When UKI auditors start the audit process for lease accounting under FRS 102, their focus is on whether the lease accounting process is reliable and repeatable. That early view shapes how the rest of the audit runs.

If auditors are comfortable with lease completeness, judgement consistency, and evidence quality, audit scope usually remains contained. If they are not, testing expands and timelines slip.

Here’s a practical way to pressure-test your lease accounting against how UKI auditors approach FRS 102 audits.

1. Lease Population Completeness

When auditors check lease completeness, they are assessing whether lease identification is systematic or has been reconstructed retrospectively for audit.

Questions auditors will be asking

• Was the lease population maintained throughout the year, or only assembled for the audit?
• How do you know the portfolio is complete, and nothing is missing?
• Who validates new leases during the year?

If the answers rely on manual checks or individual knowledge, audit scope typically expands.

As you review your own position, check whether you can clearly demonstrate the following:

• There is a defined owner responsible for lease completeness throughout the year
• New leases are identified and reviewed on a recurring basis, not only at year-end
• Embedded leases are identified using documented criteria rather than informal judgement
• Exemptions are applied consistently and supported by concurrent documentation

What gives auditors comfort is evidence of an ongoing process. A lease register maintained throughout the year, supported by periodic reviews, is far more persuasive than a final list produced for audit purposes.

2. Judgements and Estimates

Judgements under FRS 102 are expected. What auditors test is whether those judgements are applied consistently and supported by evidence.

Questions auditors will be asking

• Walk me through how you reached this “reasonably certain” conclusion.
• Why is this lease term different from a similar lease elsewhere in the portfolio?
• How was the discount rate determined, and has the methodology changed?
• Who approved this judgement, and when?

Auditors will accept reasonable methodologies applied consistently across similar leases. Challenge arises when assumptions shift between periods, differ across similar leases, or lack clear approval.

As you review your own position, check whether you can clearly demonstrate that:

• Similar leases are assessed using consistent assumptions and approaches
• Key judgements around lease term, discount rates, and exemptions are documented and approved when decisions are made
• Changes in assumptions between periods are intentional and supported
• There is clarity over which judgements require senior approval and which do not

Good judgement documentation explains how and why decisions were made. Reconstructed explanations or inconsistent treatment of similar leases typically lead to expanded audit testing.

3. Lease Modifications and Change Identification

Most lease accounting issues arise because changes were not identified when they occurred, not because the accounting mechanics were wrong.

Questions auditors will be asking

• How do you know you have identified all lease modifications this year?
• How are lease changes communicated from the business to finance?
• When are reassessment and remeasurement triggers considered?
• How do you validate the effective date of a change?

Auditors trace commercial events to accounting outcomes. Late identification of extensions, rent changes, or break decisions typically expands audit scope.

As you review your own position, check whether you can clearly demonstrate that:

• Commercial lease decisions are linked to finance review when changes are agreed
• Extensions, rent changes, and break decisions are clearly documented and approved
• Effective dates are validated and reassessment triggers are consistently considered
• Lease modifications are identified through defined processes, not period-end discovery

Auditors gain comfort when lease changes are treated as routine events through systematic processes, not reactive fixes.

4. Audit Evidence and Reproducibility

Audit outcomes often hinge on whether lease accounting results can be independently reproduced by the audit team using the evidence provided.

Questions auditors will be asking

• Can we independently reproduce these calculations using the evidence provided?
• Can we trace movements in lease balances through the year?
• How do you know this process operates consistently, not just at period end?
• Where can we see when changes were made and why?

Auditors reperform calculations independently. Where results cannot be followed without explanation, or where evidence feels constructed for audit, testing typically increases.

As you review your own position, check whether you can clearly demonstrate that:

• Lease calculations can be followed and reproduced without relying on individual explanations
• Changes to lease balances are traceable through the year with a clear audit trail
• Supporting documentation reflects decisions as they occurred, not reconstructed narratives
• Controls around lease accounting operate consistently throughout the year

What gives auditors comfort is not perfect documentation, but evidence that can be relied on without repeated explanation or reconstruction.

Under FRS 102, Audit Outcomes Are Decided Before Testing Begins

Audit readiness is about being able to answer auditor questions clearly and consistently, before they are asked. If you can work through the questions in this guide and answer them with confidence, you are addressing the areas UK auditors focus on most. In practice, that is what reduces unnecessary audit delays, rework, and disruption during audit season.