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BOE-A-2026-6305 ·17 March 2026 ·Act critical
Administrative

Businesses and individuals: 1 month to update official exchange rates in financial records

The Bank of Spain publishes official exchange rates for the euro as of March 16, 2026, in accordance with Article 36 of Law 46/1998. These rates replace previous ones and must be incorporated into financial records and foreign exchange operations. The change impacts all users of foreign currencies in Spain, especially in international trade or foreign payment operations.

In 2 key points

  1. Official exchange rates are updated daily in accordance with the ECB (Art. 36 Law 46/1998) (art. 36 Ley 46/1998)
  2. The new rates must be incorporated into financial records and commercial transactions (art. 36 Ley 46/1998)

How it affects those involved

Businesses and individuals conducting foreign exchange transactions must update their financial records with the new rates to ensure regulatory compliance. Public administrations and financial institutions must verify their internal systems to prevent errors in payments or declarations. Financial advisors must inform their clients about the new rates and the update deadlines. Errors in application may lead to discrepancies in balance sheets or tax filings.

Lifecycle

2026-03-17PublishedPublished in the BOE
2026-03-17Into forceComes into force (Resolución de 16 de marzo de 2026, del Banco de España)
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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