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Fixed cost
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In accounting and economics, fixed costs, also known as indirect costs or overhead costs, are business expenses that are not dependent on the level of goods or services produced by the business. They tend to be recurring, such as interest or rents being paid per month. These costs also tend to be capital costs. This is in contrast to variable costs, which are volume-related (and are paid per quantity produced) and unknown at the beginning of the accounting year. Fixed costs have an effect on the nature of certain variable costs.
For example, a retailer must pay rent and utility bills irrespective of sales. As another example, for a bakery the monthly rent and phone line are fixed costs, irrespective of how much bread is produced and sold; on the other hand, the wages are variable costs, as more workers would need to be hired for the production to increase. For any factory, the fixed cost should be all the money paid on capitals and land. Such fixed costs as buying machines and land cannot be not changed no matter how much they produce or even not produce. Some writers also refer to "mixed costs" or semi-variable costs, which are partially fixed and partially variable:[1] thus telephone costs could be treated as "mixed" because the total cost would include the variable cost of actual calls. Raw materials are one of the variable costs, depending on the quantity produced.
Fixed costs are considered an entry barrier for new entrepreneurs. In marketing, it is necessary to know how costs divide between variable and fixed costs. This distinction is crucial in forecasting the earnings generated by various changes in unit sales and thus the financial impact of proposed marketing campaigns. In a survey of nearly 200 senior marketing managers, 60 percent responded that they found the "variable and fixed costs" metric very useful. These costs affect each other and are both extremely important to entrepreneurs.[2]
In economics, there is a fixed cost for a factory in the short run, and the fixed cost is immutable. But in the long run, there are only variable costs, because they control all factors of production.
Description
[edit]Fixed costs are not permanently fixed; they will change over time, but are fixed, by contractual obligation, in relation to the quantity of production for the relevant period. In other words, there is a recurring cost, but the value of this cost is not permanently fixed. For example, a company may have unexpected and unpredictable expenses unrelated to production, such as warehouse costs and the like that are fixed only over the time period of the lease. By definition, there are no fixed costs in the long run, because the long run is a sufficient period of time for all short-run fixed inputs to become variable.[3][4] Investments in facilities, equipment, and the basic organization that cannot be significantly reduced in a short period of time are referred to as committed fixed costs. Discretionary fixed costs usually arise from annual decisions by management to spend on certain fixed cost items. Examples of discretionary costs are advertising, insurance premia, machine maintenance, and research & development expenditures. Discretionary fixed costs can be expensive.[5]
In economics, the most commonly spoken about fixed costs are those that have to do with capital. Capital can be the fixed price for buying a warehouse for production, machines (which can be paid once at the beginning and not depend on quantity or time of production), and it can be a certain total for the salaries of a certain quantity of unskilled labor. Many things are included in fixed costs depending on the product and market - some firms may decide to hold some resources at fixed rates that other companies may not - but these unexpected or predictable short term fixed costs can be the reason a firm doesn't enter the market (if the costs are too high). These costs and variable costs have to be taken into account when a firm wants to determine if they can enter a market.
In business planning and management accounting, usage of the terms fixed costs, variable costs and others will often differ from usage in economics, and may depend on the context. Some cost accounting practices such as activity-based costing will allocate fixed costs to business activities for profitability measures. This can simplify decision-making, but can be confusing and controversial.[6][7] In accounting terminology, fixed costs will broadly include almost all costs (expenses) which are not included in cost of goods sold, and variable costs are those captured in costs of goods sold under the variable costing method. Under full (absorption) costing fixed costs will be included in both the cost of goods sold and in the operating expenses. The implicit assumption required to make the equivalence between the accounting and economics terminology is that the accounting period is equal to the period in which fixed costs do not vary in relation to production. In practice, this equivalence does not always hold, and depending on the period under consideration by management, some overhead expenses (e.g., sales, general and administrative expenses) can be adjusted by management, and the specific allocation of each expense to each category will be decided under cost accounting. In recent years, fixed costs gradually exceed variable costs for many companies. There are two reasons. Firstly, automatic production increases the cost of investment equipment, including the depreciation and maintenance of old equipment. Secondly, labor costs are often considered as long-term costs. It is difficult to adjust human resources according to the actual work needs in short term. As a result, direct labor costs are now regarded as fixed costs.
See also
[edit]References
[edit]- ^ Accounting Insights, What Are Mixed Costs? Definition and Examples, published on 14 August 2025, accessed on 14 September 2025
- ^ Farris, Paul W.; Neil T. Bendle; Phillip E. Pfeifer; David J. Reibstein (2010). Marketing Metrics: The Definitive Guide to Measuring Marketing Performance, Upper Saddle River, New Jersey: Pearson Education, Inc. ISBN 0-13-705829-2. The content used from this source has been licensed under CC-By-SA and GFDL and may be used verbatim. The Marketing Accountability Standards Board (MASB) endorses the definitions, purposes, and constructs of classes of measures that appear in Marketing Metrics as part of its ongoing Common Language in Marketing Project Archived 2019-04-05 at the Wayback Machine
- ^ McEachern, William (2012). Economics: A Contemporary Introduction. Mason, Ohio: South-Western Cengage Learning. p. 158. ISBN 978-0-538-45374-5.
- ^ Schwartz, Robert (2010). Micro Markets: A Market Structure Approach to Microeconomic Analysis. Hoboken, New Jersey: John Wiley & Sons, 2010. p. 202. ISBN 978-0-470-44765-9.
- ^ Bragg, Steven (3 November 2011). "What is a discretionary cost?". Accounting Tools. Retrieved 10 March 2012.
- ^ Dr Alex, Suleman. "A controversial-issues approach to enhance management accounting education". Journal of Accounting Education. 1994: 59–75.
- ^ Ali, H.F. "A multicontribution activity-based income statement". Journal of Cost Management. 1994 (Fall): 45–54.
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Fixed cost
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Fundamentals
Definition
In economics and accounting, fixed costs refer to those expenses that remain constant in total amount regardless of changes in production volume or output level within the short run, a period during which at least one factor of production is fixed and cannot be adjusted.[9] These costs are incurred irrespective of whether a firm produces zero units or operates at full capacity, contrasting with costs that fluctuate directly with activity levels.[10] Common examples of fixed costs include rent for factory space, which must be paid even if production halts; property taxes on business assets that do not depend on output generated; and insurance premiums covering facilities or equipment, remaining unchanged with variations in units produced.[11] These expenditures represent commitments that support the firm's operational capacity but do not scale proportionally with short-term production decisions.[12] The concept of fixed costs originated in the late 19th century through the work of economist Alfred Marshall, who integrated it into short-run cost theory as part of neoclassical economics in his seminal text Principles of Economics (1890), distinguishing between fixed "supplementary costs" and variable "prime costs" to analyze firm behavior under constrained adjustment periods.[13] Marshall's framework emphasized how, in the short run, producers treat certain inputs like plant and machinery as fixed, influencing supply responses to demand.[14] Importantly, fixed costs are fixed only in the short run; in the long run, all costs become variable as firms can fully adjust all inputs, including those previously fixed, such as by expanding or contracting facilities.[15] This temporal distinction underscores the analytical boundary in cost theory, where short-run fixity gives way to long-run flexibility.[16]Characteristics
Fixed costs remain constant regardless of changes in production or output levels within a specified relevant range, such as a factory's monthly rent or salaried employees' wages.[12] This invariance means that as output decreases, the fixed cost per unit rises significantly, potentially straining profitability at low production volumes, while higher volumes dilute this burden.[11] In the short run, fixed costs apply because certain inputs, like plant capacity or equipment, cannot be easily adjusted, making these costs unavoidable during that period.[17] However, in the long run, all costs become variable as firms can alter or eliminate previously fixed commitments, such as by relocating or selling assets.[17] Many fixed costs qualify as sunk costs, which are irrecoverable expenditures already incurred, such as initial investments in specialized machinery that cannot be resold or repurposed.[18] This sunk nature requires rational decision-making to ignore them in future choices, focusing instead on incremental costs to avoid the sunk cost fallacy.[18] Fixed costs influence profitability through average fixed cost (AFC), calculated as total fixed cost divided by output quantity, which declines as production increases because the fixed amount spreads over more units.[19] This spreading effect enables economies of scale, lowering per-unit costs and enhancing margins at higher volumes.[12]Classification
Committed Fixed Costs
Committed fixed costs represent a subset of fixed costs that arise from long-term contracts, investments, or obligations incurred through prior managerial decisions, making them unavoidable in the short term without incurring significant penalties or disruptions. These costs are incurred to maintain a firm's operational capacity and are typically locked in for extended periods, such as multiple years, due to legal bindings or strategic commitments. For instance, they include depreciation on purchased machinery, which reflects the allocation of the asset's cost over its useful life following an initial capital investment.[20][21] Common examples of committed fixed costs encompass salaries for permanent staff under multi-year employment contracts, interest payments on long-term debt, and annual maintenance charges for essential equipment. Property taxes on owned facilities and lease payments for buildings or vehicles also qualify, as these obligations persist regardless of production levels and stem from decisions to secure productive assets. In a manufacturing context, a five-year lease for factory space at $100,000 annually would exemplify such a cost, ensuring space availability but committing the firm to payments irrespective of output.[22][20][21] The implications of committed fixed costs lie in their rigidity, which limits managerial flexibility during economic downturns or shifts in demand; altering them often requires substantial penalties, such as early termination fees or asset disposals at a loss. These costs represent commitments to production capacity, meaning they must be covered to sustain operations, potentially straining profitability when revenues decline. From an economic perspective, committed fixed costs originate from strategic choices aimed at securing resources for future production, such as investing in infrastructure to support long-term growth and competitive positioning. Accurate budgeting for these costs is essential to ensure ongoing compliance and operational continuity.[20][21][22]Discretionary Fixed Costs
Discretionary fixed costs, also known as managed or programmed fixed costs, are expenses that management incurs through periodic decisions for specific time periods, remaining fixed within those periods but adjustable or eliminable in the short term without disrupting core business operations.[23][22] These costs arise from annual or quarterly budgeting choices rather than long-term commitments, allowing organizations to allocate resources flexibly based on current priorities.[20] Unlike committed fixed costs, which are locked in by contracts or legal obligations, discretionary fixed costs offer greater control to executives.[20] Common examples include advertising budgets, research and development expenditures, and employee training programs.[24][25] For instance, a company might allocate a fixed annual amount for marketing campaigns, which does not fluctuate with production volume but can be scaled back if sales projections decline.[23] Similarly, investments in staff development or innovation projects are set as fixed outlays for the fiscal year but can be deferred without immediate operational harm.[22] Adjustment mechanisms for these costs typically involve regular reviews during budgeting cycles, such as annually or quarterly, enabling management to reduce spending during economic downturns or reallocate funds to high-priority areas.[23][20] This process often includes evaluating performance metrics and market conditions to decide on cuts or increases, ensuring costs align with strategic goals without affecting day-to-day activities.[22] In a strategic context, discretionary fixed costs enhance organizational responsiveness to market fluctuations by permitting timely adjustments that support competitive positioning, such as boosting R&D during growth phases or trimming non-essential programs amid uncertainty.[23][25] This flexibility aids in maintaining financial health while preserving the fixed nature of expenses over shorter horizons, ultimately contributing to effective resource management in dynamic environments.[22]Comparison with Variable Costs
Key Differences
Fixed costs remain constant in total regardless of changes in production or output levels, whereas their per-unit cost decreases as output increases due to the fixed total being spread over more units. In contrast, variable costs fluctuate in total in direct proportion to output volume, with the per-unit cost remaining constant. This behavioral difference is fundamental to cost classification in managerial accounting.[1][26] From a time perspective, fixed costs are invariant in the short run, where certain inputs like capital are committed and cannot be easily adjusted, but in the long run, all costs become variable as firms can alter capacity. Variable costs, however, are always tied to activity levels and vary accordingly across both short and long horizons. This distinction highlights how fixed costs represent commitments over specific periods, while variable costs respond immediately to operational changes.[1][26][11] To illustrate these differences, consider common examples: rent for a manufacturing facility qualifies as a fixed cost, remaining unchanged whether production is 1,000 or 10,000 units, while raw materials like steel are variable, increasing linearly with the number of units produced. Similarly, salaried employee compensation is typically fixed, paid consistently regardless of output, whereas sales commissions are variable, scaling directly with sales volume. These pairings underscore the predictable nature of fixed costs versus the responsive nature of variable costs.[11][1] Conceptually, fixed costs facilitate long-term planning by establishing the baseline capacity and infrastructure needs of a business, allowing managers to assess scalability without immediate output fluctuations. Variable costs, on the other hand, serve as indicators of operational efficiency, enabling evaluations of resource utilization and short-term adjustments to maintain profitability. This framework aids in strategic decision-making by separating capacity-related commitments from activity-driven expenditures.[26][1]Cost Behavior in Production
In production, fixed costs remain constant regardless of the output level, contributing to the total cost structure through the fundamental equation that separates costs into fixed and variable components. The total cost (TC) is expressed as TC = FC + VC, where FC represents the fixed cost, which does not vary with production volume, and VC denotes the variable cost, which is proportional to the quantity of output (Q), often modeled as VC = v × Q with v as the variable cost per unit.[3] This equation illustrates how fixed costs provide a stable baseline in the cost function, while variable costs scale linearly with production activity. A key aspect of fixed cost behavior is the average fixed cost (AFC), calculated as AFC = FC / Q, which demonstrates a hyperbolic decline as output increases. Since FC is invariant, dividing it by progressively larger quantities of Q results in a continuously decreasing AFC curve, approaching zero asymptotically but never reaching it. This spreading of fixed costs over more units enhances per-unit efficiency at higher production volumes, though it underscores the importance of scale in cost management.[27][28] Graphically, fixed costs appear as a horizontal line on a total cost graph, starting from the y-axis at the FC value and remaining parallel to the x-axis (output axis), indicating no change with Q. In contrast, the total cost line slopes upward due to the addition of variable costs. For semi-variable or step-fixed costs, which behave as fixed within specific production ranges but jump discretely at capacity thresholds (e.g., adding machinery), the graph shows horizontal segments connected by vertical steps, reflecting periodic increases in FC.[29][3][1] The presence of fixed costs in production introduces operating leverage, where a higher proportion of fixed to variable costs amplifies the impact of sales volume changes on profits. At high production levels, this leverage boosts profitability by distributing FC across more units, but at low volumes, it heightens risk as fixed obligations persist without sufficient revenue to cover them, potentially leading to losses.[30][31]Applications in Analysis
Break-Even Analysis
Break-even analysis is a fundamental tool in managerial accounting that utilizes fixed costs to identify the production or sales volume at which total revenues precisely equal total costs, resulting in zero profit or loss. This point, known as the break-even point (BE), helps businesses assess the minimum output required to cover all expenses, with fixed costs playing a pivotal role as the baseline expenses that must be recovered through sales. By focusing on the interplay between fixed costs, variable costs, and selling price, the analysis provides insights into operational viability and risk exposure.[32] The break-even point is calculated using the formula:
where FC represents total fixed costs, P is the selling price per unit, and VC per unit is the variable cost per unit. This equation highlights the role of fixed costs in the numerator, emphasizing that they must be fully covered by the contribution margin—the difference between selling price and variable cost per unit—before any profit can be generated. For instance, if a firm has $50,000 in fixed costs, sells units at $20 each, and incurs $12 in variable costs per unit, the contribution margin is $8, yielding a break-even point of 6,250 units ($50,000 / $8). An increase in fixed costs directly raises the break-even volume, as the denominator remains unchanged unless pricing or variable costs adjust, underscoring the sensitivity of the threshold to fixed cost fluctuations.[32][33]
Graphically, break-even analysis is depicted on a chart where the total cost line—starting from the fixed costs on the y-axis and sloping upward due to variable costs—intersects the total revenue line, which begins at the origin and rises with a slope equal to the selling price per unit. This intersection marks the break-even volume, with the area above it representing profits and below it losses. Changes in fixed costs shift the total cost line vertically: higher fixed costs elevate the intersection point, requiring greater sales to achieve equilibrium, while the revenue line remains unaffected unless pricing changes. Such visualizations aid in understanding cost-volume-profit dynamics at a glance.[33]
Despite its utility, break-even analysis has notable limitations, particularly in its assumptions about fixed costs and relationships among variables. It presumes fixed costs remain constant across all output levels, which may not hold if semi-variable costs emerge or economies of scale alter cost structures. Additionally, the model assumes linear relationships between costs, volume, and revenue, ignoring non-linear realities such as fluctuating demand or production inefficiencies that can create multiple break-even points. It also overlooks the time value of money, making it less suitable for multi-period evaluations where discounting future cash flows is essential. These constraints necessitate complementary tools for more complex scenarios.[34][32]