Provisional Tax: Who Pays It and How

Most salaried employees never think about provisional tax, because PAYE handles their tax automatically month by month. But if you earn income that isn't taxed at source — freelance work, rental income, significant investment income, or business profits — provisional tax is how SARS collects tax on it, and getting it wrong leads to penalties.

Provisional tax isn't a separate type of tax. It's a method of paying your income tax in advance, in instalments, rather than in one lump at the end of the year. The idea is to spread the burden and keep SARS's cash flow steady, the same way PAYE does for employees — just self-managed.

If you're a provisional taxpayer, you make two main payments a year: one at the end of August (halfway through the tax year), estimating half your expected annual tax, and one at the end of February (the tax year end), topping up to your full estimated liability. There's an optional third "top-up" payment later to mop up any shortfall before interest builds.

Who has to do this? Broadly, anyone earning meaningful income not already subject to PAYE. A salaried employee with a small amount of interest income usually isn't caught (there are thresholds), but a freelancer, a landlord, or someone running a business alongside a job typically is. The classic trap is the newly self-employed person who spends everything that lands in their account, then faces a large tax bill with nothing set aside — which is why we always suggest parking a portion of untaxed income aside as you earn it.

Because estimating your own income is involved and the penalties for under-estimating are real, provisional tax is one area where getting a registered tax practitioner involved often pays for itself.

This is general information, not tax advice. To estimate income tax on your earnings, use the calculator.