The Auditor’s Checklist: Is Your Lease Portfolio Ready for Year-End?

In the first few years of IFRS 16, external auditors were often satisfied with a basic spreadsheet and a reasonable attempt at adoption. That era of "lenient compliance" is over. Because lease accounting involves high levels of management judgment—particularly around discount rates and lease terms—it has become a focal point for Material Misstatement risks. To pass substantive testing, organizations must prove the completeness of lease data and maintain a robust audit trail. For a full technical breakdown, see our IFRS 16 and FRS 102 Guide.

1. The Completeness Test: Looking for "Hidden" Leases

The auditor's first question is always: "How do you know this list is complete?" They will perform a forensic scan of your expenses to find payments that should be on the balance sheet but aren't.

• Scan GL accounts for "Rent," "Hire," or "Lease" keywords.
• Review service agreements for dedicated physical space or equipment.
• Check for "Right of Substitution" clauses that might prove a lease does not exist.

2. Defending the Incremental Borrowing Rate (IBR)

You cannot simply pick a flat rate for your entire portfolio. Auditors expect a documented IBR Methodology that stands up to scrutiny.

A defensible IBR must account for:

• Term Impact: A 10-year lease should generally have a higher IBR than a 2-year lease.
• Asset Type: The risk profile of a vehicle is different from a prime office building.
• Entity Risk: The rate must reflect your company's actual cost of debt in the current environment.

3. Mastering the Disclosure Note Reconciliations

The disclosure requirements (IFRS 16.51-60) are where most technical errors are discovered. Auditors will attempt to "roll forward" your balances from the previous year-end to the current date, checking for alignment with your chosen transition method.

Be prepared to explain:

• The move between Short-term and Long-term liabilities.
• Interest expense vs. Cash outflow for principal repayments.
• The total P&L impact of leases not on the balance sheet (Low-value / Short-term).

4. The Modification Audit Trail

If you modified a lease during the year (e.g., extended a term or adjusted rent), auditors will want to see the Before and After schedules. They will check if you updated the IBR on the exact effective date of the modification. Failure to capture these post-transition changes correctly is a common audit finding.

5. Why System-Based Governance Wins

The easiest way to pass an audit is to prove System Reliability. If you can show that your calculations are generated by a validated system like QuantLease, the auditor can rely on "System Controls" rather than testing every line of code in an Excel formula.