On 27 March 2024, the Financial Reporting Council issued amendments to FRS 102, following its second periodic review, with the changes taking effect for accounting periods beginning on or after 1 January 2026. It’s the biggest update to UK GAAP in a decade. Two areas carry the most weight: how leases are accounted for, and how revenue is recognised. Both sections have been substantially rewritten, and both are now live for clients whose accounting period has already started. Â
Take a client who rents their offices, leases a handful of company cars, and has a couple of equipment hire agreements running. Under the old rules, none of that appeared on their balance sheet. Under the rules that came into force this January, all of it does. That’s the most visible consequence of the FRS 102 changes 2026.Â
For practices across the UK and Ireland, the practical consequences are already in motion. Client accounts look different, financial ratios have changed, and some conversations with banks and lenders are long overdue. Â
This article covers what’s actually changed, what it means for the businesses you work with, and where the advisory opportunities sit for the months ahead.Â
What Changed and Why?
The FRC’s stated aim is to bring UK financial reporting closer to international standards, specifically IFRS 15 on revenue and IFRS 16 on leases. This doesn’t make UK GAAP identical to IFRS, and some simplifications remain for smaller entities. But the gap between the two frameworks has narrowed significantly, particularly in the areas that affect the most businesses day to day.Â
The changes to lease accounting under FRS 102 and the revised revenue rules are where the practical impact lies for most clients. A retailer selling goods over the counter won’t notice much. But, a professional services firm with long-term contracts and rented premises will.Â
The Lease Changes and Why They Matter Most
For most practices, the FRS 102 operating lease changes will be the change that keeps them busiest over the coming months.
Under the old rules, operating lease payments simply appeared as an expense in the profit and loss account. The asset and the commitment to pay future rent stayed off the balance sheet entirely. Under the amended standard, that familiar operating lease rental expense will no longer appear for most leases. Instead, companies recognise depreciation on a right-of-use asset and a finance charge on the corresponding lease liability.
In plain terms: if a client rents offices, vehicles, or equipment, those commitments now sit on the balance sheet. The Right-of-Use asset represents their right to use that property or equipment for the remaining lease term. The lease liability represents the present value of future payments they’re committed to making.
There are two practical exemptions worth knowing. Short-term leases of less than 12 months and leases of low-value assets can still be expensed on a straight-line basis. For most property and vehicle portfolios, though, the new approach applies.
What this does to the numbers?
Although the total expense recognised over the full lease term is broadly the same, the pattern changes. Costs are typically higher at the start of a lease and reduce over time. This shift can have a noticeable impact on reported profit, EBITDA, and other performance measures, even though the underlying cash flows are unchanged.Â
EBITDA actually improves under the new model, because depreciation and interest sit below the EBITDA line. But gearing ratios rise, and return on assets falls. For clients with loan covenants tied to net debt or gearing metrics, that is not a theoretical concern. It is an urgent conversation.Â
On transition, companies must apply a modified retrospective approach. Comparative period information is not restated. Instead, a cumulative catch-up adjustment is recognised in retained earnings at the date of initial application. For December year-ends, that date is 1 January 2026.Â
The FRS 102 lease changes effective date has already passed for many clients. For those with a December year-end, the first affected accounts are for the year ending 31 December 2026, currently in progress.Â
Revenue Recognition and the New Five-Step Model
The FRS 102 revenue recognition replace the previous rules in Section 23 with a structured five-step model drawn closely from IFRS 15. The steps are: Â
- Identify the contract,Â
- Identify the separate performance obligations within it,Â
- Determine the transaction price,Â
- Allocate that price to each obligation, and finally,Â
- Recognise revenue as each obligation is satisfied.Â
For simple transactions, this changes little. A firm billing a fixed fee for a completed piece of work will barely notice. The complications arise with bundled arrangements, variable pricing, or contracts where goods and services are delivered at different points in time.Â
Construction businesses, software companies, and professional services firms with multi-year engagements are most likely to see real differences in when and how revenue is recognised. The disclosure requirements are also more demanding, requiring clearer breakdowns of revenue by category and timing, and information about contract balances and significant judgements.Â
What This Means for Accounting Firms?
The most immediate task for accounting firms all across UK and Ireland is identifying which clients are most affected. Any client with property leases, vehicle fleets, or equipment hire agreements needs to go through a lease inventory. For clients with complex or numerous leases, this is a significant piece of work. Accounting software that automates the Right-of-Use and liability calculations will save considerable time.Â
The bank covenant issue is one that practices are well placed to help clients navigate. Many clients will not have thought through how their reported debt metrics change under the lease changes FRS 102 introduces. A proactive conversation now, before accounts are finalised, is far more useful than discovering a technical covenant breach afterwards.Â
Deferred tax is the other area that catches firms out. Right-of-use assets and lease liabilities that weren’t previously on the balance sheet create new temporary differences between accounting and tax bases. HMRC has confirmed the changes don’t automatically alter how corporation tax is calculated, but the deferred tax workings need revisiting for any client with qualifying leases.Â
There is also a genuine advisory opportunity here. Clients with lease-heavy portfolios, retail businesses, logistics companies, professional services firms with multiple office locations, all need guidance on transition, on how their accounts will read differently, and on what those changes communicate to lenders and investors. That is exactly the kind of conversation that builds long-term client relationships.Â
The practices that treat these FRS 102 changes 2026 purely as a compliance task will miss the point. The ones that use them as a prompt for a wider client conversation will come out of this year with stronger relationships and more engaged clients. If you’d like to talk through how the transition affects your practice, visit us and our team will come back to you.Â
What is the FRS 102 lease changes effective date?
The amendments apply to accounting periods beginning on or after 1 January 2026. For a December year-end, the first affected accounts are for the year ending 31 December 2026. Early adoption was permitted from 1 January 2025.
Do all leases need to come onto the balance sheet?
Most do, but there are two exemptions. Short-term leases of 12 months or less and leases of low-value assets can still be expensed on a straight-line basis. For most property and vehicle commitments, the new on-balance-sheet treatment applies.
Do comparative figures need to be restated?
No. The transition uses a modified retrospective approach, meaning comparative period information is not restated. A cumulative adjustment goes to opening retained earnings at the transition date instead.
What should an accounting practice be telling clients right now?
Start with the lease inventory. Pull together every rental and hire agreement, identify which ones fall within the new rules, and model the balance sheet impact. Then talk to clients with loan covenants before accounts are finalised. Deferred tax positions also need revisiting for any client with qualifying leases.
