Taxpayers who receive commission as part of their income, are allowed to deduct business expenses on their tax returns. However, you are only allowed to claim these expenses if your commission income exceeds 50% of your total annual income. Home office expenses Home office expenses may be claimed for a home office/study. But the area used must be specifically used to trade, and not for anything else. The expenses that may be claimed includes the rent, cost of the bond, interest on the bond. The cost is then apportioned to the percentage of the office in relation to the total area of the home. Thus, if your home is 120sq/m…