South Africa were docked six World Test Championship points and fined 60 percent of their match fee on Monday for a slow over rate during their 191-run fourth Test defeat by England.
In a statement, the International Cricket Council (ICC) said it has punished South Africa after match referee Andy Pycroft found they were three overs short of the required rate during the Test, which gave England a 3-1 series win.
South Africa and England both opted for all-seam bowling attacks at the Wanderers Stadium in Johannesburg, with no spin bowlers to speed up their over rates.
South Africa are currently seventh in the nine-team table after one win and six losses. They gained 30 points for their win in the first Test against England but their total will now be reduced to 24 after becoming the first team in the tournament to have points deducted.
India lead the table with 360 points from seven wins in seven matches.
Meanwhile the series win over South Africa had given England a template for the next Ashes series, captain Joe Root said after another emphatic test win on Monday.
England’s team, with a mix of experience and promising youngsters, beat South Africa by 191 runs in the fourth test on Monday to complete a 3-1 series triumph.
After failing to prise back the Ashes last year, when they drew 2-2 in the five test series at home, Root said the win in South Africa provided a timely boost.
England are next in Sri Lanka in March and then host the West Indies and Pakistan later this year.