UK Child Maintenance Calculator
Coming soon · #22CMS percentages with shared-care reductions for overnight stays, explained plainly.
About this tool
Planned: a UK child maintenance calculator using the Child Maintenance Service percentages of gross weekly income (12% for one child, 16% for two, 19% for three or more) with reductions for shared-care nights. Listed honestly: the calculation is simple and rivals are thin, but there is almost no legitimate affiliate fit, so this is a public-service style tool with low commercial expectations.
Searches this tool answers
People find this tool by searching for “child maintenance calculator uk”. Related searches it is built for:
- cms calculator with shared care overnight stays
- child maintenance calculator self employed
- child maintenance for 1 child how much
Frequently asked questions
How does the CMS calculate child maintenance?
As a percentage of the paying parent's gross weekly income: 12% for one child, 16% for two, 19% for three or more, then reduced for shared-care overnight stays (from 1/7 up to 50%).
Does this replace the official calculator?
No — the GOV.UK/CMS calculator is the official benchmark. This tool explains the formula and shows worked examples.
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