Mtambo CAPE TOWN (Reuters) - South Africa's national budget was postponed on Wednesday because the two biggest parties in the ruling coalition disagreed over raising value-added tax, an unprecedented delay that caused the rand and government bonds to fall.

South Africa’s budget announcement by the finance minister has been abruptly canceled and rescheduled for next month over a dispute among parties in the governing coalition.

South Africa's Finance Minister Enoch Godongwana has been forced to postpone the unveiling of the national budget following sharp disagreements within the coalition government. Coalition partners derailed his budget after opposing his plan to raise value-added-tax (VAT),

South Africa's rand weakened on Wednesday, after the national budget was postponed until further notice due to disagreements within the coalition government. At 1402 GMT, the rand traded at 18.57 against the dollar,

Officials say pro-business Democratic Alliance and senior figures in African National Congress objected to VAT rise