This free Child Benefit calculator shows exactly what a family gets: £27.05 a week for the eldest or only child and £17.90 for each additional child, using the current GOV.UK rates. Add children one by one and enter household income to see any High Income Child Benefit Charge automatically.
TL;DR · LAST REVIEWED 21 July 2026
- Enter each child to see the weekly, four-weekly and annual Child Benefit total using current GOV.UK rates (£27.05 eldest, £17.90 each additional child).
- Add household income to see the High Income Child Benefit Charge automatically, including the point where the charge cancels the payment out entirely.
- No cap on the number of children; the calculator updates live as you add or remove a child.
Worked examples: what different family sizes get (before any HICBC)
| 1 child | £27.05 / week | £1,406.60 / year |
| 2 children | £44.95 / week | £2,337.40 / year |
| 3 children | £62.85 / week | £3,268.20 / year |
| 4 children | £80.75 / week | £4,199.00 / year |
Source: GOV.UK
KEY FACTS
- Eldest or only child rate: £27.05 a week, £1,406.60 a year. Source: GOV.UK.
- Each additional child: £17.90 a week, £930.80 a year, no limit on the number of children. Source: GOV.UK.
- High Income Child Benefit Charge starts once adjusted net income passes £60,000, at 1% of Child Benefit per £200 over the threshold.
- The charge reaches 100% of Child Benefit at £80,000 adjusted net income, cancelling the payment out financially.
- New claims can only be backdated three months from the date HMRC receives them.
Try it: Child Benefit Calculator
How does the Child Benefit calculator work?
The calculator adds up the current published rates for each child: £27.05 a week for the eldest or only child, and £17.90 a week for every additional child, with no limit on how many children can be added. It updates the weekly, four-weekly and annual totals automatically as children are added or removed.
Add a child using the button, and the total updates immediately using the same two rates GOV.UK publishes for every family: one rate for the eldest or only child, and a lower rate for each child after that. There is no cap on the number of children a family can claim for, so the calculator lets you keep adding rows for as many children as apply. The weekly figure is the headline rate; the four-weekly figure is what actually lands in a bank account, since Child Benefit is paid every four weeks rather than weekly; the annual figure is simply the weekly rate multiplied by 52, which matches the exact yearly amounts GOV.UK quotes: £1,406.60 for an eldest or only child and £930.80 for each additional child. If a family's circumstances split, for example after a separation, each parent gets the eldest-child rate for whichever child lives with them, and this calculator can be run twice, once for each household, to see both sides.
How is the High Income Child Benefit Charge worked out?
Once the higher earner in a household has an adjusted net income above £60,000, one percent of the family's Child Benefit is repaid through the tax charge for every £200 of income above that threshold. At £80,000 or more, the whole amount is repaid, cancelling the payment out financially.
Enter one or both incomes and the calculator applies the same banding GOV.UK uses: for every complete £200 of adjusted net income above £60,000, one percent of the year's Child Benefit is clawed back through the charge. That reaches 100% once income hits £80,000, at which point the family receives the money throughout the year but repays the full amount through Self Assessment or the PAYE HICBC digital service, netting out to zero. If both parents or carers have income above the threshold, the charge falls on whichever one earns more, not on the total household income added together, so the calculator uses the higher of the two figures entered. Families in the fully-clawed-back band often still choose to claim and then opt out of receiving the payments, because claiming preserves the National Insurance credit that counts toward the State Pension for whichever parent is not working or earning below the National Insurance lower earnings limit. Opting out of claiming altogether forfeits that credit, even though it forfeits no cash either way once income is above £80,000.
Where do these figures come from?
Every rate in this calculator comes directly from the two published GOV.UK Child Benefit rates and the published High Income Child Benefit Charge thresholds, not a third-party estimate. Figures are checked against GOV.UK whenever the annual uprating changes them.
The eldest or only child rate and the additional child rate are both taken from the current GOV.UK Child Benefit page, and the £60,000 to £80,000 taper for the High Income Child Benefit Charge is taken from GOV.UK's own tax charge guidance. GOV.UK also publishes an official Child Benefit tax calculator that gives an equivalent answer for the charge specifically. Rates are uprated once a year; this page is updated to match whenever that happens, so the figures should always reflect the current tax year rather than a historic one.
RELATED GUIDES
DISCLAIMER
This calculator is for general information only and does not constitute financial, tax or legal advice. It uses the published GOV.UK Child Benefit rates and High Income Child Benefit Charge thresholds current at the time of writing; verify your own figures against GOV.UK's official Child Benefit tax calculator before making a decision. Kael Tripton Ltd is not authorised or regulated by the Financial Conduct Authority.
Frequently asked questions
How much Child Benefit will I get for 3 children?
Using current rates, three children come to £62.85 a week, or £3,268.20 a year: £27.05 for the eldest child plus £17.90 each for the second and third child. Add your own children to the calculator above to see the figure update instantly, including any High Income Child Benefit Charge that applies.
Does this calculator include the High Income Child Benefit Charge?
Yes. Enter either or both parents' adjusted net income and the calculator applies the same one percent per £200 taper GOV.UK uses between £60,000 and £80,000, showing both the charge and the net amount left after it.
Is there a limit on how many children I can add?
No. Child Benefit has no limit on the number of children a family can claim for, and this calculator lets you add as many as apply, each at the additional-child rate after the first.
Are these the current rates for this tax year?
Yes, the calculator uses the current published GOV.UK weekly rates. Child Benefit rates are reviewed in the annual uprating, and this page is updated whenever that changes them.
Does the calculator store or send my information anywhere?
No. The calculation runs entirely in the browser using JavaScript; nothing entered, including any income figures, is transmitted, saved or sent to this site or anyone else.
SOURCES
- GOV.UK, Child Benefit: what you'll get – accessed 21 July 2026
- GOV.UK, High Income Child Benefit Charge – accessed 21 July 2026
- GOV.UK, Child Benefit tax calculator – accessed 21 July 2026
- GOV.UK, Claim Child Benefit – accessed 21 July 2026