Hi Possible_dad
Thank you for your post. I am William the Child maintenance Options consultant. If the person who is asked to pay maintenance denies that they are the parent, the Child Support Agency (CSA) classes this as a disputed parentage case. If a claim is made to the CSA, they will ask the person named if they accept that they are the child's parent. If they deny it, they will look into the reasons why and ask them to provide evidence to support their denial. They will not ask them to pay child maintenance until the dispute has been resolved. You can find out more about what happens when someone denies they are the parent of a child online at www.gov.uk/child-maintenance.
The CSA do not backdate new claims. If an application is made with the CSA, your responsibility to pay will start from around the time the CSA contact you. If the child's mother had previously opened a case fifteen years ago with the CSA then they may be backdated payments owed.
If you are the child father and you and the child's mother are amicable you may wish to try and work out child maintenance between yourselves. This is known as a family-based arrangement and is where you can agree who will provide what for your child. It can include money and other kinds of support, for example providing clothing. Family-based arrangements are not legally binding, however, they can be quick, easy and flexible to change if your circumstances do.
We have useful tools and guides on our website like our family-based arrangement form that is not a legally enforceable document but may put your agreement on a more formal basis. You may also find our Child Maintenance Decision guide: Talking about money helpful. It can help you to work with your child's mother to agree a suitable arrangement between yourselves. You can print out a copy of these leaflets at www.cmoptions.org.
You may wish to use our online calculator via the following link: http://www.cmoptions.org/en/calculator/ to see how much maintenance you may be required to pay if you were to use the services of the CSA. You can use this estimated figure as a starting point in making a family-based arrangement.
To find out more about how Child Maintenance Options can help you visit www.cmoptions.org or call us free on 0800 988 0988 between 8am and 8pm Monday to Friday or 9am and 4pm on Saturday.
I hope this helps.
William