5 TFSA mistakes that cost real money
The 40% penalty, the withdrawal trap, cash-only TFSAs — the most common ways South Africans waste the best tax break available to them.
5 min read
A tax-free savings account is the simplest, most generous tax break most South Africans will ever get. It's also easy to fumble. These five mistakes come up over and over.
1. Contributing over R36,000 across providers
The annual limit is per person, not per account. R20,000 at Bank A plus R20,000 at Broker B is R4,000 over — and SARS taxes the excess at a flat 40%. That's R1,600 gone, worse than any bracket you're in. Providers don't see each other's accounts, so nobody will warn you. Track the combined total yourself — that's exactly what the TFSA tracker is for.
2. Treating it like a transaction account
Withdrawals don't restore contribution room. Deposit R36,000, withdraw R10,000, and you can't put it back this year — and the R500,000 lifetime limit is permanently reduced too. Money that cycles in and out of a TFSA burns room that can never be recovered. Keep your emergency fund somewhere else.
3. Holding only cash inside it
The tax break applies to interest, dividends and capital growth. Park it in a low-interest savings TFSA for 30 years and you shelter almost nothing, because low returns mean little tax to avoid. The account is most powerful holding growth assets (like equity ETFs) for long periods — that's when the tax-free compounding becomes enormous. (What to hold is a personal choice — this is about how the account works.)
4. Waiting for the "right time" to start
Your R36,000 of annual room expires every 28/29 February — unused room doesn't roll over. At R36,000 a year, reaching the R500,000 lifetime cap already takes about 14 years. Every skipped year pushes the fully-tax-free decades further out. R500/month started now beats R3,000/month started "when things settle down".
5. Forgetting it exists at tax time
TFSA contributions appear on the tax certificate (IT3(s)) your provider sends SARS. If you've moved providers or hold accounts at several, check that your own records match what was submitted — an admin error that overstates contributions can trigger penalty letters you'll have to dispute.
The bottom line
The TFSA rewards one behaviour: steady contributions, left alone, for a long time. Automate a debit order, log it in the tracker, and let February's limit reset find you already done.