Consumer Mathematics: Taxation · Form 5
Consumer Mathematics: Taxation: Paper 2 Answering Guide
How Consumer Mathematics: Taxation appears in Mathematics Paper 2 (Subjective), and how to lay out your working so you earn every method mark.
How it is examined
A Paper 2 question gives an income, some deductions and a set of rates, and asks for the tax payable. The arithmetic is straightforward; marks are lost by using a wrong rate, forgetting a deduction, or importing a real tax figure the question did not give.
Showing your working
Mathematics Paper 2 (Subjective) is worth 100 marks and gives marks for the steps, not only the answer. Write each line clearly: state the formula or rule, substitute the numbers, then simplify.
If the question carries units, carry them through to the final line.
A worked taxation question, laid out for marks
Puan Hana earns a monthly salary of RM5,500 and receives an annual bonus of RM6,000. In one year she claims tax reliefs of RM9,000 (personal), RM7,920 (EPF), RM3,000 (medical insurance) and RM2,080 (books and lifestyle).
The tax table charges 0% on the first RM20,000 of chargeable income, 3% on the next RM15,000, 6% on the next RM15,000, and 11% on any amount above RM50,000. A tax rebate of RM400 applies.
Calculate her tax payable.
- State the rule: Gross annual income = 12 × monthly salary + bonus.
- Substitute: Gross = 12 × 5,500 + 6,000 = 66,000 + 6,000 = RM72,000.
- Total reliefs = 9,000 + 7,920 + 3,000 + 2,080 = RM22,000.
- Chargeable income = Gross − reliefs = 72,000 − 22,000 = RM50,000.
- Apply the table slice by slice: first RM20,000 → 0% = RM0; next RM15,000 → 3% × 15,000 = RM450; next RM15,000 → 6% × 15,000 = RM900. Chargeable income stops at RM50,000, so nothing falls in the 11% band.
- Tax charged = 0 + 450 + 900 = RM1,350.
- Tax payable = tax charged − rebate = 1,350 − 400 = RM950.
The same layout on a variant
The same four-line skeleton adapts to common twists. If the salary is given monthly, add a first line annualising it (×12) before reliefs.
If a rebate applies only when chargeable income does not exceed a stated limit, check that condition before subtracting it. If the question asks for tax after a rebate and an instalment already paid, subtract the instalment on a final labelled line.
The order, income, reliefs, chargeable, tiered tax, rebate, never changes.
Source:SPM: Format Pentaksiran mulai 2021, Matematik (1449)
Frequently asked questions
Do I need to show every tier even if a band comes to RM0?
Show it if it earns a mark or makes the method clear, but a RM0 band can be stated in one line, such as 'first RM20,000 → 0%'. What matters is that every band with tax is shown with its own product, so the marker sees you applied the tiers rather than guessing.
Where exactly do I subtract the rebate in the working?
Right at the very end, after you have added every tier to get the tax charged. Write the tax charged on its own line, then a separate line subtracting the rebate: tax charged − rebate = tax payable.
Subtracting it earlier, from income or a single tier, changes the answer.
If my chargeable income lands exactly on a band boundary, which band is it in?
By convention the boundary value belongs to the band ending there, so an income of exactly RM35,000 is fully covered by the bands up to RM35,000 with nothing in the next band. Follow the wording 'on the first…', 'on the next…'; a boundary figure leaves zero in the higher band.