Once a shop crosses a reporting threshold, Depop's payment processor issues a 1099-K — and a lot of sellers open it expecting a bill for the full amount listed, which isn't actually how it works.
What a 1099-K actually reports
A 1099-K reports gross payment volume — the total dollar amount of sales processed through Depop Payments in a calendar year, before any fees, refunds, or your own sourcing costs are subtracted. It's not a statement of profit and it's not what you owe tax on; it's a raw transaction total the IRS also receives a copy of, which is exactly why ignoring it isn't an option once you get one.
Why gross revenue isn't your tax liability
Your actual taxable income is gross revenue minus legitimate business expenses — Depop's selling fees, payment processing costs, shipping you paid out of pocket, and critically, what you paid to source each item in the first place. A seller with $15,000 in gross 1099-K sales and $9,000 in real sourcing and fee costs owes tax on roughly $6,000 of profit, not $15,000 — but only if those costs are actually documented.
The record-keeping gap that costs sellers money
This is where most resellers lose deductions they're legally entitled to: sourcing receipts from thrift trips, storage units, or wholesale lots get lost, forgotten, or never logged in the first place. Without that paper trail, a seller either pays tax on money they never actually kept, or claims deductions they can't back up if asked. Neither outcome is good — and both trace back to the same root cause: expense tracking that happens after the fact instead of at the moment of purchase.
Building the record as you go
The fix is logging sourcing cost the moment an item is bought or listed, not reconstructing it from memory in April. DepopAutomation.com's profit tracker ties a cost basis to every listing up front, then automatically matches it against the sale price, Depop's fees, and shipping the moment an item sells — building a running, categorized record that maps to what a 1099-K reports and what your actual deductible expenses were, side by side. Combined with the AI listing tool and bulk lister, the cost basis gets logged as part of the normal listing flow instead of a separate chore.
What a tracking tool doesn't replace
Automated tracking gets the math and the record straight — it doesn't replace keeping physical or digital copies of sourcing receipts, logging standalone overhead like mailers or a storage unit, or getting an actual CPA to confirm your filing. Treat it as the foundation the rest of tax prep sits on, not the whole job.
Conclusion
A Depop 1099-K reports gross sales, not profit — and the gap between the two is exactly the sourcing costs and fees sellers forget to track in the moment. Log cost basis as you list, not at tax time, and the form stops being a surprise.