Official euro exchange rates of April 7, 2026: what it means for companies

Key data

Companies with international activity have an obligation that many manage incorrectly: using the official euro exchange rate for conversions with legal value. The Bank of Spain has published, in accordance with article 36 of Law 46/1998 on the Introduction of the Euro, the official exchange rates corresponding to April 7, 2026, set by the European Central Bank.

These rates are not indicative. They have official character and are mandatory reference for any operation requiring currency conversion with legal value. This includes international contracts, tax settlements, accounting valuations and financial transactions.

What does this regulation establish?

The Bank of Spain resolution contains the euro exchange rates against the main world currencies, as set by the European Central Bank for April 7, 2026. Its publication in the BOE of April 8, 2026 gives it official character.

The mechanism is as follows:

• The ECB sets daily reference exchange rates for the euro against the main currencies.
• The Bank of Spain publishes them in the BOE by resolution, in accordance with article 36 of Law 46/1998.
• From that moment, these rates have the status of official exchange rates with full legal validity in Spain.
• Their daily publication guarantees transparency and legal certainty in commercial and financial transactions.

This publication does not modify any previous regulation: it is a periodic and recurring resolution that updates the rates in force for each business day.

Economic and operational impact

The direct impact of these exchange rates depends on the volume and nature of each company's international operations. The main operational effects are:

• Valuation of contracts in foreign currency: any contract denominated in foreign currency must be converted to euros using the official rate in force on the date of the operation or as agreed contractually.
• Calculation of taxable bases: in import and export operations, the official rate is the reference for determining the value in euros for VAT and other tax purposes.
• Accounting exchange differences: companies that maintain assets or liabilities in foreign currencies must record exchange differences using official rates on the dates of closing or settlement.
• International contracts: when a contract establishes that conversion will be made at the official rate of the Bank of Spain, this is the applicable rate with no possibility of substitution.

Using an exchange rate different from the official one in operations with legal value can generate discrepancies before a Tax Agency inspection or in contractual disputes, with the resulting risk of adjustments, surcharges or challenges.

Who does it affect?

• Import and export companies that invoice or receive payments in currencies other than the euro.
• Companies with subsidiaries, suppliers or customers in countries outside the eurozone (USA, United Kingdom, Japan, China, etc.).
• Accounting and finance departments that must record exchange differences or value assets and liabilities in foreign currency.
• Tax advisors and auditors who verify the correct application of exchange rates in tax returns and annual accounts.
• CFOs and financial directors responsible for managing exchange rate risk.
• Companies with international contracts that include conversion clauses at the official rate of the Bank of Spain.
• Individuals with currency operations that require proof of value in euros before public bodies.

Practical example

Imagine a Spanish manufacturing company that imports electronic components from the United States. On April 7, 2026, it receives an invoice from its supplier for 100,000 US dollars (USD).

To correctly record that invoice in its accounting and calculate the VAT base for the import, the finance department must apply the official EUR/USD exchange rate published by the Bank of Spain for April 7, 2026, which is what this resolution contains.

If the company used an exchange rate from its commercial bank or a currency exchange platform instead of the official rate, the resulting valuation could differ from the legally recognized value. In a tax inspection, the Tax Agency would take the official rate published in the BOE as reference, which could generate an adjustment in the declared taxable base.

The solution is simple: consult the BOE resolution corresponding to the date of the operation and apply the published rate for the currency in question.

What should companies do now?

1. Identify all currency operations on April 7, 2026 that require conversion with legal value (invoices, contracts, settlements, accounting valuations).
2. Apply the official exchange rate published in this resolution for the corresponding currency, instead of commercial bank rates or other non-official references.
3. Review current international contracts to verify if they include clauses referring to the official rate of the Bank of Spain, and ensure it is applied correctly.
4. Update the procedures of the finance department so that daily consultation of the official rate is part of the workflow in currency operations.
5. Archive the BOE resolution corresponding to each operation date as documentary support in case of possible inspections or audits.
6. Consult with your tax advisor or auditor if there are doubts about the correct application of the official rate in returns already filed or in progress.