Removing a Co-Owner From a Spanish Property Title

When a co-purchase, an inheritance, or a relationship ends, one owner buying out the other is common in Spain — and the tax treatment of doing it correctly is very different from an ordinary sale.

The mechanism: extinción de condominio

Extinción de condominio is the legal procedure used to end shared ownership of a Spanish property. One co-owner ends up with full ownership, and compensates the other for their share — most commonly used after a divorce, an inheritance shared between siblings, or a co-purchase that no longer works for both parties.

Why the tax treatment is so different from a sale

A standard property transfer in Spain is taxed at 6 to 10 per cent, depending on the region. An extinción de condominio, by contrast, is taxed at only 0.5 to 1.5 per cent, because Spanish law does not treat it as a sale — it is simply the formal end of a shared ownership arrangement, which is precisely why doing it through the correct legal mechanism matters.

What if the other owner will not agree?

If the co-owners cannot reach an amicable agreement, the process can still proceed through a legal procedure that results in a forced sale of the property, with the proceeds then divided between the co-owners according to their respective shares.

Do not forget the mortgage

If there is an outstanding mortgage, the co-owner leaving the title needs to be formally released from liability on the loan — typically through the remaining owner refinancing or being substituted as the sole borrower. Without this step, the departing co-owner can remain legally responsible for a debt on a property they no longer have any stake in.

Call us today on +34 919 499 342 or email marialuisa@costaluzlawyers.es to handle a co-ownership buyout the correct, tax-efficient way.

Frequently Asked Questions

What is the legal process for one co-owner buying out the other?

The standard mechanism is extinción de condominio — a notarial procedure that ends the shared ownership, with one party keeping full ownership of the property and compensating the other for their share.

Is this the same as a normal sale between the co-owners?

No, and that distinction matters for tax. A standard property transfer in Spain is taxed at 6 to 10 per cent depending on the region, while an extinción de condominio is taxed at only 0.5 to 1.5 per cent, because it is not legally treated as a sale.

What if the other co-owner will not agree to sell their share?

If an amicable agreement cannot be reached, extinción de condominio can be pursued through a legal procedure that leads to a forced sale of the property, with the proceeds split between the co-owners.

Does this work if there is still a mortgage on the property?

It can, but the outgoing co-owner needs to be released from the mortgage liability as part of the process — usually by the remaining owner refinancing or being formally substituted on the loan — or they remain legally liable for a debt on a property they no longer own.

Do both parties need to attend the notary together?

Yes — both co-owners (or their authorised representatives) need to be part of the notarial deed that formally ends the co-ownership and transfers full title.

Changing who is on a title is not limited to co-owner disputes — see our guide to adding a spouse to a property title after marriage.

Ending a shared ownership and gifting a share to family are two different routes to the same goal — see our guide to gifting a Spanish property to your children.