the deductible expenses of a holiday let and the general explanation of tax on tourist rentals.
The review has to be done on the full year, not from an isolated number of nights. Keep an annual export before the platform deletes or changes its history.