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Caught in the Tax Net: HMRC Prevails in High-Income Child Benefit Case Against Mum


Mother and daughter

In a recent decision, the UK First-Tier Tax Tribunal ruled against Claire O’Hare, a UK taxpayer who failed to notify HMRC of her liability under the Higher Income Child Benefit Charge (HICBC) scheme, a controversial tax policy targeting high-income earners who receive child benefits.


The tribunal judgment, released on October 16, 2024, upheld HMRC’s discovery assessments totalling £3,452 for the years 2017 through 2020. This decision underscores the contentious nature of the HICBC policy, which has left many unsuspecting taxpayers in the crosshairs of unexpected tax liabilities.


Background of the Case

The HICBC was introduced in 2013 as a means to reclaim child benefits from households where one partner earns above the £50,000 income threshold (now £60,000). Mrs. O’Hare, whose income exceeded this threshold, did not file a self-assessment return or inform HMRC about her potential HICBC liability. Her case, however, points to the complexity of the HICBC’s enforcement: despite her income, she was not initially notified or requested to file self-assessment tax returns.


The situation took a turn in 2021 when HMRC, leveraging its discovery assessment powers, issued retroactive tax assessments. These assessments dated back several years, claiming a significant sum from O’Hare for child benefits she had received during those years. This action was taken despite her claims of being unaware of the HICBC requirement.


The Tribunal’s Findings

The tribunal hearing, led by Judge Abigail McGregor, dissected key questions of fairness, HMRC’s duty to notify, and the taxpayer's responsibility to proactively manage self-assessment obligations.


O’Hare argued that her ignorance of the HICBC was justified and that HMRC’s failure to adequately inform affected taxpayers of this new tax liability unfairly penalised her. She testified that her first awareness of the HICBC came only with a 2021 letter from HMRC, which she described as a shock.


The tribunal, however, found HMRC’s position legally valid. Under recent legislative amendments in the Finance Act 2022, HMRC can apply retrospective charges for missed tax assessments, known as “protected assessments,” covering historical tax years. The tribunal determined that HMRC’s discovery assessments against O’Hare were both reasonable and in line with the updated legal framework, which allows for retrospective tax collections on HICBC liabilities.


Key Implications and Public Reactions

The tribunal’s ruling sets a critical precedent for thousands of UK households who could face similar charges. The case highlights the risks taxpayers face when unaware of complex rules that impact government benefits. For taxpayers with income just over the HICBC threshold, this case illustrates that ignorance of tax regulations is unlikely to shield them from retroactive tax demands.


Tax experts have raised concerns about the clarity of HICBC enforcement, noting that a lack of direct HMRC communications about HICBC liabilities has left many in the dark. Critics argue that the case reveals HMRC’s reliance on taxpayers to self-assess on intricate rules with limited guidance.


O’Hare’s case represents a warning for taxpayers who may unknowingly be liable for HICBC-related charges. It underscores the importance of vigilance in understanding eligibility thresholds for government benefits. Meanwhile, HMRC defends its position, asserting that discovery assessments are a necessary enforcement mechanism to ensure compliance.


Looking Ahead

With the tribunal ruling in favour of HMRC, Mrs. O’Hare faces significant financial consequences, yet her case could be the catalyst for broader discussions about taxpayer fairness and transparency. Taxpayer advocacy groups have already signalled their intention to press HMRC for greater accountability in its HICBC enforcement practices, particularly for individuals who receive government benefits but remain unaware of potential tax impacts.


As awareness of HICBC liabilities increases, tax advisors urge high-income families to re-evaluate their self-assessment obligations carefully, ensuring that all applicable tax charges are reported and settled with HMRC. For Mrs. O’Hare, the tribunal decision highlights an expensive lesson in the complexities of UK tax regulations that other households may soon face.

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