How different savings and investment options affect your tax, and how your money grows
Most people only think about tax once a year. July arrives. You log into SARS. You upload documents. You hope for a refund… Then life moves on, and tax disappears from your mind for another year. But tax isn’t just a once-a-year admin task.
It’s actually one of the biggest levers in your financial system.
For most South Africans, tax is the largest annual expense. Bigger than rent. Bigger than groceries. Bigger than almost anything else in their budget. And yet it’s the one expense most people never think about optimising.
The difference between someone who simply lets SARS do its thing and someone who understands their tax position can be tens of thousands of rands a year. That money doesn’t disappear. It either goes to SARS… or it stays in your pocket and compounds towards your future.
The Wealthbit Compare Your Options Tax Tool helps you see how different savings and investment choices affect both your tax and your long-term wealth.
How it works

The tool looks at four common investment vehicles side by side:
- Retirement Annuity (RA)
Your own retirement fund that sits outside your employer, and gives you a tax deduction on contributions. - Tax-Free Savings Account (TFSA)
An investment account where your growth and withdrawals are completely tax-free, but contributions are capped at R3,000 per month. - Employer AVC (Additional Voluntary Contributions)
Extra contributions to your existing employer pension or provident fund. - Discretionary investment
A standard investment account with no tax wrapper.
Simply enter a few details, like:
- How much you could realistically invest each month
- How many years you plan to invest for
- Your expected investment return
- How important access to your money is
The tool then does the maths for you and shows:
- The tax deduction you receive from retirement contributions
- The tax saving that deduction creates
- What the investment actually costs you after tax benefits
- The projected value of your investment over time
In other words, you can see how tax affects the outcome before you make a decision.
Why this matters
Most people choose investment products based on what they’ve heard, what their bank suggested, or what a friend recommended. But the best investment vehicle isn’t the same for everyone. It depends on things like:
- Your tax bracket
- Whether you still have retirement deduction room
- How long you plan to invest
- Whether you’ll need access to the money before retirement
For many employed South Africans, the smartest move is to start with the tax deduction. Retirement contributions can reduce your taxable income, which means SARS effectively helps fund part of your investment. Once those deductions are maximised, tax-free savings accounts often become the next best option because your investment growth compounds without tax drag. But the right answer depends on your situation. That’s exactly what this tool helps you see. Instead of guessing, you can see the maths.
What you’ll walk away with
After using the tool, you’ll have a clearer understanding of:
- What your tax bracket actually means for your money
- Which investment vehicles give you the best tax advantages
- How tax deductions reduce the real cost of investing
- How different options affect your long-term wealth
This tool is used as part of the Wealthbit Financial Freedom Programme™, where we help teams reduce financial stress and build smarter financial systems.
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