Do You Pay Tax on Online Marketplace Sales? (2026)
By the Profitvana Editorial Team · Updated May 2026
If you sell online, a common worry is whether you owe tax on it. The short answer: it depends on whether you are selling as a hobby or a business, and how much you make. Here is a clear 2026 overview.
Hobby vs business
Occasionally selling personal items you already owned — usually for less than you paid — is generally not taxable income. But if you buy or make things to resell for profit, that is a business, and the profit is taxable.
The line is intent and consistency: regular sales with the aim of profit look like a business to tax authorities, even if it is a side hustle.
The 1099-K threshold (US)
In the US, marketplaces and payment apps report your sales to the IRS on Form 1099-K once you pass the threshold for the year. Receiving a 1099-K does not automatically mean you owe tax — it reports gross sales, not profit — but it does mean the income is on record and should be reported.
Thresholds have changed in recent years, so check the current figure for the tax year. Rules outside the US differ by country.
Track profit, not just sales
Tax is generally owed on profit, not gross sales. Keep records of what you sold, the fees you paid, your cost of goods, shipping, and supplies. Our fee calculators help you capture the platform's cut on each sale.
What you can usually deduct
Legitimate business expenses typically reduce taxable profit: marketplace and payment fees, cost of inventory, shipping and packaging, and supplies. Good records turn a scary 1099-K into a simple profit calculation.
This is general information, not tax advice — rules vary by country and situation, so confirm with a qualified tax professional.
Related calculators
Profitvana Editorial Team
We research marketplace, payment, and finance fees directly against each platform’s official, published rates, and stamp every calculator with the date it was last verified. We publish exactly how we work — and never let ads change a result.