Guy and Martin (Child support)

The applicant, Guy, sought to revoke existing percentage of care determinations and have new determinations made concerning his children with the respondent, Martin. The dispute centred on a one-off block of 100% care provided by Guy for one month.

The primary legal issue before the Senior Member was whether the circumstances warranted the revocation of existing percentage of care determinations and the making of new ones, specifically in light of the temporary, but complete, transfer of care. The Senior Member was required to consider the relevant provisions of the *Child Support (Registration and Collection) Act 1988* (Cth) and the *Child Support (Assessment) Act 1989* (Cth) concerning the determination of care percentages.

The Senior Member affirmed the decision under review, finding that the one-off block of 100% care for one month did not meet the threshold for revoking existing care determinations and making new ones. The reasoning applied was that such a temporary arrangement, while significant, did not constitute a permanent change in the pattern of care that would justify altering the established percentage of care arrangements. The existing determinations were therefore maintained.