Spain’s Tax Agency Steps Up Scrutiny of Loans Between Family Members: Tax Risks and How to Avoid Reassessment

In recent months, a significant shift has taken shape in the Spanish Tax Agency’s approach to loans between family members.

An arrangement widely used for years—documenting an interest-free loan in a private agreement—is now facing much closer scrutiny from the authorities.

The result is clear: transactions once commonly treated as valid are being reclassified, with potentially significant tax consequences for taxpayers.

---

A change in approach: from formal documents to economic substance

Until relatively recently, a private agreement accompanied by a bank transfer was, in many cases, enough to evidence a loan between individuals.

The Tax Agency’s current approach has moved towards a substantive analysis of the transaction. The authorities no longer check only whether a formal agreement exists; they also examine the underlying economic reality.

In practice, this means taxpayers may be asked to provide more comprehensive evidence.

---

What the Tax Agency is currently asking for

During verification and inspection proceedings, the Tax Agency commonly requests:

• Evidence of the lender’s source of funds.
• Evidence of the lender’s actual financial capacity.
• Consistent bank transactions.
• Proof that repayments were actually made.
• A reasonable repayment schedule that has been followed.

The central issue is traceability: whether the full flow of funds can be reconstructed clearly and consistently.

---

The consequence: reclassification of the transaction

Where these elements are not sufficiently evidenced, the authorities may reclassify the transaction.

This means the advance may cease to be treated as a loan and may instead be taxed according to its actual economic nature, under the Tax Agency’s assessment. The main possible reclassifications are:

• A disguised gift, subject to Spain’s Inheritance and Gift Tax.
• An unjustified capital gain for Spanish Personal Income Tax (IRPF) purposes.

Either outcome can have a significant tax impact, particularly if penalties and late-payment interest are added.

---

A common risk in practice

A frequent scenario involves transfers between relatives documented as interest-free loans, but with no actual repayment or no coherent financial structure.

In such cases, the authorities may conclude that there was no genuine intention to repay the amount, which can lead to the transaction being treated as a gift.

These reassessments are becoming increasingly common.

---

The key: economic evidence, not just formal paperwork

The most significant change is conceptual. The validity of the arrangement no longer depends solely on the existence of a signed document, but also on the ability to demonstrate its economic reality.

In other words, documenting the transaction is not enough: it must also be possible to substantiate it financially.

---

Implications for taxpayers and advisers

This approach means that many transactions carried out in the past under less demanding standards may need to be reviewed.

It also highlights the need to structure future transactions between relatives properly, taking into account:

• Economic coherence.
• Banking traceability.
• Whether repayments are genuinely made.

Preventive planning is essential.

---

Conclusion

Tax scrutiny of transactions between individuals is changing significantly. Family loans remain a valid financing tool, but they require much greater care in their design and documentation.

In this context, acting early matters. Reviewing an arrangement before a possible tax check can help identify risks and, where appropriate, take corrective steps to avoid significant financial consequences.

---

Practical approach

If you have entered into transactions with relatives in recent years, particularly for significant amounts, it is advisable to review their structure in light of the current tax approach.

The Tax Agency’s position has changed. Acting before an inspection may make the difference between an orderly reassessment and proceedings with significant financial consequences.

Spanish original: Hacienda intensifica el control sobre los préstamos entre familiares: claves fiscales y riesgos de regularización