Taxes

Net profit vs gross profit: formulas, differences, and when each matters

Published October 24, 2026 12 min read

Gross profit and net profit answer different questions: one focuses on direct costs, while the other reflects a wider set of expenses. Keeping the two distinct makes it easier to see where a business is earning money and where it is spending it.

• Gross profit is revenue after subtracting the cost of goods sold.
• Net profit is what remains after other business expenses and applicable costs are included.
• Revenue is not profit, and profit is not the same as cash available in the bank.
• Use gross profit to examine pricing and direct costs; use net profit to assess the broader result.
• Compare figures only when the methods and periods match.

What gross profit and net profit mean

Gross profit is revenue minus the direct costs of the goods or services sold, while net profit accounts for a wider range of expenses. The two figures describe different stages of a business’s results, not competing definitions of the same thing. If you resell products, separating the costs of sold inventory from other expenses gives each number a clearer meaning. The Reseller Taxes guide explains how reselling profit differs from sales and how it fits into tax reporting.

Gross profit shows what remains after direct costs

Gross profit tells you how much revenue is left after subtracting the direct costs tied to what you sold. For a reseller, that usually means the cost of the items that sold, rather than the cost of every item purchased during the period. This figure helps you examine the basic economics of buying and selling, before considering the wider costs of running the business. If the remaining amount is thin, you may want to look closely at what you paid for inventory or what buyers paid you.

Net profit includes operating expenses and other costs

Net profit is the amount left after direct costs and the other expenses included in the calculation have been deducted. These may include marketplace fees, postage, supplies, rent, and other ordinary business costs, depending on the business and its accounting method. Interest, taxes, and unusual one-time expenses may also affect a net figure, though statements can present these at different points. In other words, net profit takes the wider view of the business’s results.

How both figures differ from revenue and cash flow

Revenue is the amount earned from sales before costs are deducted, so it is not the same as either profit figure. Cash flow tracks money moving into and out of your accounts, which can differ from profit because of timing, unpaid bills, inventory purchases, or other transactions. A sale may count toward revenue before the buyer’s payment reaches your bank, for example. The Reseller Taxes explanation of Form 1099-K also helps clarify why a gross payment total can be larger than the profit you report.

How to calculate gross profit and net profit

You calculate gross profit by subtracting cost of goods sold from revenue, then calculate net profit by subtracting other included expenses and costs. The arithmetic is simple once the inputs are sorted into the right categories. For a reseller, that means identifying what buyers paid, what was refunded, which inventory actually sold, and which costs belong elsewhere. Good records make the calculation less of a guessing exercise.

Gross profit formula: revenue minus cost of goods sold

The basic formula is gross profit = revenue − cost of goods sold. If your business records refunds separately, account for them in arriving at the revenue figure used in your calculation, and apply the same method consistently from period to period. Cost of goods sold refers to the cost of the goods sold in that period, not automatically every purchase made during it. The Reseller Taxes guide covers tracking inventory costs and working out cost of goods sold.

Net profit formula: gross profit minus expenses, taxes, and other costs

To calculate net profit, start with gross profit and subtract the expenses and other costs included in your chosen calculation. What counts can depend on the statement or reporting method you are using, so label the result clearly rather than assuming every business uses an identical formula. The Reseller Taxes calculator is a planning tool for estimating reseller net profit and related tax amounts from entered figures. Its result is an estimate, not a tax return.

Where each figure appears on an income statement

An income statement generally works from revenue through costs and expenses to a final profit figure, though the exact labels and subtotals can vary. The table below shows a simplified way to read the sequence for a small reseller. It is a guide to the arithmetic, not a required format for every statement.

Reading down the statement helps you see which costs have already been deducted and which have not. It also prevents a common mix-up: comparing a gross figure from one report with a net figure from another as if they were equivalent.

A worked example of gross profit vs net profit

A hypothetical reseller with $12,000 in sales and $6,200 in direct inventory costs would have $5,400 in gross profit after accounting for refunds. This example uses round figures to show the sequence, not to predict what any particular business will earn. The same approach works whether you sell a few items or keep a larger inventory, as long as the records cover the same period. The important step is to keep each kind of cost in its proper place.

Calculate revenue and direct costs for a sample business

Suppose the reseller receives $12,000 in sales during a period and issues $400 in refunds. That leaves $11,600 after refunds. If the cost of the items that sold is $6,200, subtracting that amount gives gross profit of $5,400. The calculation focuses on the sold items, not the full amount spent on inventory that remains on hand.

Subtract operating expenses to find net profit

Now subtract the other expenses in the example from gross profit. The table gathers the figures in one place so you can follow the calculation from sales to net profit.

Here, the $2,100 in other expenses could include marketplace fees, postage, and supplies. After those costs, the example leaves $3,300 in net profit. The result is not the same as the cash that must be sitting in the business account, since payment timing and other cash movements are separate considerations.

See how refunds, fees, and inventory costs affect a reseller’s results

Refunds reduce the sales figure used in the example, while marketplace fees and postage are treated as other business expenses rather than direct inventory costs. Inventory matters in a different way: the cost of items sold is included in cost of goods sold, while unsold items are not simply added to that period’s sold-item cost. When reconciling marketplace payments, keep the pieces separate rather than treating a payout as profit. You can estimate your tax after you have organized the figures, but the estimate does not replace careful records or tax advice.

Which costs belong in each calculation

Direct costs belong in cost of goods sold when they are tied to the goods sold, while other costs of running the business are generally considered separately. The right classification depends on what the cost relates to and the accounting method being used. For a reseller, it helps to record each purchase and expense when it occurs rather than trying to reconstruct the details later. That distinction also explains why an inventory purchase and an immediate operating expense are not always treated alike.

Identify direct costs included in cost of goods sold

Cost of goods sold captures the cost assigned to the items that were sold during the period. If you buy a batch of inventory, the whole purchase does not necessarily become cost of goods sold immediately; some items may remain unsold. Keep records that connect an item or lot to its purchase cost and its sale. The inventory cost tracking guide discusses cost allocation and year-end inventory records.

Separate operating expenses from direct costs

Operating expenses are costs of running the business that are not the direct cost of the goods sold. For a reseller, fees, postage, and packing supplies may need to be distinguished from inventory costs when organizing records. A simple sorting routine can help keep those categories clear:

• Record the purchase cost of each item or inventory lot.
• Track marketplace and payment fees separately from inventory.
• Record postage and packing supplies as their own costs.
• Note the date and business purpose for other expenses.

This separation makes it easier to review gross profit first and then see how other costs affect net profit. It also gives you a clearer trail to use when checking your records against reports from a marketplace.

Account for interest, taxes, refunds, and one-time items

Refunds affect the revenue side of the calculation, while interest, taxes, and one-time items may be shown separately depending on the statement or method. Avoid assuming that an expense belongs in the same place on every financial report. If a cost is unusual, label it and preserve the supporting record so you can see how it influenced the period’s result. Clear labels make later comparisons more useful, especially when a one-off cost would otherwise obscure the ordinary pattern.

What each profit figure can tell you

Gross profit helps you assess direct costs and pricing, while net profit shows what remains after a broader set of costs. Neither figure answers every business question by itself. Looking at both lets you distinguish a problem with the economics of the goods sold from a problem with other expenses. For resellers, that can make routine decisions about sourcing, pricing, and spending more grounded.

Use gross profit to assess pricing and direct costs

Gross profit can help you judge whether sales prices are covering the direct cost of the inventory sold. If the figure changes, check whether prices, purchase costs, refunds, or the mix of items sold changed as well. A good gross result does not guarantee an overall profit, since operating expenses still have to be considered. But it gives you a useful first view of the sale itself.

Use net profit to evaluate overall profitability

Net profit gives you a broader view because it includes more of the costs involved in running the business. It can help you see whether sales are leaving enough after expenses, rather than relying on revenue alone as a sign of success. If the amount is lower than you expected, review the underlying categories before drawing a conclusion. To plan for taxes, the free Reseller Taxes calculator can estimate net profit and related amounts from the figures you enter.

Compare profit margins to track changes over time

Profit margins express profit in relation to revenue, which can make comparisons across periods with different sales levels more informative. Use the same definitions for revenue, cost of goods sold, and expenses each time. The table below offers a simple way to think about what a change in each measure might prompt you to check.

A change is a signal to investigate, not an explanation by itself. Comparing like periods and consistent categories can show whether the movement is tied to sales, direct costs, or the wider expense base. For a separate view of the relationship between profit measures and cash, see this discussion of the profit and cash-flow distinction.

Common mistakes when comparing gross and net profit

The most common comparison mistakes come from mixing up sales and profit, misplacing inventory costs, or using inconsistent periods and methods. Each can make a business appear more or less profitable than it is. A quick review of definitions and records usually helps identify the source of the mismatch. The key is to compare numbers that describe the same thing.

Confusing gross profit with gross sales

Gross sales or revenue is the amount before costs are subtracted; gross profit is what remains after cost of goods sold is deducted. A marketplace report or payment form may show gross payments rather than the profit you earned. Refunds, fees, postage, and inventory costs all affect the path from gross payments to profit. Treating a gross sales figure as earnings skips that calculation.

Treating inventory purchases as an immediate expense

An inventory purchase is not automatically the same as an expense for goods sold during that period. If some of the stock remains unsold, its cost generally needs to be tracked with the inventory rather than counted as the cost of items already sold. Mixing the two can distort both gross profit and net profit. Keep purchase records and sales records connected so you can assign costs to the correct items and period.

Comparing figures calculated with different methods or periods

A comparison only tells you much when the figures use compatible definitions and cover matching periods. One report may deduct refunds before showing revenue, while another may display them separately; expense classifications can differ too. Check the labels, dates, and accounting method before deciding that a business improved or slipped. Consistency turns a collection of numbers into a useful comparison.

Conclusion

Gross profit shows what remains after direct costs, and net profit shows what remains after a broader set of expenses. Use both figures to understand whether your results are being shaped by the goods you sell or by the wider cost of operating, and keep your records consistent as you compare periods. If you are organizing reseller figures, consider trying the free self-employment tax calculator as a planning aid. This is general information, not tax advice. Talk to a CPA or enrolled agent about your situation.

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