Understanding Overhead
* Manufacturing Overhead: These are indirect costs associated with producing goods. Examples include:
* Rent on factory
* Utilities
* Depreciation of factory equipment
* Indirect labor (like supervisors)
* Applied Overhead: The estimated overhead cost that's allocated to products based on an activity driver (like machine hours or direct labor hours).
Calculating Overhead Variance
1. Calculate Total Actual Overhead: Add up all your actual overhead costs for the period.
2. Calculate Total Applied Overhead: Multiply the predetermined overhead rate by the actual activity level.
* Predetermined Overhead Rate: (Estimated Overhead Costs / Estimated Activity Level)
* Actual Activity Level: The actual amount of the activity driver used.
3. Find the Difference: Subtract the applied overhead from the actual overhead.
Under- and Over-Applied Overhead
* Under-applied Overhead: Occurs when actual overhead exceeds applied overhead. This means you didn't allocate enough overhead to your products.
* Over-applied Overhead: Occurs when applied overhead exceeds actual overhead. This means you allocated too much overhead to your products.
Example
Let's say a company has the following information:
* Estimated Overhead: $100,000
* Estimated Machine Hours: 10,000
* Actual Overhead: $105,000
* Actual Machine Hours: 9,000
Calculations:
1. Predetermined Overhead Rate: $100,000 / 10,000 hours = $10 per machine hour
2. Applied Overhead: $10 per hour * 9,000 hours = $90,000
3. Difference: $105,000 (actual) - $90,000 (applied) = $15,000
Result: The company has under-applied overhead of $15,000.
Disposition of Under- and Over-Applied Overhead
You need to adjust for under- or over-applied overhead at the end of the accounting period. Common methods include:
* Allocate to Cost of Goods Sold (COGS): This is the simplest approach. The adjustment is directly added to (under-applied) or subtracted from (over-applied) COGS.
* Allocate to COGS, Work-in-Process (WIP), and Finished Goods: This method allocates the adjustment proportionally based on the balances in these accounts.
* Create a separate account: You can use a variance account to track the under- or over-applied overhead.
Why It Matters
Understanding under- and over-applied overhead is crucial for:
* Accurate Costing: Ensures your product costs are more representative of actual production expenses.
* Profitability Analysis: Helps you assess the true profitability of your products and operations.
* Decision Making: Provides a more realistic view of your financial situation for making informed decisions.
Let me know if you'd like to explore any of these concepts further or have a specific scenario you'd like to analyze!
