Anyway, in addition to being timely, I hope you fill your tax forms correctly. Taxpayers are required to keep their records for seven long years and may subject to a tax audit, or worse, tax investigation. So, do ensure that all your tax documents are kept safely.
I know it's a bit late but I just want to share with you one strategy to reduce your taxes. Maybe you can apply this for this year's tax. Its based on my experience as a taxpayer and common sense.
As a taxpayer, we should aim to have a low chargeable income (item E1 in the BE2007 form). You can't lie or cheat on the amount of income because that's illegal and I don't think you'd want to end up in jail. So, the next best thing is to maximise, where possible, all the reliefs (items D1-D13) and rebates (items E4-E7) available to you.
Two things I usually do are buy books and magazines (item D8 - maximum relief RM1,000) and get an annual medical check-up (item D7 - maximum relief RM500). Besides the amount limits, you should also know the conditions for the reliefs and rebates. For further reference, buy a Malaysian tax guidebook and don't forget to claim relief for it.