What Is a Fixed Asset Register? Fields & Examples (2026)

A fixed asset register is the itemised record of every capitalised asset an organisation owns: what it is, where it is, who holds it, what it cost and what it is worth now. It supports the property, plant and equipment figure in the accounts under US GAAP, IFRS or FRS 102, and must reconcile to the general ledger.

Most organisations have something they call a fixed asset register. Rather fewer have one that would survive somebody checking it.

The gap usually isn't effort. It's that the register was built for one audience and is now being used by three, and nobody noticed the moment that happened. This guide covers what the register is for, what the main accounting frameworks expect of it, where the capitalisation line sits in the US and UK, why many organisations end up with a book register and a tax register, and how to keep the whole thing reconciled to the ledger.

If you want a starting file rather than an explanation, the fixed asset register template has the columns below already laid out. For the rule-by-rule view of who has to keep one, see fixed asset register requirements.

What a fixed asset register is for

A fixed asset register is the itemised record of the tangible assets an organisation owns and expects to use for more than one accounting period — what accountants call property, plant and equipment. It is the detail behind a single line on the balance sheet, and it serves three audiences. Confusion between them causes most of the trouble.

Audience	What they need from it	The question they ask
Finance	Cost, depreciation and book value	What are these worth, and what is the charge this year?
Assurance (auditors, funders)	Existence, completeness and condition	Can you prove these exist and are accounted for?
Operations	Location, holder, status	Where is it, who has it, and is it working?

A register built only for finance is accurate about value and useless for finding anything. A register built only for operations is current about location and unable to support a year-end. A good one serves all three, which mostly means capturing a few more fields at acquisition.

What the accounting frameworks expect

None of the major frameworks prescribes a register layout. What they prescribe is a set of accounting judgements, and each judgement needs a field somewhere. The three frameworks most US, UK and EU readers deal with are US GAAP (ASC 360), IFRS (IAS 16, used for EU-listed groups) and FRS 102 Section 17 (most UK and Irish private companies).

Question	US GAAP — ASC 360	IFRS — IAS 16	UK — FRS 102 s17
Measurement after purchase	Historical cost; revaluation not permitted	Cost model or revaluation model	Cost model or revaluation model
Separate components	Permitted, not required	Required where parts have different useful lives	Required where major components are consumed differently
Depreciation methods	Any systematic and rational method	Straight-line, diminishing balance, units of production	Straight-line, diminishing balance, usage-based

The US GAAP and IFRS columns come from Deloitte's IFRS and US GAAP comparison, which notes that under US GAAP revaluation is not permitted and component depreciation is acceptable but not required, while IFRS requires separately depreciating components with different useful lives. ASC 360 describes depreciation as allocating cost, less salvage, over useful life 'in a systematic and rational manner' (Deloitte DART, ASC 360). IAS 16 requires residual value and useful life to be reviewed at least at each financial year-end and names straight-line, diminishing balance and units of production as methods.

FRS 102 is worth reading directly because it is short. Paragraph 17.16 requires major components with significantly different patterns of consumption to be depreciated separately; paragraph 17.19 requires a review of residual value and useful life where indicators such as a change in use, unexpected wear or technological change are present; and paragraph 17.31 requires disclosure, by class, of methods, lives and a reconciliation of carrying amount showing additions and disposals (FRS 102, FRC, September 2024).

What this means for the register, in practice:

A parent–component link if you report under IFRS or FRS 102 and own anything with parts that wear out at different rates — a vehicle and its refurbished body, a lab instrument and its detector.
A 'last reviewed' date against useful life and residual value, so the annual (IAS 16) or indicator-driven (FRS 102) review leaves evidence.
Additions and disposals dated in the period they happened, because the year-end disclosure is built from them.
A revaluation history, only if you use the revaluation model — not available under US GAAP.

The fields a fixed asset register must carry

Field	Purpose	Notes
Unique asset identifier	The primary key	Flat and meaningless — encoding site or category breaks the first time either changes
Description, make, model	Identifies the thing	Specific enough to distinguish two similar units
Serial number	Manufacturer identity	The field an insurer and the police will ask for
Asset class / category	Grouping, GL account and depreciation policy	Drives the default useful life and the ledger account
Location	Where it is	Hierarchical — site, building, room
Custodian / holder	Who is responsible	A named person, not a department
Acquisition date, in-service date and cost	The basis of everything financial	Depreciation starts when the asset is available for use, not when the invoice arrives
Supplier and invoice reference	Provenance, audit trail, warranty route	Lets an auditor vouch the cost to a document
Book depreciation method, life, residual value	How value declines in the accounts	Agreed with finance, set by class
Tax basis and method (US) or capital allowance pool (UK)	Tax depreciation	Often differs from book — see below
Accumulated depreciation and net book value	What it is worth now	Derived, not typed
Condition and status	In use, in repair, retired, lost	Drives whether it can be issued
Disposal date, method and proceeds	Closes the record properly	Missing disposals inflate every subsequent count

If the asset was bought with US federal grant money, the list is effectively set for you: 2 CFR 200.313 requires records showing description, serial or other identification number, funding source, title holder, acquisition date, cost, federal share, location, use and condition, and disposition data.

The capitalisation threshold, and the trap it creates

Not everything belongs on a fixed asset register. Most organisations set a per-item value below which purchases are expensed rather than capitalised. That's a finance decision, written into the accounting policy, and in the US it interacts with tax rules.

The IRS de minimis safe harbor

Under the IRS tangible property regulations, a business can elect to deduct low-cost items immediately instead of capitalising them. The limit is $2,500 per invoice or item for businesses without an applicable financial statement, and $5,000 for those with one, such as audited statements or a filing with the SEC (IRS, tangible property final regulations). The $2,500 figure applies to tax years beginning on or after 1 January 2016, when Notice 2015-82 raised it from $500.

Two conditions matter for the register. The items must also be expensed in your books under an accounting policy in place at the start of the year (written down, if you have an applicable financial statement), and the election is made each year by attaching a statement to a timely filed return. In other words, the tax threshold follows your book policy; it does not replace it.

Other thresholds you may meet

US federal awards. 'Equipment' under 2 CFR 200.1 is tangible property with a useful life of more than one year and a per-unit cost at or above the lower of your own capitalisation level or $10,000.
UK and EU. There is no tax election equivalent to the US safe harbor; the threshold is an accounting-policy choice. For UK tax, accounting depreciation is not deductible at all — relief comes through capital allowances instead (see below).

The trap

Equipment below the threshold isn't on the fixed asset register, so in many organisations it isn't tracked at all. And below-threshold equipment is overwhelmingly the portable, numerous, easily mislaid kind: monitors, docks, chargers, hand tools, adaptors — and, at a $2,500 line, most laptops.

Tracking and capitalising are different decisions. Track operationally down to whatever value you would notice missing; capitalise according to your accounting policy. Conflating them puts the gap in your records precisely where the losses are.

Book register vs tax register

In the US the depreciation in your financial statements and the depreciation on your tax return are usually different numbers, for the same asset, by design. Book depreciation follows ASC 360 (or IFRS) and your own estimate of useful life. Tax depreciation follows the Internal Revenue Code: for property placed in service after 1986 you generally must use MACRS (IRS Topic 704), under which IRS Publication 946 treats computers and office machinery as 5-year property and office furniture as 7-year property.

On top of MACRS sit two ways to deduct cost up front. For tax years beginning in 2026, the Section 179 expensing limit is $2,560,000, reduced dollar for dollar once qualifying purchases exceed $4,090,000 (IRS Rev. Proc. 2025-32). And the One Big Beautiful Bill Act reinstated a 100% special (bonus) depreciation allowance for qualified property acquired and placed in service after 19 January 2025 (IRS Publication 946).

In the UK the split is sharper. HMRC's manual is blunt: 'Depreciation of fixed assets charged in the accounts is not allowed as a deduction in computing taxable profits', and capital allowances are given instead (HMRC CA20006). The Annual Investment Allowance gives 100% relief on most plant and machinery up to £1 million a year, and companies can claim full expensing on new and unused main-rate plant and machinery.

Worked example (hypothetical)

A US company with no audited statements buys 25 laptops at $1,600 each — $40,000 in total — in March.

Book policy	Book register	Tax treatment	Register consequence
Capitalise above $1,000; 3-year straight-line	25 assets, $13,333 depreciation a year for three years	MACRS 5-year property, or Section 179 / 100% bonus in year one	Book and tax values differ; you need both columns
Expense below $2,500 (de minimis policy)	Nothing capitalised	Deducted in year one under the safe harbor, if elected	No fixed asset records — the laptops still need tracking

Either answer can be right. The point is that the register has to know which one you chose, and the second row is the one where equipment quietly drops out of view.

Fixed asset software usually handles this as multiple 'books' on one asset record. A spreadsheet handles it as two sheets that drift apart. If you keep two, reconcile the asset lists between them at least annually, because an asset disposed of in one and not the other produces a tax or audit difference nobody can explain later.

Reconciling the register to the general ledger

The register is a subledger. Its totals must agree to the general ledger control accounts — cost and accumulated depreciation, by asset class — at every period end you report. If they don't, one of them is wrong and the auditor will want to know which.

Agree the mapping. Each asset class in the register maps to one cost account and one accumulated depreciation account in the ledger.
Run the roll-forward by class: opening cost + additions − disposals = closing cost; opening accumulated depreciation + charge − depreciation on disposals = closing. This is the same reconciliation FRS 102 paragraph 17.31 asks you to disclose.
Compare to the ledger. Differences usually trace to capital purchases posted to expense (or the reverse), disposals recorded in one place only, or depreciation run in the register but not posted.
Investigate, don't plug. Treat a difference as a question. Silently adjusting one side destroys the evidence of the process gap that caused it.
Keep the workpaper. A signed, dated reconciliation each period is the evidence an auditor asks for first.

Quarterly is a sensible cadence for most organisations; annual reconciliation tends to surface differences nobody can still explain.

Fixed asset register vs operational asset register

These are often the same system and sometimes shouldn't be.

A fixed asset register answers ownership and value. It changes slowly, is reconciled periodically, and its audience is finance and audit.
An operational asset register answers location, custody and condition. It changes constantly and its audience is whoever is trying to find or issue something.

Running them as two unconnected systems produces exactly the drift you would expect: finance holds assets that were disposed of two years ago, operations holds equipment finance has never heard of. One register carrying both sets of fields is usually better, provided the operational fields can be updated where the work happens and the financial fields are controlled by finance.

Getting the identifier right, because you only get one go

The most common design mistake is encoding meaning into the asset number: a site prefix, a category segment, a year block. It reads well on day one and breaks the first time an item moves site or a category is renamed — at which point the code says one thing and the record says another, and the code is the thing printed on the asset.

Approach	Example	What happens later
Meaningful code	NYC-IT-2024-0042	Wrong the moment it moves to Chicago
Flat sequence	AST-00042	Stays true forever; attributes live in fields
Manufacturer serial as key	C02X1234JGH5	Breaks on replaced boards and unserialised items

Use a flat sequence and let categories, locations and departments be fields that can change. If you're inheriting meaningful codes from an old system, import them as a secondary reference so search still works, and stop issuing new ones.

Building one from nothing

If there is no register at all, start with the sources rather than a blank template — you already hold most of the data, just not in one place.

Purchase records. The ledger or accounts payable history gives you what was bought, when, and for how much. This is your spine.
Any existing lists. IT's device list, the facilities spreadsheet, the insurance schedule. Each is partial and each contains something the others don't.
A physical count. The only way to find what no record contains. The method is in physical verification of fixed assets.
Reconcile the three. Items in purchase records but not physically present are either disposed-and-not-closed or missing — and you need to know which.

Expect the first version to be incomplete. A register that is mostly right today and improving is worth more than a perfect one six months from now, because the perfect one doesn't exist yet.

Every build also finds equipment with no serial, no purchase record and no obvious owner. Register it with what you have — description, location, estimated value and a note that provenance is unknown — and ask around with a photo. If it is genuinely unidentifiable and unused, dispose of it properly. What not to do is leave it off because the record would be incomplete.

How long to keep the records

US. The IRS says to keep records relating to property until the period of limitations expires for the year in which you dispose of it (IRS, how long should I keep records) — so for a long-lived asset, that is its whole life plus several years.
UK. The Companies Act 2006 requires adequate accounting records including a record of assets and liabilities (section 386), preserved for three years (private companies) or six years (public companies) under section 388. GOV.UK's guidance for limited companies says to keep records for six years from the end of the financial year they relate to, which covers HMRC as well. Use the longer period.

If you report in India

Under CARO 2020, clause 3(i), the auditor reports whether the company maintains proper records showing full particulars, quantitative details and situation of property, plant and equipment, and whether they have been physically verified at reasonable intervals (ICAI study material on CARO 2020). The fields above satisfy the record-keeping part; the verification part is covered in our physical verification guide.

Keeping it accurate

Capture at acquisition. Every field above is cheap to record once and expensive to reconstruct later.
Make operational updates easy, or location and holder will drift regardless of policy. Scanning a label on a phone is faster than editing a shared spreadsheet, and it's why tools such as Stackroom put the register, custody and counts in one record.
Cycle count by location or class through the year rather than relying on one annual count.
Close disposals in both the register and the ledger. Unclosed disposals are a common source of phantom assets.
Reconcile to the general ledger on a defined cadence, and review useful lives when your framework requires it.

Depreciation figures can be sanity-checked with the depreciation calculator, and the choice of method is covered in straight-line vs declining balance depreciation.

Sources

Key takeaways

A fixed asset register is the subledger behind property, plant and equipment, and it serves finance, assurance and operations at once.
US GAAP forbids revaluation and only permits component depreciation; IFRS and FRS 102 allow revaluation and require components where lives differ.
The IRS de minimis safe harbor is $2,500 per item, or $5,000 with an applicable financial statement — and it follows your book policy.
Book and tax depreciation usually differ (MACRS, Section 179 and bonus in the US; capital allowances in the UK), so the register needs both.
Reconcile the register to general ledger cost and accumulated depreciation by class, and investigate differences rather than plugging them.
Items below the capitalisation threshold still need operational tracking — that is where losses concentrate.

Frequently asked questions

What is a fixed asset register?

It is the itemised record of the tangible assets an organisation owns and uses for more than one accounting period. For each asset it holds identity, location, custodian, acquisition date and cost, depreciation method and life, accumulated depreciation, net book value and eventual disposal. Its totals support the property, plant and equipment figure in the balance sheet and must agree to the general ledger.

What fields are required in a fixed asset register?

At minimum: a unique identifier, description, make, model, serial number, asset class, location, custodian, acquisition and in-service dates, cost, supplier and invoice reference, depreciation method, useful life and residual value, accumulated depreciation, net book value, condition and status, and disposal details. US businesses usually add tax basis and method; IFRS and FRS 102 reporters may need component links.

Is a fixed asset register a legal requirement?

Usually in substance, if not by name. UK companies must keep accounting records that include a record of assets under section 386 of the Companies Act 2006. US federal grant recipients must keep detailed equipment records under 2 CFR 200.313. Any business claiming depreciation must be able to support it to the IRS or HMRC, and auditors expect a register behind the balance sheet figure.

What is the IRS capitalization threshold for fixed assets?

The IRS de minimis safe harbor lets a business deduct items costing up to $2,500 per invoice or item, or up to $5,000 if it has an applicable financial statement such as audited accounts. The items must also be expensed in the books under a policy in place at the start of the year, and the election is made annually with the tax return.

What is the difference between book and tax depreciation?

Book depreciation follows your accounting framework, such as ASC 360 or IAS 16, and your own estimate of useful life. Tax depreciation follows tax law: MACRS, Section 179 and bonus depreciation in the US, or capital allowances in the UK, where accounting depreciation is not deductible. The same asset therefore often has two different values, and the register should hold both.

How do you reconcile a fixed asset register to the general ledger?

Map each asset class to its ledger cost and accumulated depreciation accounts. Roll each class forward from opening balance through additions, disposals and the depreciation charge to closing balance, then compare to the ledger. Investigate differences, which usually come from capital items posted to expense, disposals recorded in only one place, or depreciation run but not posted.

Should low-value items be on the fixed asset register?

Not for capitalisation if they fall below your threshold — but they should still be tracked operationally. Laptops, monitors, docks and tools often sit below a $2,500 line, and portable low-value equipment is exactly what goes missing. Excluding it from all tracking puts the hole in your records precisely where the losses are.

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