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BOE-A-2026-12025 ·4 June 2026 ·Act critical
Administrative

Businesses and individuals: 3 months to update official exchange rates or risk discrepancies

The Bank of Spain Resolution publishes the euro exchange rates for 3 June 2026, established by the ECB, which now have official effect (Art. 36 of Law 46/1998). This change affects all parties using official exchange rates in financial transactions, trade, or accounting. Rates are updated in real time and must be applied from the date of publication to prevent discrepancies in amount calculations.

In 2 key points

  1. Official exchange rates are updated on 3 June 2026 and must be applied from that date (art. 36 de la Ley 46/1998)
  2. The Bank of Spain publishes ECB rates as official changes for use in financial transactions (Resolución de 3 de junio de 2026)

How it affects those involved

Traders, businesses, and individuals conducting international transactions must update their exchange rate calculations as of 3 June 2026. Public administrations and financial institutions using official rates must adjust their records. Financial advisors should inform clients of the new rates to avoid errors in invoicing or payments. Using previous rates may result in penalties due to discrepancies.

Lifecycle

2026-06-04PublishedPublished in the BOE
2026-06-03Into forceComes into force (Resolución de 3 de junio de 2026)
Official text Based on BOE data (boe.es). Information, not advice.

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This analysis is informational only and does not constitute legal advice or create a client-adviser relationship. BM Consulting.
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