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HBTax: eBay Reseller P&L Calculator

Enter gross eBay sales, cost of goods sold, platform fees, and other expenses. See taxable profit, SE tax estimate, and the gap between your 1099-K and what you actually owe.

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HBTax: Built because Hayden spent 7 hours on this.

Your eBay 1099-K shows gross sales. Your actual taxable profit is much lower. This calculator shows the real number — COGS, fees, shipping, and all.

eBay sales (from 1099-K)

Deductible expenses

eBay final value fees
Auto-calculated eBay fees$2,012

Tax estimate

Filing status

You owe tax on $6,289, not $15,000

Your 1099-K shows $15,000 in gross sales, but after deducting COGS ($5,000), eBay fees ($2,012), shipping, packaging, and other expenses, your actual taxable profit is $6,289 — a difference of $8,712.

Taxable profit
$6,289
42.8% margin on sales
SE tax (15.3%)
$889
Social Security + Medicare
Total tax bill
$889
14.1% effective rate
Quarterly payment
$222
due 4× per year

Deduction breakdown

Cost of goods sold (COGS)
34%$5,000
eBay final value fees
14%$2,012
Shipping costs
5%$800
Packaging materials
1%$200
Mileage & other expenses
3%$400
Total deductions$8,412

Why reinvesting in inventory doesn't reduce your tax the way you think

Buying more inventory reduces your future taxable income — but only when you sell it. Under the cash method of accounting, COGS is deducted in the year items are sold, not when purchased. Items still in your garage are an asset, not a deduction yet.

1

What the 1099-K shows (gross sales)

Total platform payments received

$15,000

= $15,000

This is what eBay reports to the IRS. It is NOT your taxable income — it's revenue before any deductions.

IRC §6050W — third-party payment network reporting

2

Less: returns and refunds

gross sales − returns/refunds

$15,000 − $300

= $14,700

Refunds you issued reduce your actual revenue. eBay may or may not net these in the 1099-K — keep records of all refunds.

3

eBay final value fees

gross sales × 13.25% + $0.30 × transactions

$15,000 × 0.1325 + $0.30 × 80 transactions

= $2,012

eBay's standard final value fee for most categories. Managed Payments processes the transaction — the 13.25% rate covers most general merchandise.

eBay Selling Fees policy (2024)

4

Cost of goods sold (COGS)

Total cost paid to acquire inventory

$5,000

= $5,000

COGS is the most important deduction for resellers and the most commonly missed. Every item you bought to resell — thrift store, estate sale, wholesale — is deductible when sold.

IRC §1221 (inventory as ordinary income, not capital asset); Schedule C Part III

5

Total deductible expenses

COGS + eBay fees + shipping + packaging + other

$5,000 + $2,012 + $800 + $200 + $400

= $8,412

IRC §162 — ordinary and necessary business expenses

6

Actual taxable profit

net sales − total deductible expenses

$14,700 − $8,412

= $6,289

You owe tax on $6,289, NOT on the $15,000 the 1099-K shows. The difference is $8,712.

7

Self-employment tax (15.3% on 92.35% of profit)

profit × 0.9235 × 0.153

$6,289 × 0.9235 × 0.153

= $889

eBay reselling is self-employment income. You pay both the employee and employer halves of FICA.

IRC §1401; IRS Schedule SE

8

Taxable income (after SE deduction + standard deduction)

profit − SE deduction − standard deduction

$6,289 − $444 − $14,600

= $0

9

Total estimated tax (federal income + SE)

federal income tax + SE tax

$0 + $889

= $889

10

Quarterly estimated payment

total tax ÷ 4

$889 ÷ 4

= $222

Due April 15, June 15, September 15, January 15.

IRS Form 1040-ES

Key insight

The most common reseller tax mistake: treating gross 1099-K sales as taxable income and panicking. The real number — profit after COGS, fees, shipping, and expenses — is almost always much lower. Track your COGS from day one and tax season takes 30 minutes instead of 7 hours.

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