Most people going through a divorce aren’t careless. They’re overwhelmed, emotional, and trying to make dozens of decisions at once during one of the most challenging periods of their life.
That’s exactly why well meaning mistakes happen so often. A decision that feels reasonable in the moment, like agreeing to terms quickly just to end the conflict, or not bothering to formally document an arrangement with a friendly ex, can quietly cost you your fair share of the property pool or your rights years down the track.
The problem are that some of the biggest divorce mistakes rarely show up immediately. They surface later, when superannuation turns out to be worth less than expected, when an informal agreement falls apart because nothing was written down, or when a parenting arrangement made in anger becomes the default arrangement because no one changed it.
By then, undoing the damage is far more expensive, and far more stressful, than getting it right the first time would have been.
The good news is that almost every one of these costly errors is avoidable. Below are the common and some of the biggest divorce mistakes we see most often, along with what to do instead to protect your rights, your finances, and your children through the process.
1. Acting Out of Anger, Guilt, or Revenge
Acting out of anger during a divorce is understandable, but it rarely leads anywhere good. Revenge can lead to spending on legal fees that could have gone toward your future, saying things in front of the children that damage co-parenting later, or agreeing to unfavourable outcomes just to punish a former spouse.
Decisions made from an emotional place are almost never the decisions you’d make with a clear head, and they’re very hard to undo once they’re in a signed agreement or a court order.
What to do instead: Give yourself space before responding to anything contentious. If a decision doesn’t need to be made today, it usually shouldn’t be.
2. Not Getting Quality Legal Advice Early
One of the most common and almost one of the biggest divorce mistakes people make when getting a divorce is trying to handle it alone, or taking advice from friends or family instead of a family lawyer. Every divorce is different, and general advice from someone who went through their own divorce years ago, in a different state, with different assets, often does more harm than good.
Getting legal advice early also means understanding your financial position and your rights before you agree to anything, not after. This is particularly important if children are involved, since parenting arrangements and property settlements are often negotiated at the same time.
What to do instead: Speak with a family lawyer before entering settlement negotiations, even if you think your situation is simple. What looks straightforward can involve financial claims you weren’t aware you had.
3. Hiding or Failing to Disclose Assets
Full and frank financial disclosure is a legal requirement in Australian family law, not a courtesy. Hiding assets, undervaluing a business, or failing to mention income from a side venture can unravel an entire settlement later, sometimes years after a financial order has been finalised. Courts take non-disclosure seriously, and it can result in a consent order being overturned or a financial agreement being set aside.
What to do instead: Disclose everything, even assets you assume are irrelevant or separate. Your lawyer can advise on what’s actually excluded from the property pool, but that’s their call to make with full information, not yours to decide by omission.
4. Rushing Through a Settlement to Get It Over With
Divorce is a stressful time, and it’s tempting to agree to terms quickly just to move on with your life. Rushing an agreement without properly considering superannuation, future financial needs, or the tax implications of a property division is one of the most common and biggest divorce mistakes we see, and one of the hardest to reverse once it’s finalised.
What to do instead: Take the time to understand the full picture before signing anything. A short delay now is far less costly than an unfavourable outcome that lasts for years.
5. Overlooking Superannuation and Future Financial Needs
Superannuation is often one of the largest assets in a relationship, yet it’s frequently overlooked or undervalued in a property settlement. Ignoring superannuation, or failing to consider your future financial needs and earning capacity compared to your former partner’s, can leave you financially vulnerable long after the divorce is final.
What to do instead: Treat superannuation as seriously as any other asset. If you’re unsure how property is divided after separation or how a shared home should be valued, that’s exactly the kind of question worth raising with your lawyer before agreeing to anything.
6. Making verbal Side Agreements With Your Former Spouse
It’s common for former spouses to agree to something informally on the side, whether that’s a change to parenting time, a temporary financial arrangement, or who pays for what while things settle. The problem is that an verbal agreement isn’t enforceable, and if your spouse’s circumstances or intentions change, you have no written agreement to fall back on.
This comes up often with property arrangements too. Questions like whether paying rent at a property you own affects your protection in a family law matter are exactly the kind of thing an informal side agreement can leave dangerously unclear.
What to do instead: Put every agreement in writing, no matter how minor it feels or how amicable things currently are.
7. Using Children as Pawns or Leverage
Involving children in disputes, whether by badmouthing the other parent, using contact time as a bargaining chip, or treating them as confidants for adult problems, has a well documented negative impact on your children. It also tends to backfire in parenting proceedings, where the court’s primary concern is the best interests of the child, not either parent’s grievances.
This is also where practical questions often surface, including whether you can change your child’s school without the father’s consent or whether one parent can enrol a child in school without the other parent’s permission. These decisions should be made based on the child’s needs, not as leverage in a broader dispute.
What to do instead: Keep post-divorce parenting arrangements focused on the children’s needs, and take adult conflicts to your lawyer or a mediator instead.
8. Going Straight to Court Without Trying Other Options
A court battle is sometimes necessary, but it’s rarely the fastest, cheapest, or least stressful path to a resolution. Going straight to court without first attempting mediation or family dispute resolution can drag out a divorce process that might otherwise have been resolved in weeks rather than months, and it significantly increases legal fees on both sides.
What to do instead: Explore mediation and settlement negotiations first. Court should generally be the fallback, not the starting point, unless there are safety concerns that require it.
9. Failing to Sever Financial Ties
Failing to formally sever financial ties, including joint bank accounts, shared debts, and joint loan obligations, is one of the more overlooked common and some of the biggest divorce mistakes people make after a divorce is final. Allowing your spouse to remain linked to your finances, even unintentionally, can affect your credit and leave you exposed to debts you didn’t know were accumulating.
What to do instead: Close or separate joint accounts, refinance shared debts where possible, and formally document the order to sever financial ties as part of your settlement, not as an afterthought once everything else is signed.
10. Not Updating Legal and Financial Documents After Divorce
Many people finalise their divorce and assume the process is complete, without updating their will, superannuation beneficiary nominations, or other estate planning documents to reflect their new circumstances. This can leave a former spouse legally entitled to assets you never intended for them to receive.
Practical updates matter too. Once a settlement is finalised, it’s worth considering things like how to change back to a maiden name, updating your will, and reviewing insurance and superannuation nominations, all of which are easy to forget once the legal process itself is over.
What to do instead: Treat the divorce decree as the start of your post-divorce checklist, not the end of it.
Financial Preparation Also Protects You From Biggest Divorce Mistakes
Beyond avoiding these specific biggest divorce mistakes, understanding your financial position generally is one of the best ways to protect yourself financially and emotionally through a divorce. Financial or legal advice early on gives you a realistic picture of your standard of living going forward, rather than leaving you to assume the worst or, just as risky, assume everything will work out on its own. Resources like Moneysmart from the Australian Government provide general guidance on separating finances, and Family Relationships Online can help you find mediation and dispute resolution services if you’d prefer to avoid a court battle altogether.
When You Should Get Professional Help
If you’re feeling overwhelmed by the legal processes involved in separating, that’s a sign to bring in support, not a sign you’re failing to cope. Our family lawyers, including Hayder Shkara and Caralee Fontenele at Collective Family Law Group, help clients avoid these common and biggest divorce mistakes by getting the financial disclosure, agreements, and parenting arrangements right from the outset, rather than trying to fix them after the fact. You can view the full team on our family law page, or visit our homepage to book a consultation.
It’s also worth remembering that not every question needs to feel too small or too unusual to raise. We regularly answer questions clients assume are irrelevant to their case, including things like whether OnlyFans is illegal in Australia, which can matter where undisclosed income affects a property settlement. If in doubt, ask.
This article provides general legal information only and does not constitute legal advice. Every divorce is different, and you should speak with a family lawyer about your specific circumstances before making decisions about your settlement.
Frequently Asked Questions
What is the biggest mistake during a divorce?
Not getting quality legal advice early is generally considered the biggest and most common mistake. It leads directly to many of the others, including agreeing to unfavourable settlement terms, missing financial disclosure obligations, and misunderstanding your rights around property and parenting arrangements.
Why is divorce so hard?
Divorce is difficult because it combines significant emotional stress with complex financial and legal decisions, often at the same time. Grief, anger, and uncertainty about the future can make it hard to think clearly, which is exactly why rushed or emotionally driven decisions are one of the most common and one of the biggest divorce mistakes.
Who loses most in a divorce?
There’s no universal answer, since outcomes depend on each person’s financial position, contributions, and future needs. However, the person who fails to get proper legal advice, doesn’t disclose or understand the full asset pool, or rushes into an agreement without reviewing it carefully is generally the one left with the least favourable outcome.
How do you separate finances during separation?
Start by identifying all joint accounts, debts, and shared financial products, then work with a family lawyer to formally divide or close them as part of your settlement. Informal arrangements to simply stop using a joint account aren’t enough, since both parties usually remain legally liable until the accounts are formally separated or refinanced.
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