IIT above depends on salary amount while BT & IT roughly amounts to 10% of annual operational expenses.
Rough elaboration on BT & IT payable| Business Tax | = | Deemed Turnover x 5% |
| Total Expenses | = | Deemed Turnover x 85% |
| Deemed Turnover | = | Total Expenses / 85% |
| Business Tax | = | (Total Expenses / 85%) x 5% |
| Income Tax | = | Deemed Profit x 25% |
| Deemed Profit | = | Deemed Turnover x 10% |
| Income Tax | = | (Total Expenses / 85%) x 10% x 25% |
| Business Tax + Income Tax | = | (Total Expenses / 85%) x (5% + 10% x 25%) |
| Business Tax + Income Tax | = | (Total Expenses / 85%) x 7.5% |