When Things Go Wrong with Child Maintenance
The Child Maintenance Service (CMS) helps separated parents arrange financial support for their children. These payments can help with essential expenses, from school uniforms to household bills.
Most cases run smoothly, but problems do arise. A calculation might seem wrong, payments may not arrive, or you might feel the CMS has handled something poorly. When this happens, you have options: you can complain, ask for a mandatory reconsideration, or appeal to an independent tribunal.
Each route serves a different purpose, and knowing which one applies to your situation will save time and frustration.

Answer a few questions about your situation and get a clear summary of your child maintenance rights and options.
Try our Child Support Rights Checker free, here on this site →Making a Complaint
A complaint is the right step if you are unhappy with how the CMS has treated you or handled your case. This could include poor communication, unreasonable delays, staff behaviour, or administrative errors that caused problems.
Start by contacting the team that normally deals with your case. Many issues can be sorted out at this stage with a phone call or message through your online account. If the problem is straightforward, it may be resolved immediately.
When the team cannot fix things directly, your complaint will be passed to a dedicated complaints team. They aim to respond within 15 working days, though complex cases can take longer. You should receive updates throughout the process.
If you remain dissatisfied after this, you can escalate to the Independent Case Examiner. This free service reviews complaints about the CMS and certain other government agencies, but will only consider your case once the CMS's internal complaints procedure has been fully exhausted. The examiner can recommend remedies, including apologies or compensation for poor service.
You can also ask your MP to refer your case to the Parliamentary and Health Service Ombudsman once you have exhausted other routes, though this is not guaranteed to influence the outcome.
Some families also find mediation helpful for resolving ongoing disputes about child maintenance arrangements, either before or alongside formal processes.
Your situation may be slightly different. ask a question below ↓ and our editorial team will reply with our advice.
Challenging a Decision: Mandatory Reconsideration
If you believe the CMS has made an error in calculating maintenance or reached the wrong decision on your case, a complaint is not the right route. Instead, you need to request a mandatory reconsideration.
This is a formal review of the decision by a different CMS officer. You must request it within one month of receiving the decision letter. Extensions may be granted in some circumstances, but these are not guaranteed and usually require a valid reason or new evidence.
When making your request, explain clearly why you think the decision is wrong. Include any evidence that supports your position, such as payslips, bank statements, or documents showing your living arrangements. The more specific you can be, the better.
The CMS will look at the case again and send you a mandatory reconsideration notice explaining whether the original decision stands or has been changed.
Appealing to a Tribunal
If you disagree with the outcome of the mandatory reconsideration, you can appeal to the First-tier Tribunal (Social Security and Child Support). This is an independent body, separate from the CMS.
You will need to submit your appeal within one month of receiving the mandatory reconsideration notice. The tribunal will consider your case based on the evidence and the law, and you can submit new evidence that the CMS did not previously consider. The tribunal can change the CMS decision if it finds an error was made.
While appeals are free, some individuals choose to seek legal advice or hire a solicitor given the complexity of the process. Citizens Advice and other organisations can provide guidance on preparing your case.
Tribunal hearings may be held in person, by phone, or by video. In some cases, the tribunal will make a decision based on paperwork alone, without a hearing.
For current information on time limits, forms, and procedures, check GOV.UK. The rules can change, and official sources will have the most accurate details for your situation.
They decided that as his wage had increased, that he should pay more. They notified him and he said he wanted to make a direct payment as opposed to take from wages. I asked for it to come from wages because I knew he had no intention of paying. They said they had to give him a chance.
While this was going through, the CSA's attachment order was still in place. Understandably he did not want to pay any additional money until that was cancelled. CSA said they had sent the appropriate paperwork through and it should have been cancelled. CMS said they didn't have the paperwork through to cancel it. Eventually it was cancelled and CSA gave the money they collected to CMS. I was told by CSA the money was to come to me, CMS gave it to him. Over £2000. After weeks of chasing I received £800 and he was not making any regular payments.
After months of messing around, I asked CMS to deduct payment from source. They did eventually get something in place, however it was for the same amount and then they deducted their fees from it. I contacted CMS and complained. I was robbed off with 2 week investigation which found I received the correct amount. I questioned again if I should be paying his fees, was told no. Another 2 week wait and no-one got back to me. I called again and was told no I shouldn't be paying and was left in limbo again while waiting for a case handler to call me back. Then all payments stopped. I rang and again a case handler would get back to me.
Before the case handler could call me back, my daughter received a message from his sister saying tell your mother she won't be getting another penny from your dad, he's left the country. I informed CMS, who insisted they had no knowledge and would investigate. Months pass and the feedback I received was that they believed he was still in the UK. I asked for the fees I paid back and was told it should be returned and needed authorising. It never happened and I gave up trying to contact them.
Today I received my yearly statement through reminding me that my children are owed thousands of pounds and that the CMS had sent the paperwork to his address, which we know he doesn't live at anymore. I have issued a complaint through the online service but once it was submitted a message appeared stating that due to Covid 19, complaints are not being routinely looked at and someone will be in touch as and when there is time. I am frustrated and let down by the system. He is never go to pay. The best they could do is return the fees and freeze the account until he is located. They yearly reminder that we've struggled without help is seriously damaging my mental health.
Since August payments have been eratic and varied and in 3 separate months I haven’t received a payment at all.
When chasing the payments the CMS have been continually unhelpful, obstructive and provided inconsistent information.
However it appears that on the months I haven’t received a payment the CMS have withheld my payments despite receiving them from the employer. It appears that the employer pays a bulk payment to the CMS each month as he has several employees who have deduction of earning orders. If there is an issue with any of the payments that is paid in the bulk payment they won’t realise anyone’s payment until it is sorted. So my payments have been withheld for long periods of time because there is an issue with a payment on another case that is totally unrelated to my case. I am currently pursuing another complaint and I have informed my MP about this ongoing issue. The CMS are currently withholding a payment they received from the employer nearly 4 weeks ago and they won’t explain why or release my payment.
It’s a joke!!!!
After a few days of confirming with their legal team about whether or not they can pursue a claim they contacted me with their decision. Not long after that they sent me a calculation of what I will be receiving from then on I have received nothing. The adoptive parent requested a mandatory reconsideration a week before the first payment was due. This was on the 5th of March that I got the news but they told me he should still pay until they complete their investigation. He has not paid and another payment has gone unpaid and cms still tell me they're waiting on more evidence to come in. He is getting away with not paying and cms are happy to take their time with my case. 2 months of them doing a mandatory reconsideration is a joke as his wage is not different so what can I do to get my money?
He has our son 2 nights a month.
He also doesn't actually travel in the varnhes told the CSA he drives down in.
I appealed the decision and they said there was.kot enough evidence to support my claim however I can't see jowy ex has evidence to say different. I have a picture of him in his work car picking up my son and also a video of him stating he's in his work car. His work pay the petrol for this car. So effectively I'm 35 a month short to pay for petrol costs he doesn't pay for.
I have to now go to a.tribunal if I want to appeal again. Can I have some advice on the best way to state my case please. I'm not sure where to start.
I have always maintained payments each month, I received a letter from CSA for non-payments, however I sent proof of payments via the CSA Client Portal. Therefore, I can't understand on what grounds CSA sent deduction from earnings order (DEO) to my employer. I received 2 letters dated 23rd November 2018 from CSA about issuing of DEO
When I called CSA I was told by the gentleman I spoke with that the DEO was sent to my Employer due to non-payment of child support since June 2018, he acknowledge receipt I sent of all my Bank receipts confirming Payments into each of the kids bank account and further stated that the Children mother accepts the payments are for child support, however because I paid the money into the Kids account and not the Mother accounts, he doesn't accept those payments hence the reason for the DEO.
Furthermore, a previous child support case that was cancelled by Children Mother in 2012 which she obtains a Court order 2009 without my Knowledge of the case for the sum of £9,000. CSA has brought forward and included in DEO. From speaking to a Elaine of CSA I was told that if a case is cancelled then there should be no money owing and such balance should not be brought forward into a new case.
The DEO should have never been sent to my Employer as I did not stop or refuse to make child support payment. This is causing me great financial burden and I am unable to support my other 3 Kids, it is not fair for 1 Mother to get £540 per month and the other 3 Mother gets nothing.
I made numerous phone calls to CSA since December 2018 and each time I am told they will ask the person dealing with the case to call me back. This has never happened
Do you remember all the protests that was done many years ago back in 1990s. Well here we go again.
Oh and some people who have arrears from many years ago have received letters to say due to circumstances they are cancelling their arrears. Well I have not
Well I am now semi retired so what happens now. I am sure they are hoping I live into my 100s so they can continue with this mess
That is outrageous! He has around £760 outgoings and this will bankrupt him, I am currently on benefits due to work being quiet at this time of the year and because we have a spare room for the two little ones we wont be getting any HB due to bedroom tax. So after UC I wont even be able to cover my own rent. (500pcm). And he will be -£20 due to this incorrect calculation off a job he had over 2 years ago.
We have appealed and they just recalculated it the same again. First he will loose his car and because he will loose his car he will then loose his job and then we will loose the house making us homeless!
Please tell me why on earth calculations are not taken from current earnings?
We have been trying to start the appeal process for the last 8 months. Should I contact someone higher?
I have complained to the CMS in writing four times since April 2018. None of my letters are responded to, and they continue to terminate my calls or refuse to put me through to the complaints resolution team. In desparation, I contacted my MP and the CMS provided the wrong date to the MP in relation to my original complaint.
This is an organisation that applies broken policy and broken procedures with total disregard to what is affordable, and its staff hide behind these. As background I provide for three step children through my second marriage with no significant financial contribution from their father. Something is wrong.
Currently waiting for CMS Tribunal date. Judge has sent ex a direction to provide all audited business accounts, plus all bank statements both joint & sole within 28 days. Letter came from Tribunal service that he’d written telling the judge that he would supply the financial information the day before or on the day of the tribunal because he didn’t want me to see his finances. What happens if he ignores the judge’s direction? Personally I couldn’t give a flying fart about his finances I just want him to pay what’s fair & proportionate for his children.
Does that mean Court order still stand for older child until age 18?
or is Court Order discharged?
I have been paying for 1 child for the last 18 years through csa, CMS took over this month and the payment has more than doubled, my daughter is 18 at college and working, should I still pay if she's working as well as college, it don't seem right
Now he has moved money from business accounts to let on he has very little, the joke of all this is I’m being threatened with court because he wants to send daughter to private school. It’s all a joke, where is the help when needed because it’s not happening for my daughter.
At the moment I am working a lot of extra days in order to save for a mortgage deposit. Does this mean that when they reassess my case in a year time they will think this is now my usual yearly earnings? If so will I be able to appeal against it if I have proof that I am earning less ??
Please help
I've been asked to attend a meeting and don't know what to expect? Is it advisable to have a lawyer. I have record of what my ex earns he is opening a pub currently paid for lease and refurbishment and has three flats in good areas two are rented. He resfused to put in accounts to CSA and says now he no longer works in the oil industry his income is Nil CSA have disputed this. I don't know I expect to do I haven't had any papers regarding is contra statement. He stop paying me in Bec 16 yet seems to live a lavish lifestyle for someone with NIl. Do I really need a lawyer? I don't qualify for legal aid so it's more money I don't have but I want to be proper armed. Alll I want is what my son is due. Can you advise? What do they do? Do they assess my income too. He does also pay school fees but this is in our a divorce agreement and quite frankly I'd rather eat and heat out our house that put my son to a private school.
Thanks
Need help!
My partner has his children 2 nights one week, 4 nights the next week , he has often asked for another night but the ex won't allow another minute over the allocated time , she has now gone behind our backs and claimed CSA , at £414 per month for 2 children , I also have 2 children who live with us . We are really struggling to understand why a parent with more willing than anyone I know to have his children more would have to pay her that much money when they have the same outgoing costs for the children. She does nothing with them , my partner is never at home when he has them but unfortunately this will have to stop if he has to pay her this money ,
Please help !
The only thing I can do now is to go to tribunal and I'm scared because I don't know what to do. Can anyone help? I have these questions
- I'm disabled and cannot work. Even though I have been the major career for my daughter,,will I have to repay my ex partner 5 years maintenance?
- What evidence do I need for the tribunal?
- How much would legal representation cost and/or help?
HELP!!
PLEASE.
Is there anything i can do about this as how can a household who works be worse off than a household who doesnt?
The truth is he has been self employed since she was born, has been able to buy a house, choose where he works, live a luxurious lifestyle, own a van and a car etc
Meanwhile I have cared for & brought up my Daughter, limiting my job choices, still can't afford to learn to drive / run a car, and never been able to get a mortgage due to inconsistent small payments to support her which has in affected my credit rating etc.
Her Father has tried to evade his responsibility by fiddling books for all his businesses over the last 16 years, his most recent franchise started 9 or 10 years ago and the CSA have been brushing off a reassessment until now.
Would I be able to raise this at the tribunal or would I have to pursue retrospective payments through the courts myself?
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