UniAsset Now Supports 6 Depreciation Methods — Every Major Standard, In One Place

Most asset management software treats depreciation as a checkbox.

Pick a rate. Pick a method — usually one method, for everything. Done.

The reality of managing physical assets is messier than that. A laptop does not depreciate the same way a building does. Manufacturing equipment does not follow the same accounting rules as office furniture. And the method that makes sense for one type of asset — or one accounting standard — may be entirely wrong for another.

For years, teams using UniAsset handled the gap the same way most operations teams do: a parallel spreadsheet, a separate calculation in their accounting software, or an approximation that was close enough until the audit arrived.

That ends today.

UniAsset now supports six depreciation methods — every major standard used across modern asset accounting — configured per asset category, applied automatically to every asset in your portfolio, and surfaced in a real-time depreciation report that requires no manual calculation.

The six methods

Straight Line Method (SLM)

The foundational method of asset accounting. SLM depreciates an asset by an equal amount every year from purchase to end of useful life, down to a configurable residual value.

The logic is simple: some assets are equally useful throughout their operational life. A building performs the same function in year 5 as it does in year 1. Furniture does not suddenly become less effective in its third year of service. For assets like these — where value declines slowly and steadily — an equal annual charge is both accurate and easy to defend to an auditor.

UniAsset's SLM implementation has been upgraded to support full residual value configuration. The previous implementation depreciated assets to zero; the updated version respects the residual floor you set — whether that is 5%, 10%, or any value appropriate for your asset class and accounting policy.

Best suited for: Buildings, furniture, leasehold improvements, long-life infrastructure, and any asset with a predictable, uniform consumption pattern.

Written Down Value (WDV)

WDV applies a fixed percentage rate to the current book value each year — not to the original cost. Because the base shrinks each year, the depreciation charge declines over time even though the rate stays constant. The result is heavy depreciation in the early years and a gradual taper as the asset ages.

This approach reflects the economic reality of many asset types more accurately than SLM. A vehicle bought today is worth significantly less the moment it leaves the showroom. A three-year-old server is not worth half of a new one. WDV captures that front-loaded value loss in a way that straight-line depreciation simply cannot.

The WDV rate is derived from the asset's useful life and residual value using a standard formula. UniAsset ships presets for eight common asset classes, with the correct useful life and derived rate pre-calculated:

Select your asset class, and the correct values are applied automatically. No manual rate calculation required.

Best suited for: Technology equipment, vehicles, plant and machinery, and any asset that loses a disproportionate amount of its value in early years.

Declining Balance (DB)

Declining Balance is the flexible counterpart to WDV. The calculation is identical — a fixed rate applied to the declining book value each year — but the rate is set directly by you rather than being derived from a statutory formula.

Where WDV rates are prescribed and residual values mandated by accounting standards, DB lets your accounting policy determine the rate. You set a rate that reflects the actual consumption pattern of your assets — higher for fast-depreciating equipment, lower for slower assets — and the method applies it consistently.

This flexibility makes DB the right choice when your accounting standard permits accelerated depreciation but does not mandate a specific rate, and when the asset's consumption pattern calls for something faster than SLM.

Best suited for: Assets where the consumption pattern is demonstrably front-heavy but the applicable accounting standard permits rate flexibility — production machinery, specialized industrial equipment, commercial vehicles.

Double Declining Balance (DDB)

DDB is the most aggressive of the standard depreciation methods. It sets the rate at exactly twice the equivalent straight-line rate — 2 ÷ useful life — and applies it to the declining book value each year.

The practical effect is dramatic early depreciation. An asset with a 5-year useful life has a DDB rate of 40%. In year 1, that asset loses 40% of its original value. By year 3, more than two-thirds of the original cost has been recognized as depreciation. This front-loading reflects the reality of assets that experience their greatest productivity — and their greatest economic value — in the first half of their operational life.

DDB does not naturally terminate at zero or at a residual value. In practice, many organizations switch from DDB to SLM in the later years of an asset's life, once the SLM charge would produce a higher annual depreciation than DDB. This hybrid approach underpins MACRS, the US federal tax depreciation system.

Best suited for: Technology assets with rapid obsolescence, manufacturing equipment in high-throughput environments, and any asset where early-year productivity significantly exceeds later-year productivity.

MACRS — Modified Accelerated Cost Recovery System

MACRS is the US Internal Revenue Service's mandated depreciation system for federal tax purposes. It combines DDB logic with a structured set of fixed percentage tables organized by property class — 3-year, 5-year, 7-year, 10-year, 15-year, 20-year, and real property classes — with a half-year convention built in.

The defining feature of MACRS is that you do not calculate the depreciation rate yourself. The IRS has done it: each property class has a pre-defined annual percentage for every year of the asset's life, switching from DDB to SLM at the optimal crossover point. You select the property class, UniAsset looks up the correct percentage from the IRS table, and the calculation runs.

UniAsset ships property class presets so you can configure an asset category in seconds — no IRS publication lookup required.

Best suited for: Any organization that needs to track tax depreciation against IRS tables, or that wants to align asset book values with the US federal tax treatment of capital assets.

Sum of Years' Digits (SYD)

SYD is an accelerated method that produces a smooth, steadily declining depreciation curve — faster than SLM, but less steep than DDB. It is recognized under both IFRS and US GAAP and is particularly well-suited to assets where the decline in economic usefulness is gradual rather than sudden.

The calculation assigns a fraction of the total depreciable amount to each year of the asset's life, where the fraction decreases by one unit each year. For a 5-year asset, the sum of digits is 15 (5+4+3+2+1). Year 1 receives 5/15 of the depreciable amount, year 2 receives 4/15, year 3 receives 3/15, and so on. The result is an accelerated curve that is proportional, predictable, and straightforward for auditors and accountants to verify.

SYD sits in a useful middle ground: more aggressive than SLM for organizations that need to recognize more depreciation early, but more measured than DDB for those who do not need the most aggressive front-loading available.

Best suited for: Construction equipment, heavy vehicles, industrial machinery, and assets where consumption is front-heavy but a proportional, smooth curve better reflects the actual pattern than the steepness of DDB.

How it works in UniAsset

Configuration happens at the asset category level. Every asset within a category inherits the depreciation method and parameters of that category — configure once, and every current and future asset in that category is handled automatically.

When you create or edit an asset category with depreciation enabled, three things happen:

1. Select your method. The method selector presents all six options with a brief description of each. UniAsset will suggest a sensible default based on your account configuration, but the choice is always yours — any method can be applied to any category regardless of any other setting.

2. Configure the parameters. Each method surfaces only the fields it actually needs. WDV and SLM show asset class preset pickers — select a class and the correct useful life and rate are filled in automatically. MACRS shows a property class picker tied to the IRS tables. DB asks for a rate directly. DDB and SYD need only the useful life in years.

3. Set your residual value. WDV defaults to 5% based on standard accounting practice. All other methods default to 0% but accept any value between 0% and 99%. The residual value floor is respected in every calculation — no method will depreciate an asset below the configured residual.

From that point, every asset in the category has its current book value, accumulated depreciation, effective rate, and full year-by-year schedule calculated automatically — in real time, on demand, against live data.

The depreciation report

The updated depreciation report now surfaces the complete picture for every eligible asset in your portfolio:

• Current book value — what the asset is worth on your books today
• Accumulated depreciation — total value recognized since purchase
• Depreciation method — which of the six methods applies to this asset
• Effective annual rate — the rate being applied, whether configured directly or derived from useful life
• Residual value — the floor the asset will not depreciate below
• Fully depreciated — a clear indicator when an asset has reached its residual value
• Year-by-year schedule — the full depreciation table, expandable per asset, from purchase to end of useful life

The report filters by category, department, and location. It exports to CSV for use in your accounting system or audit preparation. And it calculates in real time against live asset data — not a snapshot that goes stale the moment a configuration changes.

Why six methods, and why now

Depreciation is not an accounting technicality. It is the mechanism by which your organization recognizes the real financial cost of the physical assets it depends on to operate.

When the method is wrong — or right but maintained in a disconnected spreadsheet — the consequences accumulate quietly. Book values drift from reality. Tax and book calculations diverge and require manual reconciliation. Auditors find discrepancies that require reconstruction and explanation. Replacement and capital decisions get made with an incomplete financial picture.

The reason most asset management tools offer only one or two methods is not that one or two are sufficient. It is that implementing six methods correctly — with the right formulas, the right presets, the right validation, and the right report to surface the output — is genuinely difficult to get right. We have spent the time to get it right.

Every organization that manages physical assets uses depreciation. The method, the asset class, and the accounting standard differ. The underlying need — to know what your assets are worth on paper, automatically, without a spreadsheet — does not.

Available now

All six depreciation methods are live today on all UniAsset plans. No upgrade is required. No data migration is needed.

To configure depreciation on an existing category: go to Settings → Asset Categories, select the category, enable depreciation, and choose your method. The full depreciation report is available under Reports → Depreciation.

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Questions about which method fits your asset classes, or how to approach the configuration? Reach out to the team. We are glad to help you get it right.