What is a cost variance?

Definition

A cost variance is the gap between what you actually spent and the standard or budgeted amount. On the books, it is a difference to explain, not a new unit cost by itself.

A brewery that planned $2.00 of cost in a pint and spent $2.30 has a $0.30 gap. That $0.30 is the variance; the $2.00 plan is still the target until someone changes it.

This figure can sit on the Income Statement as a separate line, or it can be folded into cost of goods sold. Either way, it is the leftover after you compare actual to plan.

Cash-basis books still have a gap if the paid bills do not match the budget. Accrual books compare accrued actuals to the same target.

Where it shows up

Balance Sheet: Related to inventory still held at standard while the gap is explained.

P&L: Related to the gap between actual and expected cost.

See also: Standard Cost · Variance Analysis · Purchase Price Variance

When you look at your Income Statement, this gap often appears near product cost. A large unfavorable number means actual spend ran over the plan for the units you made or sold.

When the gap is small, the brewery came close to the recipe and the labor plan. When it is large, malt prices, yield, or hours likely moved.

The Balance Sheet may still hold inventory at the expected unit cost. The gap is explained on the P&L so the shelf does not silently change price every time an invoice lands.

On the Statement of Cash Flows, paying malt and hops is still the cash event. The variance does not move cash by itself; it only labels why the spend did not match the plan.

How it works

The brewery starts with a planned cost per barrel or per pint. Malt, hops, kettle hours, and a share of cellar overhead each have an expected amount.

Actual invoices and actual hours are collected as the batch runs. The bookkeeper then subtracts the planned amount from the actual amount for the same output.

A positive leftover, in the usual shop talk, is unfavorable: you spent more than the plan. A negative leftover is favorable: you spent less.

The same total gap can be split into pieces. A purchase-price piece says the malt invoice differed; a usage piece says the batch took more pounds than the recipe.

Inventory valuation that uses a standard leaves those pieces on the P&L. The kegs on the rack can stay at the planned unit cost while you hunt the cause.

Stay with the comparison when you read this number. Changing the recipe after the fact is a new plan, not a way to erase last month's gap.

Direct materials are a common source. Labor hours and applied overhead are the other two places shops look first.

Keep the batch sheet, the malt invoice, and the planned recipe side by side. Anyone asking why pints ran $0.30 high should see whether price, yield, or hours did it.

Do not treat the variance as proof the plan was wrong. The plan might be fine and the invoice high, or the plan might be stale; the gap only says they differ.

After the period, the shop decides whether to reset the target. A gap that repeats for the same reason is a signal to update the plan, not to ignore it.

Example

A brewery budgets $2.00 of cost in each pint and brews 10,000 pints in March. Planned cost for that output is $20,000.

Actual malt, hops, labor, and cellar cost come to $23,000. The $3,000 leftover is a $0.30 unfavorable gap on each pint.

This metric does not need its own journal by itself. The purchases and the wages already hit the books; the variance is the comparison you write next to those actuals.

If $1,500 of the gap is malt that cost more per pound, and $1,500 is extra pounds used, the owner now has two conversations. One is with the supplier; the other is with the brew team.

Common mix-ups

This gap is not the standard itself. The standard is the planned unit cost; the variance is how far actual spend missed it.

This gap is not a budget-versus-actual report by itself. Budget versus actual can cover revenue and every expense; this term is the cost side of that idea, often at a unit level.

This gap is not proof of a bookkeeping error. A real price increase and a real spill both create a variance even when every invoice is coded correctly.

Related terms

• Standard Cost: A pre-set expected cost per unit used for planning and comparison.
• Purchase Price Variance: The difference between what you paid for materials and the standard price.
• Variance Analysis: Investigating and explaining differences between two sets of numbers.
• Job Costing: Tracking revenue and cost for each individual job, project, or order.
• Overhead Allocation: The method for spreading indirect costs across products, jobs, or departments.
• Budget Versus Actual: The comparison of planned amounts to what actually happened.
• Gross Margin: Gross profit expressed as a percentage of revenue.
• Manufacturing Overhead: Indirect production costs applied to units made.