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BOE-A-2026-12172 ·5 June 2026 ·Act critical
Administrative

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

The Bank of Spain Resolution publishes the official euro exchange rates for 4 June 2026, in accordance with ECB data, and establishes that these rates shall have official effect pursuant to Law 46/1998 (Art. 36). This change affects all sectors using official exchange rates for financial or commercial transactions. The published rates supersede previous ones and must be adopted by financial institutions and traders for official calculations.

In 3 key points

  1. 1 euro = 1.1640 US dollars (Art. 36 Law 46/1998) (art. 36 Ley 46/1998)
  2. Official rates published on 4 June 2026 (Art. 1) (art. 1)
  3. Official change of rates pursuant to Law 46/1998 (Art. 36) (art. 36 Ley 46/1998)

How it affects those involved

Businesses and individuals conducting international transactions must update their exchange rate calculations based on the new official publication. Financial institutions must adjust their internal systems and communications. Financial and trade advisors should review budgets and contracts to ensure calculation accuracy. The risk of conversion errors may increase if updates are not implemented in a timely manner.

Lifecycle

2026-06-05PublishedPublished in the BOE
2026-06-04Into forceComes into force (art. 1)
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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