This is incorrect. It’s not total sales that you’re responsible for. You’d have to make a net gain in the year over $600 to be liable for tax.
This article sums it up pretty well. There is a lot of misinformation on this site about the guidance.
From the article:
“Form 1099-K is an IRS informational tax form that is used to report goods and services payments received by a business or individual in the calendar year. While banks and payment service providers, like PayPal and Venmo are required by the IRS to send customers a Form-1099K if they meet the $600 threshold amount, there are certain amounts that may be included on the form that are generally excluded from gross income and therefore are not subject to income tax. This includes:
- Amounts from selling personal items at a loss
- Amounts sent as reimbursement
- Amounts sent as a gift
So, for example, if you purchased a couch for $1200 and sold it for $800, this amount would not be subject to income tax.”