Financial Statement Audit for UK Companies
UK GAAP and IFRS audits that pass scrutiny, surface improvements, and keep you ready for investors, lenders and regulators.

A financial statement audit is an independent examination of your accounts and disclosures to provide reasonable assurance they are free from material misstatement. Pearl Lemon Accountants tests controls and balances under UK GAAP or IFRS, then issues a clear opinion with a management letter you can act on.
Our audit team blends sector knowledge with AI-assisted analytics to validate revenue recognition, inventory, leases and tax provisions. You get findings that improve controls, not just a pass or fail. Need confidence before an investor pitch or FRC review? Speak with our accredited leads on our team page, or Book a Call to align the scope with your deadlines. For board readiness, see how audit insights roll into Corporate Governance improvements you can implement this quarter.

Why a financial statement audit under UK GAAP or IFRS?
A financial statement audit gives stakeholders assurance that your UK GAAP or IFRS accounts are fairly stated, which reduces financing friction and regulatory risk. Pearl Lemon Accountants tests what matters, then reports adjustments and control actions you can adopt immediately.
Audits exist to protect lenders, investors and regulators by confirming your numbers are prepared to the right standards. In the UK, FRC oversight and Companies Act requirements mean many entities must present audited accounts that hold up under challenge. We tailor testing to the risks in your model: subscription deferrals, construction contract accounting, manufacturing cost build-ups or retail stock movements.
Expect practical outputs. We explain proposed adjustments, quantify materiality, and prioritise control fixes. If you operate internationally, we align treatments across IFRS and local UK GAAP nuances so group reporting stays consistent. New to audits or returning after a gap? Learn how we work on About Pearl Lemon Accountants, or Contact us to discuss readiness.

UK GAAP vs IFRS: what changes in scope and testing
Both frameworks aim for fair presentation, yet IFRS often requires more judgment around revenue, leases and financial instruments, while UK GAAP (FRS 102) can be simpler in measurement. We scope testing to your framework so disclosures, policies and estimates are defensible.
In practice, differences show up in areas like revenue and leases. Under IFRS 15, construction and SaaS models demand contract-level analysis, performance obligations and variable consideration review. FRS 102 requires careful policy selection and consistent application, but may simplify some outcomes. IFRS 16 brings most leases on-balance sheet, which changes completeness tests, discount rates and right-of-use asset checks. For FRS 102 Section 20, we still test lease classification and disclosure quality, just with different evidence.
Financial instruments, impairment and deferred tax can diverge as well. We benchmark your estimates, reconcile models, and tie results to disclosures that match the chosen framework. If you report to investors on IFRS but keep statutory accounts on UK GAAP, our planning links both so numbers reconcile and narrative remains consistent. Where risk concentrates, we expand sampling and analytics and log it in your Risk Management register, with knock-ons handled in Tax where timing differences arise.
We plan around your risks, test controls and balances with analytics and sampling, then report adjustments and actions. The outcome is a clear opinion plus a prioritised management letter, delivered on an agreed timetable.
Planning and risk assessment
We identify significant risks across revenue, inventory, leases, impairment and tax. Materiality and performance materiality are set, controls are mapped, and a timeline is agreed so your finance team can prepare schedules without disruption.
Data ingestion and analytics
We ingest ledgers, subledgers and bank data. AI-assisted tools surface anomalies in journals, period-end postings, duplicate suppliers and unmatched cash. Results drive targeted sampling and walkthroughs.
Controls and substantive testing
We test key controls where efficient, then perform substantive procedures: reconciliations, external confirmations, stock counts, contract reviews and recalculations. Judgments and estimates receive sensitivity checks.
Closing and reporting
We present proposed adjustments, unadjusted misstatement summaries, and control recommendations. You receive adjusted financial statements, disclosure checklists and a management letter. Issues that suggest fraud or irregularity are escalated to Forensic Accounting. Transactions affecting valuation or M&A readiness are flagged for Due Diligence planning. Ready to schedule fieldwork? Book a Call to lock dates.
Sector risks shape our audit programme. Retail and ecommerce face inventory and VAT issues, construction needs IFRS 15 contract testing, and manufacturers require cost and impairment reviews. We tailor procedures so findings match how your business earns cash.
Retail and ecommerce
We reconcile stock movements, test pricing and markdowns, review deferred revenue for gift cards and subscriptions, and tie VAT reporting to sales data. See how we approach platform-based sellers in Ecommerce.
Construction and project delivery
We test contract terms, performance obligations, variable consideration and loss-making jobs under IFRS 15. WIP cut-offs, subcontractor liabilities and bonding are examined. Learn more about our experience with contractors in Construction Companies.
Manufacturing and supply chain
We examine standard costing, overhead absorption, slow-moving write-downs and supplier rebate accounting. Forecasts inform impairment testing where volumes or margins shift. Across all sectors, journal analytics and vendor master reviews help surface errors early.

Tools, security and data handling (Xero, QuickBooks, Sage, ISO 27001)
We integrate securely with Xero, QuickBooks Online and Sage to extract complete, reliable datasets. Documents move through encrypted cloud portals aligned to ISO 27001, and access is role-based so evidence remains confidential and auditable.
Our analytics accelerate tie-outs, journal testing and cash reconciliations, which shortens fieldwork without cutting assurance. For lease and revenue models, we apply templated workpapers so IFRS 15 and IFRS 16 judgments are recorded consistently. Where IT control gaps appear, we log actions and recommend SOC 2-aligned tools. If you want ongoing support after sign-off, our Accounting team can help embed month-end controls so next year’s audit runs faster with fewer adjustments.

Deliverables, timelines and what you receive
You receive a clear opinion plus actionable improvements. Our pack is designed for boards, lenders and investors, so you can file on time and brief stakeholders confidently.
What you receive
- Signed audit opinion (unmodified, qualified, adverse or disclaimer as appropriate)
- Adjusted financial statements and disclosure checklists
- Management letter with priority-ranked control actions and owners
- Summary of unadjusted misstatements and materiality rationale
- Audit committee reporting pack (PDF plus editable slides)
- Evidence archive and PBC (Prepared-By-Client) checklist for next year
Typical timelines, from PBC completeness
- Small single-entity: planning 3–5 days; fieldwork 5–8 days; close 5–7 days
- Mid-market or group: planning 1–2 weeks; fieldwork 2–3 weeks; close 2 weeks
- Accelerated filing or investor deadline: we can parallelise teams where feasible
Dependencies: timely PBC items, access to systems, and decision-maker availability. Need dates locked in? Book a Call to reserve a fieldwork window, or Contact us to confirm lead times during peak season.

Pricing approach and scope drivers
Pricing reflects risk, complexity and speed. We scope around your framework (UK GAAP or IFRS), entities, revenue models and deadlines, then quote a fixed fee with clear inclusions.
Typical bands, indicative and excluding VAT
- Small UK company (single entity, straightforward revenue): £6k–£12k
- Mid-market or light group (2–4 entities, moderate estimates): £12k–£35k
- Complex group, regulated or IFRS-heavy judgments: £35k–£120k+
Add-ons if needed: component audits, inventory counts at multiple sites, expedited close, prior-period restatements.
Scope drivers
- Framework and disclosure depth (FRS 102 vs IFRS)
- Number of entities or locations and stock counts
- Estimates and judgments (impairment, IFRS 15, IFRS 16)
- Data readiness and month-end control maturity
- Deadline pressure and coordination with tax and lenders
We reduce year-two fees by improving your close process. If you want help embedding monthly controls, our Accounting team can support cleanup and reconciliations before audit planning. For a tailored quote, Book a Call.
Benchmarks and results we track
We manage each engagement to measurable service levels and quality targets. Here are the internal benchmarks we aim for on standard engagements.
| Quality and delivery target | Benchmark |
|---|---|
| On-time opinion delivery against agreed timetable | ≥ 95% |
| PBC first-pass acceptance rate (complete and correct) | ≥ 85% |
| Proposed adjustments accepted, by value | ≥ 80% |
| Recurrence-free control issues by next audit | ≥ 70% |
| Response time during fieldwork, working hours | ≤ 1 business day |
| Post-audit satisfaction, client survey | ≥ 4.5/5 |
How we track: milestones in our audit platform, weekly status notes to management, and close-meeting retrospectives with actions for next year. Ask your engagement lead for our standard KPI dashboard and a sample status report. To learn more about our team and governance, visit About.
Note: targets may be adapted for complex groups, accelerated timetables or first-year audits.

Case study: audit outcome for a UK retail group
An anonymised example of how targeted testing and clear reporting improve both compliance and controls.
Context: £45m revenue omnichannel retailer with online marketplaces and 18 stores. Framework: FRS 102. Deadlines: lender covenant review and Companies House filing within 10 weeks.
What we did
- Journal analytics highlighted out-of-period postings and duplicate vendors
- Stock counts at 6 sites, with tightened cut-off and markdown testing
- Gift card breakage and deferred revenue recalculated; VAT tied to sales platforms
- Lease population completeness testing and updated disclosures
Outcome
- Clean (unmodified) audit opinion delivered on time
- Two material adjustments agreed: deferred revenue and inventory provision
- Nine control actions implemented, including vendor master approvals and stock reconciliation cadence
- Risk register updated and handed to management, with follow-up testing planned
Explore related risks and procedures on our Ecommerce page, and see how we fold findings into your Risk Management roadmap.
Frequently asked questions
It depends on company size, group status, sector rules and lender or investor requirements. Thresholds and exemptions can change, and some industries mandate audits regardless of size. We will confirm your position quickly and document the rationale for your files. Contact us for a free eligibility check.
We map deliverables to your month-end and assign owners to each PBC item. Most testing is performed from system extracts and secure portals, with targeted on-site work for counts or walkthroughs. Expect regular status updates and a rolling issues log to avoid last-minute surprises.
Yes. We parallelise testing, increase senior reviewer time and run daily stand-ups. We will agree a non-negotiable cut-off for adjustments and disclosures so the opinion date is protected. For accelerated timetables, Book a Call early to secure a fieldwork window.
We escalate through our ethics and independence procedures, expand testing as needed, and coordinate with your board and advisers. Where appropriate we involve Forensic specialists and preserve evidence, and our guide to the top forensic accounting firms in the UK explains what that work involves. Your audit opinion and reporting will reflect the facts and required standards.
We test calculations, agree rates, challenge judgments and tie movements to supporting schedules. Timing differences from revenue recognition, leases or impairments are reconciled. If you need help preparing computations or returns, our Tax team can support outside the audit.
Yes. We extract complete, read-only datasets and reconcile subledgers, journals and bank feeds. We also review user access and key configuration settings. Where gaps exist, we will recommend control improvements so next year’s audit requires fewer adjustments.
Usually the opposite. Better reconciliations, cleaner schedules and clearer narratives reduce testing time. We highlight fee-reducers in the management letter, controls that both improve assurance and shorten future fieldwork.
Make your next audit a strategic asset
Secure a compliant audit and actionable insights, on time and without the scramble. Book a Call to lock dates and scope, or meet the people who will lead your engagement on our team page. We will tailor testing to your risks, deliver a clear opinion, and leave you with improvements that stick.
