Variable costs
Costs that vary with output. The term does not identify or classify a cost.
Cost-accounting terminology glossary
Variable costs are costs that vary with output.
This definition distinguishes variable costs from fixed costs and variable overhead. It does not identify, classify, allocate, assign, estimate, calculate, validate, record, budget, forecast, price, analyze, recommend, approve, decide, or manage any cost, accounting, financial, tax, legal, operational, or business matter.
Variable costs are costs that vary with output. OpenStax describes variable costing as assigning variable costs, including direct material, direct labor, and variable overhead, to a product. The term does not identify a cost, assign an accounting treatment, calculate a unit cost, establish a budget, or decide a financial outcome. Read the accounting reference.
Three related terms
Related terms do not classify or calculate a cost.
Variable-cost language may appear beside fixed costs and variable overhead. The terms can clarify a discussion without identifying a cost, allocating an amount, calculating a unit cost, setting a budget, or determining an accounting result.
Fixed costs
Costs that do not vary with output within a relevant range. The term does not calculate an amount or determine a cost classification.
Variable overhead
A related variable cost in manufacturing accounting. The term does not allocate overhead or determine inventory value.
Why context matters
A cost label does not establish a financial result.
The important distinction
A glossary defines the term. It does not classify or calculate costs.
The accounting definition provides vocabulary for discussing costs that vary with output. It is not a cost classification, allocation, budget, accounting record, valuation, price, tax treatment, financial result, or decision for a specific organization.
Costs, output, context
A term does not calculate a unit cost, budget, or price.
Cost discussions may involve output, products, labor, materials, overhead, budgets, records, inventory, prices, taxes, accounting policies, and requirements. This page does not identify, classify, allocate, assign, estimate, calculate, validate, record, budget, forecast, price, analyze, recommend, approve, or decide any of them.
A source note
Shared terminology can help name a cost-accounting question.
OpenStax describes variable costs as costs that vary with output in its discussion of variable costing. That supports a plain-language definition; it does not resolve a cost, accounting, tax, financial, pricing, or operational question.
Keep the definition and the cost decision separate.
An educational source can explain the term. It cannot identify or classify a cost, allocate or assign an amount, calculate a unit cost, set a budget, establish a price, validate a record, or determine an appropriate action.
Glossary boundary: This page does not identify, calculate, forecast, project, estimate, budget, model, analyze, monitor, compare, validate, record, reconcile, classify, allocate, assign, manage, optimize, recommend, approve, decide, transact, price, quote, or manage any cost, expense, budget, financial statement, account, transaction, financial, tax, legal, accounting, operational, or business matter. It does not provide financial, accounting, tax, legal, or operational advice.
What this glossary does not decide
This educational definition does not determine any cost, expense, output, budget, accounting, tax, financial, legal, regulatory, operational, or business status; identify, calculate, forecast, project, estimate, budget, model, analyze, monitor, compare, validate, record, reconcile, classify, allocate, assign, manage, optimize, recommend, approve, decide, transact, price, quote, or manage any matter; or provide financial, accounting, tax, legal, or operational advice.
Source note
References for this definition
This source supports the terminology on this page. It is not a substitute for an organization’s own records, accounting policies, qualified advisers, applicable requirements, or decisions.
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