No, revenue does not include costs. Revenue is the total money your business takes in from sales before any expenses are subtracted; once you subtract costs, what remains is profit, also called net income. The two figures sit on opposite sides of your books, and the IRS requires you to report them as separate line items on your tax return.
What Revenue Actually Contains
Revenue is sometimes called the “top line” because it sits at the top of a financial statement. It represents every dollar your business earns from customer transactions during a given period, with no reduction for what you spent to earn those dollars. If your store sells $500,000 worth of products in a year, your revenue is $500,000 whether it cost you $400,000 or $50,000 to produce and sell them.
Businesses earn revenue from two broad sources. Operating revenue comes from core activities: selling products, providing services, collecting fees. Non-operating revenue comes from secondary sources like interest on bank accounts, investment gains, or rent from property the business owns. Both count toward total revenue, and neither reflects any deduction for the costs of generating them.
Gross Revenue and Net Revenue
There is one adjustment that happens inside the revenue figure itself, before costs enter the picture. Gross revenue is the full amount collected from all sales. Net revenue is what remains after subtracting customer returns, price allowances for damaged goods, and discounts you offered. If your business collected $100,000 in sales but customers returned $4,000 worth of products, and you gave $2,000 in damage allowances and $2,000 in discounts, your net revenue is $92,000.
Net revenue is a more accurate picture of what your business kept from sales activity, but it still contains no operating costs. Rent, payroll, materials, and every other expense are treated separately. When accountants and the IRS refer to “gross receipts,” they mean gross revenue: the starting figure before any adjustments.
Costs Sit on the Other Side of the Ledger
Costs are money flowing out of your business to keep it running. They are tracked separately from revenue and fall into overlapping categories:
- Direct costs are expenses tied to producing a specific product or service, such as raw materials, factory labor, or packaging. Together they form your cost of goods sold (COGS).
- Indirect costs are overhead that supports the whole business rather than a single product, including rent, utilities, administrative salaries, and insurance.
- Fixed costs stay the same regardless of how much you sell, like a building lease or an annual software subscription.
- Variable costs rise and fall with production volume, like shipping fees, raw materials, and sales commissions.
Most costs fit more than one category. Rent is both indirect and fixed. Raw materials are both direct and variable. The categories are different lenses for analyzing where money goes, not different ledgers.
Some costs cannot be deducted in the year you incur them. When your business buys equipment, vehicles, or other assets that last more than a year, you generally spread the cost across the asset’s useful life through depreciation (for physical assets) or amortization (for intangibles like patents). An alternative is the Section 179 deduction, which lets you deduct the full cost of qualifying equipment in the year you place it in service rather than depreciating it over time.1Internal Revenue Service. Revenue Procedure 2025-32 – 2026 Adjusted Items
The IRS also limits which costs count as deductions at all. It allows deductions only for expenses that are “ordinary and necessary” for your trade or business, meaning common in your industry and helpful for running your operation.2Office of the Law Revision Counsel. 26 U.S. Code 162 – Trade or Business Expenses Political contributions, entertainment expenses, fines and penalties, and personal expenses are never deductible. Business gifts are capped at $25 per recipient.
How Revenue Turns Into Profit
Revenue and costs come together through a sequence of subtractions. Each step tells you something different about the business:
- Gross profit is revenue minus cost of goods sold. It shows how much you keep after covering direct production costs.
- Operating income is gross profit minus overhead expenses like rent, administrative salaries, and depreciation. It shows whether day-to-day operations are profitable.
- Net income is operating income minus interest payments, taxes, and any non-operating losses. This is your actual profit, the bottom line.
A simple run-through: your business earns $100,000 in revenue with $40,000 in direct production costs, so gross profit is $60,000. Subtract $25,000 in overhead and operating income is $35,000. After $5,000 in interest and $10,000 in taxes, net income is $20,000. Revenue told you the scale of the business. Net income tells you whether it is making money.
Turning the dollar figures into percentages makes comparison easier. Gross profit margin is gross profit divided by revenue, times 100. Net profit margin is net income divided by revenue, times 100. In the example above, the gross margin is 60% and the net margin is 20%. A shrinking margin over time signals that costs are growing faster than revenue, even if total revenue is climbing.
Why the IRS Cares About the Distinction
Because revenue and costs are different figures, tax returns treat them as different figures. Sole proprietors report gross receipts on Schedule C (Form 1040), Line 1, with individual expense categories broken out in Part II of the same form.3Internal Revenue Service. Instructions for Schedule C (Form 1040) – Profit or Loss From Business C corporations file Form 1120, reporting income on Lines 1 through 10 and deductions on Lines 12 through 28.4Internal Revenue Service. Instructions for Form 1120 – U.S. Corporation Income Tax Return The IRS calculates tax liability based on the profit remaining after allowable deductions, not on gross revenue.
Mixing the two in your records can be expensive. If an underpayment of tax results from negligence, which includes failing to keep adequate books and records, the IRS imposes a penalty equal to 20% of the underpaid amount.5Office of the Law Revision Counsel. 26 U.S. Code 6662 – Imposition of Accuracy-Related Penalty on Underpayments The same 20% penalty applies if your understatement of income tax exceeds the greater of 10% of the tax owed or $5,000 ($10,000 for most corporations). Those amounts are on top of the tax and interest already owed. Keeping revenue and costs cleanly separated in your books is what keeps the return accurate and the penalties off the table.