Law & business
Polish labour law calculators (sick pay, maternity, overtime, leave, notice, severance), statutory interest, car sale contract and PESEL, NIP, IBAN validators.
13 tools
Annual leave calculator (Poland)Find out how many days of paid holiday you are entitled to in Poland. The calculator adds your years of education to your service, adjusts leave for part-time work and a first job, and shows the result in hours.Car sale agreement (Poland)Buying or selling a used car in Poland? Fill in the seller, buyer and car details in English and get a standard Polish car sale agreement, with the price in words, the usual declarations and space for signatures, ready to print as a PDF.PESEL validatorEnter an 11-digit PESEL to check the check digit and the encoded date of birth. You also see the sex and the structure of the number, and you can validate a whole list at once.IBAN validatorPaste an IBAN to check its checksum and length for the country. You also get the print and electronic formats, ready to copy.Late payment interest calculator (Poland)Enter the amount, the due date and the payment date, and the calculator works out Polish statutory late payment, capital or commercial interest, split into the periods in which different rates applied.Maternity benefit calculator (Poland)Work out your monthly and total maternity benefit (zasiłek macierzyński) for maternity and parental leave in Poland. The calculator compares 81.5% for the whole period with 100% + 70% and shows gross and net amounts in PLN.Notice period calculator (Poland)Enter the date notice was served and when you started with your employer. The calculator gives the length of the notice period and your last day of work under the Polish Labour Code.Overtime pay calculator (Poland)Find out how much you earn for overtime in Poland. The calculator works out your hourly rate from the working hours in the chosen month of 2026 and adds the 50% or 100% supplement under Art. 151¹ of the Labour Code.Polish NIP validatorEnter a Polish NIP in any format (with dashes, spaces or the PL prefix) and the validator instantly checks the control digit and shows how it was calculated.REGON validatorEnter a 9- or 14-digit REGON and the validator checks the control digit. For a 14-digit local unit number it also checks the parent entity REGON hidden in the first nine digits.Severance pay calculator (Poland)Choose the type of severance, enter your salary and length of service with the employer. The calculator shows the gross amount in PLN, applies the 15 × minimum wage cap and explains whether income tax and ZUS apply.Sick pay calculator (Poland)Enter your average gross salary and the number of sick days. The calculator applies Polish rules for 2026 and shows the gross and net amount in PLN, split into employer sick pay and ZUS sickness benefit.Unused vacation pay calculator (Poland)Work out how much your employer must pay for annual leave you did not take when your contract ends. The calculator uses the leave coefficient for the year, your working time and the 3-month average of variable pay.
Tools based on Polish law
Calculators for employees and employers in Poland: sick pay (L4), maternity and parental benefit, annual leave and leave pay-out, overtime, notice periods, severance and statutory interest - plus validators for PESEL, NIP, REGON and IBAN numbers and a Polish car sale contract generator. Each tool explains the rule and the legal basis in English.
This is calculation help, not legal advice - for disputes, consult a lawyer or the National Labour Inspectorate (PIP).