Gross sales do not include sales tax — they are the revenue before tax is added
Gross sales are the total dollar amount your business receives from selling goods or services, calculated before you subtract anything. Sales tax is money you collect on behalf of your state or local government and then send to them — it is not your revenue, so it does not count as gross sales.
If a customer buys an item for $100 and pays $8 in sales tax, your gross sales are $100. The $8 goes into a separate account to remit to your tax authority. This distinction matters for tax filings, loan applications, and any document that asks for your actual business income.
The confusion often happens because the customer's receipt shows a total that includes tax. But from your business accounting perspective, gross sales and the sales tax collected are two separate line items.
Key Takeaways
- Gross sales are the revenue before any deductions, and they exclude sales tax collected from customers.
- Sales tax is a liability you owe to the government, not income your business keeps.
- On tax returns and financial statements, gross sales and sales tax appear on different lines.
- When you remit sales tax to your state, you are sending money that was never yours to keep.
How gross sales appear on your tax return
On your federal income tax return (Form 1040 Schedule C for sole proprietors, or the equivalent for your business structure), you report gross sales as the top line of your business income. This is the $100 in the example above, not the $108 the customer handed over.
Your state income tax return, if your state has one, uses the same gross sales figure. The sales tax you collected does not appear here because it was never your money to report as income.
If you are filing a sales tax return with your state, that form asks for gross sales separately so the state can verify you collected the right amount of tax. They multiply your reported gross sales by the tax rate and compare it to what you actually sent in.
Why this matters for business loans and credit
When you explore for a business loan or line of credit, lenders ask for your gross sales to assess your business's strength. They want to know your actual revenue, not the inflated number that includes tax you collected on their behalf.
If you report $100,000 in gross sales plus $8,000 in sales tax as $108,000, a lender will catch the error during their review of your tax returns. This creates a red flag about your accounting practices and can slow down or derail the process.
The same applies if you are trying to sell your business or bring in a partner. Buyers and investors will look at your tax returns to verify your numbers, and they will see when ready that sales tax does not belong in gross sales.
The difference between gross sales and net sales
Gross sales are your total revenue before any deductions. Net sales are gross sales minus returns, refunds, and discounts you gave customers. Neither of these includes sales tax.
If you sold $100,000 in goods but customers returned $5,000 worth, your gross sales are still $100,000 and your net sales are $95,000. The sales tax you collected on the $95,000 that stayed sold is separate from both numbers.
Some business owners confuse net sales with "sales after tax," but that is not what net means in accounting. Net always refers to deductions you made for business reasons (returns, discounts, allowances), not taxes.
How to track sales tax separately in your records
Set up a separate account or line item in your accounting system for sales tax payable. When a customer buys something and you collect tax, record the sale amount in your sales account and the tax amount in the sales tax payable account.
Most point-of-sale systems and accounting software (QuickBooks, Xero, Wave) do this automatically. They separate the sale from the tax so your reports show gross sales without tax baked in.
If you are using a spreadsheet, create three columns: date, gross sale amount, and sales tax collected. At the end of each month, add up the gross sales column for your records and the tax column for your remittance. Never add them together.
What happens if you report sales tax as gross sales
If you include sales tax in your gross sales figure on your tax return, you are overstating your business income. This can trigger an audit because your reported income will not match what your bank deposits show (the bank will have the tax amount, but your tax return will claim it as income).
An auditor will ask you to explain the discrepancy. You will have to file an amended return, which delays your refund if you overpaid, or creates a bill if you underpaid income tax based on the inflated sales number.
The IRS and state tax authorities cross-check sales tax returns against income tax returns. If your gross sales on your income tax return do not match the gross sales you reported on your sales tax return, the mismatch will be noticed.
Sales tax on different types of transactions
Not every sale is subject to sales tax. Services, digital products, and items sold in certain states may be tax-exempt or taxed differently. But the rule stays the same: whatever tax you do collect does not count as gross sales.
If you run a service business and do not collect sales tax, your gross sales are straightforward what customers paid you. If you run a retail store and collect sales tax on some items but not others (groceries are often exempt), your gross sales are the pre-tax amount for all items, and your sales tax payable is only what you actually collected.
Some businesses operate in multiple states with different tax rates. Your gross sales are still the same — the revenue before tax — but the amount of tax you owe varies by location. Track which sales occurred in which state so you can remit the correct tax to each authority.
Frequently Asked Questions
If a customer pays me $108 total including tax, what do I record as my sale?
Record $100 as the sale and $8 as sales tax payable. Your gross sales are $100. The $8 is a liability you owe to the state, not income you earned.
Do I include sales tax when I calculate my profit?
No. Your profit is gross sales minus your business expenses. Sales tax does not reduce your profit because it was never your money. You collected it and will send it to the government.
What if I forgot to charge sales tax but the customer paid me anyway?
The amount the customer paid is still your gross sales. If you did not charge tax when you should have, you owe the tax from your own pocket. Report the full amount the customer paid as gross sales and record the tax you owe separately.
Does gross sales include tips or gratuities?
Tips are usually not included in gross sales for tax purposes, though this varies by state and industry. Check your state's rules. Sales tax is not collected on tips, and they are typically reported separately on your tax return.
If I give a customer a discount, does that change my gross sales?
A discount reduces your gross sales. If you sell something for $100 but give a $10 discount, your gross sales are $90. Sales tax is calculated on the $90, not the original $100.