The Personal Income Tax Act was amended in June 2011 to address some of the issues with the previous act especially as it affects deductions and reliefs. The first thing you want to take out is deductions and then take out the allowances from your salary before you get to the taxes you will pay.
- Deductions
This is called Consolidated relief allowance
You deduct the Higher of N200,000 or 1% of gross income plus 20% of gross income. Note that Gross Income or emoluments means wages salaries allowances (including benefits in kind), gratuities, superannuation, and any other income derived solely by reason of employment - Allowances – Child allowance
You deduct, N2,500 for each child up to a maximum of four children, provided that none is above 16 yrs or married. However, a relief can be granted for a child over 16 years if the child is in a recognized school, under artisanship or learning a trade. - Reimbursements Expenses: You also deduct reimbursement expenses incurred in the performance of employment duties from which it is not intended that the employee should make any gain or profit. You may have to provide proof of this like receipts or other evidence of payments.
- Interest and dividend
Interest income earned from debt instruments including treasury bills and corporate bonds now fully exempt while withholding tax at 10% is the final tax on dividend - Interest on Mortgage
Interest expenses paid on mortgage for a residential property is exempted from tax. However, it must be a residential property and must not be used for commercial purposes - Pension Fund
Pension contribution from employee is also tax exempt and must be deducted before arriving at taxable income. Therefore, the portion of the employee’s salary that is deducted from salary as pension will also be deducted before arriving at taxable income. - National Housing Fund
Employee contribution is also deducted from before arriving at taxable income. The amount contributed by the employee for NHF will also be deducted for tax purposes
After you deduct all these exemptions and allowances from your salary, you arrive at the Taxable Income which you then apply the relevant tax tables to.