Two-Pot System: What Withdrawing Now Actually Costs You Versus Leaving It Alone

Two pots, two very different jobs

Since September 2024, every retirement contribution South Africans make gets split. A third goes into a savings pot you can access once a year before retirement. Two thirds go into a retirement pot that stays locked until you actually retire. There is also a vested pot sitting alongside both of these, made up of whatever you had saved before the system changed, and it plays by the old rules.

The savings pot exists for a reason: give people a legal way to get at some retirement money in a genuine emergency, instead of resigning from a job just to cash out a pension. The retirement pot exists for the opposite reason, to make sure that even if the savings pot gets drained every year, there is still something growing untouched for the day you actually stop working.

That split creates an annual decision point most people didn't have before. Every year, the money sitting in your savings pot is yours to withdraw if you want it, taxed at your marginal income tax rate. Or you can leave it exactly where it is. Neither choice is dressed up as the correct one here. Both have consequences that compound over time, and those consequences look very different depending on how far out your retirement actually is.

Eventuality one: you withdraw from the savings pot

Say you take a withdrawal from your savings pot this year. The money lands in your bank account, minus tax, because a two-pot withdrawal before retirement is added to your taxable income for that year and taxed at your marginal rate, not at the more favourable retirement lump sum tables that apply at actual retirement. If you're in a higher tax bracket, a large withdrawal can also push part of your other income into a higher bracket for that tax year.

The immediate effect is obvious: you have cash now. Maybe it clears a high-interest debt, covers an emergency repair, or gets you through a genuinely hard month. That's the entire point of the savings pot existing, and for a lot of people in a real cash crunch, it does exactly the job it was designed for.

The effect that's less obvious is what happens to the number on your statement in twenty years. That withdrawn amount is gone from the pot. It was never going to sit there earning nothing either, retirement savings are typically invested in a mix of equities, bonds, and property, and over long periods that mix tends to grow well above inflation. Every rand you pull out today is a rand that stops compounding inside the fund from this point forward. The retirement pot and vested pot keep growing regardless, but the savings pot's contribution to your eventual balance shrinks by however much you've taken and however long ago you took it.

Eventuality two: you leave it in

The other path is doing nothing. You don't touch the savings pot. It keeps receiving its third of your ongoing contributions, and the whole balance (whatever was seeded in at the start, plus every contribution since, plus every year of growth) keeps compounding alongside the retirement and vested pots.

The upside here is straightforward: more money working for longer produces a bigger number at the end, and that gap widens the earlier in your working life the decision is made. A withdrawal at age 35 has decades left to have compounded before retirement. The same withdrawal at 60 barely had time to grow at all, so leaving it in at 35 costs you far more in lost future growth than leaving it in at 60 would have saved.

The tradeoff is that the money genuinely isn't there if you need it. If an emergency shows up and the savings pot has been left untouched and grown, that access still exists, you just haven't used it yet. Leaving it in isn't giving up the option, it's postponing the decision on whether to use it. But if something forces your hand later and you have no other buffer, not having drawn on it early means you may end up needing to draw a larger amount later, at whatever your marginal rate is at that point.

Worked example: same contributions, one withdrawal, twenty years apart

Take two people, both 35, both earning the same salary, both contributing R4,500 a month total into their retirement fund, split under two-pot rules, and both invested at an assumed 8% annual growth rate over 25 years to retirement at 60.

Person A never touches the savings pot. By 60, running the numbers through the Two-Pot Retirement System Calculator, their savings pot alone (ignoring the retirement and vested pots entirely, just isolating this one decision) grows to somewhere in the region of R950,000, from contributions of roughly R450,000 over the 25 years. The remaining amount, close to half a million rand, is pure investment growth.

Person B withdraws R80,000 from their savings pot once, at age 40, twenty years before retirement. That R80,000 doesn't just disappear from the final total, it disappears along with every year of growth it would have earned between 40 and 60. At 8% over 20 years, R80,000 left untouched would have grown to roughly R373,000. So the true cost of that single withdrawal isn't R80,000, it's closer to R373,000 in lost final balance, even though only R80,000 ever left the account.

Neither of these numbers tells you which person made the better decision. If Person B's R80,000 went toward clearing a 24% interest personal loan, or covered a medical emergency with no other funding source, that trade may have been the right one for their specific situation regardless of the twenty-year cost. The point of running the numbers isn't to produce a verdict. It's to know the actual size of the tradeoff before you make it, rather than discovering it decades later as a smaller balance with no explanation attached.

What the tax difference actually looks like

A two-pot savings withdrawal is taxed as ordinary income in the year you take it, at whatever your marginal rate is for that year. If you're a middle-income earner, that could mean a meaningful chunk, easily a quarter or more, disappearing in tax before the money even reaches your account. SARS also nets the withdrawal against any outstanding tax debt before paying out the balance, so a withdrawal doesn't always produce the full amount you expected.

Retirement lump sums taken at actual retirement are taxed differently, using a separate, more generous set of tax tables with a tax-free portion at the bottom. That's a structural reason the system nudges you toward leaving money in until retirement rather than withdrawing along the way: the tax treatment is simply less favourable for early access, on top of the lost growth.

This doesn't mean withdrawing is always a poor tax decision in isolation. Someone in a lower tax bracket withdrawing a modest amount pays a smaller percentage than someone in a higher bracket withdrawing a large one. The point is that the tax cost is real, it's calculable in advance, and it should be weighed alongside the growth you're giving up, not treated as an afterthought once the withdrawal is already in your account.

Questions worth asking before you decide either way

Is there a cheaper source of cash available first? If the alternative to withdrawing is a personal loan or credit card at 20%+ interest, the maths often favours the withdrawal despite the tax and lost growth, because the interest cost of borrowing elsewhere can exceed both combined. If the alternative is simply not going on a holiday this year, the comparison looks very different.

How many years are left until retirement? A withdrawal at 28 with 35 years of compounding ahead of it costs vastly more in lost future value than the same withdrawal at 58 with two years left. Run your own age and time horizon through the calculator rather than relying on someone else's example, because the gap between a young withdrawal and an old one is large enough to change the entire decision.

What does the marginal tax hit look like this specific year? If a large withdrawal would push you into a materially higher bracket for the year, splitting it across two tax years (where allowed) or reconsidering the amount can reduce the tax cost meaningfully.

Is there a pattern forming? A single withdrawal in a genuine emergency is a different situation to withdrawing every year the pot has a balance. The second pattern quietly erodes the entire purpose of the retirement pot's protection, since the savings pot was never meant to function as a second current account.

Running your own numbers

There's no single right answer here, and this article isn't going to manufacture one. What withdrawing costs you depends on your age, your contribution rate, your assumed growth rate, and how much you take out. What leaving it in costs you (in flexibility, in not having that cushion available) depends entirely on your own financial situation outside the fund.

The Two-Pot Retirement System Calculator lets you model both scenarios side by side: run your numbers with no withdrawals to see your full growth trajectory, then add a withdrawal at whatever age and amount you're actually considering, and watch what changes in your final balance. Seeing the specific rand figure for your situation, rather than a generic example, is the difference between a guess and an informed decision either way.