Fixed Assets & Depreciation
Fixed assets are long-term items your business owns β buildings, vehicles, equipment. Learn how to configure fixed asset settings, depreciation books, asset classes, and the different depreciation methods Business Central supports.
What are fixed assets?
Fixed assets are the big, expensive things your company buys and keeps for years.
A laptop, a delivery van, office furniture, a factory machine β these arenβt expenses you consume in a month. You buy them once and use them for years. But they lose value over time (a 5-year-old van is worth less than a new one). That loss in value is called depreciation, and itβs recorded as an expense each period.
Nordic Manufacturing has 340 fixed assets β from CNC machines worth $200,000 to office desks worth $500. Sam tracks them all in Business Central.
Fixed asset setup
FA classes and subclasses
FA Classes group assets by type for reporting:
| Class | Example Assets |
|---|---|
| Tangible | Machinery, vehicles, furniture, buildings |
| Intangible | Software licences, patents, goodwill |
FA Subclasses provide finer grouping within classes:
| Class | Subclass | Example |
|---|---|---|
| Tangible | Machinery | CNC machine, press, lathe |
| Tangible | Vehicles | Delivery van, forklift |
| Tangible | Furniture | Desks, chairs, shelving |
| Tangible | Buildings | Office building, warehouse |
| Intangible | Software | ERP licence, CAD software |
Fixed asset posting groups
FA Posting Groups map fixed asset transactions to GL accounts β similar to how customer/vendor posting groups work:
| Account | Purpose | Example GL |
|---|---|---|
| Acquisition Cost Account | Where the purchase cost is recorded | 1600 (Fixed Assets) |
| Accum. Depreciation Account | Running total of depreciation | 1610 (Accumulated Depreciation) |
| Depreciation Expense Account | Periodic depreciation expense | 8100 (Depreciation Expense) |
| Gains Acc. on Disposal | Profit on selling an asset | 8210 (Gain on FA Disposal) |
| Losses Acc. on Disposal | Loss on selling an asset | 8220 (Loss on FA Disposal) |
| Maintenance Expense Account | Repair and maintenance costs | 8150 (FA Maintenance) |
Depreciation books
A depreciation book defines the rules for calculating depreciation. Most companies need at least one book; some need multiple:
| Book | Purpose | Method | Example |
|---|---|---|---|
| COMPANY | Financial reporting (company books) | Straight-Line | 5-year depreciation for machinery |
| TAX | Tax reporting (different rules) | Declining-Balance | Accelerated depreciation for tax benefits |
| INSURANCE | Insurance valuation | Replacement cost | Current replacement value tracking |
Depreciation book settings
| Field | Purpose |
|---|---|
| Code | Book identifier (COMPANY, TAX) |
| Description | Readable name |
| Default FA Posting Group | Default posting group for assets in this book |
| Allow Depr. below Zero | Can book value go negative? (usually No) |
| Use Same FA+G/L Posting Dates | FA posting date must match GL posting date |
| Fiscal Year 365 Days | Use exact day count instead of calendar months |
Main assets and components
A main asset groups related assets that are tracked separately but reported together:
Example: Nordic Manufacturing buys a delivery truck ($80,000):
- Main Asset: Delivery Truck #7
- Component 1: Truck chassis and body β $65,000
- Component 2: Refrigeration unit β $10,000
- Component 3: GPS and fleet tracking β $5,000
Each component can have a different depreciation method and useful life, but they roll up to the main asset for reporting.
Depreciation methods
This is a heavily tested topic. Know the key methods and when to use each:
| Method | How It Works | Annual Amount | Best For |
|---|---|---|---|
| Straight-Line | Equal amount each period | $10,000/yr for 5 years = $2,000/yr | Standard financial reporting, most assets |
| Declining-Balance 1 (DB1) | Fixed % of remaining book value | 25% of declining balance each year | Tax depreciation, fast early write-off |
| DB1/SL (Declining then Straight) | DB1 until SL gives higher amount, then switches to SL | Starts aggressive, smooths out | Balanced approach, common in practice |
| Manual | User enters each period's amount | Whatever you specify | Irregular patterns, seasonal assets |
| User-Defined | Custom table of percentages per period | Per your table | Country-specific rules, custom schedules |
Straight-Line depreciation
The simplest and most common method:
Annual Depreciation = (Acquisition Cost - Salvage Value) / Useful Life in Years
Example: Machine costs $50,000, salvage value $5,000, useful life 5 years
Annual Depreciation = ($50,000 - $5,000) / 5 = $9,000/year
Each year, $9,000 is recorded as depreciation expense. After 5 years, the book value equals the salvage value ($5,000).
Declining-Balance (DB1)
Depreciation is a fixed percentage of the remaining book value (not the original cost):
Year 1: $50,000 x 25% = $12,500 (book value drops to $37,500)
Year 2: $37,500 x 25% = $9,375 (book value drops to $28,125)
Year 3: $28,125 x 25% = $7,031 (book value drops to $21,094)
...
Higher depreciation in early years, declining over time. Useful for tax purposes where accelerated write-offs reduce taxable income.
DB1/SL (Combined method)
Starts with Declining-Balance, but switches to Straight-Line when SL gives a higher annual amount:
- Early years: DB1 percentage produces larger amounts β use DB1
- Later years: SL calculation produces larger amounts β switch to SL
- Result: faster depreciation than pure SL, but still reaches zero (unlike pure DB1 which asymptotically approaches zero)
Exam tip: Choosing the right method
The exam may ask βwhich depreciation method should Olivia use for X scenarioβ:
- Standard office equipment, simple reporting β Straight-Line
- Tax optimisation, early expense maximisation β Declining-Balance
- Balance between speed and full depreciation β DB1/SL
- Seasonal or irregular usage patterns β Manual or User-Defined
- Country requires specific schedule β User-Defined with custom table
Also know: changing a depreciation method mid-life is possible but creates journal adjustments. Itβs not a casual change.
Setting up depreciation on a fixed asset card
For each asset, configure depreciation in the Depreciation Book FastTab:
| Field | Purpose | Example |
|---|---|---|
| Depreciation Book Code | Which bookβs rules to follow | COMPANY |
| Depreciation Method | How to calculate | Straight-Line |
| Depreciation Starting Date | When depreciation begins | 01/07/2026 |
| No. of Depreciation Years | Useful life | 5 |
| Depreciation Ending Date | Auto-calculated or manual | 30/06/2031 |
| Salvage Value | Residual value at end of life | $5,000 |
Knowledge check
Nordic Manufacturing buys a CNC machine for $100,000 with a salvage value of $10,000 and a useful life of 10 years. Using straight-line depreciation, what is the annual depreciation amount?
Olivia needs to track the same fixed assets with different depreciation methods β straight-line for company financial statements and declining-balance for tax returns. How does she configure this?
π¬ Video coming soon
Congratulations! Youβve completed Domain 2: Configure Financials. You now understand the GL, currencies, chart of accounts, posting groups, journals, AP, AR, and fixed assets.
Next up: Domain 3 β Configure Sales and Purchasing, starting with Inventory Setup and Costing.