Self Assessment for Child Benefit High Income Charge

What this service covers

If you are unsure whether Child Benefit has triggered a filing requirement, we handle the full Self Assessment process and the specific High Income Child Benefit Charge (HICBC) calculations.

You can expect support with:

• Confirming whether you need to register for Self Assessment and file a return.
• Reviewing income sources that affect the charge, including salary, dividends, self-employed profits, rental income and benefits in kind.
• Calculating adjusted net income and the HICBC amount, including common adjustments like pension contributions and Gift Aid where relevant.
• Preparing and submitting your Self Assessment tax return to HMRC.
• Explaining what you owe and when, and what to do next to avoid repeat issues.
• Guidance on practical options for future years, for example whether to continue receiving Child Benefit or claim but opt out of payments.

When this is most relevant

This service is a good fit if any of the following apply:

• You claimed Child Benefit and either you or your partner’s income may have crossed the threshold.
• You are employed under PAYE and did not expect to need a tax return.
• You have variable income from contracting, bonuses, overtime, dividends, or self-employment.
• You are a company director taking a mix of salary and dividends.
• You have received HMRC letters asking you to register or file, or you are worried you may have missed past returns.

How the process works

We keep the process structured and low-effort for you.

1. Initial review: We ask a few targeted questions to understand who claimed Child Benefit, which tax years are affected, and what your income sources look like.

2. Information gathering: You provide the key figures and documents needed, typically P60s, P11Ds (if applicable), dividend details, self-employed income and expenses, pension contribution details, and Child Benefit amounts.

3. Calculation and return preparation: We calculate the HICBC correctly for each relevant year and prepare the Self Assessment return(s). We also highlight anything that may change the charge, so you understand the result.

4. Submission and next steps: Once approved, we file with HMRC and confirm deadlines, payments due, and what to do for future years.

What happens after filing

After submission, you will have a clear view of your position and a practical plan to stay compliant. Where relevant, we can help you set up a smoother approach for future years, such as keeping records ready for Self Assessment or reviewing income levels ahead of year end to reduce surprises.