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BOE-A-2026-6637 ·21 March 2026 ·Act critical
Administrative

Businesses and individuals: 1 euro = 1.1555 US dollars (immediate update)

The Bank of Spain Resolution publishes the new euro exchange rates for 20 March 2026, as established by the European Central Bank. These exchange rates are official and must be used for financial transactions, contracts, and tax returns. The update takes effect immediately and does not require an additional period for application.

In 2 key points

  1. 1 euro = 1.1555 US dollars (official rate from 20 March 2026) (CAMBIOS 1 euro = 1,1555 dólares USA)
  2. The published exchange rates are official pursuant to Article 36 of Law 46/1998 (de acuerdo con lo dispuesto en el artículo 36 de la Ley 46/1998)

How it affects those involved

Businesses, individuals, and public administrations conducting international transactions must update their currency conversion calculations immediately. Financial advisors and account managers should review their calculations to prevent errors in invoices, payments, or tax filings. Traders operating in foreign currencies may see changes to their margins or import/export costs based on the new exchange rates.

Lifecycle

2026-03-21PublishedPublished in the BOE
2026-03-20Into forceComes into force (Resolución de 20 de marzo de 2026, del Banco de España)
Official text Based on BOE data (boe.es). Information, not advice.

Does this provision affect you?

The administrative team reviews your specific situation.

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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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