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BOE-A-2026-2720 ·5 February 2026 ·Resolution Low impact
Administrative

Businesses and individuals: 3 months to update official exchange rates or deviation risks

The Bank of Spain's resolution publishes the euro exchange rates for 4 February 2026 set by the ECB, now officially effective under Article 36 of Law 46/1998. These rates replace previous ones and must be used in financial operations, contracts, and official communications. The change impacts all sectors using the euro in international transactions.

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 come into effect from 4 February 2026 (date of publication) (fecha de publicación: 4 de febrero de 2026)

How it affects those involved

Businesses, companies and individuals carrying out international transactions must update their foreign exchange calculations to avoid errors in pricing, payments or costs. Financial institutions should review their internal systems to ensure they reflect the new rates. Finance advisors and accountants should inform their clients about the update. There is no direct penalty, but mistakes could lead to economic losses or contractual disputes.

Lifecycle

2026-02-05PublishedPublished in the BOE
2026-02-04Into forceComes into force (fecha de publicación: 4 de febrero 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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