Concept Architecture
Concept
Theoretically, Administrative Cost Ratio is a financial performance measure that quantifies the proportion of total expenditure devoted to administrative activities rather than direct healthcare delivery or benefit payments. It exists to assess organisational efficiency by evaluating the resources consumed by management, claims processing, information systems, marketing and other administrative functions. In health economics, the measure is widely used to compare insurers, healthcare organisations and health systems with respect to operational efficiency.
Mathematically, Administrative Cost Ratio is represented as the ratio of administrative expenditure to total expenditure, total revenue or total healthcare expenditure, depending on the reporting framework. The measure is a simple proportion that facilitates comparisons across organisations and over time. Lower ratios generally indicate a smaller share of resources devoted to administration, although interpretation must consider differences in organisational structure, regulatory requirements and service complexity.
In practice, Administrative Cost Ratio is calculated from audited financial statements or management accounts by identifying administrative expenses and dividing them by the chosen denominator. Administrative expenses typically include management salaries, information technology, claims administration, customer services, finance and corporate overheads. The ratio is routinely monitored by healthcare organisations, insurers and regulators as part of financial performance assessment and benchmarking.
Purpose
Used to evaluate organisational efficiency, compare administrative spending across healthcare organisations, monitor operational performance, support financial benchmarking and assess the proportion of healthcare resources consumed by administration.
Mathematical Formulae
Primary Formula
Administrative Cost Ratio = Administrative Costs � Total Expenditure
Supporting Formulae
Administrative Cost Ratio (%) = (Administrative Costs � Total Expenditure) ? 100
Alternative reporting form:
Administrative Cost Ratio = Administrative Costs � Total Revenue
Related Mathematical Methods
- Ratio analysis
- Financial performance analysis
- Efficiency measurement
- Cost allocation
- Benchmarking
Example
A health insurer reports annual administrative costs of �42 million and total expenditure of �840 million.
Administrative Cost Ratio = �42 million � �840 million = 0.05
Administrative Cost Ratio (%) = 0.05 ? 100 = 5%
The insurer therefore spends 5% of total expenditure on administration and 95% on healthcare benefits and other expenditures.
Excel Implementation
| Function | Example Formula | Health Economics Application |
|---|---|---|
| SUM | =SUM(B2:B20) | Calculates total administrative costs. |
| SUM | =SUM(C2:C20) | Calculates total organisational expenditure. |
| Division | =SUM(B2:B20)/SUM(C2:C20) | Calculates the Administrative Cost Ratio. |
| Percentage Format | =SUM(B2:B20)/SUM(C2:C20) | Displays the ratio as a percentage for financial reporting. |
VBA (Optional)
A VBA routine can automatically calculate administrative cost ratios from imported financial statements and produce benchmarking reports across healthcare organisations.
Sources
- Drummond MF, Sculpher MJ, Claxton K, Stoddart GL, Torrance GW. Methods for the Economic Evaluation of Health Care Programmes.
- Gapenski LC, Reiter KL. Healthcare Finance: An Introduction to Accounting and Financial Management.
- Cleverley WO, Cleverley JO, Song PH. Essentials of Health Care Finance.
- OECD. A System of Health Accounts (SHA 2011).
- ISPOR Good Practice Reports.
Related Concepts (2)
Library
Publications
1
Uncertainty and the Welfare Economics of Medical Care — Kenneth J. Arrow, Vol. 53, No. 5 ed., 1963 (American Economic Review)
The founding paper of health economics as a discipline, analysing how uncertainty, asymmetric information, trust and the special features of medical markets prevent them from behaving like ordinary competitive markets — the intellectual origin of the entire field.
Journal ArticleView source →
Frequently Asked Questions (6)
What is the administrative cost ratio?
A measure of the proportion of an insurer's revenue spent on administrative functions, such as claims processing, rather than actual claims.
Source: Cutler DM, Zeckhauser RJ. The anatomy of health insurance. In: Culyer AJ, Newhouse JP, eds. Handbook of Health Economics. Vol 1A. Elsevier; 2000:563-643. doi:10.1016/S1574-0064(00)80170-5.
What proportion of an insurer's revenue does the administrative cost ratio track?
The administrative cost ratio tracks the proportion of an insurer's revenue that goes on administrative functions, such as claims processing and overheads, rather than on the claims themselves. It shows how much of each premium pound is consumed running the insurer instead of paying for care. A high ratio suggests that a large slice of premiums is being spent on administration, leaving less for benefits, which matters to regulators and enrollees judging value. The share of revenue spent on running the insurer is what it tracks. Cutler and Zeckhauser (2000) set out the anatomy of insurance.
Source: Cutler & Zeckhauser 2000
What does the administrative cost ratio measure?
The administrative cost ratio measures the proportion of an insurer's revenue spent on administrative functions, such as claims processing, rather than on actual claims, so it indicates the share going to administration. So the administrative cost ratio measures administrative spending share, which is why it is a proportion, since it compares administrative spending with revenue, and measuring the share of revenue spent on administration rather than claims means the administrative cost ratio indicates how much of the insurer's revenue goes to administrative functions.
Source: Cutler & Zeckhauser 2000
Why does the administrative cost ratio matter?
The administrative cost ratio matters because a higher ratio means more revenue goes to administration rather than paying for care, so it indicates efficiency and how much of the premium supports claims. So the administrative cost ratio matters for efficiency, which is why it is watched, since a high ratio means more spent on administration and less on care, and the administrative cost ratio matters because it shows the share of revenue going to administration rather than claims, indicating the insurer's efficiency and how much supports care.
Source: Cutler & Zeckhauser 2000
What does a high administrative cost ratio indicate?
A high administrative cost ratio indicates that a large proportion of the insurer's revenue is spent on administrative functions rather than on claims, suggesting relatively high administrative costs. So a high administrative cost ratio indicates high administrative spending, which is why it signals lower efficiency, since more revenue going to administration means less to claims, and a high administrative cost ratio indicates that a large share of revenue supports administration rather than care, reflecting relatively high administrative costs.
Source: Cutler & Zeckhauser 2000
What administrative functions does the ratio cover?
The administrative cost ratio covers administrative functions such as claims processing, and other administration involved in running the insurance, as distinct from the actual claims paid for care. So the ratio covers administrative functions like claims processing, which is why it excludes claims, since it measures spending on administration rather than care, and covering functions such as processing claims and running the insurance means the administrative cost ratio captures the administrative spending, separate from the claims paid, as a share of revenue.
Source: Cutler & Zeckhauser 2000
Trust Record
Verified by Dr Darrin Baines
British health economist
Professional identity: darrinbaines.org
Verification date: 8 Jan 2026
Content version: 1.0.0
Canonical Identity
- Term code
- HS-HP-HI-004
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