Navigating the £100,000 Childcare Cap: What NHS Consultants Need to Know

When working with NHS hospital consultants who are also raising young families, one of the most frequent concerns I hear relates to the £100,000 adjusted net income threshold for funded childcare. Crossing this line not only reduces your personal allowance but also results in the complete loss of up to 30 hours of funded childcare.

Understanding Adjusted Net Income
Adjusted net income is your total income, from all sources (including savings), minus allowable deductions such as pension contributions.

For example, a newly appointed NHS consultant without on-call commitments, and including the August pay increment, will typically earn a base salary of around £109,000. Deducting NHS pension contributions of £5,995 brings their adjusted net income to £103,000.

This immediately places them in the 62% marginal tax band. That’s because, for every £2 earned above £100,000, you lose £1 of your personal allowance. Between £100,000 and £125,070, this creates an effective additional tax charge of around £5,140 compared to retaining the full personal allowance.

In practice, this consultant may have only lost £1,500 of their personal allowance (costing an additional £624 in tax), but they will also lose entitlement to the 30 hours of funded childcare.

The Value of Funded Childcare
From September 2025, all children will be entitled to 30 hours of funded childcare per week. Although this only applies during term time (38 weeks of the year), most nurseries smooth this across 51 weeks, resulting in 22.35 funded hours per week.

At an average childcare cost of £8 per hour, this equates to:
• £178 per week saved
• Around £9,000 per year in reduced childcare costs

When combined with the Tax-Free Childcare scheme (where for every £8 you pay in, the government adds £2, up to £2,000 per child per year), the overall support can make a meaningful difference. For many families, these benefits rank just behind mortgage or rent in terms of household financial impact.

A Case Study
Let’s consider an NHS consultant in London with additional income from on-call duties:
• Adjusted net income: £111,743 (August 2025)
• Additional tax from tapered personal allowance: £2,466.33
• Lost 30 hours funded childcare: ~£9,000
• Lost Tax-Free Childcare top-up: £2,000

In total, exceeding £100,000 has cost this consultant over £11,000. Their post-tax pay rise amounted to just £5,636, meaning they are £5,634 worse off than if they had remained under the threshold.

Options to Reduce Adjusted Net Income
So, what can an NHS consultant do to remain below the £100,000 threshold? There are several pension-related strategies worth exploring:

1. Early Retirement Reduction Buy Out (ERRBO)

Within the 2015 NHS Pension Scheme, retiring early results in a reduction to your pension (e.g., retiring at 65 instead of 68 reduces it by 14%). ERRBO allows you to buy out up to three years of this reduction.

• For a 41-year-old, this would cost around 5% additional contributions, or £5,587 per year
• Contributions are fixed, offering little flexibility
• On its own, ERRBO won’t reduce adjusted net income below £100,000

2. Additional Pension Purchase

It’s possible to purchase up to £8,721 of additional NHS pension per year at retirement.

• For a 41-year-old, this requires contributions of around £7,325 per year
• Payments can be made monthly or annually
• This reduces adjusted net income but, even when combined with ERRBO, it isn’t sufficient to bring income below £100,000

3. Personal Pension Contributions (Most Flexible Option)

A personal pension offers greater control and tax efficiency:
• Paying in £800 per month reduces adjusted net income by £12,000 per year (as personal contributions are grossed up at 1.25x for tax purposes)
• This immediately brings income below £100,000, protecting childcare benefits.• Assuming a modest growth rate of 2.9%, this could build a pension pot of around £436,000 by age 65

• Contributions are flexible—allowing you to increase, decrease, or pause payments as circumstances change.
• The pot can be accessed flexibly in retirement—via a tax-free lump sum, income drawdown, or annuity.

Final Thoughts
While these strategies can help manage your adjusted net income and retain valuable childcare benefits, they should never be considered in isolation. Pension contributions, childcare support, and taxation are all interlinked with your wider lifestyle and retirement planning.

A holistic financial plan—tailored to your goals and circumstances—ensures you make the right decisions both now and for your future.

If you have a question about funded childcare and the 100k threshold, please reach out for an informal discussion about your circumstances.

The value of pensions and investments and the income they produce can fall as well as rise. You may get back less than you invested.