The pair split nine months ago.
Ant McPartlin and his estranged wife Lisa Armstrong are reportedly to divorce today as a judge will grant a ‘decree nisi’ to finalise proceedings.
The divorce will be granted on the grounds of ‘ unreasonable behaviour’ after Ant admitted to adultery.
The case is to be heard today, with a quick decision being made after months of drama for the pair.
“It’s taken some time to iron things out but after several months their marriage will officially be over in a matter of seconds,” a source told The Sun.
According to sources, Ant admitted to committing adultery due to his relationship with former PA Anne-Marie Corbett starting before he and Lisa had formally divorced.
The source also revealed that Ant and Lisa are currently negotiating a financial settlement.
The former couple were married back in 2006 but announced earlier this year that they had split.
In June, reports surfaced that Ant had moved on with current-girlfriend Anne-Marie.