Science · 6 min
The volume of a cylinder is calculated as pi times radius squared times height. Learn the formulas for volume and surface area, and how to convert the result to liters.
· Redakcja Liczbnik
Loans · 6 min
Learn how mortgage refinancing works in Poland, when it pays off, what costs to expect and how to calculate your savings before switching to a new lender.
· Redakcja Liczbnik
Taxes · 6 min
Understand Estonian CIT in Poland: who qualifies, how the deferred corporate tax works, the effective rates and a worked example showing the real savings.
· Redakcja Liczbnik
Salaries · 6 min
How maternity benefit works for self-employed and B2B workers in Poland: eligibility, contribution rules, how the amount is calculated and a worked example.
· Redakcja Liczbnik
Business · 7 min
A complete guide for foreigners on how to register a business in Poland in 2026. We cover legal forms, registration costs, ZUS contributions and the tax system for new entrepreneurs.
· Liczbnik Editorial
Salaries · 6 min
How much of your gross salary will you actually take home in Poland? A complete guide for expats on income tax, ZUS contributions and net pay calculation in 2026.
· Liczbnik Editorial
Finance · 6 min
NFZ vs private health insurance in Poland — what does NFZ cover, how to register, and when private insurance is worth paying for. Complete guide for 2026.
· Liczbnik Editorial
Finance · 5 min
How to exchange Polish zloty to euro in 2026? Compare rates, find the best exchange options and avoid hidden fees when converting PLN to EUR.
· Liczbnik Editorial
Finance · 6 min
Practical tips on how to save money in Poland in 2026 — from grocery shopping and utilities to transport, banking, and building an emergency fund on a Polish salary.
· Liczbnik Editorial
Investments · 6 min
A guide to investment options available to expats living in Poland in 2026 — from Polish brokerage accounts and IKE to ETFs, treasury bonds, and real estate.
· Liczbnik Editorial
Salaries · 7 min
Key facts about Polish employment law 2026: notice periods, annual leave, sick pay, overtime and minimum wage. Practical guide for expats.
· Liczbnik Editorial
Real estate · 7 min
Complete guide to buying an apartment or house in Poland as a foreigner 2026: legal restrictions, costs, taxes and financing.
· Liczbnik Editorial