Mr. Stephen Bakoma was appointed on a salary scale of GH13,200 per annum with effect from 1st August 2020.He contributes 5.5% of his basic salary to the Social Security scheme.As part of his conditions of service he was provided with a furnished accommodation and a vehicle with fuel. Other entitlements to Mr.Bakoma are as follows:

1. Responsibility allowance GH250 per month

2. Utilities GH500 per month

3. Entertainment allowance GH100 per month

He has 3 wives and nine children. Five of his children are public second cycle institutions and the rest are in the universities at various levels.

REQUIRED.

Calculate his tax liability for the 2020 year of assessment