Official euro exchange rates on April 23, 2026: key information for companies with foreign currencies

Key data

If your company operates with currencies other than the euro, the exchange rate you apply in your accounting or tax records is not optional: it must be the official rate published by the Bank of Spain in the BOE for each specific day. For April 23, 2026, that reference is the Resolution published on April 24, 2026, in accordance with article 36 of Law 46/1998 on the Introduction of the Euro.

These rates are set daily by the European Central Bank (ECB) and their publication in the BOE by the Bank of Spain gives them official status in Spain. They are not indicative: they are the reference that companies, advisors and financial entities must use for any operation requiring currency conversion with accounting, tax or commercial effects.

What does this regulation establish?

The resolution applies the mechanism provided for in article 36 of Law 46/1998, which requires the daily publication in the BOE of euro exchange rates set by the ECB. This procedure ensures that there is a single, official and verifiable reference for any economic agent in Spain that needs to convert currencies.

The rates published for April 23, 2026 cover the main world currencies against the euro. Their official status means that:

• They are the reference for the accounting valuation of assets and liabilities in foreign currency on that date.
• They must be used in tax returns that require currency conversion (VAT on international operations, Corporate Income Tax, etc.).
• They are the basis for commercial and financial operations that require an official exchange rate.

The procedure is the same every business day: the ECB sets the rates, the Bank of Spain publishes them in the BOE the next day, and that publication gives them official validity for the date to which they correspond.

Economic and operational impact

For most companies with international operations, the impact of these exchange rates is daily and direct. Any variation in the official rate compared to the previous day can affect the value recorded for:

• Invoices issued or received in foreign currency pending collection or payment.
• Balances in bank accounts denominated in currencies other than the euro.
• Import or export contracts valued in foreign currency.
• Loans, credits or financial instruments in foreign currencies.

The most common operational risk is applying an exchange rate different from the official one in accounting records, which can generate valuation differences that may be identified in a tax inspection or audit. The correct reference for April 23, 2026 is exclusively the one published in this BOE resolution.

For financial entities, the relevance is even greater: the daily valuation of portfolios with currency exposure depends directly on these official rates.

Who does it affect?

• Importing companies: must apply the official rate to value purchases in foreign currency on the date of the operation.
• Exporting companies: need the official rate to record income in foreign currencies and calculate possible exchange differences.
• Financial entities: use these rates for daily valuation of assets, liabilities and financial instruments in foreign currency.
• Companies with international subsidiaries or suppliers: any intergroup transaction or payment to a foreign supplier in foreign currency requires the official rate of the operation date.
• Tax and accounting advisors: must apply the official BOE rate when preparing tax returns and accounting closures with foreign currency operations.
• CFOs and financial directors: managing exchange rate risk requires daily monitoring of these official rates.

Practical example

A Spanish electronics component importing company receives on April 23, 2026 an invoice from its US supplier for 100,000 dollars. To correctly record that invoice in its accounting and for the calculation of import VAT, it must convert that amount to euros applying the official euro/dollar exchange rate published by the Bank of Spain for April 23, 2026, in accordance with this BOE resolution.

If the company applies a different exchange rate (for example, that of its commercial bank or from a previous day), the amount recorded will differ from what the regulation requires, which can generate adjustments in an inspection by the Tax Agency. The only valid reference for that date is the one published in the Resolution of April 23, 2026 from the Bank of Spain.

The same applies to exporters who invoice in dollars, pounds or other currencies: the official rate of the day of the operation is the one that must appear in accounting and tax records.

What should companies do now?

1. Verify the official rate for April 23, 2026 in the resolution published in the BOE (BOE-A-2026-9037) for any currency operation recorded on that date.
2. Review internal accounting processes to ensure that the ERP system or financial team automatically applies the official BOE rate and not the commercial bank rate.
3. Document the rate applied in each foreign currency operation, leaving traceability of the official source used to facilitate possible tax reviews or audits.
4. Establish a daily consultation procedure for official rates if the company regularly operates with foreign currencies, since these rates are updated every business day.
5. Consult with your tax or accounting advisor if there are doubts about which rate to apply in operations with a value date different from the accounting record date.