FIAE: what warnings should you check in a mortgage

What the FIAE is and why you should read it carefully

The Standardised Warnings Sheet (FIAE) is one of the pre-contractual documents that, in a mortgage, must be provided before signing together with the FEIN and the rest of the documentation required under Law 5/2019. Its purpose is not to describe the entire transaction in detail, but to draw your attention to the most sensitive clauses or elements of the loan. Article 14 states that it must be delivered at least ten calendar days before the contract is signed and that it must include, at least, references to the official indices if the interest rate uses them, to any minimum interest rate limits where they exist, to early repayment due to default and the associated costs, to the allocation of the costs of the loan arrangement and to whether it is a foreign-currency loan. It also provides for a separate document with special reference to instalments under different scenarios if the loan is variable. Law 5/2019, art. 14

Put simply: the FIAE is not a piece of paper to be “glanced over”, but a warning guide that helps you spot where there may be legal or financial risk. If a warning does not match what you understand from the offer, you should ask for clarification before moving forward. The pre-contractual information is designed precisely so that you can review the financial burden and legal consequences with enough time.

Warnings you should check one by one

When taking out a mortgage, it is worth reviewing the FIAE in a set order. It is not enough to skim it; the useful approach is to check whether each warning fits your actual case.

1. **Official reference indices**. If the loan is linked to an index, the FIAE must mention it. You should identify which index it is and whether the offer depends on a specific external benchmark.

2. **Minimum interest rate limits**. The law requires, where applicable, the existence of minimum interest rate limits as a result of the downward variation of the indices or rates to which the loan is referenced. If there is a floor or equivalent mechanism, it must be made clear.

3. **Early repayment due to default**. The FIAE must warn about the possibility of early repayment and the costs arising from it. This is no minor detail: it is one of the most sensitive warnings because it affects the continuity of the contract.

4. **Allocation of costs**. It must state which costs are borne by the lender and which by the borrower. The law expressly sets out the allocation of certain costs associated with granting the loan.

5. **Foreign currency**. If the loan is denominated in a foreign currency, the warning must be clear. Exposure to exchange rates can affect the actual amount you end up paying.

6. **Interest rate scenarios**. If the loan is variable-rate, there must be a separate document with special reference to the periodic instalments under different interest-rate scenarios.

The key is not to memorise every sentence, but to check whether there is any warning that would change the purchase decision or the need to renegotiate terms.

Term, currency and risk: what you should not overlook

The FIAE is mainly there to help you assess three risk areas: term, currency and variation in the cost of the loan.

**Term.** Law 5/2019 requires the documentation to be delivered at least ten calendar days before signing. That period exists so that you do not make a rushed decision. If you are given the documentation late, incomplete or with last-minute changes, you should not sign without first reviewing what has changed.

**Currency.** When the loan currency does not match the currency of your usual income, the risk is not only exchange-rate risk; it is also a household budget risk. Article 14 requires a warning if the loan is in a foreign currency. In addition, Annex I of the law sets out how, when the currency of the credit differs from the borrower’s national currency, the potential risks associated with the exchange rate and warnings about significant fluctuations must be highlighted. This is especially important because instalments can become more expensive due to exchange-rate movements, even if the interest rate does not rise.

**Interest-rate risk.** If the loan is variable, the FIAE must be accompanied by a separate document with instalment scenarios. The warning is not decorative: if a rise in rates puts strain on your ability to pay, the problem will not be theoretical, but real. Annex I states that the information must prominently highlight all applicable risk warnings and clearly explain how they affect the APR and the instalment when the interest rate is variable.

How to review the FIAE before signing

1. **Check that the documentation is complete**: FIAE, FEIN, draft contract and, if the loan is variable, the separate scenarios document.

2. **Read the underlined or highlighted warnings**: that is precisely where the most important contractual changes usually are.

3. **Compare the FIAE with the FEIN**: if there are contradictions, ask for them to be clarified in writing before signing.

4. **Review the currency and the reference index**: if either does not match what you were expecting, do not leave it until the end.

5. **Ask for an explanation of any limit, floor, fee or associated condition**: if you do not understand it on a normal reading, you probably need more time.

6. **Do not confuse commercial information with legal warning**: the FIAE is there to highlight risks and relevant elements, not to sell you the deal.

As a practical tip, always keep a copy of the version you are given and note down any questions before going to sign. If anything changes between delivery and the notary appointment, ask them to explain exactly what has been modified.

Common mistakes when reviewing a mortgage

- **Thinking the FIAE is a summary with no real value**. In fact, it contains legal warnings that can affect your decision.

- **Looking only at the initial instalment**. If there is a variable rate or foreign currency, the risk lies in future changes.

- **Not checking early repayment**. It is an essential warning because it links default with serious consequences.

- **Assuming all costs are split equally**. The law requires clear information about who bears what.

- **Signing without understanding the loan currency**. If the currency is not yours, the exposure to exchange-rate movements should be assessed calmly.

What to do if you spot a warning that does not fit

If a warning in the FIAE concerns you, the right step is not to sign “and see what happens”. The sensible approach is to stop and ask for a specific clarification. You can request written confirmation of the scope of the index, the minimum limit, the currency or the early repayment scenario. If the loan does not suit your risk profile, you may need to review the purchase transaction as a whole before continuing.

If you want a guide valuation of your home in Madrid to compare buying or selling scenarios, you can use the UBICASA online valuation, which offers a guide range, PDF report and optional visit. If you prefer a personal review, you can write to us at contact or visit us at Calle Montesa 29, Madrid, Monday to Friday from 10:00 to 15:00 and from 16:00 to 19:00.

In short, the FIAE should help you identify whether the mortgage has warnings about term, currency, variable rate, early repayment and cost allocation. If you understand those alerts properly before signing, you reduce the risk of accepting a deal that does not fit your actual ability to pay.