Child Maintenance Arrears: What the Law Really Says – and What to Do When the System Fails You
Where non-payment of child maintenance is persistent, strategic, or accompanied by obstruction and delay, it may form part of post-separation economic abuse.
Child Maintenance Arrears: What the Law Really Says – and What to Do When the System Fails You
Owed child maintenance for years? Being told different things every time you phone? Exhausted by a system that seems unable—or unwilling—to enforce its own decisions?
You are not alone. Many parents in the UK are owed significant child maintenance arrears. They have done everything right—yet enforcement stalls, advice is inconsistent, and responsibility quietly shifts back onto the parent who is already carrying the burden.
This article explains what the law says, what the Child Maintenance Service (CMS) can do, why enforcement often fails in practice, and the practical steps you can take to push the case forward.
1. The legal framework: child maintenance arrears are a statutory debt
Child maintenance in Great Britain is governed primarily by the Child Support Act 1991 and later amending legislation, supported by regulations that set out collection and enforcement powers. Once CMS has made a maintenance calculation, the paying parent’s liability is not optional.
Core principle: arrears are a statutory debt. They are enforceable using CMS’s statutory powers, not “negotiated away” through delay, repeated phone calls, or administrative inertia.
In practice this means:
- CMS can take enforcement steps without the receiving parent having to run court proceedings.
- Many enforcement tools are administrative and do not require a full court hearing.
- Delay does not automatically extinguish arrears.
Note: This article is general information, not legal advice. The precise route depends on whether your case is under the 1991 scheme or later schemes, the collection method in place (Direct Pay vs Collect & Pay), and where the paying parent is based.
2. Common myths parents are told (and what to do about them)
Parents routinely report being given inconsistent or incorrect information by telephone. This is exhausting—and it can stop enforcement in its tracks if you accept it at face value.
Myths vs legal reality
| Myth | Legal reality / practical truth |
|---|---|
| “There’s nothing we can do.” | CMS has a wide range of statutory enforcement powers. If no action is being taken, demand the specific reason in writing and ask what enforcement power is being progressed now. |
| “You must reopen a new case; the old one is dead.” | Arrears generally survive administrative closure. Case management may change, but historic debt does not automatically vanish because the file is moved or reclassified. |
| “We can’t enforce because too much time has passed.” | There is no straightforward “time-out” that cancels arrears. Delay can be maladministration—but it is not a lawful write-off. |
| “You need Child Benefit, otherwise maintenance can’t be pursued.” | Child Benefit is often relevant to establishing a current qualifying child for ongoing maintenance. It is not a magic switch that wipes historic arrears. Ask CMS to separate the issues: (1) ongoing liability, and (2) historic debt. |
| “If the child is overseas, we can’t do anything.” | Overseas factors can affect future liability and jurisdiction, but historic arrears accrued under a valid calculation remain a debt. Cross-border enforcement may require different steps, not surrender. |
Golden rule: if you are told something that stops enforcement, ask for the policy/legal basis in writing.
3. CMS enforcement powers (what exists on paper)
CMS enforcement is supposed to be escalatory: if voluntary compliance fails, the tools become progressively stronger.
Administrative (non-court) tools
- Deduction from Earnings Orders (DEO): amounts taken directly from wages.
- Deduction Orders from bank/building society accounts: regular deductions or lump sums (where available).
- Move from Direct Pay to Collect & Pay: CMS collects and transfers, with fees.
Court-based tools
- Liability Order: confirms arrears as enforceable debt and unlocks stronger remedies.
- Charging Order: secures the debt against property.
- Order for Sale: in some cases, forcing sale to satisfy arrears.
- Disqualification from driving / passport: stronger sanctions (usually after liability order and further steps).
- Committal to prison: last resort; used rarely, but legally possible.
If none of these are being used, the key question is not “are there powers?” but why is CMS not using them?
4. Why enforcement fails in practice
Common failure patterns include:
- Cases “parked” with no active caseworker
- Over-reliance on promises of payment
- Reassessments and recalculations instead of enforcement
- Inconsistent advice between call handlers
- Failure to escalate after repeated non-payment
- Poor record-keeping (missing notes, unclear chronology)
- Delays that become normalised
Reality check: “We are busy” is not a lawful reason to stop enforcement. If inaction is causing hardship, push the matter into the complaints framework.
5. Historic arrears: do they ever disappear?
In most cases, no. Historic arrears remain enforceable unless there has been a lawful decision to write them off (which should be clearly documented) or the underlying calculation was set aside.
Even if:
- the child is now over 18,
- the case was previously closed,
- a new case is opened for ongoing liability,
- years have passed,
…the historic debt does not simply evaporate.
6. Education abroad & jurisdiction confusion
A frequent sticking point arises where a child continues education outside the UK or in a different jurisdiction. This can create confusion about what CMS can do going forward.
Key distinction: Jurisdiction and “qualifying child” status can affect future liability. They do not automatically cancel historic arrears that accrued under a valid calculation at the time.
If CMS attempts to conflate the two issues, insist that they deal with:
- Historic arrears (what is already owed), and
- Ongoing maintenance (whether liability continues now).
7. What you can do now (practical escalation steps)
Step 1: demand a full arrears breakdown
Ask CMS for:
- Total arrears owed
- Period covered (start/end dates)
- Payment history (what was paid, when)
- Enforcement actions taken (with dates)
- Any periods of inactivity (and reasons)
Step 2: move everything into writing
Phone calls are not a reliable evidential record. After every call, send a written follow-up confirming what was said and asking for confirmation/correction in writing.
Step 3: use the complaints route (properly)
CMS has an internal complaints process. If that fails, escalation can include the Independent Case Examiner (ICE) and, via an MP, the Parliamentary and Health Service Ombudsman (PHSO).
Step 4: ask for a specific enforcement action
Use direct language such as:
- “Please confirm which enforcement power is now being actioned and the target date.”
- “Please confirm why a liability order has not been sought, and the policy/legal basis for that decision.”
- “Please confirm what steps have been taken to trace assets/income and why those steps have not resulted in enforcement.”
Tip: “Please put that in writing” is often the fastest way to stop misinformation and trigger escalation.
8. Judicial Review: when CMS decision-making becomes unlawful
Where CMS repeatedly fails to act, misstates the law, or makes irrational decisions, a Judicial Review may be appropriate. This is not about re-arguing maintenance amounts; it is about the lawfulness of how CMS is making decisions (or failing to make them).
Judicial Review is not a casual step. But in entrenched cases, even a pre-action protocol letter can prompt rapid movement.
9. Simple flow diagram: from arrears to enforcement
CMS enforcement pathway (simplified)
If your case is stuck before meaningful enforcement begins, that is usually an administrative failure, not a lack of legal powers.
10. The emotional reality for litigants in person
This process is draining. It takes time, resilience, and organisation—while you’re already carrying the day-to-day cost of raising a child.
Being repeatedly told the wrong law is not just frustrating: it can be harmful. You are entitled to accurate information, lawful decision-making, and proper enforcement action.
Key takeaways
- Child maintenance arrears are a statutory debt.
- CMS has a wide suite of enforcement powers—including escalation tools.
- Delay does not automatically extinguish arrears.
- Misinformation is common; insist on written confirmation and policy/legal basis.
- Written escalation and complaints can shift “stalled” cases into action.
- In entrenched cases, Judicial Review may be appropriate where decision-making is unlawful.
Need help escalating a stalled CMS arrears case?
If you are owed substantial child maintenance arrears and enforcement has stalled—or you’re being given contradictory advice—JSH Law can help you regain control of the process.
Support can include: case audits, chronology building, enforcement escalation strategy, complaint drafting, and evidence organisation.
Contact JSH Law to discuss the next steps in your situation.
