"In slovenia, this is done for "normal people" (people who are employed by companies (LLC, etc.), because companies have to fill out paycheck reports to the government). If you win something (eg lottery), the prize-giver has to report that too. You have to only fill out the form if you have any younger kids (tax benefit, can be done online on a governments website), and you're done. Then you just get the yearly report and a bill in the mail. If you're an eg. independent contractor, you have to fill out a full report (income, expenses, income tax already prepaid, benefits paid, etc.), but you also do it on a governments website and sign it using a digital certificate (that is free for citizens). No 3rd party software, no paying anything (unless you have an accountant do that for you, but it's relatively simple to do it by yourself), and the most time-consuming task is calculating all the yearly earnings and expenses." #Slovenia #pub