Net profit, also referred to as the bottom line, net income, or net earnings is a measure of the profitability of a venture after accounting for all costs. In a survey of nearly 200 senior marketing managers, 91 percent responded that they found the "net profit" metric very useful. In accounting, net profit is equal to the gross profit minus overheads minus interest payable for a given time period (usually: accounting period).
A common synonym for "net profit" when discussing financial statements (which include a balance sheet and an income statement) is the bottom line. This term results from the traditional appearance of an income statement which shows all allocated revenues and expenses over a specified time period with the resulting summation on the bottom line of the report.
In simplistic terms, net profit is the money left over after paying all the expenses of an endeavor. In practice this can get very complex in large organizations or endeavors. The bookkeeper or accountant must itemise and allocate revenues and expenses properly to the specific working scope and context in which the term is applied.
Definitions of the term can, however, vary between the UK and US. In the US, net profit is often associated with net income or profit after tax (see table below).
The net profit margin percentage is a related ratio. This figure is calculated by dividing net profit by revenue or turnover, and it represents profitability, as a percentage.
"How does a company decide whether it is successful or not? Probably the most common way is to look at the net profits of the business. Given that companies are collections of projects and markets, individual areas can be judged on how successful they are at adding to the corporate net profit."
Net profit: To calculate net profit for a venture (such as a company, division, or project), subtract all costs, including a fair share of total corporate overheads, from the gross revenues or turnover.
- Net profit ($) = Sales revenue ($) - Total costs ($)
Net profit is a measure of the fundamental profitability of the venture. "It is the revenues of the activity less the costs of the activity. The main complication is . . . when needs to be allocated" across ventures. "Almost by definition, overheads are costs that cannot be directly tied to any specific" project, product, or division. "The classic example would be the cost of headquarters staff." "Although it is theoretically possible to calculate profits for any sub-(venture), such as a product or region, often the calculations are rendered suspect by the need to allocate overhead costs." Because overhead costs generally don’t come in neat packages, their allocation across ventures is not an exact science.
Here is how you reach net profit on a P&L (Profit & Loss) account:
- Sales Revenue = Price (of product) X Quantity Sold
- Gross profit = sales revenue minus cost of sales and other direct costs
- Operating profit = Gross profit minus overheads and other indirect costs
- EBIT (earnings before interest and taxes) = operating profit + non-operating income
- Pretax Profit (EBT, earnings before taxes) = operating profit minus one off items and redundancy payments, staff restructuring minus interest payable
- Net profit = Pre-tax profit minus tax
- Retained earnings = Profit after tax minus Dividends
See also 
- EBITDA (Earnings before interest, taxes, depreciation and amortization)
- Net income
- Non-profit organization
- 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 0137058292. Content from this book used in this article has been licensed for modification and reuse under the Creative Commons Attribute Share Alike 3.0 and Gnu Free Documentation licenses. See talk. 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: Marketing Activities and Metrics Project.