• Skip to primary navigation
  • Skip to main content
singaporeolevelmaths

singaporeolevelmaths

Simple Tips for Better Maths Results!

  • Pass With Distinction A-Maths Programme
  • About
  • Books
    • O-Level Maths Ten Years Series Books
    • O-Level Pocket Summary
  • Videos
  • What They Say
  • Contact

everyday math

How 16 Years Old Calculates Income Tax

During this period of time, a Singapore website is ranked high in the search engines. Do you know which website? With the deadline for filing tax to be on 15 April, many people are flocking to IRAS to do their last minute e-file.

IRAS-Yahoo

For a 15 - 16 years old teenager, he gets transformed into a tax officer (though a really entry level one) where he learns the basic in calculating the income tax.

Let's use the following question as an example,

Income-Tax

Chargeable income = Gross annual income (inclusive other income streams like rental etc) minus reliefs

Mr Tan income is only from his work, so gross annual income

= 3250 x 12 = 39 000

Total reliefts

=3000 + 2000 + 2000 x 2 + 7800 + 600 + 2/100 x 39 000

=18 180

Chargeable Income = 39 000 - 18 180 = 20 820

We can refer to the table of tax rate to calculate the amount of income tax Mr Tan has to pay.

Income-Tax

We choose the one circled in red:

First 20 000: $0

Next 820 (20 820 - 20 000): 3.5/100 x 820 = $28.70

I hope you find this post useful. Leave me your comment on Income Tax. Have you learnt the concept? Do you know it's under the topic of 'Everyday Math'?

Filed Under: E-Maths Tagged With: everyday math, income tax

Copyright © 2023 · singaporeolevelmaths.com · Talk to us at 88290998