If you’re a foreign investor earning interest in Spain, one question could decide whether the Spanish tax authorities apply withholding tax or not: are you truly the one “receiving” that interest, or merely the channel it passes through? Spain’s Supreme Court has admitted an appeal that will force it to set a clear criterion on whether the tax authorities can deny the Non-Resident Income Tax (IRNR) exemption on interest when the recipient cannot prove it is the “beneficial owner” of that income. The case, has direct implications for how international investment structures and intra-group financing are taxed in Spain.
What’s at Stake: The IRNR Interest Exemption
Spanish non-resident tax rules provide, for certain non-residents, an exemption on interest earned in Spain. It exists precisely to avoid penalising foreign investment and cross-border financing — without it, every interest payment to a non-resident lender would face withholding at source, making the transaction more expensive. The issue arises when the tax authorities consider that the party collecting the interest is not the true economic owner of the underlying credit right, but rather an intermediary or interposed company set up specifically to access the exemption.
The “Beneficial Owner” Test: The Key Piece
This is where the concept of “beneficial owner” comes in — a notion that has steadily gained weight in international tax law, particularly under double tax treaties and EU anti-abuse rules. Being the legal or contractual holder of the payment is not enough: the authorities want to identify who actually controls those funds and decides what happens to them, without being contractually or factually obliged to pass them on to someone else. If the company receiving the interest acts as a mere conduit — receiving the money and almost automatically forwarding it to a final recipient — the tax authorities may conclude there is no beneficial owner and deny the exemption.
The appeal now before the Supreme Court will clarify the limits of that power: how far the authorities can go in “looking through” an investment structure to deny a tax benefit, and what evidence they must provide to do so.
What This Means for You or Your Business
If your company receives financing from foreign parent companies or vehicles, or if you invest in Spain through a holding company in another jurisdiction, this ruling — once issued — could prove decisive. In the meantime, it’s worth reviewing the economic substance of your intra-group financing structures: who really decides what happens to the funds, whether there are contractual obligations to pass them on automatically, and whether the available documentation would let you demonstrate beneficial ownership if challenged. Getting ahead of this debate — by properly documenting the substance of each structure — is far cheaper than defending it after the fact during a tax audit.
At EBF Consulting, we’ve spent years advising international investors and groups on planning and reviewing their cross-border financing structures. If you have questions about how this criterion could affect you, we’d be glad to look into it with you.