Du Toit was first selected for the Springboks in 1980 to tour South America. He did not play in any test matches on the South American tour and made his test debut for the Springboks during the 1981 tour of New Zealand in the first test on 15 August 1981 at Lancaster Park in Christchurch. He played a further four tests for the Springboks, two each against the 1982 South American Jaguars and the 1984 English touring team, respectively. Du Toit also played in 11 tour matches for the Springboks, scoring two non-test tries.