Child Benefit Calculator UK (2026/27)
This Child Benefit calculator helps you estimate how much you could receive for the 2026/27 tax year, and whether the High Income Child Benefit Charge (HICBC) may reduce or fully remove your entitlement.
It is designed for UK households who want a quick, practical estimate based on income, number of children, and common tax adjustments. If you are checking whether claiming is still worthwhile, or how much of the benefit you may need to repay, this tool gives you a useful starting point.
What this calculator includes
- Weekly, monthly and annual Child Benefit estimates
- Multiple children calculations
- High Income Child Benefit Charge (HICBC)
- Adjusted net income estimation
- Pension contribution and Gift Aid adjustments
How the Child Benefit calculation works
Child Benefit is paid per child, with a higher rate for the first child and a lower rate for additional children. This calculator applies those rates to the number of children and weeks claimed so you can see a weekly, monthly-equivalent and annual total.
It also estimates whether the High Income Child Benefit Charge applies. If the highest earner in the household has adjusted net income above the relevant threshold, some or all of the benefit may need to be repaid. The calculator uses the income and relief figures you enter to provide a practical planning estimate.
Why your result may be different
Your actual Child Benefit position may differ from this estimate because real-world tax situations can be more complex. Results often vary because of:
- Additional taxable income such as dividends, rental income or savings interest
- The exact type of pension contribution used, such as salary sacrifice or relief at source
- Other tax reliefs or deductions not included in the form
- Changes to HMRC rules, thresholds or benefit rates
Who this calculator is for
- Parents checking how much Child Benefit they may receive
- Higher earners assessing the impact of the HICBC
- Couples deciding whether to claim, keep claiming, or opt out of payments
- Households planning around key income thresholds
Child Benefit income examples
- Lower or moderate incomes may keep the full Child Benefit amount with no charge applied
- Households near the HICBC threshold may only repay part of the benefit
- Higher earners may still choose to claim, even if some or all of the amount is later repaid
These examples show why it can still be worth checking your position carefully. Small changes to income, pension contributions or Gift Aid can change how much Child Benefit you keep.
Important note
This tool provides estimates only and is not financial, tax, legal, welfare, or HMRC advice. For official calculations, use HMRC guidance or speak to a qualified professional.
Use the calculator above to estimate your Child Benefit and see how income changes could affect what your household keeps.