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BOE-A-2026-9357 ·29 April 2026 ·Resolution Low impact
Administrative

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

The Bank of Spain publishes the euro exchange rates as of April 28, 2026, approved by the ECB, which now have official status (Art. 36 of Law 46/1998). These rates replace previous ones and must be incorporated into financial, accounting, or trade records. The change affects all entities using official exchange rates for economic or tax calculations.

In 2 key points

  1. Official exchange rates are updated daily by the ECB (Article 36 of Law 46/1998) (art. 36 Ley 46/1998)
  2. The new rates must be incorporated into financial and accounting records within one month (practical implication) (art. 36 Ley 46/1998)

How it affects those involved

Businesses and individuals carrying out international transactions must update their financial records with the new exchange rates to comply with tax and accounting regulations. Banks and fund managers must review their rate calculation systems. Financial advisers must inform their clients about the update. Errors in application may result in fines or incorrect tax declarations.

Lifecycle

2026-04-29PublishedPublished in the BOE
2026-04-29Into forceComes into force (art. 36 Ley 46/1998)
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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