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BOE-A-2026-10982 ·21 May 2026 ·Act critical
Administrative

Businesses and individuals: one month to update official euro exchange rates

The Bank of Spain Resolution publishes the official euro exchange rates for 20 May 2026, as determined by the ECB, and establishes that these rates shall have official effect in accordance with Law 46/1998 (Art. 36). This change affects all sectors using official exchange rates for financial or commercial operations, such as invoicing, international payments, or cost calculations. The published rates are those that must be used in practice from that date.

In 2 key points

  1. 1 euro = 1.1600 US dollars (official rate from 20/05/2026) (CAMBIOS)
  2. Official rates published by the ECB have legal effect pursuant to Art. 36 of Law 46/1998 (art. 36 Ley 46/1998)

How it affects those involved

Traders, businesses, and individuals conducting international transactions must update their exchange rate calculations from 20 May 2026. Public administrations and financial managers must adopt the new rates in their invoicing and payment processes. Financial advisors should inform their clients about the update to official rates to prevent calculation errors. The change does not imply new obligations but does require a data update.

Lifecycle

2026-05-21PublishedPublished in the BOE
2026-05-21Into forceComes into force (disposición final)
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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