Johannesburg - By the end of the year, South Africa's arms deal will have cost taxpayers R70bn, according to a City Press report.
This exceeded what government had been telling the public.
New information obtained was being published in a forthcoming book by former ANC MP and arms deal activist Andrew Feinstein
showed that the country paid more than R70bn to buy warships, fighter jets and other arms equipment.
Lead researcher on the book, Paul Holden, told the newspaper that the figure was calculated by using the defence department's budget vote of 2008, which provided a breakdown of costs to date, as well as projected future costs of the deal until 2011.
"At the time, the stated cost to 2008 was R43bn, with a further R4.3bn to be sent by 2011.
"Unfortunately, the R4.3bn is not set in stone due to exchange rate fluctuations," Holden said.
Taking this into consideration, the cost was adjusted to R47.8bn by this year.
Holden said this was only the "stated cost" and did not include the series of "hidden costs associated with the deal...in particular, this figure did not include the financing costs.
In January Defence Minister Lindiwe Sisulu
told parliament that the deal would cost a total of R47.2bn but this excluded the financing costs.
Holden said the total amount could still increase if the value of the maintenance contracts for the jets, ships, submarines and helicopters were calculated.
"Taking this into account, we can see why the defence budget has been creaking so much recently," he said.
Sisulu's department was not immediately available for comment.