Shopify Seller Taxes: The Complete US Guide

Written by CA Sumit ChandwaniChartered Accountant & Founder · Reviewed by Minal Bihani, EA

Running on Shopify means you are the merchant of record — the tax obligations are yours.

Sales tax: the part Shopify won't do for you

Shopify will calculate and collect sales tax at checkout once you configure it — but it does not register you, does not file returns, and does not remit the money. Marketplace facilitator laws that protect Amazon sellers generally don't apply to your own storefront.

• Track economic nexus by state (commonly $100K in sales or 200 transactions)
• Register where you've triggered it, then switch on collection for that state
• File and remit on each state's schedule — including zero returns where required

1099-K: what gets reported about you

Shopify Payments (and PayPal, Stripe) issue Form 1099-K reporting your gross processing volume to the IRS. Gross — before refunds, fees and shipping. If your books don't reconcile cleanly against it, you either overpay tax or invite questions.

Income tax

Structure decides the forms: sole proprietor → Schedule C; single-member LLC → same (or 5472/1120 if foreign-owned); S-corp → 1120-S plus payroll. Inventory accounting (COGS) is where e-commerce returns most often go wrong.

Deductions sellers miss

• Merchant processing fees and app subscriptions
• Shipping supplies and postage
• Ad spend, photography and content costs
• Home office and inventory storage

The bottom line

Shopify gives you the storefront and none of the compliance. Nexus tracking, registrations, reconciled books and the right income return — that's the stack. MOREOFTAX runs it end to end for e-commerce sellers.