Malaysian tax clearance? I never do such thing when I move there.

Btw, congrats!

Isn't this only applicable to foreigners leaving Malaysia? Well, I don't know if TS is a foreigner or not... so you got a point there.

Well, I'm a Malaysian now working in SG. I did not do a tax clearance nor close the tax account but I still submit my income tax return yearly (with zero income la).

My uncle left Malaysia, did not close his income tax account nor did he continue his filing. Years later when he return to KL for a visit, he was stopped by Kastam saying his passport is blacklisted. Apparently, LHDN assumes he is still working in Malaysia, and slap him with a RM20K tax bill. Pay or else he is not leaving Malaysia. Appeal will take months. He suck thumb and pay.

Then, if you ever decided to come back and work in MY (very unlikely), you will need to open another file with LHDN.

Nope. I think they just assume I'm jobless.

You only need to file for the first year. Usually company will assign a tax agent to assist with the filing for first year. After that, you just need to update your record. Company will handle your income submission. Just sit back and wait for the bill - can even apply for Giro/interest-free 10 months payment.