Nine free calculators and overviews for the self-employed (OSVČ) — income tax, flat-rate tax, VAT, net salary, insurance advances, hourly rate, the VAT turnover tracker, and an overview of deadlines with penalties.
A hub for free tools for the self-employed (OSVČ) at taxorio.cz — income tax, flat-rate tax, VAT, the EU VAT ID check (in Czech), net salary, insurance advances, hourly rate, the 2026 overpayment, the VAT turnover tracker, and deadlines with penalties.
Compare the net income of an employee, a self-employed person in the standard regime, and one on flat-rate tax. The calculator accounts for expenses, insurance, credits, plus paid leave, sick pay and the pension impact.
Compare flat-rate tax with the standard tax regime. The calculator shows which option saves you more — for all 3 bands in 2026.
A complete overview of deadlines for the self-employed — income tax, VAT, insurance advances and the penalties for late compliance.