Deductions for eBay sellers fall into a handful of predictable categories — the cost of the inventory you sell, the fees eBay charges you, shipping and supplies, a home office if you have one, equipment, vehicle use for sourcing, and a scatter of smaller operating costs — and you claim them on Schedule C as long as the IRS considers your selling a business rather than a hobby. Everything below assumes you clear that first hurdle, because it controls whether any of the rest is available to you.
The governing standard is simple: an expense is deductible if it’s ordinary (common in your kind of business) and necessary (helpful and appropriate for running it).1Internal Revenue Service. Ordinary and Necessary Every dollar you legitimately deduct lowers your Schedule C profit, which cuts both your income tax and your self-employment tax.
Are You a Business or a Hobby?
If the IRS classifies your eBay activity as a hobby, you still owe tax on the income but you can’t deduct losses against your other earnings.2Internal Revenue Service. Know the Difference Between a Hobby and a Business Full tax on revenue, no offset for what you spent. That’s why this question comes first.
The IRS weighs several factors. The ones that matter most for sellers: whether you keep accurate books and records, whether you change your methods to improve profitability, how much time and effort you put in, and whether you’ve turned a profit in at least three of the last five years.2Internal Revenue Service. Know the Difference Between a Hobby and a Business No single factor decides it, but casual sellers with no records and years of losses are the most exposed. If you plan to deduct, run the shop like a business from the start: track every purchase, log your mileage, use a separate bank account.
Cost of Goods Sold
For most sellers this is the single largest deduction. It doesn’t sit on the expense lines of Schedule C — it has its own section. You take beginning inventory, add purchases during the year (plus labor and materials if they apply), then subtract ending inventory.3Internal Revenue Service. Publication 334 – Tax Guide for Small Business The result is your cost of goods sold, subtracted from gross receipts to get gross profit.
If you buy specifically for resale — thrift stores, estate sales, wholesalers, online sourcing — record every purchase price. If you’re selling items you already owned, you can include what you originally paid, but only up to the sale price; you can’t manufacture a deductible loss out of personal property you moved into the business. Guesses at three-year-old prices won’t survive scrutiny. Keep receipts.
eBay and Payment Processing Fees
Final value fees, insertion fees, and eBay Store subscription fees are all fully deductible. Since eBay brought payment processing in-house in 2021, the processing fees appear on your eBay statements rather than a separate PayPal account, and they’re deductible as ordinary business expenses along with the rest.
eBay’s Seller Hub gives you monthly and annual fee summaries. Download them at tax time; the platform does the tracking work for you.
Shipping and Postage
Every dollar spent getting an item to a buyer is deductible: postage, carrier charges (USPS, UPS, FedEx), shipping insurance, delivery confirmation. Shipping software subscriptions like Pirate Ship or ShipStation count too.
If you drive to the post office or a carrier drop-off, that mileage is deductible. The IRS standard mileage rate for business use in 2026 is 72.5 cents per mile.4Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents per Mile You can use that rate or the actual expense method, but not both for the same vehicle in the same year.5Internal Revenue Service. Topic No. 510, Business Use of Car
Supplies and Packaging
Boxes, bubble wrap, poly mailers, packing tape, labels, and printer ink for shipping labels are all deductible. So are the small items that are easy to forget: a postal scale, a label printer, a measuring tape for dimensional weight, tissue paper for fragile pieces. If you buy in bulk at the start of the year, deduct supplies as you use them, or all at once when the amount isn’t large enough to bother inventorying.
Home Office
If you use a specific area of your home exclusively and regularly for your eBay business — a spare room turned into a packing station, a corner of the garage used for inventory — you can claim the home office deduction.6Internal Revenue Service. Topic No. 509, Business Use of Home “Exclusively” is the word that trips people up. If the space doubles as a guest room or the kids do homework at the same desk, it doesn’t qualify.
Two ways to calculate it:
- Simplified method. Deduct $5 per square foot of the dedicated business space, up to 300 square feet. The cap is $1,500.6Internal Revenue Service. Topic No. 509, Business Use of Home
- Regular method. Take the business-use percentage of your home’s square footage and apply it to actual housing costs: rent or mortgage interest, utilities, insurance, repairs, depreciation.7Internal Revenue Service. Publication 587 – Business Use of Your Home
The regular method is more bookkeeping but often produces a larger deduction, especially when a meaningful share of your home is devoted to the business. Inventory storage counts as business use even in a closet, as long as you use the space regularly and exclusively for that purpose.
Equipment and Technology
Cameras for product photos, computers, printers, barcode scanners, dedicated business phones, and lighting equipment are all deductible. Equipment that costs more than a few hundred dollars and lasts beyond one year is normally depreciated over several years, but two provisions let most sellers skip that.
Section 179 lets you deduct the full cost of qualifying business equipment in the year you buy it. The 2026 limit runs well over $2 million, which is far more than any eBay seller will ever spend on gear. Bonus depreciation offers a similar first-year write-off for qualifying property placed in service in 2026.8Internal Revenue Service. Depreciation and Recapture
Dual-use equipment gets prorated. A smartphone you use 60% for eBay? Deduct 60% of the cost and 60% of the monthly service bill.
Sourcing Travel and Vehicle Use
Driving to thrift stores, estate sales, flea markets, and storage units to find inventory is business use of your vehicle. Deduct it at the 2026 standard rate of 72.5 cents per mile or use the actual expense method, which covers gas, insurance, repairs, and depreciation apportioned by business-use percentage.4Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents per Mile Tolls and parking fees during business trips are deductible on top of either method.
Longer trips can qualify too. Trade shows, supplier visits, and buying trips to another city let you deduct airfare, lodging, and 50% of meals while you’re away overnight for business.9Internal Revenue Service. Topic No. 511, Business Travel Expenses The trip needs a real business purpose. A vacation with one stop at a yard sale doesn’t count. Keep a log of where you went, what you sourced, and how the trip ties to the business.
Other Deductible Expenses
Smaller categories that add up across a year:
- Education and training that improves skills you already use in the business — product photography, e-commerce strategy, inventory management. Degree programs that qualify you for an entirely new career don’t count.
- Advertising, including eBay promoted listings and any social media or paid marketing pushing buyers to your store.
- Business insurance premiums on policies covering your inventory or business liability.
- Professional fees paid to an accountant, bookkeeper, or lawyer for business work.
- Interest on business debt. Personal credit card interest never qualifies, even for business purchases, so keep business spending on a separate card.
- Software subscriptions for accounting, inventory, listing tools, and cloud storage used for business records.
Self-Employment Tax and the Half Deduction
This is the one that catches first-year sellers off guard. On top of income tax, your Schedule C profit is hit with self-employment tax for Social Security and Medicare. The combined rate is 15.3% on net earnings: 12.4% Social Security on the first $184,500 of earnings in 2026, and 2.9% Medicare with no cap.10Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)11Social Security Administration. Contribution and Benefit Base An employer would pay half; on your own, you pay both halves.
You do get to deduct the employer-equivalent portion — half of your self-employment tax — as an adjustment to adjusted gross income.10Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) It doesn’t reduce SE tax itself, but it does lower your income tax. And every Schedule C deduction pulls double duty here, because it reduces both the profit subject to income tax and the profit subject to SE tax.
Qualified Business Income Deduction
Sole proprietors selling on eBay may also qualify for the qualified business income deduction under Section 199A, worth up to 20% of net business income. This deduction was recently made permanent.3Internal Revenue Service. Publication 334 – Tax Guide for Small Business You claim it on your personal return, and you don’t have to itemize to get it.12Internal Revenue Service. Qualified Business Income Deduction
The deduction phases out at higher income levels, and some service businesses face extra limits. For a typical reselling operation with taxable income under roughly $200,000 single or $400,000 married filing jointly, the full 20% is generally available. On $50,000 of net eBay profit, that’s a $10,000 reduction in taxable income sitting on top of every Schedule C deduction you’ve already taken.
Records That Back the Deductions Up
The IRS requires records supporting income and deductions for at least three years after you file.13Internal Revenue Service. How Long Should I Keep Records Underreport income by more than 25% and the window stretches to six years. Six years is cheap insurance either way.
Save purchase receipts for inventory, shipping receipts, eBay fee statements, bank and credit card statements showing business transactions, a mileage log with dates and destinations, and photos or scans of sourcing receipts before the thermal paper fades. Scan the paper stuff and back it up. Sellers who lose audits usually didn’t claim the wrong thing — they claimed the right thing and couldn’t prove it.