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UK Tax Administration Costs Spiralling: The Growing Burden on Businesses and HMRC

 A System Under Strain

The UK’s tax system is becoming increasingly complex, placing a growing financial and administrative burden on businesses and the government. According to the National Audit Office (NAO), tax administration costs have risen significantly, with businesses paying hundreds of millions more to comply with tax rules while simultaneously losing trust in HM Revenue & Customs (HMRC).

This blog post explores the key issues behind rising tax administration costs, the impact on businesses, and potential solutions for a more streamlined system.

The Cost of Complexity

The cost of administering the UK’s tax system has surged in recent years. HMRC’s expenses alone increased by 15% in real terms between 2019-20 and 2023-24, reaching £4.3 billion in 2023-24. This is despite increased use of digital tools and automation designed to simplify tax processes.

What’s Driving the Costs Up?

  1. Fiscal Drag and Increased Taxpayers

    • The number of taxpayers has increased significantly, with an additional 4.5 million people entering the income tax system between 2020-21 and 2023-24.
    • This surge is partly due to the freezing of personal income tax thresholds until 2028, leading to more low-income earners paying tax and pushing many into higher tax brackets.

  2. Compliance Burden on Businesses

    • Businesses now face an estimated £15.4 billion per year in administrative costs just to comply with tax regulations.
    • Small businesses and landlords are particularly affected, as they are being pushed to adopt digital record-keeping under Making Tax Digital (MTD) for Self-Assessment.

  3. HMRC’s Service Failures

    • The NAO’s report highlights poor levels of customer service, with longer call waiting times and a shift to online-only services causing frustration for businesses and individuals.
    • HMRC has been accused of deliberately reducing phone services to force taxpayers into using digital platforms, further exacerbating trust issues.

Making Tax Digital (MTD): The Promise vs. The Reality

The government introduced Making Tax Digital (MTD) to simplify tax compliance by requiring businesses and self-employed individuals to maintain digital records. However, MTD has increased compliance costs and caused confusion, particularly for small businesses and landlords.

MTD’s Hidden Costs

  • Software Expenses: Many businesses must purchase MTD-compliant accounting software, adding to operational costs.
  • Training & Implementation: SMEs often require additional training to adapt to new digital tax filing requirements.
  • Penalties for Non-Compliance: Businesses struggling with MTD implementation face penalty risks, further increasing financial strain.

Businesses Demand Simpler Solutions

  • A recent survey found that 60% of small business owners believe the tax system is too complicated and requires urgent reform.
  • Calls for simplified tax bands and allowances have grown louder, with tax professionals urging the government to reconsider the pace and scope of MTD.

Tax Complexity Is Undermining Trust in HMRC

The NAO’s report confirms a worrying trend: trust in HMRC is declining. Businesses and taxpayers are finding it harder to resolve tax matters, leading to missed deadlines, incorrect filings, and penalties.

Key Issues Undermining Trust

  1. Longer Call Waiting Times

    • Many businesses rely on phone support to navigate tax queries. However, average call waiting times have increased dramatically.
    • Some reports suggest that businesses spend hours on hold, with many calls going unanswered.

  2. Unclear Tax Guidance

    • HMRC provides online manuals and guidance, but many find them too complex or contradictory.
    • Tax professionals argue that ambiguous rules create unnecessary disputes and increase administrative burdens.

  3. Aggressive Penalties for Errors

    • Instead of assisting taxpayers with compliance, HMRC has been accused of taking an aggressive approach to penalties.
    • Even minor tax return errors can lead to hefty fines, discouraging businesses from engaging proactively with HMRC.

The Future of UK Tax Administration: Reform Needed

The UK government has acknowledged the problem and promised tax simplification measures in April 2025. However, meaningful reform is needed to reduce costs and restore trust.

Potential Solutions

  1. Better Customer Support

    • Restoring phone services and reducing waiting times would provide immediate relief for businesses struggling with tax compliance.
    • Dedicated small business helplines could ensure that SMEs receive tailored guidance.

  2. Simplifying Tax Rules

    • Reducing the number of tax bands and thresholds would help cut down compliance costs.
    • Standardising allowances across different tax categories could eliminate unnecessary complexity.

  3. Revising Making Tax Digital (MTD)

    • A phased rollout with better support for small businesses is crucial.
    • More affordable MTD software options should be introduced, particularly for landlords and sole traders.

  4. Improved Communication & Transparency

    • Clearer, plain English guidance on tax matters would help businesses comply more easily.
    • HMRC should engage with small business representatives when designing new tax rules to ensure practical implementation.

Final Thoughts: A Call for Change

The NAO report highlights a tax system that is increasingly burdensome, costly, and difficult to navigate. With businesses and taxpayers struggling under the weight of rising compliance costs and poor HMRC services, urgent reform is needed.

A simpler, fairer tax system would not only reduce costs for businesses but also improve compliance and trust in HMRC. As we move towards 2025, all eyes will be on the government’s promised tax simplification measures to see if real change is on the horizon.

Stay Tax-Efficient with Merranti Accounting

At Merranti Accounting, we help businesses navigate the complex UK tax system while ensuring they remain compliant and tax-efficient.

 Need support with tax planning or compliance?
 Want to understand how Making Tax Digital (MTD) affects your business?
 Looking for strategies to reduce your tax burden?

Contact us today to speak with a tax specialist and stay ahead of tax changes in 2025!

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