The headline is a broad measure
Inflation describes a rise in the general level of prices. South Africa’s consumer price index tracks a representative household basket. Your spending mix can differ: someone who spends a large share on transport will experience a different combination of price changes from someone who works at home.
A lower inflation rate does not automatically mean prices have returned to an earlier level. Prices can still be increasing, just more slowly. For your budget, compare the rand amounts on your bills and shopping receipts rather than treating a change in the headline percentage as money already available to spend.
Measure the change in your own costs
Choose a consistent set of essentials and compare like with like. Keep quantities and package sizes comparable, and separate a higher unit price from buying more. If a regular basket moves from R2 000 to R2 100, that is R100 extra, or a 5% increase for that basket. It is an illustration, not a reported national inflation figure.
Do the same for rent, transport, insurance and other recurring costs. Write down the effective date of each increase. Adding the rand changes across categories gives you a clearer view of the extra income or spending adjustment needed than applying one percentage to every expense.
Compare income and costs on the same basis
A salary increase and an expense increase can use different bases. A 5% change to a gross salary is not necessarily a 5% change to the money reaching your bank account. Recalculate take-home pay using the appropriate salary and tax-year assumptions, then compare that cash difference with the change in spending.
Check timing too. A rent increase that begins next month affects a different number of payments this year from one that started in January. Record the monthly amount you need now and the cash you will need over the coming year as separate views of the same plan.
Keep long-term projections flexible
In a purely illustrative scenario, R10 000 worth of goods today would cost R10 500 after one year if their prices rose by 5%. Repeating that assumption compounds the change. This does not predict what your actual shopping basket will cost, or establish a suitable investment return.
The savings calculator can show a projected balance in today’s-money terms using an inflation assumption you choose. Try more than one scenario and revisit the assumptions. For immediate decisions, your own current bills and the terms of your savings product are more useful than a smooth long-term forecast alone.
Sources & further reading
Educational information, not personalised financial advice. This guide was prepared for this release. Read our editorial and corrections policy.