The higher-earner childcare gap: who the £100k tax trap leaves behind

Most childcare support in the UK comes with an income limit, and at £100,000 it's a hard stop. Cross that line by a single pound and a family loses almost all of it at once — not a little, nearly all. The parents who hit that wall are often senior, experienced and hard to replace. Here's how the gap works, and how you can close it.

Key takeaways

• Cross £100,000 and the main childcare support stops. It's a hard cliff, not a gentle taper — a pound over the line can cost a family thousands.
• The £100,000 test is per parent, not per household. A single earner on £101,000 loses everything a couple earning £99,000 each keeps.
• These are usually your senior, experienced, hard-to-replace people — and the ones the system has decided to help the least.
• A workplace nursery partnership is uncapped and available above £100,000, so it reaches exactly the parents who've been left out.

What is the £100k childcare tax trap?

Short answer: once either parent earns more than £100,000, the family loses Tax-Free Childcare and the funded hours meant for working parents.

Below the line, working families get real help: funded hours for children from nine months up. The one part that survives is the universal 15 hours for three- and four-year-olds, which everyone gets regardless of income — but for a child under three, that means no funded support at all.

Why one salary over £100k costs a family more than two just under it

Short answer: because the £100,000 limit applies to each parent individually, not to the household.

This is the part that catches people out. If one parent earns over £100,000, the whole family loses its entitlement — no matter what the other parent earns, or doesn't. But a couple earning £99,000 each keeps everything, on a household income of £198,000.

So the system can leave a one-income family on £100,000 worse off, after childcare, than a two-income family on nearly double. It isn't a rule most parents know about until they're the wrong side of it — often after a promotion or a bonus tips them over.

Why it's an employer's problem, not just a parent's

Short answer: because the tax trap falls right where a lot of your experienced people sit.

The £100,000 mark tends to line up with senior, mid-career talent — people who are expensive to replace and slow to rehire. What we hear from HR teams is that this cohort does the maths: a second income, or a return from leave, that barely clears the cost of childcare. Some step back. Some go part-time. Some move to an employer who helps.

What employers can do about it

Short answer: offer a benefit that isn't capped at £100,000.

The workplace nursery partnership is the clearest lever. It lets employees pay nursery fees out of gross salary, before tax and National Insurance, saving a parent up to 40% on the cost of childcare. Crucially, it's uncapped and available to higher earners — so unlike almost everything else, it reaches the parents the £100,000 cliff leaves behind. Set up properly, it's cost-neutral to you as the employer.

The tax exemption behind it only applies when specific conditions are genuinely met, so it's worth knowing what those are before you talk to a provider. We've set that out in full here: Workplace nursery partnerships: what the rules actually require.

FAQ

Does a workplace nursery partnership really work for people earning over £100,000?

Yes. Unlike Tax-Free Childcare and the funded hours, the workplace nursery exemption isn't income-capped. It's available to higher earners and covers the full nursery cost put through salary sacrifice, which is what makes it useful for exactly the group other support excludes.

Is the £100,000 limit based on household or individual income?

Individual. If either parent's adjusted net income goes over £100,000, the family loses Tax-Free Childcare and the funded hours — regardless of the other parent's income. It's why a single high earner can lose support a higher-earning dual-income household keeps.

What counts towards the £100,000 — is it just salary?

It's adjusted net income, not gross salary. Pension contributions and Gift Aid reduce it, so some parents who look over the line on paper are under it once those are taken into account. It's worth checking before assuming someone doesn't qualify.

Does offering this cost us more as an employer?

Not when it's structured properly. The contribution the rules require is covered by the National Insurance you save on the salary sacrifice, so a workplace nursery partnership is cost-neutral.