Wellness charlatan Belle Gibson faces the threat of jail time after the Federal Court granted an order sought by Consumer Affairs Victoria over her ongoing failure to pay fines of more than $400,000.

The fake cancer conwoman was warned on Tuesday that continuing to thumb her nose at the penalty handed down in September last year could lead to charges of contempt of court, an offence that carries possible imprisonment.

Justice Debbie Mortimer ordered that a penal notice be added to her initial judgment against Ms Gibson, which fined her $410,000 for deceptive and misleading conduct.

Ms Gibson, now 27, was hit with the fine after she was exposed for lying about curing brain cancer with healthy eating and failing to hand over thousands of dollars she had raised from her loyal following in the name of five charities.