What information does the individuals-with-significant-control register have to record about each person?

The Business Corporations Act sets out specific categories of information the register needs to capture for each individual with significant control, not just their name. Alongside identifying details like the person's name and address, the register generally needs to record how and when they became an ISC, a description of the basis for their significant control, whether that's a share ownership or voting threshold, board-control rights, or another form of significant influence, and, where relevant, the date they stopped being an ISC if that's changed.

The point of requiring this level of detail is to make the register genuinely useful to the people entitled to see it, whether that's a regulator investigating the corporation or a shareholder trying to understand who actually controls it, rather than a bare list of names with no explanation of why each person is on it.

Because the required content is specific and detailed rather than a general summary, corporations building or updating their register for the first time often find it more involved than expected, and getting the categories of information right the first time avoids having to redo the exercise later.