Concept Architecture
Concept
Theoretically, Standard Costing is a costing methodology in which predetermined standard costs are assigned to the resources required to produce a healthcare service or intervention. It is founded on management accounting and cost control theory, providing a benchmark against which actual costs can be compared. In health economics, standard costing facilitates consistent estimation of healthcare costs, supports budgeting and enables systematic analysis of cost variances across providers, services and time periods.
Mathematically, standard costing represents the expected cost of an activity as the product of standard resource quantities and predetermined standard unit costs. Differences between actual and standard costs are measured using variance analysis, allowing analysts to identify inefficiencies arising from changes in resource prices, utilisation or operational performance. These variances provide information for performance management and financial planning.
In practice, standard costing is implemented using standard treatment protocols, clinical pathways or nationally published reference costs. Healthcare providers establish standard quantities for labour, consumables, equipment and overheads, together with standard unit costs. Actual expenditure is then compared with expected expenditure to identify cost overruns, efficiency gains or operational variation. Standard costing is widely applied in budgeting, service planning and economic evaluation where consistent costing methods are required.
Purpose
Used to estimate healthcare costs using predetermined standard resource values and to evaluate operational performance by comparing standard costs with actual expenditure through variance analysis.
Mathematical Formulae
Primary Formula
Standard Cost = SQ ? SP
where:
- SQ = standard quantity
- SP = standard price or unit cost
Supporting Formulae
Cost Variance:
Cost Variance = Actual Cost ? Standard Cost
Standard Cost for multiple resources:
Total Standard Cost = ?(SQ? ? SP?)
Price Variance:
Price Variance = AQ ? (AP ? SP)
where:
- AQ = actual quantity
- AP = actual price
Related Mathematical Methods
- Variance Analysis
- Cost Accounting
- Cost Analysis
- Budget Variance Analysis
- Micro-Costing
- Cost Function
Example
A hospital establishes a standard cost for a diagnostic procedure consisting of:
- Standard nursing time: 1.5 hours ? �40/hour = �60
- Standard consumables: �35
- Standard equipment allocation: �55
Standard Cost = �60 + �35 + �55 = �150
If the actual cost of delivering the procedure is �162, then:
Cost Variance = �162 ? �150 = �12 unfavourable
The variance indicates that the procedure cost exceeded the established standard.
Excel Implementation
| Function | Example Formula | Health Economics Application |
|---|---|---|
| SUMPRODUCT | =SUMPRODUCT(StandardQuantityRange,StandardCostRange) | Calculates total standard cost across all resources. |
| SUM | =SUM(StandardCostRange) | Aggregates standard costs for a healthcare intervention. |
| LET | =LET(Actual,B2,Standard,C2,Actual-Standard) | Calculates cost variance using readable variable names. |
| IF | =IF(B2>C2,"Unfavourable","Favourable") | Classifies cost variances for performance reporting. |
| XLOOKUP | =XLOOKUP(Resource,ResourceList,StandardCostList) | Retrieves standard unit costs from a reference table. |
VBA (Optional)
VBA can automate standard cost calculations, variance analysis and monthly performance reports across healthcare departments and service lines.
Sources
- Drummond MF, Sculpher MJ, Claxton K, Stoddart GL, Torrance GW. Methods for the Economic Evaluation of Health Care Programmes. Oxford University Press.
- Horngren CT, Datar SM, Rajan MV. Cost Accounting: A Managerial Emphasis.
- Briggs A, Claxton K, Sculpher M. Decision Modelling for Health Economic Evaluation. Oxford University Press.
- NICE. Health Technology Evaluation Manual.
- ISPOR Good Practices for Costing Methodology.
Related Concepts (2)
Library
Publications
2
Methods for the Economic Evaluation of Health Care Programmes — Drummond, Sculpher, Claxton, Stoddart & Torrance, 4th Edition ed., 2015 (Oxford University Press)
The standard international reference text for economic evaluation methods in health care, covering cost-effectiveness, cost-utility and cost-benefit analysis, measurement of costs and outcomes, evidence synthesis, and the characterisation of uncertainty.
BookView source →An Introduction to Costing and the Types of Costs Used within Health Economic Studies — Hugo C. Turner, Juan Carlos Rivillas-Garcia, Shankar Prinja, Tran Minh Hung, Sushant V. Dabak, Benjamin A. Asare, Mark Jit and Yot Teerawattananon, 9(6):849–868 ed., 2025 (PharmacoEconomics Open)
Current methodological overview of cost terminology, resource identification, measurement and valuation in health-economic studies.
Journal ArticleView source →
Frequently Asked Questions (6)
What is standard costing?
A costing method that assigns predetermined, expected costs to services based on historical or engineered estimates rather than actual costs incurred.
Source: Horngren, Datar & Rajan 2015
How does standard costing work?
A predetermined cost per unit of output is established in advance, built from expected quantities of each input and expected prices. Actual costs are then recorded and compared against that standard, and the difference is analysed as a variance separated into price and usage components. The standard functions as the benchmark against which performance is measured, so the whole system depends on it being set at a defensible level. Variances are normally reported monthly against the standard, which is what allows departures to be identified while the period is still current rather than after the accounts close.
Source: Horngren, Datar & Rajan 2015
Where do the standards in standard costing come from?
Two sources, producing different benchmarks. An engineered standard is derived from analysis of what the process should consume when performed properly, which is demanding to establish and describes a performance that may never have been achieved. A historical standard is derived from what the process has consumed, which is easy to establish and embeds whatever inefficiency existed when it was set. The choice determines whether a persistent adverse variance indicates poor performance or an unrealistic benchmark. Whichever basis is adopted should be stated, since a variance means something quite different depending on whether the benchmark describes achievable or historical performance.
Source: Horngren, Datar & Rajan 2015
What does standard costing offer that actual costing does not?
A benchmark against which performance can be assessed, since actual cost alone shows what was spent without indicating whether it should have been. It also simplifies accounting, because output can be valued at standard cost as it is produced rather than waiting for actual costs to be assembled. And it directs management attention through variance reporting, which identifies where actual performance departed from expectation rather than requiring every line to be reviewed. It also supports pricing and budgeting, since a standard cost per unit multiplied by expected volume produces a budget that can be flexed as activity changes.
Source: Horngren, Datar & Rajan 2015
What are the limitations of standard costing in health services?
Clinical work varies substantially between patients, so a single standard per episode misdescribes most of them and case mix change appears as an adverse usage variance. Standards require regular revision as practice changes, and revision is frequently deferred. The approach also assumes a repetitive process with stable inputs, which fits laboratory and pharmacy operations better than it fits complex care, where the variation is the substance of the work rather than noise around a standard. Where variation is the substance of the work rather than deviation from a norm, patient-level costing describes the position better than a standard with variances around it.
Source: Gapenski 2015
How should variances from standard costing be interpreted?
As prompts for enquiry rather than as verdicts, since a variance indicates a difference from the benchmark without indicating whether the benchmark or the performance was at fault. Persistent variances in one direction usually signal that the standard is wrong rather than that performance is consistently poor. Price and usage variances should be reviewed together, since a decision producing a favourable variance on one frequently produces an adverse variance on the other. Investigation should be reserved for variances that are material, persistent and within someone's control, since examining every difference consumes more effort than it recovers.
Source: Horngren, Datar & Rajan 2015
Trust Record
Verified by Dr Darrin Baines
British health economist
Professional identity: darrinbaines.org
Verification date: 8 Aug 2025
Content version: 1.0.0
Canonical Identity
- Persistent URI
- https://healtheconomics.wiki/concept/standard-costing
- Term code
- HE-EE-CM-015
Stable URI · Machine-readable · Resolvable · CC BY 4.0