Treasury plans £20.7bn boost to HMRC powers as tax‑collection debate heats up

The Treasury set out plans to strengthen HM Revenue & Customs’ remit to recover an additional £20.7 billion of tax revenues over the next five years, a section of the Red Book published with the Budget shows, and the move has renewed attention on high‑profile tax errors and the politics of enforcement.

The detail appears under the heading "Collecting Tax That is Due" in the Red Book accompanying the Budget. Ministers said boosting tax yields is a priority as the government seeks to reduce borrowing and stabilise public finances. The proposed additional revenue is intended to be delivered through enhanced HMRC activity over the course of the new spending horizon.

The measures were highlighted in a column by Alex Brummer, consultant editor at the Daily Mail, who argued that the emphasis on tax collection helps explain the political heat around a recent correction in Labour deputy leader Angela Rayner’s tax affairs. Rayner paid an additional sum of about £40,000 in stamp duty after advisers concluded that the original payment for the purchase of a Hove apartment had been understated. The episode prompted widespread media coverage and political criticism.

Officials say the package in the Red Book is part of a regular process of ensuring that taxes legally due are collected, particularly as the public finances remain under pressure from elevated debt levels and higher borrowing. The Treasury figures set out an expectation that strengthening compliance activity and closing avoidance and evasion gaps will raise net receipts without changing headline tax rates.

The prominence given to compliance follows sustained public and political scrutiny of both individual cases and HMRC’s enforcement methods. Critics of stronger enforcement argue that more intrusive activity can impose costs on small businesses and individuals, while supporters say stronger powers are needed to ensure fairness and protect revenues.

In his column, Brummer recalled a personal encounter with HMRC following a previous critical article, saying he was selected for a tax inspection that looked back five years and focused on freelance income. That anecdote echoed earlier controversies in which small businesses and sole traders complained about what they described as heavy‑handed approaches to checks and inquiries. HMRC says its compliance work targets the most significant risks to the tax system and that its processes include safeguards and appeals routes for taxpayers.

Government officials have not released a detailed, line‑by‑line list of the new powers or operational changes in the compliance programme beyond the spending figures in the Red Book. Past Treasury and HMRC initiatives to raise revenue have included expanded data‑matching, increased offshore enquiries, and sharper pursuit of promoters of tax avoidance, but the Budget materials for this cycle limited public detail to aggregate expected additional receipts.

Labour frontbench figures have framed recent tax corrections as matters of transparency and timely rectification. The party said taxpayers were expected to comply with the rules and that errors should be corrected when identified. Opposition parties argued that high‑profile errors underline the importance of equal treatment before the tax system.

Tax practitioners and accountants said they were monitoring how enhanced compliance activity would be targeted. Some professional bodies urged clarity on how HMRC would apply new powers to avoid disproportionate burdens on taxpayers who are compliant but may make unintentional errors. Others called for quicker, clearer guidance from the Treasury on the scope of any new compliance drives to reduce uncertainty for businesses and individuals preparing returns.

The Red Book publication comes as the government seeks to present a strategy for narrowing the deficit without resorting to further immediate rate changes. Treasury officials described collecting tax due as a central, non‑controversial plank of that strategy, though the political impact of enforcement actions has already been felt in recent weeks.

How the additional £20.7 billion will be realised in practice, and how HMRC will balance efficient revenue collection with taxpayer protections, will be scrutinised by Parliament, professional bodies and commentators as the measures are translated into operational programmes. The Treasury faces the challenge of achieving the projected gains while ensuring that compliance activity is perceived as fair and proportionate across different types of taxpayers.