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Accounting in Poland, business venture [44]
My wife is chief Accountant in a public institution in Warsaw, so I already have some knowledge.
I really don't see why you find it necessary to go through five years of learning to do normal bookkeeping as a clerk.
Certificates are needed just for some of employees who make decisions and sign the documents, simple clerks who just insert data to system can be less educated. Still a lot of young people (mostly girls) choose Economic High Schools (Liceum Ekonomiczne), but in most cases can not get a job, so then start studying "to do something useful". That can be an explanation of higher percent of employees with a University degree in Poland.
I think you should read this document also: egospodarka.pl/pliki/CBRE-Poland-Office-Destinations-2012.pdf