Taxation Administration Act 1953

An instalment group consists of:

a company:

that has *majority control of at least one other company; but

of which no other company has *majority control; and

any other company of which the first‑mentioned company has *majority control.

A company has majority control of another company if, and only if:

the first company is in a position to cast, or control the casting of, more than 50% of the maximum number of votes that might be cast at a general meeting of the other company; or

the first company has the power to appoint or remove the majority of the directors of the other company; or

the other company is, or a majority of its directors are, accustomed or under an obligation, whether formal or informal, to act according to the directions, instructions or wishes of the first company.