For YA2014:

Walau bagaimanapun, mulai Tahun 2013 individu yang mempunyai pendapatan penggajian tahunan melebihi RM30,667 (selepas potongan KWSP) perlu mendaftar fail cukai pendapatan.

For YA2015:

The figure is not ready since Budget 2015 is not approved by the lower house and gazetted. It'll be higher with the implementation of GST.

Don't bother much, just register only.
Even you no need to pay tax, is still good to have account. Easier when applying loan.

Trust me, register and let them check now is better.
What you have now? Nothing. But after 5 years when you are buying a house that does not tally with your income, they will check you also. And if they found something fishy, they will start to dig back few years back.