Hi guys, just paid for my 2018 tax a month ago, newbie tax payer here.

my company just gave us the new 2019 TP1 form, and I know it's optional to submit or not. Last year, after deductions I get RM400+ tax relief back.

Do I need to submit the TP1 form?

I am very confused that "terkumpul" and "bulan semasa" means. If say my total medical insurance is maxed out at RM3000 per year but this month itself I only pay RM300, does that mean RM3000 at "terkumpul" and RM300 at "bulan semasa"?

Also, since it asks me to fill which month+year, so it will only affect this particular month (e.g. May 2019) and not the other months (Jan-Apr and June-Dec 2019)? If yes then what's the point to just fill in once per year :/

Please enlighten me sifus, I tried to google but can't really find any definitive answer.

Oh I see, that is clear. I don't have that much of tax relief as well, so i guess I won't bother then. Last year only got RM400+ tax return after PCB so that's alright for me.
Better than underpaid.