What is standard cost?
A pre-set expected cost per unit used for planning and comparison. You pick the target before the batch runs, then measure actual spend against it.
Definition
Standard cost is a pre-set expected cost for one unit, set before the work runs. On the books, it is the yardstick you compare actual spend against, and it is often the amount used to carry inventory.
A soap maker who decides a bar should cost $3.20 has a standard. Later invoices and hours are measured against that $3.20, not treated as a surprise each time.
This figure is a planned unit cost. It is not the supplier's latest invoice, and it is not a guess written on a sticky note after the batch.
Where it shows up
Balance Sheet: Related to inventory carried at the expected unit cost.
P&L: Related to the expected unit cost used in planning.
See also: Cost Variance · Inventory Valuation · Purchase Price Variance
When you look at your Balance Sheet, shops that use this method often hold stock at the expected unit amount. Raw materials inventory, work in process inventory, and finished goods inventory can all sit at those targets.
When inventory looks steady month to month, the shelf may be moving at a fixed unit cost even while real invoices bounce. When it jumps, the shop may have changed the target, or the count of bars may have changed.
The Income Statement uses the expected unit cost to plan cost of goods sold. Gaps versus actual spend are explained as variances, not hidden inside a blended unit.
On the Statement of Cash Flows, paying oil suppliers is still the cash event. The standard does not move cash; it only decides how those dollars are labeled on the shelf and on the P&L.
How it works
The maker builds the target from a recipe and a labor plan. Oils, fragrance, a few minutes of kettle time, and a share of studio overhead each get a planned amount.
The bill of materials lists the ounces a bar should take. Direct materials in that list are priced at the expected purchase price, not last week's spike.
How the target is used:
- Build the expected unit cost from the recipe, labor plan, and overhead share
- Carry inventory at that expected amount when the shop uses this method
- Compare actual invoices and hours to the target
- Explain gaps as variances instead of silently rewriting the unit
When a shipment arrives, the books may put the goods on the shelf at the expected price. Any invoice difference is set aside as a variance to explain later.
As bars are poured, work in process is charged at the expected material, labor, and overhead rates. Finished bars then wait at the same expected unit cost.
When a bar sells, cost of goods sold is often the standard amount. The real oils and the real wages have already been compared to that target.
Stay with the planned unit when you read this number. A new fragrance that was never in the recipe is a change to the target, not a reason to ignore it.
Inventory valuation can use this method instead of walking every invoice layer. The tradeoff is that the shelf no longer shows the latest actual price until you look at the variances.
Keep the recipe, the labor note, and the date the target was set. Anyone asking why a bar is $3.20 should see the ounces and the minutes behind it.
Do not treat the latest vendor invoice as the standard. The invoice is actual; this number is the plan you chose.
After a period, the shop reviews the gaps and decides whether to reset the target. A target that is years old stops being useful.
Example
A soap maker sets $3.20 as the expected cost of one bar. The plan is $1.80 of oils, $0.70 of kettle labor, and $0.70 of studio overhead.
A Monday batch of 100 bars should therefore hold $320 of cost. If the oils on that batch actually cost $210 instead of $180, the extra $30 is a gap to explain, not a silent change to the $3.20 target.
This method does not need its own journal by itself. The purchase, the labor, and the overhead each have their own entries; the standard is the rate those entries are measured against.
If the maker later resets the bar to $3.40 because oils stayed high, that is a new target. Old bars already on the shelf may be left at $3.20 until they sell, depending on how the shop writes the change.
Common mix-ups
This number is not actual cost. Actual cost is what you really spent; the standard is what you said a unit should cost.
This number is not a selling price. A $3.20 bar cost does not tell you what a customer should pay; it only sets the cost target.
This number is not a variance. The variance is the gap after you compare actual spend to the target; the target itself is this figure.
Related terms
- Cost Variance: The gap between actual cost and the standard or budgeted cost.
- Purchase Price Variance: The difference between what you paid for materials and the standard price.
- Manufacturing Overhead: Indirect production costs applied to units made.
- Inventory Valuation: The method used to assign cost to units held and units sold.
- Direct Materials: Materials that can be traced directly to a finished product.
- Job Costing: Tracking revenue and cost for each individual job, project, or order.
- Bill Of Materials: The list of components and quantities needed to build one unit.
- Gross Margin: Gross profit expressed as a percentage of revenue.