CSA Meaning: What the Agency Was and What Replaced It
Part of: Child Maintenance Lawyer
CSA stands for the Child Support Agency, and the CSA meaning most people need today is a simple one: the agency no longer runs child maintenance cases. The Child Maintenance Service took that job over, and GOV.UK now sends anyone who asks for the old agency straight to the new service. So if a letter, a form or a well-meaning relative has told you the CSA will sort this out, that advice is out of date. Our child maintenance lawyers assist and advise parents on both sides of that change.
This page covers England and Wales. The same statutory scheme runs in Scotland, with a few differences, and Northern Ireland has its own service (GOV.UK: eligibility).
Reviewed by: Hannah Overton, Complex Children Specialist & Client Support, Kabir Family Law
Key takeaways
- CSA means the Child Support Agency. It ran the statutory schemes set up under the Child Support Act 1991, s.1, which made each parent responsible for maintaining a qualifying child.
- A different service handles it now. The Child Maintenance Service opened to all new applicants on 25 November 2013 (DWP announcement).
- DWP closed the old cases on purpose. It began telling clients their case would close in June 2014, and confirmed in 2017 that liabilities in the remaining cases would end by 31 December 2018.
- Money owed did not vanish. Remaining agency debt moved to the newer service for collection, which is why old letters still arrive.
- The law never used the name. The Child Support Act 1991 gives the powers to the Secretary of State, not to any agency, so the label changed while the statute stayed put.
- Court is not usually the route. Where the Secretary of State could make a calculation, a court cannot make, vary or revive a maintenance order (s.8(3)).
What does CSA stand for, and what is the CSA meaning?
CSA stands for the Child Support Agency. It was a government agency, not a court and not a charity, and it worked out how much a separated parent had to pay towards a child’s living costs. It opened in 1993 under the Child Support Act 1991, and for two decades its name became shorthand for the whole system.
Here is a detail almost nobody mentions. Search the full text of the Child Support Act 1991 and the words “Child Support Agency” do not appear once and neither did the CSA meaning. The Act gives every power to the Secretary of State, and the agency was only the office that used them. That is why the letters on your paperwork could change without a single line of the Act changing, and it is the first clue that the CSA meaning you remember is a brand rather than a legal body.
Two schemes ran under that name. The first began in 1993 and the second in 2003, each with its own way of working out payments. DWP still calls them “the previous 1993 and 2003 child maintenance schemes”, and the CSA meaning of that phrase is simply: the rules before this one.
CSA meaning today: who runs the scheme now?
The Child Maintenance Service, part of the Department for Work and Pensions, now runs the statutory scheme. It works out an amount, can arrange payments, can act when a parent does not pay, can settle arguments about parentage and can try to trace a parent whose address is unknown (GOV.UK).
You can see the handover in the web address itself. Typing gov.uk/child-support-agency lands you on the Child Maintenance Service guide instead. So what is the CSA now? In practice the CSA means one of three things: an old case that has closed, money still owed from one, or simply the wrong name for today’s service.

How did the CSA end, step by step?
The change was gradual, which is exactly why so many parents missed it. These are the public milestones.
- 1991: the Act arrives. Parliament passes the Child Support Act 1991. Either the person with care or the non-resident parent may apply to the Secretary of State for a maintenance calculation (s.4(1)).
- 1993 and 2003: two agency schemes. The agency opens and later runs a second scheme alongside the first, with different rules for working out payments.
- 2012: a new scheme arrives. DWP introduces the Child Maintenance Service to run all child maintenance under the 2012 statutory scheme.
- 25 November 2013: the door opens. The newer service “opens to all new applicants today”, after a phased rollout that started with the largest families.
- June 2014: closure letters start. In DWP’s own words, “in June 2014 we started telling CSA clients that their CSA case will close”. Fees and collection charges begin in the same month.
- 26 October 2017: the end date is confirmed. The closure programme had to end liabilities in remaining cases by the end of 2017; after a consultation, DWP confirmed a new end date of 31 December 2018, effective from 26 October 2017.
- 2021: the statistics stop. DWP publishes the final agency statistics, and remaining debt moves to the newer service for collection.
Nobody sent a single national letter saying “the CSA has gone”. The name simply fell out of use, one case at a time, which is why it survives in conversation years later.
What an old CSA case means for you now
Closing a case ended the ongoing liability. It did not wipe out what parents already owed. The Child Maintenance Service took over the arrears from the old schemes, which means a parent can still receive contact about a case that stopped years ago.
- Paying parents. A closed case is not the same as a cleared balance. Ignoring a statement is the quickest way to turn an old figure into enforcement.
- Receiving parents. Closure invited you to make your own arrangement or apply to the newer service. If neither happened, there may be no live calculation at all.
- Either of you. The reference number on your letters tells you which service holds the case. That single detail decides who you speak to and which rules apply.
If you disagree with a decision on a live case, there is a route for that: ask for a mandatory reconsideration within 30 days, then appeal. Our guide to the child maintenance tribunal walks through what the panel looks at.
CSA meaning for your case: which scheme are you on?
Pick the line that sounds like you, then tick what is already true. Nothing here is a calculation, and your answers stay on your screen.
There is no score here. Anything you cannot tick yet is worth raising before your next payment date.
The calls a checklist can’t make for you
- Whether an old balance is still yours to deal with, and what happens if you say nothing.
- Whether the statutory route suits your family at all, or whether an agreement between you would work better.
- When the family court still has a part to play, and when it does not.
Those answers turn on your own facts, and they are far easier to sort out before a balance grows or a deadline passes.
Book a free initial consultation
One of our specialists will give you initial advice on your situation. It is a conversation, not a document service: it does not include drafting or reviewing paperwork.
What the agency could never decide
Neither the old agency nor today’s service ever covered everything. Where the Secretary of State could make a calculation, no court may make, vary or revive a maintenance order for the same child and parent (Child Support Act 1991, s.8(3)). Outside that box, the family court still matters.
- Very high earners, where the statutory formula runs out. See our guide to top-up orders above the maximum calculation.
- Support for a disabled son or daughter who is no longer a child for these purposes, covered in maintenance over 18 for disabled children.
- School fees, lump sums and property for a child, which sit under Schedule 1 of the Children Act 1989.
A free initial consultation is a conversation with a specialist who gives you initial advice on your circumstances. It does not include drafting or reviewing documents. Before the call, it helps to have your letters, any reference number and a rough idea of the other parent’s work situation.
Frequently asked questions
What does CSA mean on a letter about your case?
CSA means the Child Support Agency, the office that used to run statutory child maintenance. On a letter it usually points to an old case or to money still owed from one, because the agency stopped taking on new work long ago. Today’s letters come from the Child Maintenance Service instead, so check the name and reference number at the top before you reply.
Does the CSA still exist?
Not as a live service you can apply to. DWP began closing its cases in June 2014, confirmed in 2017 that remaining liabilities would end by 31 December 2018, and published the final agency statistics in 2021. The name survives in conversation and on old paperwork, but the Child Maintenance Service does the work.
Can I still apply to the CSA?
No. Every new statutory application now goes to the Child Maintenance Service, which opened to all new applicants on 25 November 2013. GOV.UK redirects the old agency address to the new service guide. You can also agree an arrangement privately with the other parent, which GOV.UK sets out as the first of the two options.
What happens to arrears from an old case?
Closing a case did not write them off. Debt left on the old schemes moved to the Child Maintenance Service for collection, and DWP publishes separate figures on collections and write-off for those arrears-only case groups. If someone is chasing you for an old balance, or the other parent owes you one, take advice before you agree anything.
Did the CSA cover the whole of the UK?
Not quite. DWP runs the statutory scheme across Great Britain, so Scotland shares it, with differences of its own: a child over 12 can apply there in their own right. Northern Ireland runs its own Child Maintenance Service, with a separate phone number and a separate postal address.
Still getting letters about an old case? Get advice before your next payment date
An old balance does not fade away, and a case that closed years ago can still reach you. Equally, a parent who assumed the statutory route was running may find there is no live calculation at all. Book a free initial consultation and one of our specialists will give you initial advice on where you stand.
Book a free initial consultation or call 0330 094 5880
You can also return to our guide for child maintenance lawyers.
General information about the law in England and Wales, not advice on your circumstances.
Expert Tip
Parents still say CSA when they mean the whole system, and that habit costs time. Before you ring anyone, find the most recent letter and read the name and reference number at the top. That tells you which service holds the case, which rules apply and whether a balance is live. Starting with the right office is the difference between a five-minute answer and a month of phone transfers.
Iblal Iqbal, Partner & Family Law Strategist







