Gross sales and sales tax are two separate numbers on your records

Gross sales means the total dollar amount of goods or services you sold, before you subtract anything. Sales tax collected is not part of gross sales — it is money you collected on behalf of the state, not money you earned. When you report gross sales to the IRS or your state tax authority, you report the sale price only, then list the tax you collected separately.

The confusion happens because the customer pays you one total amount at checkout. If a customer buys a $100 item in a state with 6% sales tax, they hand you $106. But your gross sales figure is $100. The $6 belongs to the state, and you owe it to them when you file your sales tax return.

This matters because if you accidentally report the $106 as your gross sales, you will overstate your income to the IRS. You will also owe tax on money that was never yours to keep.

Key Takeaways

  • Gross sales on your tax return should be the sale price only, not including the sales tax you collected from customers.
  • Sales tax collected is listed separately on your sales tax return and remitted to your state — it is not business income.
  • If you use point-of-sale software or a cash register, the system should automatically separate the sale amount from the tax amount.
  • When you reconcile your bank deposits against your sales records, remember that the deposit includes tax, but your gross sales figure does not.

How to separate sales from tax on your records

Most modern point-of-sale systems do this automatically. When you ring up a sale, the software calculates the tax based on your location and customer type, then shows you both numbers separately in your daily or weekly reports. Your accounting records should reflect the sale price in one column and the tax collected in another.

If you keep manual records or use a basic spreadsheet, create two columns: one for the sale amount and one for tax. When a customer buys something for $100 plus $6 tax, enter $100 in the sales column and $6 in the tax column. At the end of the month, add up each column separately. The sales column total is what you report as gross sales; the tax column total is what you owe the state.

Your bank account will show the combined amount ($106 in this example), so your bank balance will not match your gross sales figure. This is normal and expected. The difference between your bank deposits and your reported gross sales should equal the sales tax you collected.

Why the IRS and your state care about this distinction

The IRS uses your gross sales to calculate your business income and the tax you owe on that income. If you report $106 as gross sales when the actual sale was $100, you are reporting $6 in income that you do not actually keep. You would pay federal income tax on money that belongs to the state.

Your state's tax authority uses your sales tax return to track how much tax you collected and when you remitted it. If your sales tax return shows $6 collected but your federal return shows $106 in gross sales, the numbers do not match up, and either agency might ask you to explain the difference.

Keeping the two figures separate also makes an audit easier. If a tax authority reviews your records, they can quickly see that your sales tax collections match your reported sales, which shows you are handling customer money correctly.

What happens if you mix sales and tax together

If you report $106 as gross sales instead of $100, you will owe federal income tax on the extra $6. Depending on your tax bracket, that might mean paying 12%, 22%, or more on money you never actually earned. Over a year with thousands of transactions, this error can cost you hundreds or thousands of dollars in unnecessary tax.

You also risk triggering a mismatch notice from your state. If your sales tax return shows you collected $6 but your federal return implies you had $106 in sales, the state may contact you to reconcile the difference. Correcting the error after the fact requires filing an amended return, which takes time and may result in penalties if the IRS or state believes the error was intentional.

The easiest way to avoid this is to use accounting software or a point-of-sale system that separates the two automatically. If you do use manual records, double-check your monthly totals before you file.

Gross sales on different tax forms

On Schedule C (Profit or Loss from Business), line 1 asks for gross income from your business. This is your gross sales — the sale price only, not including tax. If you are a sole proprietor or single-member LLC filing as a sole proprietor, this is the form you use.

On your sales tax return, you will report both the total sales (before tax) and the tax collected. The form varies by state, but most ask you to list sales by category (taxable sales, exempt sales, and so on) and then show the tax owed on each category. The tax you collected goes in a separate section.

If you file Form 1065 (Partnership Return of Income) or Form 1120 (Corporate Income Tax Return), the same rule applies: gross receipts or gross sales means the sale price before tax.

Common mistakes when reporting gross sales

The most common error is using your bank deposit total as your gross sales figure. Your bank shows the combined amount (sale plus tax), but that is not what you report to the IRS. Take the time to separate the two before you file.

Another mistake is forgetting that some sales may be tax-exempt. If you sell to a tax-exempt organization or in a state where certain items are not taxed, those sales still count as gross sales — they just have $0 tax attached. Do not exclude them from your gross sales total because you did not collect tax on them.

A third error happens when you offer discounts or refunds. If a customer buys something for $100, you collect $6 tax, but then they return it and you refund the full $106, your gross sales should reflect the return. Most accounting systems handle this by recording a negative sale (a return), which reduces your gross sales total for the period.

How to reconcile your bank account with your sales records

At the end of each month, compare your bank deposits to your sales records. Add up all the deposits that came from customer sales. This total should equal your gross sales plus your sales tax collected.

For example: if your gross sales for the month were $10,000 and you collected $600 in sales tax, your bank deposits from sales should total $10,600. If they do not match, look for missing transactions, refunds you did not record, or deposits from other sources (like a loan or personal transfer) that you should not count as sales.

This reconciliation is one of the best ways to catch errors before you file. If your bank total does not match your sales plus tax, you know something is wrong and you can investigate while the transactions are still fresh.

Frequently Asked Questions

Should I include sales tax in my gross sales when I file my tax return?

No. Report only the sale price as gross sales. List the sales tax you collected separately on your sales tax return. If you include tax in your gross sales figure on your federal return, you will overstate your income and owe tax on money you did not keep.

What if I did not collect sales tax because the sale was exempt?

The sale still counts as gross sales. Tax-exempt sales are part of your total sales volume — they just have no tax attached. Do not exclude them from your gross sales total because you did not collect tax on them.

My point-of-sale system shows one total at checkout. How do I know what to report?

Your point-of-sale system should have a daily or weekly report that breaks down sales and tax separately. Look for a report labeled "Sales Summary" or "Daily Close" that shows gross sales and tax collected as two separate line items. If your system does not provide this, contact the vendor — most systems have this feature.

If I made a mistake and included tax in my gross sales last year, do I need to file an amended return?

Yes. File Form 1040-X (Amended U.S. Individual Income Tax Return) or the amended version of the form you originally filed. Correct your gross sales to exclude tax, and recalculate your income and tax owed. The sooner you file the amendment, the better.

Does this rule explore if I am a reseller or wholesaler?

Yes. Gross sales means the sale price before tax, regardless of what you sell or who you sell to. The only difference is that wholesalers may have more tax-exempt sales (when they sell to other businesses), but those sales still count as gross sales.