Key data
| Regulation | Resolution of June 25, 2026, from the Bank of Spain — official euro exchange rates published by the ECB |
|---|---|
| BOE Publication | June 26, 2026 |
| Effective date | June 25, 2026 |
| Affected parties | Companies and individuals with operations in foreign currencies or international trade |
| Category | Regulatory Changes |
| Legal basis | Article 36 of Law 46/1998, of December 17, on the Introduction of the Euro |
| Year | 2026 |
Companies with operations in dollars, yen, pounds or Swiss francs now have an official reference to work with. The Resolution of the Bank of Spain published in the BOE on June 26, 2026 contains the exchange rates set by the European Central Bank for June 25, 2026, with full legal and accounting validity under article 36 of Law 46/1998.
This is not a guidance rate: its publication in the BOE gives it the status of official exchange rates, which means they are the legal reference for any legal or accounting purpose that requires it on that specific date.
What does this regulation establish?
The Bank of Spain publishes daily, in accordance with article 36 of Law 46/1998, the exchange rates that the ECB sets for the euro against the main world currencies. These rates are published in the BOE the day after their setting and acquire the status of official exchange rates.
The rates set for June 25, 2026 are as follows:
| Currency | Code | Exchange rate (per 1 euro) |
|---|---|---|
| US dollar | USD | 1.1342 |
| Japanese yen | JPY | 183.57 |
| British pound | GBP | 0.86183 |
| Swiss franc | CHF | 0.9223 |
These values are the legal reference for any contract, settlement or accounting valuation that requires an official exchange rate dated June 25, 2026. They cannot be replaced by market rates or bank rates when applicable regulations require the use of the official rate.
Economic and operational impact
The official exchange rate is not just a statistical figure: it has direct consequences on the income statement of any company with currency exposure.
- USD contracts: With the euro at 1.1342 dollars, every 100,000 USD equals approximately 88,166 euros. A variation of cents in the rate can mean thousands of euros difference in high-volume operations.
- Operations with Japan: The yen trades at 183.57 per euro, which means that 10 million yen equals approximately 54,476 euros.
- Trade with the United Kingdom: The pound at 0.86183 means that 100,000 GBP equals approximately 116,024 euros, relevant for companies with British suppliers or customers post-Brexit.
- Operations with Switzerland: The Swiss franc at 0.9223 means that 100,000 CHF equals approximately 108,427 euros.
From an accounting perspective, these rates are the reference for the conversion of foreign currency items in financial statements, the calculation of exchange differences and the valuation of assets and liabilities in currencies at the closing date or transaction date.
Who does it affect?
- Importing companies that purchase in USD, JPY, GBP or CHF and need to calculate the cost in euros of their supplies.
- Exporting companies that invoice in currencies and must convert income to euros for accounting purposes.
- Finance and treasury departments that manage exchange rate hedges or open positions in currencies.
- Tax and accounting advisors who must apply the official rate in declarations, settlements or valuations of related operations.
- Companies with international contracts that include price revision clauses referenced to the official exchange rate.
- Law firms and arbitrators in proceedings where a debt or compensation expressed in foreign currency must be quantified in euros.
- Individuals with occasional operations that require proving the euro value of a transaction in currency on that specific date.
Practical example
A Spanish company imports industrial machinery from the United States for a value of 500,000 USD, with accrual date on June 25, 2026. To record the operation in euros, it must apply the official rate published by the Bank of Spain for that date.
Applying the official rate of 1.1342 USD per euro:
500,000 USD ÷ 1.1342 = 440,838.47 euros
This is the amount that must be recorded in its accounting. If the company had used a slightly different bank exchange rate (for example, 1.1300), the resulting amount would be 442,477.88 euros, a difference of more than 1,600 euros in a single operation. In audits or tax inspections, the use of the official rate is the correct criterion when regulations require it.
What should companies do now?
- Record the official rate in the accounting system for all operations with value date June 25, 2026 involving USD, JPY, GBP or CHF.
- Review existing contracts that include clauses referencing the official ECB or Bank of Spain rate: check if the June 25 rate triggers any price revision or settlement.
- Update valuations of assets and liabilities in currency if the accounting closing or reference date coincides with June 25, 2026.
- Communicate the rate to purchasing and sales teams so they can adjust budgets, offers and purchase orders being negotiated with reference to this date.
- Keep the official receipt (the BOE resolution) as documentary support in case of tax or accounting audit that questions the applied exchange rate.
Frequently asked questions
What is the official euro exchange rate against the dollar on June 25, 2026?
The official rate set by the ECB and published by the Bank of Spain for June 25, 2026 is 1.1342 USD per euro. This rate has full legal validity for contracts, settlements and accounting operations that require the official rate on that date.
Where can I consult the official exchange rates of the Bank of Spain?
Official exchange rates are published daily in the Official State Gazette (BOE) by resolution of the Bank of Spain. The publication corresponding to June 25, 2026 has reference BOE-A-2026-13940.
What exchange rate should I use to account for a British pound invoice from June 25, 2026?
For operations dated June 25, 2026, the official rate is 0.86183 GBP per euro, which is equivalent to 1 British pound being worth approximately 1.1603 euros. This is the rate that companies must apply for the accounting conversion of invoices, collections or payments in pounds with that accrual date.
How many euros equal 1 million yen according to the official rate of June 25, 2026?
With the official rate of 183.57 JPY per euro, 1,000,000 yen equals approximately 5,448 euros. This calculation is what companies with commercial or financial operations with Japan must use to correctly record the operation in their accounting.
What happens if I use a different exchange rate than the official one in my accounting records?
When applicable regulations (tax, accounting or contractual) require the use of the official rate, applying a different rate can generate incorrect exchange differences, errors in the tax base and risk of adjustment in an inspection. For operations on June 25, 2026, the official rate published in the BOE is the mandatory legal reference when required by regulations or contract.
Official source
Consult complete regulation in official source
Notice: This article is for informational purposes only and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://www.boe.es/diario_boe/txt.php?id=BOE-A-2026-13940