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BOE-A-2026-11579 ·28 May 2026 ·Act critical
Administrative

Businesses and individuals: 30 days to update official euro exchange rates

The Bank of Spain Resolution publishes the official euro exchange rates for 27 May 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 users of exchange rates in financial transactions, international trade, or foreign currency payments, as the previous rates are replaced by the newly published ones. The rates are considered official from the date of the document's publication in the BOE.

In 2 key points

  1. Official exchange rates are updated to 1 euro = 1.1637 US dollars (Art. 36 Law 46/1998) (art. 36 Ley 46/1998)
  2. The rates published by the ECB have official effect from 27 May 2026 (Resolución de 27 de mayo de 2026)

How it affects those involved

Traders, businesses, and individuals conducting international transactions must update their exchange rate calculations as of 27 May 2026. Public administrations and banks must use the new rates for official payments and conversions. Financial advisors should review their calculations and communicate these changes to their clients. Errors in applying the rates may result in losses during exchange operations.

Lifecycle

2026-05-28PublishedPublished in the BOE
2026-05-27Into forceComes into force (Resolución de 27 de mayo de 2026)
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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