If your accountant has mentioned "FRS 102" and you nodded along without quite knowing what it meant, you are in good company. It sits behind almost every set of UK company accounts, but it rarely gets explained in plain terms.
FRS 102 is the main accounting standard used to prepare statutory accounts in the UK and Ireland. In short, it is the rulebook that tells your accounts how to recognise, measure and present things like revenue, leases, stock and assets, so that the figures mean the same thing from one company to the next.
This guide explains what FRS 102 is, who has to use it, how it differs from the simpler micro-entity standard, and the significant changes arriving for accounting periods beginning on or after 1 January 2026. It is written for directors of UK limited companies and the people who keep their books.
If you would rather hand the whole thing over, preparing compliant accounts under FRS 102 is part of our statutory accounts service.
What is FRS 102 in simple terms?
FRS 102 is "The Financial Reporting Standard applicable in the UK and Republic of Ireland", issued and maintained by the Financial Reporting Council (the FRC), the UK's independent accounting and audit regulator. It is the cornerstone of what people call UK GAAP, meaning UK Generally Accepted Accounting Practice.
Put plainly, it is the single standard that most small and medium-sized UK companies use to build their annual financial statements. It sets out how each item in your accounts should be treated, so a reader (a lender, an investor, HMRC, or Companies House) can rely on them being prepared on a consistent, recognised basis.
FRS 102 replaced a patchwork of older UK standards (the "old UK GAAP", or FRSSE and the legacy FRS suite) for periods beginning on or after 1 January 2015. It is deliberately a single, self-contained standard rather than the much heavier full International Financial Reporting Standards (IFRS), which large listed groups use.
Who has to use FRS 102?
Most UK private companies that prepare statutory accounts use FRS 102. It is the default standard for small and medium-sized entities that do not report under full IFRS and are too big (or simply choose not to) report under the cut-down micro-entity standard.
In practice, you will typically be using FRS 102 if you are:
- A small company that files full or "abridged" small-company accounts and is above the micro-entity size limits.
- A medium-sized or larger private company that does not use full IFRS.
- A group preparing consolidated accounts under UK GAAP.
Smaller companies that qualify as "small" can apply the reduced disclosure framework within FRS 102, often labelled Section 1A, which keeps the same recognition and measurement rules but strips back the notes you have to publish. Very small companies may instead qualify for FRS 105 (covered below).
Whether you count as "small" or "micro" depends on the Companies Act size thresholds, which were increased for financial years beginning on or after 6 April 2025. A company is small if it meets at least two of three tests: turnover of £15 million or less, a balance sheet total of £7.5 million or less, and 50 employees or fewer.
What does FRS 102 actually cover?
FRS 102 is organised into sections, each dealing with a type of transaction or balance. You do not need to memorise them, but it helps to know the standard touches almost everything in your accounts. The headline areas include:
- Revenue: when and how much income you recognise.
- Leases: how you account for assets you rent rather than buy.
- Tangible and intangible fixed assets: how you carry and depreciate kit, property and intangibles like software.
- Stock (inventories): how you value unsold goods.
- Financial instruments: loans, investments and similar.
- Provisions and contingencies: liabilities that are uncertain in timing or amount.
- Tax: current and deferred tax in the accounts.
The point of all this is comparability. Because every FRS 102 company applies the same recognition and measurement rules, your accounts can be read and trusted by outsiders, and they feed cleanly into your Corporation Tax computation. If you want the figures from your books to flow correctly into both your statutory accounts and your tax return, that join-up is exactly what our bookkeeping service is built around.
FRS 102 vs FRS 105: which one applies to you?
FRS 105 is the much shorter standard for micro-entities, the smallest companies. It is a stripped-down version of FRS 102 with simpler rules, fewer disclosures, and no option to revalue assets or recognise deferred tax.
The deciding factor is your size. A company qualifies as a micro-entity if it meets at least two of three tests: turnover of £1 million or less, a balance sheet total of £500,000 or less, and 10 employees or fewer (the thresholds that apply for financial years beginning on or after 6 April 2025).
| Feature | FRS 105 (micro-entity) | FRS 102 (small and larger) |
|---|---|---|
| Who it is for | Micro-entities meeting the micro size limits | Small, medium and larger private companies |
| Turnover test | £1 million or less | £15 million or less to qualify as small |
| Disclosure level | Minimal | Fuller, with a reduced regime (Section 1A) for small companies |
| Revaluations and deferred tax | Not permitted | Permitted |
| Complexity | Lowest | Moderate |
A quick word of caution. The simplest standard is not always the cheapest in the long run. Micro-entity accounts give a lender or buyer very little to look at, which can be a problem if you are seeking finance or planning to sell. Choosing the right framework is a judgement call, and it is one we help directors make as part of preparing their statutory accounts.
What is changing under the Periodic Review 2024?
The FRC reviews FRS 102 periodically. Its most recent overhaul, the Periodic Review 2024, was issued in March 2024, and most of the amendments take effect for accounting periods beginning on or after 1 January 2026. Two changes stand out because they will actually move the numbers in many companies' accounts.
1. A new revenue model. Section 23 (Revenue) has been rewritten to broadly follow the five-step model in IFRS 15, with some simplifications. The focus shifts from transferring the "risks and rewards" of a sale to transferring "control" of goods or services to the customer. For straightforward businesses the effect may be small, but for companies with bundled products, long contracts or staged delivery, the timing of recognised revenue can change.
2. On-balance-sheet leases for lessees. This is the big one. Section 20 (Leases) has been revised to follow the approach in IFRS 16. The old split between "operating" and "finance" leases for lessees largely disappears. Instead, lessees recognise a "right-of-use" asset and a matching lease liability on the balance sheet for most leases, with exemptions for short-term leases and low-value assets.
In everyday terms, leases that used to sit off the balance sheet (a shop lease, plant on a long hire, company vehicles on contract hire) will, in many cases, now appear as both an asset and a liability. That can change your reported assets, your liabilities and key ratios that lenders and covenants rely on.
These are accounting presentation changes, not new taxes. But because they affect the figures on the page, it is worth modelling the impact before your first 2026 period closes, especially if you have bank covenants tied to your balance sheet. We can walk you through what it means for your accounts as part of our statutory accounts service.
Illustrative example: how the lease change hits the balance sheet
Illustrative example. Imagine Meera runs a small design studio as a limited company, preparing accounts under FRS 102. She rents her studio on a five-year lease and pays £24,000 a year in rent.
Under the old rules, that lease was an operating lease. Nothing appeared on her balance sheet for it. Her profit and loss account simply showed a £24,000 rent expense each year.
For her first accounting period beginning on or after 1 January 2026, the revised Section 20 applies. She now recognises a right-of-use asset for the studio and a corresponding lease liability for the remaining rent she is committed to pay. Her balance sheet total goes up on both sides: an asset (her right to use the studio) and a liability (the rent she owes over the term).
Her profit and loss account changes shape too. Instead of a single £24,000 rent line, she shows depreciation on the right-of-use asset plus an interest charge on the lease liability. Over the whole lease the total cost is broadly the same, but the timing and the labels differ, and her balance sheet now looks materially larger.
These figures are illustrative. The exact numbers depend on the lease term, the discount rate used and any exemptions that apply, so the right-of-use asset and liability on day one will rarely equal a simple total of the rent.
Frequently asked questions
What does FRS 102 stand for?
FRS 102 is the Financial Reporting Standard numbered 102, formally titled "The Financial Reporting Standard applicable in the UK and Republic of Ireland". It is issued by the Financial Reporting Council and is the main standard within UK GAAP for company accounts.
Is FRS 102 the same as UK GAAP?
Not quite. UK GAAP is the broad term for UK Generally Accepted Accounting Practice, and FRS 102 is the central standard within it. The family also includes FRS 105 for micro-entities and FRS 101 for certain group subsidiaries, so FRS 102 is the main part of UK GAAP rather than the whole of it.
Do small companies have to use FRS 102?
Most small companies use FRS 102, often applying the reduced-disclosure regime in Section 1A. The smallest companies that meet the micro-entity size limits can instead choose the simpler FRS 105. Whether FRS 102 or FRS 105 suits you better depends on your size and on who needs to read your accounts.
When do the FRS 102 changes take effect?
The Periodic Review 2024 amendments were issued in March 2024, and most of them apply to accounting periods beginning on or after 1 January 2026, with early adoption permitted. The two changes most businesses will notice are the new revenue model and the move to recognise most leases on the balance sheet.
How is FRS 102 different from full IFRS?
FRS 102 is a single, self-contained standard designed for UK and Irish private companies, with lighter disclosure and simpler rules than the full suite of International Financial Reporting Standards used by large listed groups. The Periodic Review 2024 has brought parts of FRS 102 closer to IFRS, particularly on revenue and leases, but it remains a separate, lighter framework.
