Sport · 7 min
VO2max Calculator — How to Measure Your Aerobic Fitness
What is VO2max and how to measure it without a laboratory? Learn the Cooper test, submaximal tests and how to interpret your aerobic fitness results.
· Liczbnik Editorial
Blog — page 20
Salaries · 8 min
Salary Calculator Poland 2026 — Gross to Net, Tax & ZUS Explained
Understand your Polish salary in 2026: ZUS contributions, health insurance, PIT tax rates, and a step-by-step gross-to-net example for 6,000 PLN.
· Redakcja Liczbnik
Salaries · 6 min
Minimum Wage in Poland 2026 — Current Rates and Net Pay
Poland's minimum wage in 2026: 4,806 PLN gross per month and 31.40 PLN per hour from 1 January. See net amounts, hourly rates, and how Poland compares with EU peers.
· Redakcja Liczbnik
Taxes · 7 min
VAT Rates in Poland 2026 — Standard, Reduced & Zero Rate Guide
Complete guide to Polish VAT in 2026: 23% standard, 8% and 5% reduced rates, 0% exports, registration threshold, JPK_V7 reporting and reverse charge.
· Redakcja Liczbnik
Salaries · 7 min
B2B vs Employment Contract in Poland 2026 — Full Tax Comparison
Comparing B2B and employment contracts in Poland 2026: taxes, ZUS contributions, net income, and which option saves you more money.
· Liczbnik Editorial
Salaries · 6 min
ZUS Contributions in Poland 2026 — Complete Guide for Employers and Employees
Full breakdown of ZUS social insurance contributions in Poland 2026: rates, bases, employer and employee shares, health insurance, and payment deadlines.
· Liczbnik Editorial
Real estate · 7 min
Property Buying Costs in Poland 2026 — PCC, Notary, Agent Fees
Complete breakdown of property purchase costs in Poland 2026: PCC tax, notary fees, agent commission, land register fees, and total budget needed.
· Liczbnik Editorial
Taxes · 7 min
Polish Social Security (ZUS) — Complete Guide for 2026
Everything expats need to know about ZUS in Poland 2026: who must pay, contribution types, rates for employees vs self-employed, and A-1 certificate rules.
· Redakcja Liczbnik
Health · 6 min
How to Calculate BMI — Formula, Ranges and What It Means
Learn the BMI formula, understand underweight to obese ranges, see a worked example, and discover the limitations of BMI as a health metric in 2026.
· Redakcja Liczbnik
Taxes · 7 min
VAT in Poland 2026 — Rates, Registration and How It Works
A practical guide to Polish VAT (PTU) in 2026: standard and reduced rates, registration thresholds, VAT returns, split payment rules and intra-EU transactions.
· Redakcja Liczbnik
Savings · 6 min
Saving for Retirement in Poland — PPK, IKE, IKZE and ZUS Explained
Poland's retirement system: ZUS public pension, PPK workplace savings, IKE and IKZE private accounts. How much will you actually get at retirement?
· Liczbnik Editorial
Loans · 6 min
Getting a Mortgage in Poland 2026 — Rates, Requirements and Tips
Polish mortgage guide: loan-to-value 80-90%, interest rate ~7%, fixed vs variable (WIBOR), creditworthiness test. Step-by-step application guide.
· Liczbnik Editorial