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BOE-A-2026-6399 ·18 March 2026 ·Act critical
Administrative

Businesses and individuals: 3-month window to update official exchange rates or risk discrepancies

The Bank of Spain Resolution publishes the official euro exchange rates for 17 March 2026, in accordance with Article 36 of Law 46/1998. These rates have legal effect and must be used by businesses and individuals in financial transactions. The change directly affects the calculation of foreign currency amounts, particularly in international payments or currency conversions.

In 3 key points

  1. The official euro exchange rates are published on 17 March 2026 and have legal effect (art. 36 Ley 46/1998)
  2. 1 euro = 1.1531 US dollars (official rate for 17 March 2026) (cambio 1 euro = 1,1531 dólares USA)
  3. The rates affect international financial transactions and currency conversions (art. 36 Ley 46/1998)

How it affects those involved

Companies conducting international operations must update their exchange rate calculations to avoid errors in invoicing, payments, or pricing. Individuals making purchases or travelling in foreign currencies may see changes in their conversions. Financial advisors must incorporate the new rates into their reports and advice. While the Bank of Spain does not set specific adaptation deadlines, the rates are immediately applicable.

Lifecycle

2026-03-18PublishedPublished in the BOE
2026-03-17Into forceComes into force (art. 36 Ley 46/1998)
Official text Based on BOE data (boe.es). Information, not advice.

Does this provision affect you?

The administrative team reviews your specific situation.

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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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