Pension Contributions and the High Income Child Benefit Tax Charge

Child benefit is a weekly payment made by HMRC to parents or guardians responsible for children under 16 (or under 20 if they remain in approved education or training). For 2026/27 (from 6 April 2026), the rates are £27.05 per week for an eldest or only child and £17.90 per week for each additional child. For a family with two children, this represents around £2,337 per year — a meaningful sum.

However, child benefit is clawed back through the High Income Child Benefit Tax Charge (HICBC) where either the claimant or their partner has an "adjusted net income" above £60,000. The clawback is complete at £80,000. For many families where one earner has income around the £60,000–£80,000 range, careful planning — particularly around pension contributions — can restore some or all of the child benefit entitlement.

How the HICBC Works

The HICBC applies to the higher-earner in a couple (or to a single claimant) where adjusted net income exceeds £60,000. The charge is calculated as 1% of the child benefit received for every £200 of adjusted net income above £60,000.

At £80,000 adjusted net income, the charge equals 100% of child benefit received — the benefit is fully clawed back. This means:

• Adjusted net income £60,000: no HICBC
• Adjusted net income £65,000: 25% of child benefit is charged back
• Adjusted net income £70,000: 50% clawback
• Adjusted net income £75,000: 75% clawback
• Adjusted net income £80,000 or above: 100% clawback

The HICBC was reformed from April 2024 (previously the taper ran from £50,000 to £60,000). The current £60,000–£80,000 band is broader, which means the per-pound cost of income in this range is effectively a steeper implicit tax rate — rather than the very high effective rate that existed in the old narrower band, the charge is now spread over £20,000 of income. However, the loss of child benefit still creates a meaningful effective marginal rate.

What Is "Adjusted Net Income"?

Adjusted net income is not the same as gross salary. It is calculated by taking your total income (salary, bonus, rental income, dividends, self-employment profit, interest), then deducting:

• Gift Aid payments (grossed up)
• Personal pension contributions (the gross value of contributions to personal or self-invested pensions)
• Trading losses

Crucially, pension contributions reduce adjusted net income. If your gross salary is £70,000 and you make a gross pension contribution of £10,000, your adjusted net income falls to £60,000 — taking you below the HICBC threshold and restoring full child benefit.

Salary sacrifice is treated differently. Under a salary sacrifice arrangement, your contractual salary is reduced before pension contributions are made. The reduced salary is your gross income for adjusted net income purposes — salary sacrifice contributions do not appear as a separate deduction because they are never part of your income in the first place. The effect is the same (income is reduced), but the mechanism is different.

The Income Range Where Pension Contributions Are Most Powerful

The financial reward for pension contributions in the £60,000–£80,000 adjusted net income range is particularly large, because each pound contributed does not just generate pension tax relief — it also restores a proportion of child benefit.

Consider a family with two children receiving £2,337 per year in child benefit, where the higher earner has £70,000 adjusted net income:

• Without pension contributions: 50% of child benefit (£1,169) is charged back through the HICBC
• Net child benefit received: £1,169

If this earner contributes an additional £10,000 to a personal pension (gross contribution):

• Adjusted net income falls from £70,000 to £60,000
• HICBC falls to zero
• Full £2,337 per year in child benefit is retained
• Plus: 40% higher-rate tax relief on the £10,000 contribution = £4,000 total tax saving (£2,000 via relief at source, £2,000 via self-assessment claim)
• Plus: £1,169 additional child benefit restored

The combined financial benefit of a £10,000 pension contribution in this scenario includes £4,000 in tax relief plus £1,169 in restored child benefit — a total of £5,169 on a £10,000 gross contribution. Expressed as an effective tax relief rate: over 50%. This is a powerful incentive.

Salary Sacrifice as a Solution

For employees, salary sacrifice is often the most administratively simple approach. Under salary sacrifice:

• The employee's contractual salary is reduced by the amount of the pension contribution
• The employer pays the equivalent amount directly into the pension
• Employer's National Insurance savings on the sacrificed amount can optionally be shared with the employee (passed into the pension or as cash)
• The reduced salary directly reduces adjusted net income for HICBC purposes

Unlike a personal pension contribution, where the higher-rate taxpayer must claim the additional 20% tax relief through a self-assessment return (or by writing to HMRC), the salary sacrifice reduction happens automatically. This avoids the need to file a self-assessment return solely for the purpose of claiming relief — though if the employee is already required to file (e.g., due to other income), claiming additional relief is straightforward.

Note that salary sacrifice arrangements must be genuine, documented contractual changes. An informal agreement with an employer is not sufficient. The arrangement must be in writing and must involve a permanent reduction in contractual salary (not merely a temporary sacrifice). HMRC guidance sets out the required structure.

Interaction with Scottish Income Tax Rates

Scotland has its own income tax rates and bands, which differ from the rest of the UK. Scottish taxpayers face a higher marginal rate (42%) on income in the higher band (approximately £31,140–£62,430 in 2025/26, subject to annual change). There is also an "advanced rate" of 45% on income between approximately £62,430 and £125,140.

For Scottish taxpayers, the value of pension contributions in the HICBC taper range is even higher: tax relief is available at the marginal Scottish rate, not the UK higher rate. A Scottish advanced-rate taxpayer contributing to a relief-at-source pension effectively receives 45% relief — though the mechanism requires careful checking, as relief at source pensions only automatically apply basic-rate relief, and the additional relief must be claimed through self-assessment.

Scottish taxpayers are still subject to the UK-wide child benefit system and HICBC rules — the £60,000 threshold is not adjusted for Scottish rates. This creates a slightly more complex interaction, but the principle is the same: pension contributions reduce adjusted net income and can reduce or eliminate the HICBC.

Administrative Requirements: Self-Assessment

If you or your partner receive child benefit and either of you has adjusted net income above £60,000, the higher earner must file a self-assessment tax return. The HICBC is reported and paid through the return.

Even if tax is collected entirely through PAYE, the HICBC is not collected through PAYE — it requires self-assessment. If you have not previously filed self-assessment returns, you must register with HMRC.

Alternatively, you can elect to stop receiving child benefit entirely, which removes the HICBC obligation but also forfeits the child benefit and, potentially, the NI credit for State Pension purposes that comes with child benefit registration. For most families in the £60,000–£80,000 range, it is financially better to claim child benefit and manage the HICBC through pension contributions rather than to stop the claim.

If you stop child benefit and later decide to restart, you can do so — but you will miss the NI credits and any child benefit for the interim period.

Families Near the £60,000 Threshold

For families where income fluctuates — commission, bonus, self-employment — the HICBC can catch people unexpectedly. A base salary of £58,000 plus a £5,000 bonus crosses the threshold. A pension contribution in the tax year in which the bonus is paid can prevent the HICBC from arising.

Planning around expected income and timing contributions accordingly — particularly in years with variable income — is an effective strategy. This requires tracking adjusted net income through the year, not just reviewing it retrospectively at tax return time.

How Global Investments Can Help

The interaction between pension contributions, income tax, and child benefit creates a planning opportunity that many families in the £60,000–£80,000 income range miss entirely. For higher-income families — particularly those with multiple children or incomes that fluctuate around the threshold — the financial benefit of structured pension contributions can be very significant.

Global Investments provides income tax and pension planning for individuals and families with complex income situations. Our advisers can:

• Calculate your adjusted net income and the HICBC exposure for the current year
• Model the financial benefit of pension contributions or salary sacrifice at different income levels
• Advise on pension contribution timing for clients with variable or bonus income
• Review salary sacrifice eligibility with your employer and structure the arrangement correctly
• Assist with self-assessment return preparation for HICBC reporting and higher-rate relief claims
• Provide cross-border analysis for internationally mobile families with UK child benefit exposure

This guide is for educational purposes only and does not constitute regulated financial or tax advice. Child benefit rates and HICBC thresholds are set by HMRC and are subject to annual change. Always consult an FCA-authorised adviser and your accountant before making planning decisions.