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BOE-A-2026-13459 ·20 June 2026 ·Act critical
Administrative

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

The Bank of Spain resolution publishes the euro exchange rates as of June 19, 2026, approved by the ECB, which now have official effect (Art. 36 of Law 46/1998). These rates replace previous ones and must be used in financial operations, contracts, and tax declarations. The change affects all users of euro exchange rates, especially in international operations.

In 2 key points

  1. Official exchange rates will be updated on 19 June 2026 with immediate effect (art. 36 Ley 46/1998)
  2. The rates published by the ECB are those that must be used for financial and tax transactions (art. 36 Ley 46/1998)

How it affects those involved

Businesses and individuals engaged in international transactions must update their exchange rate calculations as of 19 June 2026. Tax and financial authorities will be required to apply these rates to tax returns and payments. Advisors must review their calculations to ensure clients use the official rates. Errors in calculation may lead to penalties or discrepancies in tax compliance.

Lifecycle

2026-06-20PublishedPublished in the BOE
2026-06-20Into 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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