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The IRS retail check
Publication 334 uses a shop with 300,000 of net receipts and 200,000 of cost of goods sold. That leaves 100,000 of gross profit. The shop’s markup policy aimed at a 33 1/3 percent spread.
Revenue (net receipts): 25% lower
Change revenue (net receipts) to 225,000 while keeping the other example values the same.
Revenue (net receipts): 25% higher
Change revenue (net receipts) to 375,000 while keeping the other example values the same.
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Quick answer
What does the Gross profit margin calculate?
What share of revenue remains after cost of goods sold? This calculator uses revenue (net receipts), and cost of goods sold to estimate gross profit as a share of revenue immediately in your browser.
With the values currently entered, the result is 33.3% — gross profit margin. It also shows gross profit, cost of goods sold, and cogs share of revenue.
How to use the Gross profit margin
- Replace the example values with your own numbers.
- Review the result and supporting figures as they update automatically.
- Check the formula and assumptions before using the estimate for a decision.
Inputs used
- Revenue (net receipts)
- Cost of goods sold
Gross profit margin formula
Gross profit = revenue − COGS. Gross profit margin = gross profit ÷ revenue.
Assumptions
- IRS Publication 334 figures gross profit as net receipts minus cost of goods sold. Net receipts are gross receipts minus returns and allowances.
- This is a planning ratio for one period you choose. Inventory methods, tax treatment, and extra Schedule C income are left out.
Verify the inputs
Authoritative sources
These sources explain the definitions, factors, or rules behind this tool. Their geographic scope is shown because an official source for one country is not automatically valid somewhere else.
Chapter 7 figures gross profit as net receipts minus cost of goods sold. It then tests accuracy as that profit divided by net receipts, compared with the markup policy.
Beginners’ guide to financial statementsUS Securities and Exchange CommissionScope: General investor education; US sourceWalks an income statement from sales to cost of sales, then to gross profit, operating expenses, and the bottom-line net earnings.
Profitability and the profit and loss statementFDIC Money Smart for Small BusinessScope: US small-business education; method is generalWrites the P&L as revenue − COGS = gross profit, then − overhead = operating profit, then − income tax = net profit. Profit margin is net profit ÷ revenue.
Sources do not endorse Calculum. Check the source date, scope, and your own documents before making a financial, tax, insurance, or reporting decision.
Practical guide
Gross profit margin example and edge cases
Gross profit is what is left after the cost of the goods you sold. IRS Publication 334 subtracts cost of goods sold from net receipts, then checks the result as a percentage of those receipts.
Example: The IRS retail check
Publication 334 uses a shop with 300,000 of net receipts and 200,000 of cost of goods sold. That leaves 100,000 of gross profit. The shop’s markup policy aimed at a 33 1/3 percent spread.
- Revenue (net receipts)
- 300,000
- Cost of goods sold
- 200,000
Calculated result33.3%gross profit margin
100,000 ÷ 300,000 is 33.3 percent. IRS says to compare that percentage with the markup you meant to take. A large gap can mean sales, purchases, or inventory were counted wrong.
Example results use the default display profile. The calculator above follows your selected country and units.
How to read the result
- Read the percent first. Then check gross profit in money. A high percent on a thin dollar amount still leaves little cash.
- Cost of goods sold belongs here. Rent, salaries, and tax come later on the net profit page.
Edge cases worth checking
You sell services, not goods
Publication 334 says most service businesses skip cost of goods sold. Gross profit then equals net receipts. Type 0 for COGS if that is how you keep the books.
Returns are still in the sales figure
Net receipts already subtract refunds and allowances. If your sales number still includes them, take them off before you type revenue.
What changes the result most
Revenue (net receipts)
Use a current amount for revenue (net receipts). Include fees or recurring costs that belong in the same figure.
Cost of goods sold
Use a current amount for cost of goods sold. Include fees or recurring costs that belong in the same figure.
Try a different scenario
Small changes show whether the answer is stable or sensitive.
Revenue (net receipts): 25% lower
225,00011.1%gross profit margin
Revenue (net receipts): 25% higher
375,00046.7%gross profit margin
Cost of goods sold: 25% higher
250,00016.7%gross profit margin
Common mistakes
Check revenue (net receipts)
IRS Publication 334 figures gross profit as net receipts minus cost of goods sold. Net receipts are gross receipts minus returns and allowances. Make sure this matches the number you enter.
Keep cost of goods sold consistent
This is a planning ratio for one period you choose. Inventory methods, tax treatment, and extra Schedule C income are left out. Use the same units and time period throughout the calculation.
Do not rely on one gross profit margin scenario
Run a cautious case and an optimistic case. The range is often more useful than one exact-looking number.
Use this result well
What share of revenue remains after cost of goods sold?
It does not replace a quote, contract, accountant, or local employment guidance.