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BOE-A-2026-10888 ·21 May 2026 ·Act critical
Tax

Companies with over 10 employees: 1 January 2026 deadline for tax changes due to Middle East crisis

Regional Decree-Law 1/2026 amends Article 35.I.B) of the 1999 consolidated text to adjust fiscal measures in response to the crisis in the Middle East. This amendment will come into force on 1 January 2026, affecting companies with more than 10 employees. The change aims to strengthen the local tax system amidst the international economic crisis.

In 2 key points

  1. Implementation of tax changes from 1 January 2026 (disposición adicional 65 del texto refundido 4/2008)
  2. Amendment of Article 35.I.B) of the consolidated text 129/1999 (art. 35.I.B) del texto refundido 129/1999)

How it affects those involved

Companies with more than 10 employees must adapt their tax returns from 1 January 2026. Tax advisors must review tax calculations in accordance with the new article. Local authorities will be able to apply the new regulations from that date. While there is no direct impact on employees, the tax burden may affect corporate budgets.

Lifecycle

2026-05-21PublishedPublished in the BOE
2026-04-20Into forceComes into force (fecha_vigencia (indice oficial del BOE))
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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