In family court, the principle of 'equality of arms' means both parties should have a fair and equal opportunity to present their case — including access to documents, time to prepare, and the ability to respond to the other side's evidence. It is especially relevant for litigants in person, who may be at a disadvantage when the other party is legally represented. The court has a duty to ensure proceedings are fair and may give directions or assistance to help balance the position between a represented and an unrepresented party.
In Plain English
The rule that both sides must be treated fairly and given an equal chance to present their case. The judge must ensure the process is fair, even if one person has a lawyer and the other does not.
This content reflects observational insights and lived community experiences. It does not constitute legal advice — always consult a qualified professional for your specific circumstances.
A "gap" is a common assumption people hold going into family court, set against what the court actually does. The bold line below is the assumption — not a fact. The reality underneath is what the court typically observes.
Gap #143
The assumption
I earned more and paid more — the court will see my contribution was greater.
The reality
To assert unmatched contributions on your ES1 you need something truly exceptional, not just a higher salary. A business built entirely independently, or a contribution so disproportionate the court could not fairly ignore it. The bar is kept deliberately high because of the 'yardstick of equality' from White v White [2000] UKHL 54, which exists specifically to stop the court ranking breadwinning above homemaking. In Cooper-Hohn v Hohn [2014] EWHC 4122 (Fam), the scale of wealth involved was itself extraordinary, and even there the argument is treated as rare rather than routine. 'I earned more' almost never meets that bar.
Gap #149
The assumption
It'll just be split 50/50 — that's what always happens.
The reality
Needs, children, income gaps, and housing affordability can all justify a different outcome. Marking No to departure from equality without understanding your own needs may close off a position you actually have — before you've even got to the hearing.
Gap #279
The assumption
Divorce splits everything 50/50.
The reality
The 50/50 starting point comes from White v White [2000] UKHL 54, where the House of Lords set out the 'yardstick of equality': the assets of a marriage should normally be shared equally unless there is good reason to depart. It is a cross-check the court uses, not a formula it applies automatically. Needs, children's welfare, pension provision, mortgage capacity and non-matrimonial property such as pre-marital assets or inheritance can all justify a different outcome. Standish v Standish [2025] UKSC 26 confirmed that the sharing principle applies to matrimonial property only. Non-matrimonial assets, including wealth transferred between spouses without an intention to benefit the recipient personally, stay outside it. A 50/50 split is common in long marriages with modest assets, but it is the result of applying the law to the facts, not a starting rule.
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A McKenzie Friend can help you understand terms like these in the context of your case.
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