Articles on loans, taxes, contributions and personal finance. Compare sole trader taxation forms, calculate loan instalments, learn about health insurance, VAT and flat-rate tax rules. Practical explanations for individuals and entrepreneurs — with calculators for every topic.
Fixed asset depreciation calculator
Straight-line fixed-asset depreciation
Tax-deductible costs (KUP) calculator
Tax-deductible costs (KUP)
PCC calculator — civil transaction tax
PCC — contracts, loans, sales
Linear tax 19% calculator
Linear 19% tax for sole proprietors
Read guides related to calculators in the areas of law, finance, employment and real estate.
Answers to the most common questions about calculators in the topic Taxes and contributions.
Depends on income and costs. General scale — good for low incomes (12% up to PLN 120,000). Flat tax (19%) — better for high incomes with significant costs. Lump-sum — attractive with low costs. The calculator compares all options.
Depends on tax form: general rules — 9% of income; flat tax — 4.9% of income (min. PLN 314.10); lump-sum — a fixed amount based on one of 3 revenue tiers. The calculator shows the exact figure.
Output VAT minus input VAT (from cost invoices) = VAT payable. The VAT calculator computes the net, gross or tax amount at the selected rate (23%, 8%, 5% or 0%).
Lump-sum is advantageous when business costs are low (below 20-30% of revenue). The higher the costs, the more flat tax or general scale makes sense. The calculator compares both options.
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