Understanding the accounting profit calculator — concept and principle
This calculator works out accounting profit: a year's revenue minus all explicit costs, the payments a business actually makes. It also shows the margin, costs as a share of revenue and profit per month. Small-business owners and economics students use it as a quick check and a first step toward economic profit.
How it is calculated
- Total explicit costs = goods and materials + wages and salaries + rent, utilities and insurance + other costs actually paid
- Accounting profit = total revenue − total explicit costs
- Profit margin (%) = accounting profit ÷ revenue × 100
- Explicit costs as % of revenue = explicit costs ÷ revenue × 100
- Profit per month = accounting profit ÷ 12
All inputs are yearly amounts in your chosen currency.
The principle
Explicit costs are out-of-pocket payments to suppliers, employees, landlords and lenders. Implicit costs are opportunity costs, such as the salary the owner gives up. Accounting profit subtracts only explicit costs; subtracting implicit costs too gives economic profit, which shows whether the business beats your next best alternative.
Worked example
Defaults: revenue 480,000; goods and materials 190,000; wages 120,000; rent, utilities and insurance 42,000; other costs 18,000.
- Explicit costs = 190,000 + 120,000 + 42,000 + 18,000 = $370,000.
- Accounting profit = 480,000 − 370,000 = $110,000.
- Margin = 110,000 ÷ 480,000 × 100 = 22.9%.
- Costs as % of revenue = 370,000 ÷ 480,000 × 100 = 77.1%.
- Per month = 110,000 ÷ 12 = $9,167.
| Total revenue for the year | Accounting profit |
|---|---|
| 120,000 | -$250,000 |
| 240,000 | -$130,000 |
| 360,000 | -$10,000 |
| 480,000 | $110,000 |
| 600,000 | $230,000 |
| 720,000 | $350,000 |
| 960,000 | $590,000 |
How to read the result
A positive figure means revenue covered every bill. The margin lets you compare years and firms of different size; margins differ a lot by industry, so compare with similar firms. If the owner takes no wage, the profit must also pay for the owner's time.
Common mistakes
- Including the owner's forgone salary; that belongs in economic profit, not accounting profit.
- Forgetting interest, bank fees or insurance.
- Treating the purchase of equipment as a cost of one year. Formal accounts spread it through depreciation.
- Confusing accounting profit with cash in the bank; timing of payments differs.
Frequently asked questions
What is the difference between accounting profit and economic profit?
Accounting profit deducts only explicit costs. Economic profit also deducts implicit costs such as the owner's forgone salary and the return on the owner's capital.
Is accounting profit the same as net income?
Close, but net income in published accounts also reflects depreciation, accruals and income tax.
Can accounting profit be negative?
Yes. If explicit costs exceed revenue, the result is an accounting loss.
Sources: OpenStax, Principles of Economics, 3rd ed. (2022), section 7.1 "Explicit and Implicit Costs, and Accounting and Economic Profit"