Guidance, not advice. This is a map, not legal or financial advice — for your own situation you need a family lawyer (ideally one who gets small business) and usually an accountant. As at May 2026.
Separation or divorce can put your business "on the table" even when it's legally in your name alone — and at the same time you still need the thing to run. The real work is managing both: the legal and financial split, and keeping customers, staff and cash flow steady while your personal life is on fire.
How family law sees your business
Under the Family Law Act 1975, the starting point is a single property pool of what the relationship has — and that includes the business even if it's in one name, whether it's a sole trade, a partnership interest, company shares or an interest in a trust. (It applies to de facto couples, not just marriages.) The court works through a broad four-step process — identify and value the pool, weigh each side's contributions, consider future needs, and land on a split that's just and equitable. Two things worth knowing: the court cares far more about the value and income the business produces than about taking it over, and it will usually avoid forcing the sale of a viable trading business unless there's no other way to meet needs. Emotionally it's brutal — you sweated to build it and suddenly it's a number on a spreadsheet.
It depends on your structure
- Sole trader — the business is essentially you (clients, brand, tools, the ute). There are no shares to hand over, so what gets divided is value and income — and the settlement usually accounts for the business by giving your ex more of the house or savings, or setting maintenance against your earning capacity. Claiming it's worth nothing while your bank statements say otherwise just costs you credibility.
- Partnership — if you and your ex are business partners, the business relationship may have to end too; a good partnership agreement that covers exit and dispute is what stops the whole thing collapsing.
- Company or trust — the company is separate, but your shares aren't separate from the relationship, and value sits in the shares, retained profits and what you draw. You'll usually keep your shares and control with your ex compensated from other assets — courts rarely force ex-partners to stay in business together — but they can look through a trust or structure set up purely to hide value.
Valuation, and what's at risk
A valuer looks at earnings (normalised profit), assets, goodwill (heavily discounted if it's really you the clients buy) and market comparisons. The hard truth: a one-person trade business is often worth not much more than its assets and working capital — there's no saleable "thing" if you got hit by a bus — whereas a business with a team, a brand and recurring revenue can carry real value, which changes the negotiation. Jointly instructing one independent expert beats a duelling-valuer battle that costs more than the gap. The risks aren't only legal (a claim on the value, a lump sum, ongoing maintenance against your income); they're operational (an ex who was the bookkeeper or co-signatory suddenly gone, staff picking sides, you running on empty) and relational (threats to "take half" or "tell your clients", and the identity shock when your worth feels tied to the business).
Keeping it running, and protecting it
Survival mode: stabilise cash flow early (chase invoices, hoard runway), document and formalise access calmly (change passwords where appropriate, but courts dislike vindictive freeze-out tactics), ring-fence client relationships (a simple "we've made some internal changes" — don't air it on socials), protect your own capacity (sleep and food aren't soft — burnout makes dumb decisions), and use your accountant as a shield for disclosure and settlement modelling. The things that protect a business are mostly set up before trouble — a partnership or shareholders' agreement, a Binding Financial Agreement (the Australian equivalent of a "pre-nup", which carries weight if both sides took advice and it's broadly fair), and clean governance — but even mid-crisis you can separate tangled personal and business finances and document any money or unpaid work your ex put in (which can justify them taking more from other assets rather than the business itself).
The honest, lived-experience bit
Courts don't want to kill the goose that feeds everyone, including the kids — they'd rather hand your ex a bigger slice of other assets than destroy a viable business. But if you're evasive or try to hide income, the court leans harder on you; honesty plus smart structuring beats hiding and hoping. And the heaviest weight is usually not the final settlement — it's the 12-24 months of uncertainty, legal fees and stalled growth in the middle. You're allowed to be a mess through it; the trick is to build enough scaffolding (advisers, basic systems, trusted staff) that the business doesn't collapse while everything's shaking. Treat separation as another exit scenario to plan for, alongside illness, death and sale (see Exit, Selling & Winding Down and Death of a Sole Trader). If the stress is grinding you down, you're not alone — see Financial Stress & Mental Health.
Common mistakes
- Pretending the business is worthless when the records say otherwise.
- Vindictive freeze-outs (locking an ex out) that the court takes a dim view of.
- No Binding Financial Agreement or shareholders' agreement set up while things were good.
- Letting the business drift because all your bandwidth is on the separation.
Know someone who needs this?
Keep reading
Was this guide useful?
Didn't find what you were looking for?
Spotted something wrong or out of date? Email us at hello@kilnguides.co.uk.
In crisis? Lifeline 13 11 14 ·