Audit and Assurance Services in the UK

A statutory audit is a legal requirement, not an interruption. Yet for many businesses it arrives with heavy document requests, pressure on finance teams, and a simple question: will the financial statements withstand scrutiny when lenders, regulators, or shareholders review them?
Our work focuses on the financial reporting risks that matter, the accounting treatments behind the numbers, and the evidence supporting them.
Our auditors issue an independent opinion on whether financial statements present a true and fair view under UK company law, FRS 102, and the International Standards on Auditing (ISAs). We conduct statutory audits under the Companies Act 2006 and perform review engagements or agreed-upon procedures where a full audit is not required.
If you are unsure whether your organisation requires a statutory audit or another assurance engagement, we can assess the position and advise on the appropriate approach.

Legend Fusions is the UK advisory brand evolved from Legend Financial & Tax Advisers, unifying tax, compliance, and advisory services under one international group.

Serving clients in London, Bolton, Milton Keynes and throughout the UK.

Independent Audit for UK Companies and Charities

What Our UK Audit Services Cover

What You Get

Who We Help

Our Core Audit Services Include

Our Audit Services at a Glance

AuditStatutory

Required for public companies, large private companies, and regulated entities. We deliver independent assurance that your financial statements give a true and fair view.

ISRE 2400 Review Engagement

A cost-effective alternative to a full audit. We perform enquiries and analytical procedures to provide negative assurance on your financial statements.

Agreed-Upon Procedures (AUP)

Targeted testing of grant spend, revenue streams, or specific balances. We report factual findings without providing an audit or review opinion.

Independent Examination (Charities)

For charities that don’t require a full audit but need independent scrutiny. We review your records, restricted funds, and governance signals.

Internal Audit Services

Governance, risk, and internal control reviews that strengthen your organisation and report to management or your audit committee.

Due Diligence Services

Buy-side or sell-side due diligence that uncovers risks, validates earnings, and supports confident decision-making.

Statutory Audit Vs Other Assurance Services

Not all assurance is the same. The level of scrutiny, the procedures performed, and the opinion issued vary depending on the service you choose.

Service Level of Assurance Best For Key Procedures
Statutory Audit Reasonable assurance (highest level) Companies required by law; stakeholders needing maximum confidence Risk assessment, controls testing, substantive procedures, verification of balances
ISRE 2400 Review Limited assurance (moderate level) SMEs, lender requirements, stakeholder comfort without full audit cost Enquiries, analytical procedures, management representations
Agreed-Upon Procedures No assurance (factual findings only) Grant verification, specific balance checks, targeted investigations Procedures agreed with the engaging party; no opinion issued
Independent Examination (Charities) Review-level scrutiny Charities below audit threshold; Charity Commission requirements Records review, restricted fund checks, governance assessment

Quick Guidance

  • Choose a statutory audit if: you exceed the Companies Act thresholds, are a public interest entity, or your stakeholders require the highest level of assurance.
  • Choose a review engagement if: you need to satisfy lenders or stakeholders but don’t meet the audit threshold, or want a cost-effective alternative.
  • Choose agreed-upon procedures if: you need verification of a specific area (e.g., grant spend) without a full opinion.
  • Choose independent examination if: you are a charity that doesn’t require a full audit but needs independent scrutiny under CC31/CC32.

Still unsure? Speak to our team. We will help you determine the right level of assurance for your situation. 

When You Are Exempt from Audit

A company qualifies for audit exemption if it meets the small company criteria and satisfies two of the following three thresholds in the financial year  

Threshold
Current Limit
Annual turnover
Not more than £10.2 million
Balance sheet total
Not more than £5.1 million
Number of employees
Not more than 50

Source: Companies Act 2006 (sections 477-479). Thresholds are subject to change. Always confirm current limits with a professional.

Charity Audit Thresholds

Charities have separate rules under Charity Commission guidance: 
Charity Type
Audit Threshold
Gross income over £1 million
Full audit required
Gross income over £250,000 and gross assets over £3.26 million
Full audit required
Below these thresholds
Independent examination may be sufficient (see CC31/CC32)

Unsure if you qualify? We’ll review your situation and confirm your obligations. 

How We Work

Scope and engagement letter

We agree scope, timeline, and fee structure upfront. A clear engagement letter outlines responsibilities.

Information request

We provide a customised document request list. No last-minute surprises.

Planning and risk assessment

We identify key risks and set materiality. Our approach targets what matters most.

Fieldwork

We test controls and perform substantive procedures. Queries are raised as they arise.

Findings meeting

We present preliminary findings and discuss adjustments.

Final report and management letter

We issue the signed audit report with actionable recommendations.

What We Need from You

To begin the audit engagement, we typically request:

Fees and Timeline Drivers

Audit fees and timelines depend on several factors.

Typical Timeline

Planning and risk assessment
1–2 weeks
Fieldwork
2–6 weeks (depending on size)
Reporting and finalisation
1–2 weeks
Total
6–10 weeks for standard private company audits
Timelines vary based on complexity, record readiness, and stakeholder requirements.

Our Commitment to You

A dedicated audit manager as your single point of contact

Clear, jargon-free communication throughout

Issues raised early, not hidden until the final report

Fixed-fee quotes with no unexpected costs

Initial consultation within 48 hours. Clear timeline and fixed-fee quote provided upfront.

Experience Backed by Professional Standards

Our Credentials

Professional Accreditation

Software & Platform Partners

Data Protection & Compliance

Year of experience
+

Legend Fusions is the UK advisory brand evolved from Legend Financial & Tax Advisers, unifying tax, compliance, and advisory services under one international group. …”

Frequently Asked Questions

No. Most small companies are exempt if they meet two of three criteria: turnover under £10.2 million, assets under £5.1 million, and fewer than 50 employees.
An audit provides reasonable assurance through detailed testing. A review provides limited assurance using enquiries and analytical procedures only.
Most private company audits take 6–10 weeks, depending on size, complexity, and the quality of records provided.
Charities need an audit if income exceeds £1 million, or income exceeds £250,000 with gross assets over £3.26 million. Otherwise, an independent examination may suffice.
Yes, if your company no longer meets the statutory audit threshold and stakeholders agree to accept a review engagement.
Yes. We work with clients across London and the South East, with offices in Hounslow, Stratford, and Bolton for in-person meetings.
Absolutely. We support clients UK-wide via secure online portals, with remote fieldwork and video consultations available.
A review engagement provides limited assurance that nothing has come to our attention indicating material misstatement. It is a cost-effective alternative to a full audit.
Automatic penalties apply. These start at £150 and increase depending on how late the accounts are filed.
Automatic penalties apply. These start at £150 and increase depending on how late the accounts are filed.

Ready to Start Your Audit?

We’ll guide you through every step, answer your questions along the way, and make sure there are no surprises. Initial consultation within 48 hours