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BOE-A-2026-10817 ·19 May 2026 ·Act critical
Administrative

Businesses and individuals: update euro exchange rates as of May 18, 2026

The Bank of Spain publishes updated euro exchange rates approved by the European Central Bank on May 18, 2026, and considers them official under Article 36 of Law 46/1998 (art. 36). This change impacts all entities conducting financial operations or requiring official exchange rates for calculations, invoicing, or international payments.

In 2 key points

  1. Official exchange rates will be updated on 18 May 2026 (Art. 36) (art. 36)
  2. Rates are published against 30 currencies, including USD, JPY, EUR, and others (full text) (texto fuente)

How it affects those involved

Businesses, individuals, and financial institutions must update their exchange rate calculations from 18 May 2026 to avoid errors in invoicing, payments, or conversions. Advisors and international operations managers must review their calculation systems and ensure official data is up to date. Authorities managing international payments must also adjust their records from this date.

Lifecycle

2026-05-19PublishedPublished in the BOE
2026-05-18Into forceComes into force (art. 36)
Official text Based on BOE data (boe.es). Information, not advice.

Does this provision affect you?

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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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