Inflation is measured in South Africa by Statistics South Africa through the Consumer Price Index (CPI), published monthly. It tracks how the price of a representative basket of goods and services changes over time. When you hear “inflation is 4,3%”, it means that basket costs about 4,3% more than it did a year earlier.

Inflation figures change every month. For the current number, check the Stats SA CPI release directly — the link is in the sources below. This article is about what the number means for you, which doesn't change month to month.

The part that matters if you have debt

Your debt repayments are usually fixed amounts. Your living costs are not. When prices rise and your income doesn't rise by the same amount, the gap comes out of the same place: whatever was left over each month.

That's why people often describe debt becoming “unmanageable” without having borrowed anything new. Nothing about the debt changed — the space around it shrank.

A simple illustration

Suppose you earn R18 000 after tax, your essential living costs are R11 000, and your debt repayments are R5 000. You have R2 000 of breathing room. If living costs rise by 6% over a year to roughly R11 660, and your income stays flat, that R2 000 becomes about R1 340 — a third less — with no change to your debt at all.

These are illustrative figures to show the mechanism, not a prediction about your situation.

Why averages can mislead

Headline inflation is an average across a broad basket. Your personal experience depends on what you actually spend money on. If most of your income goes to food, transport and electricity, and those categories rise faster than the average, your real cost increase can be higher than the headline figure suggests.

What you can actually do

  • Rebuild your budget from recent bank statements rather than memory — costs drift upward quietly.
  • Look at your total debt repayments as a share of take-home pay, and watch that share over time.
  • Deal with an unaffordable repayment structure early, while more options are still open.
  • Be wary of covering a shortfall with new short-term credit, which raises next month's fixed commitments.

When it stops being a budgeting problem

If essential living costs plus debt repayments consistently exceed your income, tightening the budget further has limits. That's the point at which it's worth having your actual numbers assessed rather than trying to absorb the gap indefinitely.

Frequently asked

Where does South Africa's official inflation figure come from?

Statistics South Africa publishes the Consumer Price Index (CPI) monthly. It's the official measure of consumer inflation.

Does inflation increase what I owe?

Not directly. Your repayments are typically fixed amounts. Inflation reduces what's left of your income after living costs, which is what makes existing repayments harder to meet.

Is this article's example based on my situation?

No. The figures are illustrative, to show how the mechanism works. Use the budget calculator for a picture based on your own numbers.