The SA National Roads Agency Limited (Sanral) has received an unqualified audit report from the Auditor General, it said on Wednesday.

"The unqualified report and Sanral's unblemished financial integrity are a result of principled financial management and budgetary resourcefulness," CFO Inge Mulder said in a statement.

"While every accolade raises the bar, we will not rest on our laurels but will always work hard to maintain Sanral's position as a well-managed and accountable company."

The report was for the financial year that ended on March 31.

Sanral said it was its ninth consecutive unqualified report and that this demonstrated its commitment.

"Sanral's board and staff recognise that it is vital for the organisation to function as a credible custodian of tax payers' money and investor funds," said Mulder.

"Our financial control and records are therefore reviewed by internal auditors -- independent auditors from time to time -- and our financial statements are audited by the Auditor General annually."

Mulder added that the Auditor General drew emphasis to the tolls income from the Gauteng Freeway Improvement Project and its significance to Sanral's ability to service the highways and fund its obligations.

The inter-ministerial committee on the Gauteng freeway improvement project would announce on Friday how the e-tolling would be implemented.