v3.26.1
Income tax (Details 1) - SEK (kr)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Notes and other explanatory information [abstract]    
Loss before tax kr (1,722,710) kr (962,280)
Swedish tax rate of 20.6% 354,878 198,600
Tax effect of non-deductible expenses (1,363) (63,211)
Tax effect of non-taxable income 39,143 23,130
Movement in unrecognized deferred tax assets (161,547)
Tax effect of adjustments related to previous periods (243)
Tax effect of changes in deferred tax liabilities 5,639
Tax effect of loss carry forwards not recognized as deferred tax (234,230) (163,720)
Effect of different tax rates for subsidiaries in other jurisdiction (1,243) (130)
Total income tax expense kr 1,034 kr (5,331)