I'll start — I once claimed home loan interest relief in the wrong year and got hit with a RM6,000 fine. Another time I assumed hyperthyroid counted as "incurable disease" relief (obviously.... young & stupid 😅). LHDN called me and said nope, fined RM2,000 lagi.
Genuinely asking because I'm building an app to make tax filing easier (like receipts tracking) - still in early stages.
So I want to hear from you - what's your horror story? Doesn't have to be a fine. Could be a relief you found out too late, something confusing you Google every single year, or a close shave with an audit.
Please share your story!