Child Support in England & Wales: A Parent's Guide

In short: England & Wales does not use a court-set child support order in most cases. Instead, parents either arrange maintenance privately (a family-based arrangement) or use the government's Child Maintenance Service (CMS), which applies a statutory formula based on the paying parent's gross weekly income, adjusted for shared care nights and other children in their household.

This is an educational overview written for parents, not solicitors. It isn't legal advice. For anything beyond general understanding, talk to a family law solicitor or use the GOV.UK Child Maintenance Service guidance.

What the Child Maintenance Service generally provides

The Child Maintenance Service, operating under the Child Support Act 1991 (as amended), calculates and, if needed, collects child maintenance between separated parents. It replaced the earlier Child Support Agency. CMS uses a standard formula rather than case-by-case judicial discretion, based on the paying parent's gross weekly income as reported by HMRC.

Important terminology

• Paying parent: the parent who pays child maintenance (sometimes the "non-resident parent").
• Receiving parent: the parent who receives it, usually the parent the child mainly lives with.
• Gross weekly income: the paying parent's income before tax, the base figure CMS uses, taken from HMRC records rather than self-reported figures.
• Family-based arrangement: an informal, private agreement between parents on maintenance, with no CMS or court involvement and no automatic enforcement.
• Direct Pay: CMS calculates the amount, but the paying parent pays the receiving parent directly.
• Collect and Pay: CMS collects and passes on the payments itself, for a fee on both sides.

How the Child Maintenance Service calculates support

CMS matches the paying parent's gross weekly income to one of five rate bands:

• Nil rate: broadly for a paying parent with very low or no income (for example, under roughly £7 a week), a student, a prisoner, or in certain other circumstances, no maintenance is due.
• Flat rate: a fixed low weekly amount, generally applying to lower income bands or where the paying parent receives certain benefits.
• Reduced rate: a fixed amount plus a percentage of income above the flat-rate threshold, for a middle income band.
• Basic rate: the main band, calculating a percentage of gross weekly income, roughly 12% for one child, 16% for two children, and 19% for three or more, after first reducing income to reflect any other children living in the paying parent's household.
• Basic plus rate: for higher earners, a lower percentage applies to the portion of income above a set threshold, up to a capped maximum amount of income considered.

Shared care adjustment

If the child stays overnight with the paying parent regularly, the maintenance amount is reduced on a sliding scale based on nights per year, roughly: a small reduction from 52 nights, increasing at higher thresholds, up to a reduction of around half (plus a further small deduction) once care is close to equally shared. This means the actual parenting schedule has a direct, material effect on the maintenance figure, not just an informal understanding of "who has the kids more."

Family-based arrangements vs. CMS

Parents in England & Wales are not required to use CMS. A family-based arrangement, a private agreement on amount, frequency, and method of payment, is common and can be simpler and more flexible than going through CMS. The tradeoff is that it isn't enforceable in the same way, if one parent stops paying, the other has no built-in mechanism to compel payment without then applying to CMS or, in some circumstances, court. Many parents start with a family-based arrangement and move to CMS only if it breaks down.

Applying and enforcement

To use CMS, either parent applies through the government's child maintenance service, which explains the options before requiring a formal application. Once a calculation is made, parents can choose Direct Pay (CMS sets the amount, parents handle payment between themselves) or Collect and Pay (CMS collects from the paying parent and passes it to the receiving parent), which carries fees on both sides.

If a paying parent falls behind, CMS has a range of enforcement tools: deducting maintenance directly from wages or certain benefits, deducting from a bank account, and, in more serious or persistent cases, applying to a court for further enforcement action, which can include disqualifying a driving licence or passport. Missed payments should be reported to CMS directly so enforcement action can begin.

Common questions

Does 50/50 care mean no maintenance is owed? Not automatically. The shared-care adjustment reduces the amount as overnight care becomes more equal, and it can reduce liability significantly, but an income gap between parents can still mean maintenance is due even with close to equal care.

Can maintenance be back-dated? Generally CMS calculations take effect from when the application was made or the review requested, not retroactively before that, which is part of why applying or requesting a review promptly after a change matters.

What if we disagree with the CMS calculation? Either parent can ask CMS to reconsider (a mandatory reconsideration), and if still unresolved, appeal to a tribunal.

Practical considerations

Because the shared-care nights figure directly changes the maintenance calculation, disputes over the actual parenting schedule can end up being disputes over the maintenance amount too. Keeping an accurate, up-to-date, and easy-to-evidence record of the actual overnight schedule is worth doing regardless of whether you're using a family-based arrangement or CMS. For the arrangements that shape the underlying parenting time, see the England & Wales custody guide.

Official resources

• GOV.UK: How Child Maintenance Is Worked Out
• GOV.UK: Child Maintenance Service
• Child Support Act 1991 (legislation.gov.uk)

Related OnePage resources

• Child support calculator and guideline finder
• What is a parenting plan
• Custody schedule generator

Related England & Wales pages

• England & Wales hub
• England & Wales custody guide