I really doubt that LHDN wanna gonna chase for RM500 deduction, as effectively it will be say at 20%, RM 100 extra tax...

But again you'll newer know, based on my last briefing with LHDN ist like the normal medical screening that company send, which, yes normally cost more than RM1000.

Its not actually a 'rebate' but a 'deduction'.

Rebate is after computing the tax payable, deduction reduce the chargable income.