Oman and Spain signed a double taxation agreement (DTA) on April 30, 2014. No further details of this agreement are currently available.

Oman and Angola signed an income tax treaty to eliminate double taxation and prevent tax evasion and avoidance on 21
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Peru's Ministry of Foreign Affairs, in a release, confirmed that officials from Peru and Spain met on 8 September 2026
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Oman and Rwanda signed an agreement on income tax treaty with respect to taxes on income and the prevention of tax
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Spain's General Directorate of Taxes (DGT) has ruled that publicly owned commercial entities are not automatically
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The Spanish Senate has urged the Government to integrate VERI*FACTU, SII and mandatory B2B e-invoicing into a single
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Oman has amended its Value Added Tax Law Regulations to introduce a two-phase mandatory electronic invoicing regime,
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