Accounting Profit Calculator

Background.

Sooner or later every business owner asks the blunt question: after paying for everything, what was left? Accounting profit is the answer an accountant gives — revenue for a period minus the costs the books actually record for that period. Wages, rent, materials, utilities, interest on loans and depreciation on equipment all count, because each one sits in the ledger with a dollar amount attached.

What it leaves out is anything nobody invoiced. Quit a salaried job to run a bakery and the pay you gave up is a real sacrifice, but no receipt records it, so it never reduces accounting profit. Economists call that an implicit cost and subtract it to reach economic profit; a bakery can post a healthy accounting profit and still leave its owner poorer than staying employed would have.

Nor is the figure the cash in the bank. Under accrual accounting, a job finished and invoiced in December counts as December revenue even if the customer pays in February. A $50,000 oven paid for in full is not a $50,000 expense that year; spread over ten years of straight-line depreciation it reduces profit by $5,000 a year. A profitable year can therefore end with a thin bank balance, and a lean year can look flush.

Taxable profit is a third figure again. Tax law sets its own rules on which expenses are deductible and how quickly equipment can be written off, so the profit on your financial statements and the profit on your tax return often differ.

The arithmetic itself is one subtraction: total revenue minus total explicit costs for the same period. A negative answer is an accounting loss.

What is accounting profit calculator?

Accounting profit is total revenue minus explicit costs over a stated period such as a month, a quarter or a year. Explicit costs are the expenses a business records because it paid, or owes, money for them: cost of goods sold, payroll, rent, insurance, interest and depreciation. The result is in dollars. If income tax is among the costs you subtract, it matches net income on the income statement; leave tax out and it is pre-tax profit. It excludes implicit costs such as the owner's forgone salary or the return the owner's capital could have earned elsewhere.

How to use this calculator.

1. 01Choose one period — a calendar year, a quarter, a month — and take both figures from that period only.
2. 02In Revenue, enter total sales for the period, net of returns and discounts, which is the top line of an income statement.
3. 03In Explicit accounting costs, enter the sum of every recorded expense for the same period: cost of goods sold, wages, rent, utilities, insurance, interest and depreciation. Add income tax only if you want an after-tax figure.
4. 04Leave out loan principal repayments and owner's draws or dividends; they move cash but are not expenses. Leave out the salary you could have earned elsewhere, which is an implicit cost.
5. 05Read the result in dollars: positive is a profit, negative is a loss for the period.

The formula.

Accounting profit = revenue − explicit accounting costs, or P = R − C. R is total revenue recognised in the period and C is the total of recorded expenses in that same period. There are no rates, constants or adjustments, so the result moves dollar for dollar with each input: another $1,000 of revenue adds exactly $1,000 of profit, and another $1,000 of cost removes it. Because both inputs have to describe the same span of time, the most common error is a mismatch — a full year of sales set against eleven months of expenses, or annual revenue against one quarter's rent. Dividing the result by revenue gives the profit margin, which lets you compare businesses of different sizes; the page stops at the dollar figure, but the margin is one division away. Costs cannot be entered as negative, so a supplier rebate should be netted off the expense it relates to.

A worked example.

Frequently asked questions.

References& sources.

1. [1]OpenStax, Rice University. Principles of Finance, 2022. Chapters 6–10. Retrieved 2026-08-06.
2. [2]U.S. Internal Revenue Service. Tax guidance current 2026. Official forms, instructions and tax topics. Retrieved 2026-08-06.
3. [3]U.S. Securities and Exchange Commission. Investor.gov current 2026. Investment products and risk. Retrieved 2026-08-06.