Putting a new holding company (“HoldCo”) on top of an existing operating company – a “flip-up” – sounds simple: everyone’s shares in the old company become shares in the new one instead. Done carelessly, though, it can trigger a capital gains tax bill for you and your co-founders, even though no one’s sold anything or taken cash off the table. The good news is that tax law anticipates exactly this situation and lets it happen tax-free, as long as the rules are followed. Here’s what founders need to know.

This article covers a flip-up wholly within Australia. Cross-border flip-ups – especially heading to the US – are also a recognised path, but need specific advice and are beyond the scope of this article.

What a flip-up actually is

Today, shareholders own shares directly in the operating company (OpCo). In a flip-up, a new company (HoldCo) is set up and each shareholder hands their OpCo shares to HoldCo. In return, they get shares in HoldCo, in exactly the same proportions they held before. When the dust settles, HoldCo owns 100 percent of OpCo, and the same people own 100 percent of HoldCo – the cap table looks identical, just with a new layer on top.

Nothing’s really changed in terms of who owns what. But in the eyes of the tax system, every shareholder has “disposed of” their OpCo shares, and a disposal can create a capital gain.

The fix: rollover relief

This is where a rollover comes in. Australian tax law has a specific provision (Division 615) built for precisely this scenario. If the restructure meets the conditions, everyone gets to ignore the capital gain on the swap. The new HoldCo shares simply inherit the history of the old OpCo shares, including their original cost and purchase date. In plain terms, the tax that would otherwise be payable is deferred until the shares are actually sold down the track, rather than being triggered just by reorganising.

To qualify, the key conditions are that:

• All shareholders swap all their OpCo shares
• They receive only HoldCo shares in return (no cash)
• Everyone ends up in the same proportions they started with

It’s designed to be neutral, so the more the flip-up looks like a straight mirror of existing ownership, the cleaner it is.

There are two versions of this rollover. Division 615 is the one most founders use, and it applies when a company has two or more shareholders. If you’re a solo founder, or you own the company through a single trust, a close cousin called Subdivision 122-A does the same job. The names don’t need to be memorised – knowing both exist means the right one gets used for your situation.

Two tax points best handled at the same time

The corporate side of a flip-up – the share transfers and ASIC filings that actually put the new structure in place – is handled by your corporate services provider or lawyer. Alongside that, two tax-related points are best dealt with at the same time rather than left as loose ends.

The rollover choice. To lock in the tax relief, HoldCo has to formally make a tax choice within two months of completing the flip. It can’t be undone later, and there’s no form lodged with the ATO to prove it was made in time – which makes it easy to complete the flip, get busy running the business, and quietly miss the window. If that happens, the rollover can be lost and the tax bill it was meant to avoid can land after all. The fix is simple: make and document the choice at the time, usually with a short signed company resolution, and keep it on file.

Writing down the cost base. When HoldCo takes on the OpCo shares, the tax rules set a specific starting value (the “cost base”) for those shares, worked out from what sits inside OpCo. That figure may not be needed for years, until HoldCo eventually sells OpCo or the group is restructured again – and by then, the information needed to calculate it can be very hard to dig up. Recording it now, while everything’s fresh, and keeping it with the company’s records saves a real headache later.

Do it early if you can

The best time to add a holding company is when the business is still worth very little. When there’s essentially no value in OpCo yet, there’s no real gain to worry about, the paperwork is lighter, and the whole thing is low risk. The longer you wait, the more value builds up underneath, and the more important it becomes to get the rollover exactly right. If a HoldCo is on the horizon, earlier is almost always easier.

A couple of things to watch

SAFE notes, convertible notes, options or an employee share plan already in place can complicate the swap and need to be worked through first. Different classes of shares can do the same. None of this is a dealbreaker – it just means the structure deserves a proper look before pressing go, so the right rollover is used and the mirror stays clean.

This article is for general informational purposes only and does not constitute financial, legal or tax advice. Please speak with a qualified adviser (hey, that’s us!) before making decisions based on your specific circumstances.