FRS 102 first period-end close: A practical guide for UK and Irish finance teams
Under FRS 102 Section 20, the first period-end close isn't just longer: it's structurally different. Interest, depreciation, reconciliation, and what auditors will ask for.
The first thing Sarah noticed was that the numbers didn't match. She'd pulled the period-end figures for January 2026 (the first close under FRS 102 Section 20) and the lease expense showing in the P&L was £10,648. The cash payment was £10,000. She'd checked the journal twice, and both times it came back the same way: interest and depreciation, two lines where there used to be one, and a balance sheet that had moved in ways she hadn't seen before. The transition was done. The opening balances were in. What she hadn't expected was how differently the close itself would feel.
This guide covers the operational mechanics of the first FRS 102 period-end close: the five calculations that run every close, a numbered step sequence with journal entries, the reconciliation picture, and the audit trail you'll need to build. It assumes you've already transitioned: opening balances are in, the register is complete. The transition mindset guide covers what came before this moment. This is what happens next.
Written with input from Maeve O'Connell, LOIS Head of EMEA and CA-qualified accountant with over 25 years of leasing finance experience. Updated August 2026.
What's different at period-end now
Under the old FRS 102 operating lease model, period-end was simple: book the rental charge, match it to the accruals ledger, move on. One P&L line. No balance sheet movement. No split between principal and interest.
Under FRS 102 Section 20, every period-end now involves at least four balance sheet movements and two P&L lines. The lease liability unwinds using the effective interest method, meaning interest is front-loaded and declines each period as the liability falls. The ROU asset depreciates separately, typically straight-line. Neither figure equals the cash payment. In most early periods, total P&L expense exceeds cash paid, because the depreciation charge is non-cash and in the early periods of a typical lease it runs ahead of the principal repayment component of the rental.
The other structural change is where these charges land in the income statement. Depreciation on the ROU asset sits above EBITDA, in the same line as depreciation on owned assets. Interest on the lease liability sits below EBITDA, in finance costs. For any business with covenants or performance metrics tied to EBITDA, that split matters, and it's something auditors will verify.
- One rent charge becomes two P&L lines: interest expense (finance costs, below EBITDA) and depreciation on the ROU asset (operating costs, above EBITDA).
- Cash paid and P&L expense diverge: total expense rarely equals the lease payment. In early periods, P&L typically exceeds cash paid because depreciation is non-cash.
- The balance sheet now moves every period: lease liability reduces as principal is repaid; ROU asset reduces as depreciation accumulates. Both need to reconcile to the GL.
- The current/non-current split of the liability must be updated: each period the amount falling due within 12 months changes, requiring a reclassification entry.
The five calculations that run every close
Every FRS 102 Section 20 period-end close involves five calculations, in this order. Get the sequence right and the rest follows; miss one or run them out of order and the reconciliation won't close.
Note: the calculations in this section are simplified for illustrative purposes. LOIS performs exact daily calculations based on either nominal or effective interest, depending on the structure of each lease.
1. Interest expense on the lease liability. Using the effective interest method, interest is calculated by applying the periodic rate (derived from the OBR) to the opening lease liability balance for the period. For the full mechanics of how the OBR is determined and documented, see the FRS 102 discount rates guide.
2. Depreciation of the ROU asset. The ROU asset is depreciated straight-line over the shorter of the lease term and the asset's useful economic life. For a 36-month lease at £335,574, the monthly depreciation charge is £9,321. For a full explanation of how ROU assets are initially measured and carried, see what is a right-of-use asset?
3. Remeasurement check. Before any close entries post, confirm that no remeasurement event occurred during the period and hasn't been actioned yet. The detailed treatment of what triggers a remeasurement is covered in the FRS 102 modifications and reassessments guide.
4. Disclosure preparation. FRS 102 Section 20 requires disclosures every reporting period: the maturity analysis of undiscounted lease payments, the ROU asset movement note by class, depreciation charges, interest expense, and any short-term or low-value lease costs expensed in the period. The full disclosure requirements are set out in the FRS 102 Section 20 disclosure requirements guide.
5. GL reconciliation. The closing subledger balance for each lease - ROU asset (cost, accumulated depreciation, NBV), lease liability (current, non-current) - must agree to the GL. This isn't a high-level sweep; it's a lease-by-lease reconciliation. Any break needs explaining and correcting before close is signed off.
A worked close sequence: step by step
Here's the full close sequence for a typical FRS 102 Section 20 portfolio, in the order the entries should be made. The example uses a single lease: £335,574 opening liability, 36-month term, 5% OBR, £10,000 monthly payment.
Check for pending remeasurements
Before any journal entries, review all leases for events that occurred during the period but haven't been processed. Action these first.
Post interest expense
Apply the periodic rate to the opening lease liability. At 5% p.a. on £335,574, period one interest is £1,326. Dr Interest expense £1,326 / Cr Lease liability £1,326.
Post ROU asset depreciation
Straight-line over 36 months: £335,574 / 36 = £9,321 per month. Dr Depreciation charge £9,321 / Cr ROU asset accumulated depreciation £9,321. After period one, ROU asset NBV = £326,253.
Post the current/non-current reclassification
Update the split of the lease liability between amounts due within 12 months and beyond. On a properly integrated system this runs automatically; on a spreadsheet it's a manual step that's easy to miss.
Post the payment entry
Record the cash payment. Dr Lease liability £10,000 / Cr Cash (or AP) £10,000. £1,326 is interest; £8,674 is principal. Closing lease liability for month one: £326,901.
Run the subledger-to-GL reconciliation
Confirm the system's closing ROU asset NBV, accumulated depreciation, current lease liability, and non-current lease liability all agree to the corresponding GL balances.
Update disclosure workings
Refresh the maturity analysis and ROU asset movement note. Do this monthly rather than scrambling at year-end.
The reconciliation: what "agreed" looks like and what breaks it
A signed-off FRS 102 close has one hard requirement: the lease subledger and the GL must agree, lease by lease. "Agreed" means: ROU asset cost, accumulated depreciation, current lease liability, and non-current lease liability all match between the subledger and the GL.
If all four reconcile, the close is clean. Software with proper GL integration can produce a locked-down periodic report that agrees the lease subledger to the GL balances automatically, avoiding a detailed reconciliation process, and that report is what auditors will ask for.
What breaks the reconciliation at the first close? Four things come up repeatedly: opening balance mismatches; GL code mapping errors; a remeasurement processed in the system but whose journals weren't posted to the GL; and a lease included in the register but not in the GL opening entries, or vice versa. Every one of these is correctable before sign-off. None of them is correctable after the auditor has already seen an unexplained variance in the working papers.
What auditors ask for at the first FRS 102 period-end audit
Auditors reviewing an FRS 102 Section 20 lease portfolio for the first time will test the calculation engine, not just the outputs. Finance teams that have those inputs organised before fieldwork begins move through audit significantly faster than those assembling them under pressure.
- The complete lease register with lease term, commencement date, payment schedule, and discount rate for each on-balance-sheet lease.
- Discount rate evidence: bank facility documentation, market rate benchmarking, or the supporting OBR calculation.
- Amortisation schedules tracing from the opening balance to each period-end close, with closing balances matching the GL.
- The signed-off subledger-to-GL reconciliation. If this doesn't exist as a document, the auditor will create their own version, and it will take longer.
- Disclosure workings showing the maturity analysis and ROU movement note tie to the balance sheet. For a full list of what the notes must contain, see the FRS 102 disclosure requirements guide.
Common mistakes at the first close
Using the wrong depreciation period. FRS 102 Section 20 requires depreciating the ROU asset over the shorter of the lease term and the asset's useful economic life. Teams sometimes depreciate over the full useful economic life when the lease runs shorter, understating the annual charge and overstating the closing NBV.
Missing a remeasurement and closing anyway. A rent review took effect during the first period. Nobody flagged it before close. Every subsequent period inherits an incorrect opening liability and the GL diverges from reality one compounding step at a time.
Carrying a transition error into the first close. The opening balance was slightly off. In month one it shows up as a GL reconciliation break. Trace it back, correct the opening entry, and post a correcting journal with a clear narrative before sign-off.
Not splitting interest from principal in cash flow reporting. Under FRS 102 Section 20, the principal component of lease payments is a financing activity in the cash flow statement. Teams that carry over the old treatment will produce a cash flow statement that doesn't reconcile.
Two ways to run the close: in-house software vs. expert-validated managed service
At a functional level, the close comes down to whether your team is running the calculations and producing the journals, or whether a qualified expert is doing it and delivering the output to you.
Self-service software. Your team operates the system: they load remeasurements, run period-end routines, extract journals, and reconcile to the GL. The system enforces the calculations but the data inputs, the remeasurement decisions, and the GL reconciliation review are your team's responsibility.
Expert-validated managed service. LOIS Managed Service works like this: CA-qualified accountants validate all lease data and proactively identify discrepancies, carry out expert review of all FRS 102 Section 20 calculations, prepare journals ready for posting, and deliver a monthly audit-ready reporting pack. Your team reviews and posts. The calculation risk sits with the experts, not with a finance controller running their first FRS 102 close.
The managed service model is particularly suited to teams approaching their first year-end audit under FRS 102, teams that transitioned from spreadsheets and are still building confidence in the calculations, and organisations with larger or more complex portfolios where a missed remeasurement carries material risk. For a fuller comparison of the two models, see the FRS 102 managed service vs self-service guide.
Frequently asked questions
Why doesn't the P&L expense equal the cash lease payment?
Under FRS 102 Section 20, total P&L expense comprises interest on the lease liability (a cash item) and depreciation on the ROU asset (a non-cash item). The cash payment splits into interest and principal repayment, with principal reducing the balance sheet liability rather than the P&L. This difference reflects the non-cash depreciation charge: the £9,321 depreciation has no cash impact, while the £1,326 interest expense is the finance cost recognised for the period.
What happens if we find a remeasurement that should have been processed before close?
If the remeasurement event took effect during the period, it should be processed before the period's routine journals run. If discovered after close has been signed off, record the remeasurement in the current period with a clear narrative, adjusting the opening liability to what it should have been at the effective date. Depending on materiality and timing, the auditor may treat this as a prior-period error.
Do we need to prepare disclosure workings every month, or only at year-end?
The disclosure requirement under FRS 102 Section 20 applies to the annual accounts, not to interim periods. But keeping the disclosure workings updated each close means the year-end output is ready as a by-product of the routine process, rather than built from scratch at year-end under time pressure.
How do we classify lease payments in the cash flow statement?
Under FRS 102 Section 20, the principal component of lease payments (the part that reduces the lease liability) is classified as a financing activity. The interest component can be classified as either operating or financing activities, provided the classification is consistent across periods and disclosed.
What if our subledger and GL don't agree at the first close?
A subledger-to-GL discrepancy at the first close almost always traces to one of four causes: a mismatch in the opening balance; a GL code mapping error in the journal template; a remeasurement processed in the system but whose journals weren't posted to the GL; or a lease in the register with no corresponding GL entry. Trace the discrepancy to its source, post a correcting journal with a narrative, and document the correction in the working papers.
Want expert oversight rather than running the close alone?
LOIS Managed Service pairs CA-qualified lease accounting specialists with our proven platform. Each month, your data is validated, calculations are reviewed, journals are prepared and reconciled, and a complete audit-ready reporting pack is delivered, ready for posting and ready for your auditor.
Learn about LOIS Managed Service FRS 102 lease accounting in LOIS