Mr Steve Mills was employed as the Chief Executive Officer of Mpeasem Company Limited, on a monthly Salary of GH¢ 40,000.00, subject to 20% upward review after every two years. His appointment took effect from January 1, 2015. Mr Steve Mills is provided a soft furnished accommodation and a vehicle and a driver, which is fuelled by the company. He is also entitled to the following other allowances each month:
i. Responsibility: 2,000.00
ii. Accountable Entertainment: 500.00
iii. House / Garden Boy: 15% (Basic Salary)
iv. Clothing (Paid January 1 each year): 20% (Basic Salary)
v. Professional Allowance: 10% (Basic Salary)

During the year 2018, he received a total dividend of GH¢ 6,000.00 net of taxes from two companies where he has investments. The total number of ordinary shares respectively in Ebeyeyie Co. Ltd and Chinderi Oil Mills (Ghana) Ltd are 15,000 and 30,000. Mr Steve Mills contributes 5.5% of his basic Salary to SSNIT and 10% to the third tier Pension Fund to which his employer also contributes 5%. He is married and has three children. The eldest son is attending KNUST, and the rest are in Government approved Senior High Schools in Accra. His wife is a housewife and does not provide much for the up keep of the children. He provides for his 70 year old father. He has applied for and granted all reliefs. Mr Steve Mills represents the company at all state functions and programmes and is therefore expected to be decently dressed at all times. The industry standard also requires all employees to be decently dressed.

Annual Individual Tax Rates (Effective 1st January 2018)

Required:
a. Compute the tax liability for Mr Steve Mills for 2018 year of Assessment.

b. Provide justification for the basis of your treatment of the transactions, where necessary.