Compliance

How to Prepare for a Fixed Asset Audit in the UK

March 17, 2026

UniAsset Team

fixed asset audit UKasset audit preparationstatutory audit fixed assetsacademy trust internal scrutinyfixed asset register audit

The email that starts most fixed asset audits looks the same everywhere: a request for the fixed asset register as at year end, reconciled to the general ledger, along with supporting documentation for a sample of additions and disposals. What happens next depends entirely on how prepared the finance team already was, not how much notice they had.

Organisations that treat their asset register as a live operational record — updated as things happen, reconciled regularly — turn that request around in a day or two. Organisations that treat it as an annual exercise spend weeks reconstructing data they should already have had.

This guide covers what a UK fixed asset audit actually involves, who's asking and why, what auditors specifically look for, and how to prepare properly — whether you're facing a statutory external audit, an academy trust's internal scrutiny review, or an insurer's post-loss verification.

Who Audits Fixed Assets, and Why

Not every "audit" is the same exercise, and the differences matter for how you prepare.

Audit type	Who performs it	What it's checking
Statutory external audit	Registered auditor (accountancy firm)	Whether the accounts, including fixed assets, give a true and fair view under the Companies Act 2006
Academy trust internal scrutiny	Internal auditor or scrutiny provider appointed by the trust	Regularity, propriety and value for money, as required by the Academy Trust Handbook
Charity audit or independent examination	Registered auditor or independent examiner	Whether the accounts comply with the Charities SORP and Charities Act 2011
Insurance audit or claim verification	Insurer or loss adjuster	Whether declared assets and values are accurate, and whether a claim is substantiated
Internal audit	In-house audit function	Effectiveness of internal controls over asset acquisition, use, and disposal
Grant or funder audit	Funding body (e.g. ESFA for capital grants)	Whether grant-funded capital expenditure was used as intended

Most organisations only encounter one or two of these regularly. If you're an academy trust, internal scrutiny and the statutory audit are both mandatory and distinct — internal scrutiny is not a substitute for the external audit, and vice versa.

ℹ️Info

Whether a company needs a statutory audit at all depends on thresholds set out in the Companies Act 2006 for turnover, balance sheet total, and employee numbers. Those thresholds have been revised in recent years, so confirm your current audit exemption status with your accountant rather than relying on a figure that may be out of date.

What Auditors Are Actually Testing

External auditors don't test every asset — they test whether your fixed asset balance, taken as a whole, is fairly stated. In practice, that means testing against a small number of specific assertions:

Existence — the assets recorded on the register actually exist and are in use or in the location claimed.
Completeness — all assets the organisation owns are recorded; nothing material is missing from the register.
Rights and obligations — the organisation actually owns (or has the right to depreciate) the assets claimed, rather than, for example, leased equipment mistakenly capitalised.
Valuation — the recorded cost, depreciation, and net book value are calculated correctly and consistently with the stated accounting policy.
Presentation and disclosure — assets are classified correctly and the accounting policy notes (depreciation method, useful lives, capitalisation threshold) match what's actually been applied.

Auditors test these assertions using a mix of techniques: reconciling the register to the general ledger, sampling a selection of additions and disposals in the year and tracing them to invoices or disposal evidence, physically verifying a sample of assets exist where the register says they do, and reviewing whether the depreciation policy has been applied consistently with prior years.

⚠️Warning

A register that reconciles to the general ledger in total, but where individual asset records don't match the underlying transactions, will still generate audit queries. Auditors sample transactions, not just totals — a discrepancy on one sampled item raises questions about the whole population.

Reconciling the Register to the Ledger

This is the single most common source of audit friction, and it's almost entirely avoidable with routine housekeeping.

Your fixed asset register and your general ledger fixed asset accounts should agree at any point in time — same total cost, same accumulated depreciation, same net book value. They drift apart when:

An asset is added to the register but the purchase is coded to a different nominal account, or vice versa.
A disposal is processed in the ledger (removing cost and accumulated depreciation) but the asset isn't marked as disposed in the register, or the reverse.
Depreciation is posted to the ledger via a journal that doesn't match what the register calculates, because the two are maintained separately with different assumptions.

The fix is structural, not a one-off exercise: reconcile the register to the ledger at least monthly, not just at year end. A monthly ten-minute check catches a discrepancy while the underlying transaction is still easy to trace. The same check performed once a year, months after the transaction, can take days to unpick.

Sample Testing: What to Expect

External auditors typically select a sample of transactions rather than reviewing every asset, sized according to the materiality of your fixed assets and the auditor's assessment of risk in that area. For each item in the sample, expect to be asked for:

On additions:

The purchase invoice or contract
Evidence of authorisation for the purchase
Confirmation of the date the asset was brought into use (relevant to when depreciation starts)
The category and useful life applied, and why

On disposals:

Evidence of the disposal (sale invoice, scrap note, write-off authorisation)
Calculation of the profit or loss on disposal
Confirmation the asset has been removed from the register and the ledger

On existence:

Physical location of a sample of assets, to confirm the register reflects reality

If your organisation can retrieve this evidence for a named asset in minutes rather than by searching through a shared drive or paper files, the audit moves quickly. If it can't, the auditor's fallback is to extend testing — a larger sample, more queries, more time, and often a management letter point about the strength of your controls.

Academy Trusts: Internal Scrutiny and External Audit Are Both Required

Academy trusts have a specific structure worth calling out separately, because it catches out finance teams new to the sector. The Academy Trust Handbook, published annually by the Department for Education, requires trusts to maintain a programme of internal scrutiny — independent of day-to-day financial management — covering regularity, propriety, and value for money, reporting directly to trustees or the audit committee.

This sits alongside, not instead of, the trust's statutory external audit of its annual accounts. A trust's fixed asset register is likely to come under scrutiny from both: internal scrutiny may test whether capital expenditure was authorised and used as intended (particularly for grant-funded capital projects like the Condition Improvement Fund), while the external auditor tests whether the fixed asset balances in the statutory accounts are fairly stated under FRS 102 as adapted by the Academies Accounts Direction.

💡Tip

If your trust is building or improving its asset register, our guide on managing a school asset register in the UK covers the specific requirements around capitalisation thresholds, funding source tracking, and statutory compliance evidence that both internal scrutiny and external audit will expect to see.

Common Audit Findings and How to Prevent Them

Finding	What it means	Prevention
Ghost assets	Recorded assets can't be physically located	Regular physical verification, robust disposal procedures
Unrecorded assets	Physical assets exist but aren't on the register	Mandatory receiving process tied to procurement
Register doesn't reconcile to the ledger	Register and general ledger totals disagree	Monthly reconciliation, not just at year end
Inconsistent depreciation policy	Method or useful life applied differently across similar assets, or changed without explanation	Documented capitalisation and depreciation policy, reviewed annually
Missing disposal evidence	No documentation supporting how or when an asset was disposed of	Standard disposal checklist requiring evidence before removal from the register
No evidence of authorisation	Capital purchases without a documented approval trail	Purchase approval workflow tied to the asset creation process

Real-World Scenarios

The reconciliation gap. A finance manager pulls the fixed asset register for the statutory audit and finds it shows a net book value roughly £40,000 higher than the general ledger. Tracing the difference back takes three days, eventually revealing that two disposals processed in the ledger six months earlier were never updated on the register. A monthly reconciliation would have caught this within weeks, not at year end under audit pressure.

The academy trust capital grant. An academy trust's internal scrutiny review tests a sample of Condition Improvement Fund-funded capital projects and asks for evidence that a replacement boiler was installed as specified in the grant application. Because the trust's asset register records funding source against each capital item, the evidence is retrieved in minutes rather than requiring the site manager to search through two years of invoices.

The insurance claim after a flood. A commercial property suffers water damage to its ground floor. The insurer's loss adjuster asks for evidence of what equipment was affected and its value. Because the business had photographed and valued its equipment as part of a routine asset audit the previous year, the claim is settled considerably faster than a business trying to reconstruct an inventory from memory after the event.

The disposal without evidence. An auditor samples a disposal from the fixed asset schedule and asks for the sale invoice. None exists — the asset was scrapped, but nobody documented it at the time. The finding becomes a control weakness noted in the audit's management letter, not because the disposal itself was improper, but because it couldn't be evidenced.

Preparing for an Announced Audit: A Phased Approach

Three months before:

Run a full reconciliation between the fixed asset register and the general ledger
Review the prior year's audit findings and confirm each has been actioned
Identify any known gaps — missing disposal evidence, unreconciled items — and start resolving them now

One month before:

Prepare the standard evidence package: the register as at the audit date, the depreciation policy note, a sample-ready set of invoices for the year's additions, and disposal evidence for the year's disposals
Conduct a spot physical verification of a sample of higher-value assets
Brief the team on who's the point of contact for audit queries

Audit week:

Have register extracts and supporting documents retrievable by asset ID, not by searching
Make a named person available to answer queries without delay — auditor downtime waiting for information extends the audit and often the fee
Log every query raised, so recurring questions can be addressed structurally rather than repeatedly explained

Action Checklist

Identify which type of audit applies to your organisation and what it specifically tests
Reconcile the fixed asset register to the general ledger at least monthly
Maintain a documented, consistently applied capitalisation and depreciation policy
Require evidence (invoice, authorisation) before any asset is added to the register
Require evidence (sale note, write-off authorisation) before any asset is removed
Conduct physical verification of a sample of assets at least annually
Record funding source on every capital asset, especially grant-funded items
Review the prior audit's findings and confirm each has been actioned
Prepare a standard evidence package ahead of a scheduled audit, rather than assembling it from scratch
For academy trusts, confirm internal scrutiny and external audit are both scheduled and distinct

Frequently Asked Questions

What documents does an auditor need to see for fixed assets?

Typically the fixed asset register as at the audit date reconciled to the general ledger, the accounting policy for capitalisation and depreciation, purchase invoices for a sample of additions, and evidence for a sample of disposals. Auditors may also request physical verification of a sample of assets.

How often should the fixed asset register be reconciled to the general ledger?

At least monthly. A discrepancy caught within weeks of the transaction that caused it is quick to resolve; the same discrepancy discovered months later, under audit pressure, can take days to trace.

What is the difference between an academy trust's internal scrutiny and its external audit?

Internal scrutiny is an independent review, required by the Academy Trust Handbook, that tests regularity, propriety and value for money in how the trust manages its finances, including capital spending. The external audit is a statutory audit of the trust's annual accounts, testing whether they give a true and fair view under the relevant accounting framework. Trusts need both — one does not substitute for the other.

What are "ghost assets" and why do auditors care?

Ghost assets are items still shown on the fixed asset register that can no longer be physically located — often because they were disposed of, lost, or stolen without the register being updated. Auditors care because they indicate a weakness in the controls around asset tracking, and because they overstate the recorded value of the business's assets.

Do small companies in the UK need a statutory audit of their fixed assets?

Many small companies qualify for audit exemption under thresholds set out in the Companies Act 2006, based on turnover, balance sheet total, and employee numbers. These thresholds have changed over time, so it's worth confirming current audit exemption status with your accountant rather than assuming last year's position still applies.

How far back should disposal evidence be kept?

This depends on your organisation's document retention policy, which should reflect both statutory requirements (such as the six-year general record-keeping period commonly applied for company records) and practical audit needs. As a minimum, disposal evidence should be retained until the accounts covering that period have been audited and any related tax position finalised.

What's the fastest way to prepare for a fixed asset audit?

Don't treat audit preparation as a separate project — build the habits that make the register audit-ready year-round: reconcile to the ledger monthly, capture evidence at the point an asset is added or disposed of, and review a sample of assets physically on a regular cadence. Organisations that do this spend audit week answering queries, not reconstructing records.

Conclusion

A fixed asset audit is rarely difficult because of what the auditor asks for — the requests are predictable and largely the same every year. It becomes difficult when the underlying records don't hold up: a register that doesn't reconcile to the ledger, disposals without evidence, or a depreciation policy applied inconsistently between assets that should be treated the same way.

The organisations that find audit season straightforward are the ones that never really stopped preparing for it — reconciliation happens monthly, evidence is captured at the point of the transaction, and physical verification is routine rather than an annual scramble. That discipline is what an asset register is for, and it's exactly what separates a smooth audit from a stressful one.