South African fuel prices are normally adjusted on the first Wednesday of every month. The Department of Mineral and Petroleum Resources announces the adjustment shortly before, and the new prices take effect from the start of that Wednesday. For example, the July 2026 prices took effect on 1 July 2026. The size of the change is based on the daily under-recovery or over-recovery tracked over the previous month, which is driven by international product prices and the rand to US dollar exchange rate.
This guide is part of our South African Fuel Prices hub.
The monthly adjustment date
The regulated fuel price is normally changed once a month, on the first Wednesday, effective from the start of that day. The effective date can differ where the government announces a special or delayed adjustment, so check the official monthly notice rather than assuming the same weekday every time.
How the change is worked out
Through the month, the actual landed cost of fuel (the Basic Fuel Price) is compared daily with the regulated price. If the cost was on average higher than the price, there is an under-recovery and prices tend to rise; if the cost was lower, there is an over-recovery and prices tend to fall. See how South African fuel prices are calculated for the full price structure.
Where to check the new price
The DMPR publishes the official adjustment shortly before it takes effect. For the latest figures, see our current petrol and diesel prices guide, which we update after each announcement.
Taxes can change on other dates
Most fuel-price changes happen on the monthly adjustment date. However, taxes such as the general fuel levy are set by the National Treasury, usually in the annual Budget, and can change on a different date.
Frequently asked questions
When do fuel prices change in South Africa?
Fuel prices are normally adjusted on the first Wednesday of each month, effective from the start of that day. The date can differ if the government announces a special or delayed adjustment, so check the official monthly notice.
Who decides the South African fuel price?
The Department of Mineral and Petroleum Resources sets the regulated fuel prices each month, based on international product prices and the rand to US dollar exchange rate.
What are over-recovery and under-recovery?
During the month the actual landed cost of fuel is compared with the regulated price. If the cost is higher than the price (under-recovery), prices tend to rise at the next adjustment; if the cost is lower (over-recovery), prices tend to fall.
Can the fuel levy change during the year?
Yes. The general fuel levy is set by the National Treasury, usually in the annual Budget, and can change on a date other than the first Wednesday of the month.
Official sources
- Department of Mineral and Petroleum Resources (DMPR): fuel prices
- DMPR media statement: fuel prices effective 1 July 2026
- Fuels Industry Association of South Africa: fuel prices explained
Verification and sources
Verification note: This guide was independently fact-checked against official support documentation. Learn more about our Editorial Policy & Financial Review Board and how our corporate finance team ensures accuracy and safety for South African consumers.