Your answers suggest the IRS could classify your activity as a hobby — occasional sales, low volume, no clear profit motive. That might feel safer, but it's actually the more expensive tax path for most resellers. And one 1099-K can flip the whole thing.
Hobby income is fully taxable on Schedule 1 Line 8j, but since 2018 you cannot deduct any expenses against it. You pay tax on the gross, not the profit — which usually costs more than filing as a business.
A hobby, in IRS terms, is any income-producing activity you do without a primary profit motive. You sell stuff on the side, it's not your job, you don't run it like a business. That's a hobby. The rules come from Treas. Reg. § 1.183-2(b) — the same section that defines business activity.
Hobby income is still taxable. You report it on Schedule 1 Line 8j ("Activity not engaged in for profit") of your Form 1040. What changed — and what catches most casual resellers off-guard — is what you can do about the expenses.
Before 2018, you could deduct hobby expenses as a miscellaneous itemized deduction on Schedule A, up to the amount of hobby income. The Tax Cuts and Jobs Act (TCJA) of 2017 eliminated miscellaneous itemized deductions entirely through at least 2025.
The result: you pay tax on your gross hobby income, with zero deductions for what it cost you. No COGS. No shipping. No platform fees. The $40 you paid for that jacket you flipped for $80? Irrelevant. You owe tax on the full $80.
You sold $5,000 on eBay this year. You paid $3,000 sourcing the items, plus $400 in eBay fees and $200 in shipping. Real profit: $1,400.
As a hobby: you pay tax on the full $5,000. At a 15% effective rate, that's ~$750.
As a business: you pay tax on the $1,400 profit — roughly $210 income tax plus ~$200 self-employment tax. About $410 total.
Same activity. Same sales. Hobby treatment costs you ~$340 more. Numbers are illustrative; your bracket and state will shift the specifics.
Here's the part most casual sellers don't see coming. Every online platform has to send you (and the IRS) a Form 1099-K when your gross payments cross a reporting threshold. Once that form shows up with your name on it, you can't just pretend the income doesn't exist.
A 1099-K in your mailbox often triggers IRS reclassification questions. If a platform is reporting you as a seller doing consistent volume, and you're declaring it as a "hobby" with zero deductions, the IRS sometimes looks at that and thinks: this person is running a business and doesn't realize it — or worse, is avoiding self-employment tax. Either way, it invites a letter.
You might be thinking: "If I can't deduct expenses as a hobby, why bother tracking?" Three reasons.
FlipBooks isn't only for business filers. For hobby-level resellers, it's the cheapest insurance policy against a surprise 1099-K or a classification change.
Try FlipBooks free for 7 days. Import your sales, reconcile the numbers, and know exactly where you stand before the IRS does.
Start a 7-day free trial →Not sure the result fits you?
Retake the quiz →Generally yes. The $400 threshold most people remember is specifically for self-employment tax on business activity — under $400 in net business profit, you don't owe SE tax (but you still report the income).
For hobby income, the IRS expects you to report it on Schedule 1 regardless of amount. The practical trigger is a 1099-K or obvious IRS visibility, but the legal rule is: all income is reportable unless specifically excluded.
The Tax Cuts and Jobs Act (TCJA), signed in December 2017 and effective for 2018, eliminated miscellaneous itemized deductions subject to the 2% floor through at least tax year 2025. Hobby expenses had been deductible there, up to the amount of hobby income.
After TCJA, hobby income is fully taxable but hobby expenses are non-deductible. That's the single biggest reason casual resellers end up paying more than they expected.
There's no bright-line test. The IRS uses the 9 factors in Treas. Reg. § 1.183-2(b):
No single factor decides it. It's a totality test.
Report it. You have two main paths: (1) report the gross as hobby income on Schedule 1 Line 8j and pay tax on the full amount, or (2) argue that your activity is really a business and file Schedule C, which lets you deduct expenses.
If the 1099-K includes items sold at a loss — e.g., personal items like old clothes sold for less than you paid — there's a specific IRS procedure to back those out (Schedule 1 Line 8z with an offsetting adjustment on Line 24z). When in doubt, a CPA call is cheaper than a mistake.
If you have real expenses and you're reselling with a genuine profit motive, yes — almost always. Business treatment lets you deduct COGS, shipping, fees, mileage, supplies, and software. That routinely saves hundreds or thousands versus hobby filing.
The catch: you have to actually be running it like a business. That means tracking, consistent effort, and a real attempt at profit. The result screen on this quiz is a starting point — if you think you might be closer to business than hobby, read the grey-zone guide for the decision framework.