Staying on top of audits and compliance might feel like a chore, but in 2026, it’s more important than ever. Recent government data shows that small businesses now account for the largest share of the UK tax gap, at 60% in 2023/24. Mistakes like record-keeping errors, filing inaccuracies, or simply not taking reasonable care can trigger HMRC compliance checks and tax inquiries.
At the same time, proper audits and strong internal controls can protect your business, give you confidence in your numbers, and help you make smarter decisions. Here’s what you need to know.
What We Mean by a “Business Audit”
The term “audit” can mean different things depending on the context. For most businesses, it refers to one of the following:
Statutory Financial Audit
A regulated review of your annual accounts under the Companies Act. Auditors check that your accounts provide a true and fair view and meet UK GAAP or IFRS standards.
HMRC Compliance Check or Tax Inquiry
HMRC may review corporation tax, VAT, PAYE, or R&D relief. This involves explaining figures, providing supporting documents, and, in some cases, correcting errors or amending returns.
Other Audits and Reviews
Lenders, investors, regulators, or parent companies may request additional reviews, from targeted procedures to full internal audits.
For most SMEs, statutory audits and HMRC compliance checks are the most relevant and can directly impact your business decisions.
Who Needs a Statutory Audit in 2026?
From 6 April 2025, small private limited companies may qualify for audit exemption if they meet at least two of the following criteria:
- Annual turnover under £15m
- Assets worth no more than £7.5m
- 50 or fewer employees on average
Even if you qualify for exemption, some companies still require an audit, for example:
- Public companies or subsidiaries without group exemptions
- Regulated businesses like banks or insurers
- Companies with shares on a regulated market
- Master trust pension scheme funders
Audits may also be requested by shareholders holding 10% or more, lenders, investors, or potential buyers as part of due diligence. So even if it’s not legally required, having audited accounts can be strategically valuable.
HMRC Compliance Checks: What You Need to Know
HMRC completed around 316,000 compliance checks in 2024/25, ranging from simple queries to full records reviews. Small businesses are under particular scrutiny because they contribute disproportionately to the tax gap. Common triggers include:
- High director dividends compared with profits
- VAT returns that don’t match accounts or sector norms
- PAYE or Construction Industry Scheme (CIS) returns with employment risks
- Large or unusual claims for R&D or capital allowances
A compliance check doesn’t automatically mean wrongdoing, but it demands careful management and accurate records.
Why Compliance Matters More Than Ever
HMRC’s approach is evolving. Preventative measures, like nudges, education, and guidance, now account for around 41% of their compliance yield, up from 29% in 2020/21. Overall compliance yield reached an estimated £48bn in 2024/25, highlighting the government’s focus on risk-based reviews, sector-specific campaigns, and data analytics.
For business owners, this means:
- Stronger internal controls protect your business from errors or fraud
- Accurate, up-to-date accounting records make audits smoother
- Sound governance supports better decision-making and planning
Investing in these areas is not just about compliance, it’s about running a more resilient, informed business.
The Autumn Budget and Compliance in 2025/26
The Autumn Budget 2025 didn’t change headline tax rates, but it confirmed:
- Stable corporation tax, VAT, and income tax rules
- Higher tax on dividend income from 2026/27 (up 2 percentage points)
- Increased funding for HMRC compliance and digital tools
In short, the rules are largely the same, but HMRC’s capacity and willingness to enforce them is increasing. Staying ahead with audits and strong internal controls has never been more important.
How Business Audits Support Smarter Decisions
A well-managed audit is more than a compliance exercise, it’s a tool for better business decisions. Benefits include:
- Confidence in financial reporting for owners, investors, and lenders
- Early identification of errors or risks before they become serious
- Insights into operations and cost management
- Stronger governance and internal controls
In a landscape where HMRC scrutiny is increasing, these benefits can make a real difference to your business strategy.
Next Steps for SME Owners
Even if your company isn’t required by law to have an audit, it’s worth considering for peace of mind, investor confidence, and strategic planning. Accurate accounts, strong internal controls, and careful compliance management put you in a better position to respond to inquiries and make informed decisions.
If you’d like guidance on audits, compliance checks, or improving your internal controls, get in touch with our team today. We help SMEs navigate regulatory changes, manage risk, and make confident business decisions.
