Most guides on this topic blur two very different things: the sales tax you collect from buyers and the income tax you owe on your own profit. They are not the same, they go to different places, and Shopify handles one far more than the other. This guide keeps them separate and shows the numbers behind each.
What counts as reportable income
Your reportable income is your profit, not your sales, and definitely not your bank deposits. The number that hits your account from Shopify Payments is a net settlement — it bundles sales, minus processing fees, minus refunds, plus or minus adjustments and chargebacks, on a delayed rolling schedule. A payout almost never equals your sales for the same window.
So the first rule of clean reporting is: book gross sales at the top, then record fees and refunds on their own lines below. The payout is the cash consequence at the bottom, never the revenue figure. Booking the net deposit as "sales" understates revenue and hides your fees, which makes the whole return impossible to defend.
If you have never separated these lines before, our guide on how to set up bookkeeping for an ecommerce store walks through the account structure that makes this automatic.
Report profit, not the number on your 1099-K
A 1099-K reports your gross payment volume before fees, refunds, and cost of goods. Your taxable income is your net profit, which is far lower. Confusing the two is the single most expensive mistake first-year sellers make.
Say you run a t-shirt store on Shopify and it moves 300 orders in a month at about a $32 average. Using Shopify Payments' commonly quoted online rate of roughly 2.9% plus 30¢ per transaction (A2X's Shopify fees breakdown), here is what an honest monthly income statement looks like. All figures are illustrative.
| Line | Amount |
|---|---|
| Gross sales (300 × ~$32) | $9,600 |
| Less: discounts (a 10%-off code) | −$480 |
| Less: refunds (9 orders) | −$290 |
| Net sales | $8,830 |
| COGS — POD production (300 × ~$12) | −$3,600 |
| COGS — payment processing | −$346 |
| Gross profit | $4,884 |
| Gross margin | 55.3% |
| Ad spend (Meta + Google) | −$3,000 |
| Shopify plan, apps, tools | −$270 |
| Owner draw / contractor | −$500 |
| Operating profit | $1,114 |
The product is healthy at $4,884 ÷ $8,830 = 55.3% gross margin, but ad spend eats most of it. Your taxable profit here is around $1,114 for the month — not the $9,600 a 1099-K would show, and not the ~$8,800 that lands as payouts. That gap is exactly why separating gross margin on a Shopify store from your ad-driven bottom line matters at tax time.
Notice that ad spend sits in operating expenses, below gross profit — never in COGS. Burying acquisition cost in COGS inflates your margin and hides that customer acquisition is your real risk, a point we unpack in the walkthrough on gross profit after Facebook ads.
Will you even receive a 1099-K?
For the 2025 tax year and beyond, a payment processor must send a 1099-K only when your gross payments exceed $20,000 and your transactions exceed 200 — both conditions, not either. The One Big Beautiful Bill reverted the threshold to that pre-2021 level, so the much-publicized $600 rule no longer applies, per the IRS FAQ on the reverted threshold.
Here is the trap every thin SERP result glosses over: not getting a form does not make your income tax-free. You report and owe tax on your profit regardless. Some states also set lower 1099-K thresholds than the federal one, so you may get a form from a low-threshold state even under the $20,000 federal bar — another reason to check your own state's rules.
Income tax, self-employment tax, and quarterly estimates
If you run as a sole proprietor or single-member LLC, your store's profit flows onto your personal return, and nobody withholds tax for you. That creates two obligations most new sellers underestimate.
First, self-employment tax. On top of ordinary income tax, sole proprietors owe SE tax of 15.3% — 12.4% for Social Security plus 2.9% for Medicare — on net self-employment earnings, according to the IRS estimated-tax guidance. On $1,114 of monthly profit, that is roughly $170 in SE tax alone before income tax even enters the picture.
Second, quarterly estimated payments. Because nothing is withheld, the IRS expects four installments across the year rather than one April payment. For 2026 the due dates are April 15, June 16, September 15, and January 15, 2027, per Kiplinger's estimated-tax deadline schedule.
To dodge the underpayment penalty, aim for a safe harbor: pay at least 90% of your current-year tax, or 100% of last year's, rising to 110% if your prior-year AGI topped $150,000, as the IRS estimated-tax page explains. A simple rule of thumb is to set aside a fixed slice of every month's profit in a separate account so the quarterly bill is already funded.
Sales tax is a separate obligation
Sales tax has nothing to do with your income tax. It is a state-and-local tax you collect from buyers and forward to the state — money that is never yours. Shopify helps with exactly one part of it.
You owe it wherever you have nexus. That is either physical (your home state, inventory in a warehouse, an employee) or economic — created by sales volume alone. The most common economic-nexus trigger is $100,000 in sales or 200 transactions into a state in a year, but thresholds vary widely: Texas uses $500,000 with no transaction count, and Illinois dropped its 200-transaction test effective January 1, 2026, per Shopify's US sales tax guide. Always check the specific state's Department of Revenue.
Here is what Shopify does and does not do. It calculates and collects the right rate at checkout once you turn it on and tell it where you have nexus. It does not register you with the state, file your returns, or remit the tax — those stay 100% your job on a normal storefront, where you are the seller of record. Marketplace facilitator laws that make Amazon or Etsy handle tax do not cover your own Shopify store; the one exception is orders placed through the Shop app, which Shopify treats as a marketplace.
Resale certificates: stop paying tax twice
If you sell print-on-demand, this is where money leaks quietly. When Printify or Printful produces your product, you are buying goods to resell — which should be exempt from sales tax if you hand the supplier a valid resale certificate. Without one, the supplier charges you sales tax on every order, and since you also collect tax from your customer, you pay on the same item twice.
Set it up before you order, because there are no retroactive refunds. Printful reviews a submitted certificate within about two business days, per its resale certificate help article, and Printify processes one in roughly three to five business days, per its resale certificate guide. You generally need a registered sales tax permit first, since the permit number goes on the certificate.
Where a profit tool fits in
Every number above depends on knowing your true per-order profit — and that is the one figure a Shopify export, a payout report, and a 1099-K all fail to give you. PodVector connects your Shopify, Meta Ads, Google Ads, Printify, and Printful data and computes real per-order profit after product cost, fees, and ad spend, so the revenue and margin lines on your return start from something accurate rather than a bank deposit.
It also gives you Victor, an AI employee that analyzes that live data and can act on the Shopify side with your approval — Victor reads your ad performance and proposes moves, but does not touch your ad account. If you want your income reporting built on real profit instead of guesswork, start with PodVector.
For the full picture of how these lines connect, our ecommerce P&L guide and the deeper dive on net profit margin for a Shopify store tie revenue, costs, and tax together.
This is general information, not tax advice. Rules change and vary by situation — consult a licensed CPA or tax professional before acting.
FAQs
Do I have to report ecommerce income if I did not get a 1099-K?
Yes. The 1099-K threshold governs reporting by the processor, not whether your income is taxable. You owe income tax and self-employment tax on your net profit regardless of whether any form is issued, so keep your own books either way.
Is the number on my 1099-K what I pay tax on?
No. A 1099-K shows gross payment volume before fees, refunds, and cost of goods, per the IRS threshold FAQ. Your taxable income is your net profit, which is much lower — reconciling the two is exactly why clean books matter.
How much should I set aside for taxes?
It varies by your total income and state, but remember you owe both ordinary income tax and self-employment tax of 15.3% on net earnings, per the IRS estimated-tax guidance. Many sole-proprietor sellers park a fixed percentage of each month's profit in a separate account so the quarterly bill is already funded.
When are estimated taxes due in 2026?
April 15, June 16, September 15, 2026, and January 15, 2027, per Kiplinger's schedule. Q2 shifts because June 15 falls on a weekend that year.
Does Shopify handle my sales tax for me?
Only partly. On a normal storefront Shopify calculates and collects the tax once you configure it, but you still register, file, and remit yourself, per Shopify's sales tax guide. Only orders through the Shop app are fully handled as a marketplace.
Do print-on-demand sellers need a resale certificate?
If you want to avoid paying sales tax to your supplier and then collecting it again from your customer, yes. Submit a valid certificate to Printful or Printify before you order — there are no refunds on tax charged before approval, per Printful's help article.