Paying the High Income Child Benefit Charge: PAYE or Self Assessment?

Tax Queen

Tax Expert @ Pie

3 min read

If you or your partner earn over £60,000 and one of you receives Child Benefit, you're likely liable for the High Income Child Benefit Charge (HICBC).

What many people don't realise is that there are two different ways to pay it, through your Self Assessment tax return, or through an adjustment to your PAYE tax code. Which one applies to you, and which one suits you better, depends on your circumstances.

This guide explains how each method works, the pros and cons of both, and how to switch if you'd rather not file a Self Assessment return just for this one charge.

A quick recap: what is the High Income Child Benefit Charge?

The HICBC applies when you or your partner have an income over £60,000 and either of you receives Child Benefit. It doesn't matter whose name the Child Benefit claim is in, if your income is the higher of the two, you're the one liable for the charge.

One detail that catches people out: the charge can apply even if the child isn't your own, as long as Child Benefit is being claimed and you contribute to that child's upkeep. So a new partner moving in with someone who claims Child Benefit for children from a previous relationship could suddenly find themselves liable, even though they've never claimed Child Benefit themselves.

The charge increases gradually as income rises between £60,000 and £80,000, and once you reach £80,000, you're liable for the full amount of Child Benefit received. For a worked example showing how much this could cost a family with two children, see HMRC warning: families told to call over £2,250 Child Benefit bill.

Two ways to pay the charge

Option 1: Self Assessment

Traditionally, anyone liable for HICBC had to register for Self Assessment and declare the charge on their tax return, even if all their other income was taxed through PAYE. For many people, this was their only reason for being in the Self Assessment system at all.

If this applies to you, you'll need to register by 5 October following the end of the tax year in which you became liable, and file by the usual deadlines (31 October for paper returns, 31 January for online). For the broader picture of when PAYE employees also need to file, see do high earners need to file a Self Assessment if they already pay PAYE?

Option 2: PAYE tax code adjustment

The alternative is to have HMRC collect the charge through your tax code, the same system that already takes income tax and National Insurance from your pay.

Instead of a separate annual bill, the charge is spread across your payslips throughout the year as a tax code adjustment. For a refresher on how tax codes and PAYE deductions work day to day, see what is PAYE: your guide to Pay As You Earn.

This option exists specifically so that people whose only reason for filing Self Assessment was the HICBC can avoid that annual admin altogether.

Which option should you choose?

PAYE collection tends to make sense if HICBC is your only reason for being in the Self Assessment system, you'd prefer the charge spread across the year via your payslip rather than paid as a lump sum, or your income and Child Benefit situation is fairly stable from year to year.

Self Assessment may suit you better if you already file a return for other reasons, such as self-employment income, rental income, or dividends, if your income fluctuates significantly and you'd rather calculate the exact charge once a year based on actual figures, or if you want full visibility of the calculation alongside your other income and allowances in one place.

If you're already filing Self Assessment for other income, there's generally little benefit to separating out the HICBC into PAYE, it's simpler to keep everything in one return. If you're filing only because of HICBC, switching to PAYE collection can remove that requirement entirely.

Historical Context and Old Procedures

Prior to the recent changes, tens of thousands of families were drawn into the self-assessment system due to the HICBC, despite most of their taxes being handled automatically via PAYE. This led to widespread frustration among higher earners, particularly those unfamiliar with annual tax returns.

The process imposed an added layer of complexity for affected households, many of whom only entered self-assessment for this reason. This longstanding issue prompted financial experts and professional bodies to advocate for reform in the tax collection method.

How to switch to PAYE collection

If you'd like HMRC to collect the charge through your tax code instead of Self Assessment, you can check your eligibility through your Personal Tax Account on the HMRC website and opt in to PAYE collection there.

HMRC will then issue an updated tax code reflecting the charge, and your employer or pension provider will deduct the adjusted amount automatically through your regular pay.

Once this is set up, and assuming you have no other reason to file, you may no longer need to complete a Self Assessment return for this charge.

It's worth reviewing this each year though, since a change in income, a new income source, or a change in Child Benefit claims can all affect whether PAYE collection remains the right fit, or whether Self Assessment becomes necessary again for other reasons.

What if your circumstances change?

Income, relationships, and Child Benefit claims rarely stay static, and the HICBC follows whoever has the higher income in a household, not necessarily the person claiming the benefit.

If your income crosses £60,000 for the first time, if you move in with a partner who claims Child Benefit, or if your income drops back below the threshold, your HICBC position can change from one tax year to the next.

This is where keeping track of your overall tax position throughout the year helps. If you're managing multiple income types alongside a PAYE job, see declaring multiple income streams on Self Assessment UK for a useful next read.

How Pie can help

Whichever route applies to you, staying on top of HICBC means knowing your household income position before HMRC tells you about it. Pie is Self Assessment software built for UK taxpayers, including those who only need to file because of charges like HICBC, those juggling PAYE alongside other income, and everyone in between. Pie started life as a Self Assessment app, and that mobile-first design is still at the heart of how it works today.

The Pie app shows your tax position in real time, so you can see how close you are to the £60,000 and £80,000 thresholds well before the end of the tax year, rather than discovering a liability after the fact. If Child Benefit applies to your household, see where to enter Child Benefit figures in the Pie Tax App for exactly where this goes.

Take a look at how Pie works, or read more about why Pie compares favourably to other options. If you're ready to get started, you can try Pie for free on iOS, Android, or the web.

Historical Context and Old Procedures