Bad? It’s a couple of decisions made by organisations or politicians who are ignorant of free software alternatives and open standards.
Certainly better than the US’s tax system, where you have to pay to file your taxes or at the least, have to spend a lot of your time working out complex tax submissions each year.
In the UK, your income tax is automatically paid by your employer when you earn it. Unless you’re self employed - or doing your own business accounts like OP, you don’t have to submit any tax information, ever.