Key Takeaways
- Depreciation based on actual asset usage.
- Ideal for machinery with measurable output.
- Matches costs with production volume.
- Requires estimated total production capacity.
What is Unit of Production?
The unit of production method is a depreciation technique that allocates asset cost based on actual usage or output rather than time. This method aligns depreciation expense with the wear and tear experienced through production, making it relevant for assets whose value diminishes with usage.
This approach contrasts with time-based methods like the half-year convention for depreciation, emphasizing production volume as the key factor.
Key Characteristics
Understanding the core features helps you apply this method effectively.
- Usage-Based Depreciation: Depreciation expense ties directly to units produced, reflecting actual asset wear.
- Variable Expense: Depreciation fluctuates with production levels, differing from fixed schedules like equal annual charge methods.
- Accurate Cost Matching: Matches expenses with revenue generated by production output.
- Requires Estimates: Needs reliable estimates of total expected production over the asset's life.
- Common in Manufacturing: Ideal for equipment where factors of production are closely tracked.
How It Works
The method calculates depreciation by dividing the depreciable cost (cost minus salvage value) by the total estimated production capacity. This yields a depreciation expense per unit produced.
Each accounting period's depreciation expense is then computed by multiplying this per-unit amount by the actual units produced during that period, making the expense reflective of your asset’s real usage.
This approach contrasts with time-based depreciation and is useful for aligning asset cost with output, as seen in companies like American Tower, where asset utilization varies significantly.
Examples and Use Cases
Here are practical scenarios where the unit of production method is applied:
- Manufacturing Equipment: Machinery's depreciation expense depends on units produced, ensuring accurate cost allocation.
- Airlines: Delta adjusts depreciation on aircraft based on flight hours or miles flown, reflecting actual usage.
- Energy Sector: Companies like Seagate Technology use this method for equipment that wears down with production cycles.
Important Considerations
While the unit of production method offers precise matching of expenses to asset use, it depends on accurate estimates of total production capacity, which can be challenging to predict. Inconsistent production volumes may cause fluctuating depreciation expenses, complicating financial forecasting.
For assets with stable usage, other methods like the activity-based costing might be more suitable. Understanding your asset's usage pattern is key before adopting this depreciation approach.
Final Words
The units of production method aligns depreciation expense with actual asset use, offering more accurate cost matching for equipment-heavy operations. Review your asset usage data to determine if this approach better reflects your depreciation needs.
Frequently Asked Questions
The Unit of Production method is a depreciation approach that allocates depreciation based on the actual usage or output of an asset rather than the passage of time. It is commonly used for machinery and equipment where wear is directly related to production volume.
First, calculate depreciation per unit by dividing the asset's cost minus salvage value by the total expected production units. Then, multiply the depreciation per unit by the number of units produced during the period to find the depreciation expense.
Businesses choose this method when asset wear and tear depends more on usage than time, such as in manufacturing. It helps match depreciation expenses with actual production, providing a more accurate reflection of asset value related to revenue.
For example, if a machine costs $100,000 with a salvage value of $10,000 and an estimated production capacity of 500,000 units, depreciation per unit is $0.18. Producing 50,000 units in a year results in $9,000 depreciation for that year.
This method ties depreciation directly to the asset's use, making expense recognition more accurate according to production levels. It helps businesses better match expenses with revenues and manage assets where output determines wear.
The method requires reliable estimates of total production capacity over the asset's life, which can be difficult to predict. Also, depreciation expense can fluctuate significantly depending on production volumes, complicating financial planning.
No, it is best suited for assets where usage affects value, such as manufacturing equipment. It is less appropriate for assets that depreciate primarily due to time or obsolescence rather than use.

