Foral Corporate Tax Extraordinary Profit Surcharge in Spain
Compute the 2026–2030 extraordinary-profit surcharge in Bizkaia, Gipuzkoa and Álava corporate tax. Covers which companies are in scope by nominal rate and the art. 13 medium-company exclusion, the Bizkaia/Gipuzkoa profit measure before depreciation and impairment with its regulatory exclusions, the mean of the three prior positive measures, the 1% to 4% growth slices applied to the corresponding gross-quota portion, the ordinary attribution ledger, and Álava's own-law net-result interpretation with the tax-expense feedback. Use for gravamen sobre beneficios extraordinarios, recargo, cuota íntegra incrementada and beneficio contable in the Basque territories. Navarra has no such surcharge in this pack. Load es-foral-corporate-tax first for the base and the quota. Split unchanged from es-foral-corporate-tax on 6 November 2026.
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