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BOE-A-2026-6088 ·14 March 2026 ·Resolution Low impact
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 13, 2026, in accordance with Article 36 of Law 46/1998. These rates replace previous ones and must be incorporated into financial records and international trade operations. The change affects all users of foreign currencies in Spain, especially in international trade or accounting. The rates are considered official from publication date and must be updated in financial records within one month.

In 2 key points

  1. The official exchange rates are published on 13 March 2026 and must be applied to financial records (art. 36 Ley 46/1998)
  2. The deadline for updating records is one month from the date of publication (disposiciones transitorias)

How it affects those involved

For businesses and individuals carrying out international transactions, it is mandatory to update their financial records with the new exchange rates to avoid accounting errors and tax filings mistakes. Authorities and account managers must review existing records and apply the updated rates. Financial advisors must inform their clients of the need to update their records. Non-compliance carries the risk of accounting errors and potential tax penalties.

Lifecycle

2026-03-14PublishedPublished in the BOE
2026-03-14Into forceComes into force (disposiciones transitorias)
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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