Polls in recent months have had Kurz's People's Party (OeVP) on around 34 per cent of the vote, which would mean a second straight victory for him after the last election in 2017.

Banking on tax cuts and his anti-immigration policies, Kurz has emerged largely unscathed from the video scandal that brought down his government and cost him his job as chancellor.

In contrast, the FPOe is still reeling from the so-called Ibiza video, which showed party leader Heinz-Christian Strache discussing infrastructure and media deals with a woman posing as a wealthy Russian donor.

While the originators of the footage shot on the Spanish island remain unknown, Strache stepped down as vice chancellor and FPOe chief and is now under investigation for possible abuse of power.

Three days before the election on Sunday, prosecutors announced that they also suspect Strache of having defrauded his own party, despite his monthly 10,000-euro ($A16,178) expenses account.

Recent polls that were conducted before these latest revelations predicted around 20 per cent for the FPOe.

The Social Democrats (SPOe) have been unable to profit from these scandals. The party is projected to collect around 22 per cent of the vote, which would be its weakest result in a national election.

In contrast, gains are expected for the Greens and the liberal Neos, which are seen as possible coalition partners for Kurz, in case he decides against attempting another government with the far right.

Australian Associated Press