Hammond and Hayes (Child support)

The applicants, Hammond and Hayes, sought to revoke existing percentage of care determinations made under the *Child Support (Registration and Collection) Act 1988* (Cth). The dispute concerned whether there had been a change to the likely pattern of care for the subject child, which would necessitate a review and potential revocation of the current care percentages. The matter came before the court for review of a decision made by the Child Support Registrar.

The primary legal issue before the court was whether the applicants had demonstrated a change in the likely pattern of care for the child that warranted the revocation of the existing percentage of care determinations. This required the court to assess the evidence presented by the applicants against the criteria for revoking such determinations under the relevant legislation.

The court found that the evidence did not establish a change to the likely pattern of care. The existing determinations reflected the actual and likely future care arrangements for the child. Consequently, the court affirmed the decision of the Child Support Registrar to refuse to revoke the existing percentage of care determinations.