A CMS decision showing nil maintenance does not, by itself, make an existing court-ordered top-up disappear. That is the key message for high-earning fathers from the Court of Appeal’s decision in Morgan v Antoniou; Morrell v Morgan [2026] EWCA Civ 1363, handed down on 21 October 2026.
The ruling brings clarity to an issue that had produced opposite conclusions in two first-instance cases. But it cuts both ways. A top-up order may survive changes to a Child Maintenance Service (CMS) calculation, including a nil-rate supersession, so a father whose income falls should not assume his court liability has ended.
This is important family court news UK readers should understand: a CMS reassessment and a court order are not interchangeable.
What was the Court of Appeal asked to decide?
The two appeals raised a focused question: when the CMS later reviews, revises or supersedes a maintenance calculation, or makes a decision following an appeal, does that event count as a “fresh maintenance calculation”?
If it did, section 8(6) of the Child Support Act 1991 could mean an existing court top-up order automatically ended. The cases therefore turned on the relationship between the CMS calculation and the additional amount ordered by the family court.
Lady Justice King gave the leading judgment. Sir Stephen Cobb, President of the Family Division, and Lady Justice Asplin agreed.
The Court held that there is one continuing maintenance calculation. A later review, revision or supersession changes that calculation; it does not create a new calculation that automatically terminates a top-up order.
What happened in the two cases?
The appeals concerned consent top-up orders made for Mr Morgan’s children:
- Ms Antoniou: £44,000 a year under a consent order made in September 2020.
- Ms Morrell: £36,000 a year under a consent order made in May 2019.
Mr Morgan, a former professional footballer, told the CMS he was unemployed after retiring. In February 2022, the CMS superseded its calculation to a nil rate, effective from 24 September 2021.
The mothers appealed to the First-tier Tribunal. In March 2025, the Tribunal allowed their appeals and sent the matters back for recalculation. The CMS later assessed Mr Morgan’s gross weekly income as above the statutory threshold across the relevant periods. Around £137,000 in arrears was being pursued in each case.
The first-instance courts had reached opposite conclusions about whether the top-up orders had ended. The Court of Appeal resolved that disagreement:
- Mr Morgan’s appeal in Morgan v Antoniou was dismissed.
- Ms Morrell’s appeal in Morrell v Morgan was allowed.
The decision did not finally resolve the arrears disputes. The Court indicated the parties should try to settle. If they cannot, both cases will return to the Designated Family Judge at the Central Family Court for directions and allocation.
Why does the ruling matter?
The Court rejected an interpretation under which every decision under sections 11, 16 and 17 of the legislation could be treated as a new calculation. That approach, it said, could make top-up orders expire repeatedly whenever the CMS made a change. Parents might then have to return to court again and again, while the position between annual reviews remained uncertain.
For fathers, the practical effect is significant: a CMS nil-rate decision does not automatically cancel a separate top-up order. A court order remains a court order unless it ends or is changed through the appropriate legal route.
There is, however, an important balancing point. The Court noted that a non-resident parent can apply to vary or discharge a top-up order if changed circumstances mean it is no longer justified. A fall in income may be relevant, but a CMS supersession alone is not a substitute for applying to court.
What is a top-up order?
A top-up order is an additional court order for child maintenance in circumstances where the statutory conditions are met. Broadly, section 8(6) allows a court to make one where a CMS maintenance calculation is in force, the non-resident parent’s gross weekly income exceeds the relevant threshold, and the court considers an additional order appropriate.
The threshold is £3,000 gross weekly income, around £156,000 a year before tax. So this issue is most likely to affect higher earners, though the details of an individual order and case matter.
A top-up order is about financial maintenance. It does not decide where a child lives or how much time they spend with each parent. If you are seeking child custody advice or help with child arrangements, keep those questions distinct from your maintenance obligations.
A practical how-to guide for fathers with a top-up order
This ruling is a reminder to act early, carefully and on the right paperwork. If you are facing a change in income or a CMS decision, consider these steps.
1. Read the order closely
Locate the sealed court order and check its exact wording. Note the amount, payment dates, any review provisions, and what it says about duration or variation. Do not rely on memory, informal messages or assumptions about what the order meant.
2. Separate a CMS change from a court variation
A CMS review, revision or supersession changes the CMS calculation. It does not, under this ruling, automatically vary or discharge a separate top-up order. If your circumstances have changed and the top-up amount is no longer affordable or appropriate, get advice about applying to vary or discharge the order.
Do not simply stop paying based on a nil-rate CMS decision. Doing so could allow arrears to build while the court order remains in force.
3. Keep your financial disclosure accurate
Provide complete and accurate information to the CMS and, where relevant, the court. Keep records of income, changes in employment, relevant correspondence and payments made. Clear disclosure helps you explain your position and reduces the risk that a dispute becomes harder to resolve.
Transparency matters. In family law transparency UK discussions, reliable documents and clear timelines are more useful than assumptions or incomplete records.
4. Deal with arrears before they grow
If you think arrears are being calculated incorrectly, or you cannot meet the ordered payments, take advice promptly. Gather the order, CMS notices, appeal decisions, income records and proof of payments. Ask for a clear breakdown of the amount claimed and the periods it relates to.
Early communication may help narrow a dispute or support settlement discussions. It does not guarantee that arrears will be reduced or cancelled, so treat any proposed agreement carefully and get it properly recorded.
5. Get advice on the next procedural step
This is a technical decision about how the statutory maintenance calculation interacts with a court order. A solicitor or suitably qualified adviser can review your wording, circumstances and options. If you are preparing for court, our guide to representing yourself in a UK family court may help you organise your documents and understand practical preparation.
The key takeaway: don’t mistake a nil rate for a clean slate
The Court of Appeal has brought an important measure of certainty: ordinary CMS changes do not, by themselves, create a fresh calculation that automatically wipes out an existing top-up order. The decision may help fathers who believed a nil-rate CMS outcome had ended their court liability. But it also confirms that a top-up order may continue despite changes in the CMS figure.
If your income has fallen, do not wait and hope the order disappears. Check the wording, keep your disclosure clean, address any arrears early and take advice about applying to vary or discharge the order.
At Fathers Rights, we believe informed fathers are better equipped to protect their financial position and keep their focus on their children. Join us in championing practical guidance, fair process and strong father-child relationships.
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This article provides general information, not legal advice. The right steps depend on the wording of your order and your circumstances. Read the Court of Appeal judgment in Morgan v Antoniou; Morrell v Morgan [2026] EWCA Civ 1363 and seek individual advice if you need to act.