Thank you for visiting the CMSAS Limited website. Please note, we are NOT the Child Maintenance Service (CMS). If you need to contact the CMS, the number for an existing case with the CMS is 0800 171 2345 and for a new case is 0800 988 0988 or you can go to their website here: CMSAS Limited consultants are specialists in the Statutory Scheme of child support, as administered by the Child Maintenance Service. We would like to make you aware that we are not the Child Maintenance Service (CMS). We are a private company that provide a chargeable service of support, guidance and advice to both Receiving and Paying Parents, with Child Maintenance issues, assessments, appeals, tribunals and all Child Maintenance matters pertaining to the CMS (Child Maintenance Service) and/or HMCTS (Her Majesty’s Courts and Tribunals Service), including where difficulties develop with the CMS and/or HMCTS.


We have compiled a list of useful downloads that you may require below…

Form UT1

Application for permission to appeal to an Upper Tribunal judge and notice of appeal for social security, child support, tax credits, housing benefit and council tax benefit cases.


Use this form to appeal a decision made by the Department for Work and Pensions (DWP) Child Maintenance Group.

Child Maintenance & Enforcement Commission: Special Payments Guide

The guide contains a description of the circumstances under which special payments can be made and provides advice on the considerative process, including methods of calculating payments.

CMS: Subject Access Request Form

Use this form to ask the Child Maintenance Service for data about yourself or someone else.

If you would like to arrange an initial consultation with us, please click here or select one of the options below.

Initial Consultation

We charge £125 (£150 inc. VAT) for an initial consultation.

Additional Consulting Hours

We charge £75 (£90 inc. VAT) for additional hours.