2025/2026 threshold: $600. Estimate quarterly tax before April.
1099-K income is self-employment income taxed at 15.3% SE tax plus income tax. Enter your gross receipts and expenses to see your net tax liability.
FreeToolHub 1099-K Tax Calculator is a free browser-based tool that estimates tax on marketplace payments, no signup, no upload.
1099-K reporting threshold is $600 for 2026 tax year (American Rescue Plan). State income tax rates are simplified. This is for estimation only — consult a tax professional.
About this tool
Estimate 2026 1099-K taxes under the $600 threshold. Know what you owe before it’s due. Free.
What Is the 1099-K Tax Estimator?
The 1099-K Tax Estimator calculates your federal income tax, self-employment tax, and state tax on side hustle income reported on Form 1099-K. As of 2026, payment platforms (eBay, Poshmark, Mercari, PayPal, Venmo, etc.) must issue a 1099-K if you receive $600 or more in payments — a dramatic change from the previous $20,000 threshold. This tool factors in QBI deduction, business expenses, and quarterly estimated payments.
Who Should Use This Tool?
This calculator is for resellers (eBay, Poshmark, Mercari), dropshippers, online sellers, freelancers paid through Stripe or PayPal, gig workers (Uber, DoorDash), and anyone who receives a Form 1099-K. If you sell goods or services through a third-party payment network and hit $600 in gross payments in 2026, you will receive a 1099-K.
How Does This Tool Work?
Enter your total 1099-K income, cost of goods sold (what you paid for items sold), and other business expenses (fees, shipping, ads). The tool calculates your net business profit, applies the QBI deduction (up to 20%), and determines your federal and state tax obligation. It then shows quarterly Form 1040-ES payment amounts to avoid underpayment penalties.
How Much Tax Do You Owe on $5,000 of 1099-K Sales?
A reseller sells $5,000 of items on Poshmark and eBay. They originally paid $3,000 for the items and spent $500 on fees and shipping. Estimated tax calculation: • Net profit: $5,000 - $3,000 - $500 = $1,500 • QBI deduction (20% of profit): $300 • SE tax ($1,500 × 92.35% × 15.3%): $211 • Income tax (fed + state): ~$200 • Total tax: ~$411 • Quarterly payment: ~$103
Frequently asked
What is the 1099-K $600 threshold?
Starting in 2026, payment platforms (eBay, Poshmark, Mercari, PayPal, Stripe, Venmo, etc.) must issue Form 1099-K if you receive $600 or more in payments for goods and services in a year. The previous threshold was $20,000 and 200 transactions.
Do I owe tax on the entire 1099-K amount?
No. You only owe tax on net profit — your sale price minus what you paid for the item (cost of goods sold) minus allowable business expenses (platform fees, shipping, ads, home office). For example, if you sell $5,000 worth of goods, bought them for $3,000, and spent $500 on fees, you pay tax on $1,500 profit.
Is 1099-K income subject to self-employment tax?
Yes, if you are reselling as a business. SE tax is 15.3% on net profit from Schedule C. If you occasionally sell personal items at a loss, those sales are generally not taxable. The IRS looks at frequency, intention, and profit motive to determine business vs. hobby.
When are quarterly estimated tax payments due?
Quarterly tax payments are due: April 15, June 15, September 15, and January 15. If you expect to owe more than $1,000 in tax for the year, you must make estimated payments using Form 1040-ES to avoid penalties of approximately 8% annualized.
What expenses can I deduct as a reseller?
You can deduct cost of goods sold, platform fees (eBay 13.25%, Poshmark 20%, Mercari 10% + $0.30), shipping and packaging, payment processing fees (2.9% + $0.30), advertising, home office (if exclusively for business), and equipment (phone, computer, camera).
How do I calculate cost of goods sold?
Cost of goods sold (COGS) is the original purchase price of inventory you sold. For example, if you bought an item for $20 and sold it for $40, COGS is $20. Your profit is $20 (not $40) for tax purposes. Track COGS per item for accurate reporting.
What if I only sell personal items?
If you sell personal items at a loss and do not conduct regular sales with the intent to profit, the IRS considers this personal activity, not a business. These sales are generally not taxable. However, if you regularly buy and sell for profit, the IRS views it as a business.
What is the QBI deduction for a side hustle?
The Qualified Business Income deduction lets you deduct up to 20% of qualified business income from taxable income. For resellers, QBI is calculated on net profit after deducting COGS and business expenses. If you earn under the threshold ($191,950 single / $383,900 married in 2026), the full 20% applies.
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