Does Gross Sales Include Sales Tax? It Depends on Your State

You open your Shopify or eBay dashboard at the end of the quarter and the total sales figure is bigger than the money you actually kept. Somewhere inside that number is the sales tax your buyers paid at checkout, and you cannot tell whether to count it as revenue, put it on Schedule C, or leave it out of both.

Does gross sales include tax? For most US sellers, no. That flat "no" is where every other explanation stops, and it is wrong for sellers in a handful of states.

The rule that actually decides it is who the tax is legally imposed on. Get that straight and the rest follows: which of your four sales figures each report wants, why gross sales and net sales are not the same starting point, and why your 1099-K will never tie out.

Does gross sales include sales tax?

Sales tax you charge a customer is not revenue at any point. You collect it as an agent for the state, hold it, and hand it over. It never becomes yours, so it never belongs in your top line.

The arithmetic is small. A customer pays $108 on a $100 order at an 8% rate. Gross sales records $100. The other $8 goes to a liability account called sales tax payable and stays there until you file.

Now the part almost nobody says. Some states do not tax your customer's purchase at all. They tax you for the privilege of doing business, and measure the tax against what you took in.

When the tax is on you, passing it to the buyer does not turn it into a pass-through. It is part of what you received.

So the test is not what your receipt calls the line item. It is who the statute imposes the tax on. The IRS draws exactly this distinction in the Schedule C instructions, and it changes both the accounting and the return.

Gross sales, net sales, taxable sales and gross receipts are four different numbers

Four figures, four definitions, and two of them share a name across forms that want different things. This is the real source of the confusion.

Figure	What it includes	Includes sales tax?	Where you meet it
Gross sales	Everything you sold at selling price, before any deductions	No, when the tax is on the buyer	Platform reports, top of the income statement
Net sales	Gross sales minus returns, allowances and discounts	No	Income statement; Schedule C line 2 carries the returns and allowances
Taxable sales	Only the transactions where you charged tax	No, the tax sits on top of it	State sales tax returns
Gross receipts	All consideration received, with no deductions for costs	Depends who the state taxes	State excise and gross receipts returns

Gross sales and net sales differ only by what customers gave back. Returns, allowances and discounts are the deductions that turn gross sales into net sales, and neither figure has ever contained sales tax. If your net sales come out equal to your gross sales, that points at untracked returns rather than a flawless quarter.

Taxable sales is almost always the smallest of the four. Exempt goods, resale transactions and sales into states where you have no obligation all drop out, so taxable sales can be a fraction of gross sales. It is also the only one of the four that the sales tax itself is calculated against.

Gross receipts is the one that catches people, because states write their own definition and it is wider than the accounting one. Washington's Combined Excise Tax Return asks for a "gross amount" that the state defines as all consideration received, with no deduction for the costs of doing business. Read the form's own definition every time rather than reusing last quarter's number. The line-by-line walkthrough of a state return covers what each line wants once you have the figures.

The sales tax you collect is a liability, not revenue

Collected sales tax lives on the balance sheet, not the income statement. The liability grows with every taxable sale and shrinks each time you remit. It should never appear in your profit and loss at all.

One journal entry makes it concrete. On that $108 order: debit cash $108, credit revenue $100, credit sales tax payable $8.

Getting this wrong is not a tidiness problem. Every margin and profitability figure in your financial statements inherits the error, and you would be paying income tax on money already earmarked for the state. A seller doing roughly $1.5M in real sales who collects around $30M a year in state tax and fees would overstate its revenue by a factor of twenty if that pass-through money were booked as sales. Nothing about that business would be legible from its own accounts. Our breakdown of how revenue flows through an income statement sets out the order.

When gross sales does include the tax

A few states do not tax the transaction. They tax the business.

Hawaii has no sales tax. It runs a General Excise Tax assessed on business activity, and the state is unambiguous that the tax is on the business and not on the customer. Passing it to your buyer is optional, not required.

One detail in Hawaii's own rules proves the principle. Because GET you pass on becomes part of your gross income, it is taxable too, so the state publishes a grossed-up maximum pass-on rate higher than the headline one. On Oahu that ceiling is 4.7120% against a combined 4.5% rate.

You pay tax on the tax you passed along. Anyone treating that money as a pass-through has understated their gross and their liability at once.

New Mexico works the same way. Its gross receipts tax is imposed on businesses, and if you pass it to the purchaser the state requires it to be stated separately on the invoice. Washington's B&O tax is a third shape of the problem: it applies to gross income with no deduction for taxes, rent, labor or any other cost of doing business.

Rates, thresholds and filing rules differ in each: Hawaii, New Mexico and Washington.

What your platform's gross sales figure actually counts

Your dashboard already decided what to put in gross sales and did not ask you. Two platforms can use identical words for different figures, so treat every label as a variable, not a definition.

Shopify defines gross sales in its default reports as product selling price multiplied by ordered quantity, before discounts, returns, taxes, shipping and fees. Sales tax is out. But the same figure includes pending, cancelled and unpaid orders, which means it is not money you received either. Test and deleted orders are the only ones excluded.

Marketplace sellers routinely report the opposite, with a total sales column that has buyer-paid sales tax sitting inside it. Treat that as a common observation rather than a rule, and check your own platform's metric definitions.

One wrinkle makes dashboard figures genuinely unreliable. Where marketplace facilitator laws apply, the platform collects the sales tax and remits it directly. Those dollars may never pass through your books, and can still show up inside the total you are reading.

Where the number goes on Schedule C

You will often see this described as two methods the IRS lets you choose between, as long as you stay consistent. That is not what the instructions say. They describe two different situations, and which one you are in is not up to you.

• Sales tax imposed on your buyer that you collect and remit: not included in gross receipts, and not deductible as an expense either. It stays out of both sides.
• Sales tax imposed on you as the seller and collected from the buyer: include what you collected in gross receipts on line 1, then deduct it on line 23.
• A timely filing discount you keep: if your state lets you retain part of the sales tax you collected, that retained amount is income and goes on line 6.
• Sales tax you pay on business purchases: not a line 23 deduction. It becomes part of the cost of that property.

All four come straight from the line 23 instructions, which is where Schedule C groups taxes with your other deductible expenses. That third one catches people out, because the discount for filing on time feels like a rebate rather than earnings, and the IRS treats it as earnings.

Why your 1099-K will not match your books

Your 1099-K reports payments received for goods or services through payment cards, apps and online marketplaces. It is not a revenue statement and was never meant to be one.

Box 1a is where the mismatch starts. The instructions for Form 1099-K define its gross amount as the total dollar value of reportable transactions:

without regard to any adjustments for credits, cash equivalents, discount amounts, fees, refunded amounts, shipping amounts, or any other amounts

Shipping is named outright and the catch-all covers everything else, so where a buyer's payment included sales tax, that sales tax is inside box 1a.

A second gap sits one box over. Box 1a is not reduced by refunds, but box 3, the transaction count, explicitly excludes refund transactions. The two boxes are measuring different populations of the same year.

The threshold is worth stating precisely, because it is usually written as an "or". A marketplace or payment app reports only when the gross amount exceeds $20,000 and the transaction count exceeds 200. Both conditions. A form can still arrive when you are under them, and the IRS is explicit that you use it with other records to work out taxable income, which is the agency conceding the figure is an input rather than an answer.

So build the bridge deliberately: start at box 1a, then work down through fees, refunds, shipping and sales tax. The monthly boxes make that tractable. Expect more than one form, since card and marketplace payments are reported separately.

Building that bridge is payment reconciliation, and it runs the same way against a bank deposit as it does against box 1a.

What getting this right does not fix

Classifying the sales tax correctly tells you nothing about whether you should have been collecting it.

Nothing in your chart of accounts answers which states you owe, at what rate, or from what date. Thresholds are defined per state and the wording matters: New Mexico's remote seller test is written against taxable gross receipts, not total sales, so the number you measure against it is not the one at the top of your income statement. Our guide to economic nexus for remote sellers explains those tests.

Clean books also do not produce a filing calendar, or tell you when a new obligation started. The common failure is correct accounting treatment sitting on top of a wrong collection decision, and it is the second one that generates assessments.

Sorting revenue from collected tax is the easy half. Filing it is the other half, and what each line of a US sales tax return actually asks for picks up where this post stops. Quaderno keeps the two figures apart per transaction and per jurisdiction, so the number you report is the number you earned.