What legal requirements apply to gifting property interests to children in Spain?

Gifting property interests to children in Spain involves specific legal requirements and tax implications that differ from direct purchase. The primary legal instrument is a public deed of gift (escritura de donación) executed before a Spanish Notary Public. This deed must clearly outline the transfer of ownership and the donor's intent to give without expectation of payment. For minors, the gift must generally be accepted by their legal representatives (parents or guardians), often requiring judicial authorization if the gift imposes significant burdens or conditions, although pure gifts are usually more straightforward. Tax-wise, the transaction is subject to Gift Tax (Impuesto sobre Sucesiones y Donaciones), which is regulated by autonomous communities, meaning the rates and allowances can vary significantly depending on where the property is located (e.g., Andalusia for Costa del Sol properties) and the degree of kinship. There may also be Capital Gains Tax for the donor if the property's value has increased since acquisition, and the local Plusvalía tax (Impuesto sobre el Incremento de Valor de los Terrenos de Naturaleza Urbana) payable to the municipal council based on the increase in urban land value. Proper legal advice is crucial to navigate these requirements, ensure the gift is legally valid, and optimize the tax burden for both the donor and the recipient, especially when planning for future succession.