Can an Ex-Spouse Claim on Your Estate After You Die?

You're divorced. Your property settlement was finalised years ago. You've moved on, remarried, maybe built a new business or grown your wealth significantly since then.

You assume the chapter is closed.

It's not.

In most Australian jurisdictions, divorce doesn't automatically cut your former spouse out of your estate. And if you never updated your will after the marriage ended, you might be leaving behind exactly the kind of mess you thought you'd avoided when you signed those family law documents.

This isn't about vilifying ex-spouses or creating paranoia. It's about understanding a gap that catches people by surprise: the gap between what your family law settlement dealt with and what can still happen after you die.

Why Divorce Doesn't End an Ex-Spouse's Rights to Your Estate

Most people think divorce draws a bright line. You split the assets, sign the papers, and everyone moves on with their respective shares of the property pool.

That's true for the assets that existed at the time of your family law settlement. It's not necessarily true for what you accumulate after, or for the estate you leave behind when you die.

In New South Wales, for example, a former spouse is explicitly listed as an "eligible person" who can bring a family provision claim against your estate. The fact that you're divorced doesn't remove them from that category. Queensland takes a narrower view: generally, former spouses can't claim unless they were receiving maintenance from you or were partly or wholly dependent on you at the time of your death. South Australia sits somewhere in between.

The pattern varies state by state, but the core principle is consistent: divorce, by itself, doesn't necessarily remove your ex-spouse's ability to argue that your will (or the intestacy rules if you died without a will) failed to make adequate provision for them.

Can you articulate, right now, what your state's law says about former spouse eligibility? If you can't, you're not alone. Most people assume the family law settlement covered it.

It usually didn't.

How Divorce Affects Your Will in Practice

Here's what actually happens when you get divorced, assuming you had a will in place during the marriage.

In most Australian states, divorce has a specific, limited effect: it treats your former spouse as if they had died before you. That means any gift to them in your will is revoked. If you'd appointed them as your executor or trustee, that appointment is also revoked.

Everything else in the will remains intact.

Let's say you made a will 20 years ago that said: "I give everything to my wife, but if she predeceases me, I give everything to my children." You divorce ten years ago. You remarry five years ago. You die today without updating that will.

The gift to your ex-wife is revoked by the divorce. But the "if she predeceases me" clause now operates as if she had died. So your estate passes to your children from your first marriage. Your current spouse, who might have been financially dependent on you or contributed significantly to the assets you built together post-divorce, gets nothing under the will.

That's not a hypothetical edge case. It's a pattern that plays out in contested estate disputes regularly.

The problem isn't just that your ex-spouse might claim. It's that your will, drafted in a different era of your life, might now produce results you never intended. And those unintended results create fertile ground for disputes: between your current spouse and your children, between different sets of children, or between anyone who feels unfairly left out.

If you've been through a divorce and never revisited your will, you're operating with a document that was designed for a life you no longer live.

When a Former Spouse Can Still Claim on Your Estate

So under what circumstances can your ex actually make a claim?

It depends on your state, but the common thread is this: courts will consider whether you had an ongoing obligation or duty to your former spouse at the time of your death, and whether your will (or intestacy) failed to make adequate provision for them in light of that obligation.

In New South Wales, the test is relatively open. A former spouse is an eligible person. The court then asks: was adequate provision made? It considers factors like the nature and length of the relationship, the size of the estate, the financial circumstances and needs of the claimant, the claims of other beneficiaries, and any ongoing support or promises you'd made.

In Queensland, the threshold is higher. Generally, a former spouse must show they were receiving maintenance from you, or were wholly or partly dependent on you, at the time of your death. If you'd finalised a clean-break property settlement and there was no ongoing maintenance, their pathway to claim is much narrower (though not always completely closed).

Victoria, South Australia, and the other states each have their own variations, but the questions courts ask are similar:

• Were you providing ongoing financial support to your former spouse when you died (spousal maintenance, paying their rent, funding school fees for children in their care)?
• Did your former spouse have a demonstrated financial need that wasn't met by the family law settlement?
• Was the estate large enough that making provision for your ex wouldn't materially harm the other beneficiaries?
• How long ago was the divorce, and what was the reason for any ongoing financial connection?

Here's a scenario that strengthens a former spouse's claim: you divorced, but you continued paying spousal maintenance and the mortgage on a house your ex lived in. Your children from that marriage lived with your ex, and you covered their school fees. When you die, your will leaves everything to your new spouse. Your former spouse's lawyer argues: you had an ongoing duty to support my client, evidenced by years of maintenance and housing, and the estate is substantial enough to continue that support without leaving your current spouse in hardship.

That's a claim a court will seriously consider.

Contrast that with a scenario where you divorced 20 years ago, did a final property settlement with no ongoing maintenance, both of you remarried and built independent lives, and your estate isn't particularly large. A claim by your ex in that scenario is far weaker, though in some states, not impossible.

The takeaway: if there's any ongoing financial thread connecting you to your former spouse, assume they could argue that thread should continue after your death.

What Courts Look at When an Ex-Spouse Makes a Claim

You need to understand how these disputes actually get decided, because it changes how you should plan.

A family provision claim is not a re-litigation of the divorce. The court isn't asking: "Did the family law settlement give my client a fair share of the assets?" It's asking: "Did the deceased's will make adequate provision for the claimant, given all the circumstances at the time of death?"

The court will consider:

• The size and nature of the estate. A $20 million estate creates different possibilities than a $500,000 estate. Provision for one person doesn't necessarily deprive others when the pool is large.
• The financial circumstances of the former spouse. Are they employed, self-sufficient, or in poor health? Do they have significant assets of their own, or are they struggling? Courts won't make provision for someone who's financially comfortable and has no demonstrated need.
• The length and nature of the marriage. A 25-year marriage where you raised children together carries more weight than a two-year marriage with no children.
• Contributions during the marriage. This isn't usually the decisive factor (that was dealt with in family law), but courts will note whether the claimant made significant non-financial contributions or sacrificed their career.
• Ongoing dependence or support. This is often the key factor. If you were still paying maintenance or otherwise supporting your ex at the time of death, the court will treat that as evidence of an ongoing duty.
• The claims of other beneficiaries. The court balances competing needs. Your current spouse, your children, and other dependants all have claims on your estate. The question becomes: can adequate provision be made for your former spouse and the others, or does providing for your ex unfairly harm someone else?
• Any evidence of your intentions. If you made a will that deliberately excluded your ex and articulated reasons for doing so (e.g. in a letter or statement of testamentary intentions), courts will give that weight, though it's not determinative.
• Time since the divorce. The longer it's been, and the more separate your lives became, the weaker the claim. But in some jurisdictions, even a long gap won't completely bar a claim if ongoing need can be shown.

One thing courts care about: whether you acted reasonably in light of your obligations. If you had a large estate and an ex-spouse who you'd supported for years, and your will simply ignored them with no explanation, a court is more likely to intervene. If you made some provision, or you have a documented reason for not doing so, the claim becomes harder to sustain.

What This Means If You Own a Business or Have Complex Assets

If you're a business owner, the risks multiply.

Most family provision disputes assume a fairly simple asset pool: house, super, maybe some shares or a term deposit. The executor distributes according to the will or court order, and everyone moves on.

Your situation is different.

You might own shares in an operating company. You might be a director with personal guarantees backing the company's debts. You might have structured your affairs through a family trust or unit trust, with you as appointor or controller. You might have shareholder loans sitting on the company's books. Your wealth might not be sitting in a bank account; it might be locked up in working capital, plant and equipment, or goodwill in a business that your current spouse or your children are now running.

When a former spouse brings a claim against your estate, the executor has to respond. That means:

• Retaining lawyers to defend the claim or negotiate a settlement.
• Producing financials and valuations of the estate assets, which may include business valuations.
• Potentially delaying distributions to other beneficiaries until the dispute is resolved.
• In some cases, being forced to realise assets (sell property, call in loans, liquidate investments) to fund a settlement or judgment.

If your business is one of those assets, and it depends on you personally (guarantees, key relationships, continuity), your executor is now navigating a dispute while also trying to keep the business stable. That's difficult in the best of circumstances. It's significantly harder when a former spouse is arguing they're entitled to a share of an estate that includes a company you built mostly after the divorce.

Can your ex-spouse reach into trusts or companies? Directly, usually not. Trusts and companies are separate legal entities, and estate claims are generally against the deceased's personal estate. But if you control the trust as appointor, or you're the primary beneficiary, or the company owes you a director's loan, the value of those control rights or debts will form part of your estate. Your ex-spouse's claim is against your estate, which includes the value of what you owned or controlled.

The practical effect: even if they can't force a sale of the family trust or wind up the company, they can create pressure on your executor to settle, and that settlement might require the business to pay out a loan or for the estate to transfer value that was earmarked for your current spouse or children.

If your estate plan doesn't account for this, your family and your business are exposed.

Steps You Can Take Now to Reduce the Risk of a Claim

You can't eliminate the risk entirely, but you can reduce it significantly.

Start by updating your will. If you haven't touched it since the divorce, it's almost certainly out of date. A modern will should reflect your current family, your current assets, and your current intentions. Don't assume divorce "fixed" the old will. It didn't.

Consider whether some provision for your former spouse makes sense. This isn't about rewarding them. It's about reducing the scope for argument. If you're paying spousal maintenance now, and you know your ex doesn't have significant assets or income, a modest provision in your will (or life insurance) might head off a much larger claim later. The provision should be proportionate to your obligations and the size of your estate, but it's worth considering.

If you've been providing ongoing financial support, document it. Keep records of what you've paid, why, and for how long. That gives your executor the information they'll need to defend (or explain) your estate plan if challenged.

If you have a binding financial agreement or family law consent orders, check whether they address succession rights. Some agreements include a clause where both parties release any claim on the other's estate. In some states, that release may need to comply with specific statutory requirements or be approved by a court to be effective. If your agreement doesn't deal with estate claims, talk to a lawyer about whether it's possible to amend it or obtain a separate release.

Think about how your assets are structured. If you hold significant wealth in trusts or companies, and you want that wealth to ultimately benefit your children or your current spouse, make sure the control and succession of those structures are clearly documented. Update your appointorship, your trust deed, your shareholders' agreement. Don't leave gaps where your executor has to guess what you intended.

If you have life insurance, consider whether it should sit inside your estate (and be available to satisfy claims) or outside it (held in trust for specific beneficiaries and generally not reachable by estate claimants). This is a decision with trade-offs, and it depends on your circumstances.

Get your current spouse and children involved in the conversation, if appropriate. If you're remarried and you're making decisions that affect both your current spouse and children from a prior marriage, transparency reduces the chance of disputes later. People contest wills when they're surprised. If your children understand why you've structured things a certain way, they're less likely to fight it.

Finally, revisit your estate plan whenever something material changes: a new business venture, a significant increase in wealth, remarriage, the birth of grandchildren, a change in your ex-spouse's circumstances, or a change in the law.

How to Align Your Family Law Settlement and Your Estate Plan

This is where many people stumble. They treat family law and estate planning as separate silos. They finalise a property settlement with their ex-spouse, feel a sense of closure, and then forget to revisit their will or think about what happens after death.

The two are connected.

When you're negotiating your family law settlement, consider including a clause where both parties release any claim on the other's future estate. Whether that release is enforceable, and what form it needs to take, varies by state. In some jurisdictions, you might need to make an application to the court for approval of a release under succession legislation. In others, a well-drafted clause in a financial agreement may suffice, though there's often debate about its effectiveness.

The important thing is to raise the issue during the family law process. Once your property settlement is finalised and your divorce is granted, it's much harder to go back and obtain a release. Your ex-spouse has no incentive to give you one, and you can't force them to.

If you're past that point, and your settlement didn't address estate claims, you can still manage the risk through your will. You can make a provision for your ex that reflects any ongoing obligations, and you can articulate your reasons for the level of provision you've made. That's not as bulletproof as a statutory release, but it reduces the chance of a successful claim.

If you're still in the middle of family law proceedings, this is the time to raise succession planning with your lawyer. Ask: "Does our agreement address what happens if I die? Can we include a release of estate claims? What do I need to do to make that enforceable?"

For business owners, this is especially important. If your business was part of the family law property pool, and your ex-spouse received other assets in exchange for you retaining the business, document that trade-off clearly. If a claim is later brought against your estate, your executor can point to the family law orders and say: "The business was specifically retained by the deceased as part of a negotiated settlement. The claimant received other assets of equivalent value."

Courts won't necessarily be bound by that, but it's a much stronger position than having no documentation at all.

When to Get Advice and What to Bring to That Discussion

You should get advice now, not when your executor is facing a claim.

If you've been through a divorce, if you've remarried, if you own a business or hold assets in trusts, or if you're providing ongoing financial support to a former spouse, talk to a lawyer who understands both family law and estate planning. This is not DIY territory.

When you go into that discussion, bring:

• Your current will (if you have one)
• Any family law consent orders, binding financial agreements, or property settlement documents
• Details of any ongoing financial support you're providing to your ex-spouse (maintenance, school fees, housing, loans)
• A snapshot of your current assets: business interests, trusts, super, property, investments
• Information about your family: current spouse, children from this relationship and prior relationships, any dependants
• Any prior estate planning documents, letters of wishes, or trust deeds

The lawyer's job is to help you understand the risk and design a plan that reflects your intentions, provides for the people who depend on you, and reduces the chance of disputes after you're gone.

That plan might include updating your will, restructuring how you hold assets, obtaining a release of estate claims if possible, or setting up insurance to fund potential claims without forcing your business or family into hardship.

The cost of that advice now is a fraction of the cost of a contested estate dispute later. And the benefit is not just financial. It's peace of mind: the knowledge that if something happens to you, your family won't be blindsided by a claim they didn't see coming.

The Path Forward

Divorce doesn't reset everything. It resets some things. Your family law settlement dealt with the assets you owned at the time. It didn't necessarily address what happens to the wealth you build afterward, or who can claim on your estate when you die.

If you've never updated your will since your divorce, or if you're providing ongoing support to a former spouse, you're exposed. Your estate might face a claim. Your executor might be forced to negotiate or litigate. Your current spouse and children might not receive what you intended.

The solution isn't complicated, but it does require attention. Update your will. Document your intentions. Align your family law settlement with your estate plan. Consider whether provision for your former spouse makes sense, and structure it in a way that's clear and defensible.

If you own a business, take this seriously. Your estate plan affects business continuity, succession, and your family's financial security. A disputed estate can derail all three.

Get advice. Bring the right documents to the table. Make decisions that reflect the life you live now, not the life you lived when you first drafted that will 20 years ago.

Litigation is messy and expensive. Planning is straightforward and protective. The choice is obvious.

Disclaimer: This article provides general information only and does not constitute legal advice. The law relating to former spouses and estate claims varies by state and territory, and every situation is different. If you're navigating a family law settlement, estate planning, or a potential dispute, get specific advice for your circumstances.