Website of the UK government

Please note that this website has a UK government accesskeys system.

Public services all in one place

Main menu

Calculate child maintenance

Use the Child Support Agency calculator to work out how much child maintenance may be due.

How to use this service

To use the calculator you will need to know:

  • the non-resident parent's net weekly income
  • the number of children involved
  • the number of nights, on average, that the non-resident parent has the child(ren) for each year

Remember this website can only give you a rough guide to how much you may be asked to pay or might expect to receive.

Additional links

Local Directgov

Connect to your local authority and find out which online services they provide

PDF files

To view PDF files you need Adobe Reader. The program is freely available if you do not already have it

Access keys