FRS 102 Section 20 Leases: Group Finance Mechanics for 2026

The accounting theory behind revised FRS 102 Section 20 has been well covered. What receives less attention is the group reporting infrastructure that must be in place and tested before the first affected year end arrives - a trustworthy lease register, leases running through the monthly close, lender conversations about revised covenant metrics, and a traceable transition adjustment in the consolidation pack. Groups with December year ends have months, not years, to get this right.

What changed and when

The FRC's periodic review of FRS 102 introduced a right-of-use asset and lease liability model for lessees that is closely aligned to IFRS 16. The amendments apply to accounting periods beginning on or after 1 January 2026. For a group with a 31 December year end, the first affected period opened on 1 January 2026 and the first set of affected statutory accounts will be filed in the course of 2027. Transition is modified retrospective: comparatives are not restated, and the cumulative effect of applying the new standard lands as an adjustment to opening retained earnings at 1 January 2026. The practical exemptions for short-term leases (term of twelve months or less at the commencement date) and leases of low-value assets remain available, but the group must apply them consistently across entities. The transition itself is not a one-off journal for the auditors to post - it is the opening position from which every subsequent monthly movement flows, which is why the integrity of the underlying data matters so much.

The lease register as the group's source of truth

A consolidation can only be as reliable as the data fed into it. For leases, that data comes from the lease register, and most groups discovering their registers are not consolidation-ready in early 2026 should not be surprised. Registers assembled for disclosure purposes under old FRS 102 were often incomplete, entity-level spreadsheets with inconsistent fields. The new model demands something different.

• Completeness - every lease, not just property. Vehicles, plant, IT hardware, and embedded leases within service and outsourcing contracts all need to be identified and assessed.
• One register for the group - fragmented entity-level lists make consolidation eliminations impossible to run efficiently and create version control risk.
• Clear entity ownership - each lease sits in a specific legal entity, drives right-of-use asset and lease liability in that entity's trial balance, and rolls into the consolidation from that entity's pack.
• Embedded lease assessments documented - where a service contract contains an identified asset the supplier does not substitute in practice, the lease component must be separated unless the group elects the practical expedient not to do so, and that election must be applied consistently.
• Exemption elections recorded by lease, by entity - the short-term and low-value exemptions reduce complexity but create audit exposure if applied inconsistently or without evidence.
• Incremental borrowing rates by entity and currency - the IBR drives the liability calculation and must be supportable, particularly where a subsidiary's credit profile differs materially from the parent's.

Some groups are housing the lease sub-ledger inside their consolidation platform - CCH Tagetik, for instance, can hold lease schedules and consolidation data in the same environment, reducing the number of manual hand-offs - but the principle holds regardless of tooling: the register must be the single source from which all downstream numbers flow.

Running leases through the monthly close

Bolting lease adjustments on at year end was manageable under the old disclosure-only model. Under the new model it is not. Right-of-use asset depreciation and lease liability interest unwind affect reported EBITDA, operating profit and net debt every month, and any group that leaves these as year-end journals will find its monthly management accounts presenting a misleading picture of performance throughout the year. The close process needs to accommodate several recurring movements.

• Straight-line depreciation of right-of-use assets - calculated from the register and posted to the relevant cost centre in each entity each period.
• Effective interest unwind on lease liabilities - the finance charge is not equal to the cash rental payment, and the difference must be reflected correctly to avoid distorting cash flow from operations versus financing.
• Remeasurements on modifications and rent reviews - a change in lease term, a rent review settling at a new amount, or a contract renegotiation triggers a remeasurement of the liability and a corresponding adjustment to the right-of-use asset, and these must be captured promptly rather than accumulated.
• Intercompany leases - where one group entity leases an asset to another, the lessor accounting and lessee accounting must both be recorded, and the intercompany balances eliminated in the consolidation. These eliminations are often overlooked during implementation and surface as consolidation differences at year end.

The practical consequence is that the lease register needs to be live - updated when modifications occur and capable of producing period-by-period schedules the close team can post without manual recalculation. A static spreadsheet updated quarterly will create close problems.

Covenant and KPI recasts

The shift from operating lease expense to depreciation plus interest changes several metrics that matter to lenders and to internal performance frameworks. This is not an accounting technicality - for groups with debt facilities referencing FRS 102 EBITDA or net debt, the numbers in the covenant test change on 1 January 2026 even if the underlying business does not. The following table summarises the directional effect on commonly used measures.

Groups should be having these conversations with lenders now. Most facility agreements include a material change clause or allow for frozen GAAP elections, but neither route is automatic. Waiting until the December 2026 accounts are drafted before notifying a lender that net debt has risen and EBITDA cover has shifted is poor practice and, in some facilities, a technical default risk. Agree the treatment - whether the covenant tests will use reported FRS 102 numbers or adjusted figures that strip out lease liabilities - before the year end, and document the agreement.

Landing the transition adjustment in the consolidation pack

The modified retrospective transition produces a cumulative adjustment to opening retained earnings at 1 January 2026. For a group, this means every entity with leases generates an opening adjustment, and those adjustments must aggregate correctly in the consolidation. The audit trail runs from the lease register schedule, through the entity-level opening journal, into the entity's opening trial balance, and then into the consolidation pack. If any link in that chain is broken or undocumented, the group auditor will rebuild it - at cost to both time and fees.

• Entity-level transition workings retained as a permanent file - the calculation of the opening right-of-use asset, opening lease liability and the net retained earnings adjustment for each entity, cross-referenced to the register.
• Consolidation pack opening balances reconciled to the sum of entity adjustments - any difference is likely an intercompany lease that has not been eliminated.
• Disclosure of transition approach in the group accounts - FRS 102 requires disclosure of the transition method adopted and the practical expedients applied; these must be consistent with what was actually done.
• Comparatives clearly labelled as prepared under the prior standard - the absence of restatement is a feature of modified retrospective, not an oversight, but the accounts must make this clear to avoid reader confusion.

A close checklist for December 2026 year ends

The following items represent the practical minimum that should be resolved before the December 2026 year-end close begins in earnest.

1. Group lease register complete, entity-assigned and signed off by entity finance leads - including embedded lease assessments and documented exemption elections.
2. Incremental borrowing rates approved and documented for each entity and currency.
3. Opening 1 January 2026 transition journals prepared, reviewed and posted in each entity's system.
4. Right-of-use asset depreciation and lease liability interest unwind running through monthly close from January 2026 - not deferred to year end.
5. Remeasurement process defined - clear ownership for capturing lease modifications and rent reviews as they occur during the year.
6. Intercompany lease eliminations built into the consolidation model and tested.
7. Covenant recast completed and lender conversation documented, with any agreed frozen GAAP or adjusted metric approach in writing.
8. Management accounts KPI definitions updated to reflect the new treatment, with prior-period comparative notes where presented internally.
9. Transition disclosure drafted and agreed with auditors ahead of year end.
10. Audit trail from register to journal to consolidation pack reviewed by group reporting lead and ready for auditor access at the close of the year.

The transition date has passed. The question now is whether the infrastructure behind the numbers is robust enough to withstand a year-end audit and a lender covenant test at the same time.