Tax deductions South African business owners still miss

One of the most powerful tools available to South African business owners is the ability to deduct legitimate business expenses from taxable income, reducing the amount of tax owed to SARS. Yet many entrepreneurs leave significant money on the table simply because they are unaware of which expenses qualify for deduction or fail to keep adequate records to support their claims.

SARS allows deductions for expenses that are incurred in the production of income and are not of a capital nature. This general principle applies broadly, but there are also specific provisions in the Income Tax Act that explicitly allow certain categories of deductions. Understanding both the general rule and the specific provisions is essential to maximising your tax efficiency.

Commonly Missed Business Deductions

• Home office expenses: if you use a dedicated portion of your home exclusively for business, you can deduct a proportion of rates, electricity, water, repairs, and bond interest
• Business vehicle costs: actual cost method or fixed cost allowance — a detailed logbook is essential
• Professional development and training costs related to your business
• Business insurance premiums (professional indemnity, liability insurance)
• Accounting, legal, and consulting fees directly related to earning income
• Computer equipment and software (may qualify for accelerated wear-and-tear)
• Business-related subscriptions, publications, and memberships
• Advertising, marketing, and website costs
• Bank charges on business accounts
• Bad debts that have been written off in the year of assessment

The Travel Logbook: Non-Negotiable

If you use a vehicle for business purposes, you must maintain a detailed travel logbook to substantiate any deduction or travel allowance claim. SARS is very specific about what a valid logbook must contain: the date of each trip, the odometer reading at the start and end of each trip, the business purpose of the trip, and the name of the client or business location visited.

Without a valid logbook, SARS will disallow your travel deduction entirely. The logbook must cover the full tax year, including private travel. Many clients use apps like Driversnote or MileIQ to automate their logbook capture — this is something we highly recommend.

Section 11(e) Wear and Tear

Business assets like computers, machinery, tools, and equipment are not immediately deductible in full — instead, they are written off over their useful life using SARS's wear-and-tear allowance under Section 11(e). However, certain assets qualify for accelerated write-offs: computers and related equipment are written off over 3 years, while most other equipment is written off over 5 years.

Small businesses with turnover below R20 million may qualify for the Section 12E small business corporation (SBC) tax rates and full accelerated depreciation on new assets — allowing you to write off qualifying new plant and equipment in the year of purchase. This can be a powerful tax planning tool for growing businesses.

Retirement Fund Contributions

South African taxpayers can deduct contributions to pension, provident, and retirement annuity funds up to 27.5% of the greater of taxable income or remuneration, capped at R350,000 per year. For business owners who do not receive a salary through a pension-linked employer, a retirement annuity (RA) is the primary vehicle for tax-efficient long-term savings.

Contributions made before the tax year-end (28 February) are deductible in that tax year. If you have cash flow available, topping up your RA before year-end is one of the most effective last-minute tax planning strategies available.