Can I rent out a room in my home?
Yes, if you're the owner or have permission. You can rent out a room in your home. Unlike renting a whole home, renting a room is not governed by the Urban Tenancy Act as a housing lease, but by what you agree in the contract and, supplementarily, by the Civil Code. It's wise to sign a clear contract (rent, deposit, use of common areas, duration, house rules). You must declare the income in your income tax as real-estate income (with possible reductions depending on the case). If you are a tenant and want to re-rent a room (sublet), you need the owner's written permission. And if the home is in a community, respect its rules.
📋 The rules
- You can rent out a room in your home
- Governed by the contract and the Civil Code (not the housing Tenancy Act)
- Sign a clear contract (rent, deposit, rules, duration)
- Declare the income in your income tax
- Tenant subletting: needs the owner's permission
🔓 Exceptions
- Subletting without the owner's permission: grounds to terminate the contract
- Tourist room rental: specific rules and licences
- Subsidised housing: limits on renting out rooms
⚠️ Penalties & fines
Not declaring the rental income in your income tax can lead to sanctions from the tax office, with surcharges and interest. If you're a tenant and sublet a room without the owner's permission, they can terminate your contract. Although room rental gives more freedom to agree terms than housing rental, an unclear contract creates conflicts (over the deposit, costs or notice), so set out the conditions well in writing. If the activity were tourist (rooms by the day to tourists), you'd need to meet the rules and, where applicable, get a licence.
📎 Official sources
- Tax Agency · Real-estate income (rental) →
- BOE · Civil Code (leases) →
- Administración · Housing rental →
❓ Frequently asked
Can I rent out a room in my flat?
Yes, if you're the owner or have permission to do so. Renting a room isn't governed by the Urban Tenancy Act like renting a whole home, but by what you agree in the contract and, supplementarily, by the Civil Code.
Do I have to declare what I earn from the room?
Yes. Income from renting a room is taxed in your income tax as real-estate income. You must declare it, though you can deduct certain costs and, depending on the case, apply reductions. Not declaring it can lead to tax sanctions.
Do I need a contract to rent out a room?
It's not legally mandatory, but strongly recommended. A written contract detailing the rent, deposit, use of common areas, duration and house rules avoids conflicts and gives both parties security.
I'm a tenant, can I re-rent a room?
Only with the owner's written permission. Subletting without authorisation is grounds to terminate your tenancy. With that permission, you can sublet a room on the agreed conditions.
Do the same rules as housing rental apply?
Not entirely. Room rental gives more freedom to agree terms (duration, deposit, notice) because many of the Tenancy Act's protections for a main home don't apply. That's why a clear, detailed contract is key.
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