Having lived in a bunch of countries over the past decade, it's only when I moved back home to NL that I fully appreciated how easy things are.
Firstly, digital filing is the norm and for "simple" returns, just works.
Secondly, if you ever have a question, you can just call the tax authority on their free phone number, and pretty much ask them anything related to individual or business tax returns.
I once had to call the IRS for something and it also “worked”. The wait time was pretty reasonable (5 min or so), the person I spoke with was polite, knowledgeable, and actually resolved the problem on the first try.
It was heads and shoulders above most interactions I’ve had with with ISPs, big banks, and the like, where you get transferred around between departments that don’t seem particularly interested in helping you out....