Articles on loans, taxes, ZUS contributions and personal finance for individuals and sole traders. Compare taxation forms, calculate loan instalments and learn about health insurance rules — practical explanations with calculators for every topic.
Revenue register on lump‑sum — how to keep it
The revenue register is the foundation of lump‑sum. What it must include, how to split rates and how to avoid mistakes.
Inflation and wages — impact on pay
How inflation affects wages, minimum pay and unemployment.
Inflation — what it is and how it works
What inflation is, how it is measured and why it affects prices.
How to calculate lump‑sum tax — step by step
How to calculate lump‑sum tax on recorded revenue: rate, revenue, advances and annual settlement. Simple steps and common errors.
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Calculators in this category →Browse legal specializations related to the most common user cases.
Law firms directory →Compare accounting firms and services useful after calculating taxes, contributions, business costs and salaries.
Answers to the most common questions about using legal and financial guides — Finance.
Practical explanations covering loans, leasing, taxes, ZUS contributions, interest and taxation forms for sole traders. Each guide includes step descriptions, costs and calculators.
Compare: progressive scale (12%/32%), flat tax (19%) and lump-sum. The taxation comparison calculator helps pick the most favourable option for your income and costs.
Interest on a rental mortgage can be deducted from income. For a residential purchase — no deduction applies. The guide describes the rules in detail.
In the prawopro.pl accounting directory you will find specialists in taxes, payroll, ZUS and sole trader support — by location and specialisation.
Tax‑deductible costs (KUP) — rules and practice
What KUP are, when fixed, 20% or 50% costs apply, and how to avoid errors in tax settlement.
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