Why Your 1099-K Doesn't Match Seller Central (And What to Tell Your CPA)

Every January, the same scene plays out across ecommerce Reddit:

"My 1099 from Amazon doesn't match the revenue on my 2020 sales report. I'm so confused my head hurts." — r/AmazonSeller

The sellers aren't doing anything wrong. The 1099-K and Seller Central reports are measuring different things, on different cutoffs, with different inclusions. They will almost never match. The job is to reconcile them and document the reconciliation.

This is the post your CPA wishes you'd read before tax season.

What the 1099-K actually reports

The 1099-K is filed by the payment processor — Amazon, Stripe, Shopify Payments, PayPal, Square, Etsy — to report the gross amount of payment transactions processed for you during the calendar year.

Critically:

• It's the gross amount before fees, refunds, or chargebacks
• It's based on payment date, not order date
• It includes sales tax collected (which you may not even owe — see below)
• It's reported on a calendar year basis regardless of your fiscal year

The 1099-K is what the IRS sees. Your tax return needs to either match it, or explain why it doesn't.

Why the numbers never match

Here are the 8 most common reasons your 1099-K won't match Seller Central / Shopify reports:

1. Cutoff timing

The 1099-K reports payments received by year-end. Your sales report might track by order date, ship date, or some other date. Orders placed in late December but paid in January will show in different years.

2. Sales tax inclusion

Your gross sales report likely shows the product price. The 1099-K shows everything that was charged — including sales tax. For an FBA seller in 25+ states, this difference can be 8-12% of revenue.

3. Refunds

Refunds reduce your net sales but the 1099-K reports gross. A $100 sale and a $100 refund will show as $100 of gross revenue on the 1099-K and $0 of net revenue in your books.

4. Marketplace facilitator sales tax

For Amazon FBA in marketplace facilitator states, Amazon collects and remits sales tax. That tax flows through your account, gets included in the 1099-K gross, but you never see the cash and don't owe the tax. You have to subtract it.

5. Chargebacks

Chargebacks are processed in a different month than the original sale. They appear as negative entries that may not align with your sales records.

6. FBA inventory reimbursements

Amazon reimburses you for lost or damaged FBA inventory. This income shows up on your 1099-K but isn't a "sale" in any normal sense.

7. Returns where the customer kept the product

For some products, Amazon refunds the customer but doesn't require return. The original sale is on the 1099-K, the refund is processed, but it may not show clearly as a return in your sales report.

8. Multi-channel sales mixed in one Amazon account

If you sell on both Amazon US and Amazon Canada through the same Seller Central account, the 1099-K is US-only but your Seller Central reports may aggregate.

The reconciliation framework

Here's the framework I use for ecommerce sellers. Build this once and you can run it in 30 minutes every January.

Start with: 1099-K reported amount

Then subtract / explain each of the following:

Document this reconciliation in writing. Keep it with your tax records. If you ever get audited, this single page is your defense.

What to tell your CPA

If your CPA is comparing your books to your 1099-K and asking why they don't match, hand them this:

"The 1099-K reports gross payment volume on a payment-date basis, including sales tax (both DTC and marketplace facilitator). My books report net sales on an accrual basis, excluding sales tax. The reconciliation between the two is attached. The difference of $X is composed of: $Y in sales tax (split between $A direct and $B marketplace facilitator), $Z in refunds, $W in chargebacks, and $V in cutoff timing."

Most ecommerce CPAs see this every season and will know exactly what to do with it. If your CPA seems lost, you might need an ecommerce-specialized one — the field is genuinely different.

The Etsy / PayPal special case

Etsy issues a 1099-K for sales processed through Etsy Payments. PayPal issues a 1099-K for everything else — including PayPal payments to your Etsy account that bypass Etsy Payments.

If you sold on Etsy + PayPal + Shopify in the same year:

• One 1099-K from Etsy
• One 1099-K from Shopify Payments (if you crossed the threshold)
• One 1099-K from PayPal (for non-Shopify, non-Etsy PayPal transactions)

There's overlap and the IRS expects you to know which is which. The reconciliation framework above is the only sane way to deal with this.

The new $600 threshold (and the back-and-forth)

The American Rescue Plan Act of 2021 lowered the 1099-K reporting threshold from $20,000 + 200 transactions down to $600. The IRS delayed implementation multiple times.

For tax year 2025: the threshold is $2,500. For tax year 2026 and later: the threshold drops to $600.

This means starting next year, every casual seller doing more than $600 a year through PayPal, Venmo, or Etsy will get a 1099-K. The reconciliation work doesn't get harder for serious sellers — but the volume of small sellers facing this for the first time will explode.

When the 1099-K is just wrong

Sometimes the 1099-K itself is incorrect. This happens.

"We are dealing with an almost $70,000 error and so far Etsy support has not indicated they even understand the problem. It's obviously important to get this corrected before this turns into an IRS problem also." — Etsy seller, r/ecommerce

If your 1099-K is materially wrong:

1. Contact the issuer (Amazon, Etsy, PayPal) and request a corrected 1099-K
2. Document everything — emails, support tickets, dates
3. If you can't get it corrected by tax filing date, file your return with the correct number and attach a written explanation
4. Keep the documentation in case you receive a notice

Filing a return that doesn't match the 1099-K without explanation is a flag that often triggers an automated CP2000 notice. With a clean reconciliation attached, you have a defensible position.

What good ecommerce bookkeeping looks like

If your bookkeeper isn't producing these monthly, you'll be scrambling every January:

1. Gross sales by channel (Amazon, Shopify DTC, Etsy, etc.)
2. Sales tax collected by source (you vs. marketplace facilitator)
3. Refunds processed by month
4. Chargebacks by month
5. Net revenue that ties to deposits and to revenue accounts in the GL
6. Quarterly reconciliation to platform reports

This is what I mean when I say ecommerce bookkeeping is genuinely different. A general bookkeeper who's never worked with marketplaces will get half of this wrong.

When to call Level

If you're a $1M+ DTC brand and your books don't reliably reconcile to your 1099-K, that's a signal that the bookkeeping setup needs an upgrade. Level routinely overhauls ecommerce bookkeeping as part of fractional CFO engagements — including the chart of accounts, the reconciliation cadence, and the integration between Shopify/Amazon/Etsy and QuickBooks/Xero.

FAQ

Should my 1099-K match my Schedule C revenue? No. Your Schedule C revenue should match your net sales (after refunds, after sales tax). Your 1099-K reports gross. The difference should be reconciled in writing and kept with your tax records.

Will the IRS audit me if my 1099-K doesn't match? Not automatically. The IRS computer compares 1099-K to reported revenue and flags large discrepancies for review. If yours is reconciled and your reasoning is documented, the response is usually a CP2000 letter that you can answer with the reconciliation. Audits are far less common than letters.

What if I sold on a marketplace that didn't issue a 1099-K? You're still required to report all income. The 1099-K is informational — your obligation is to report what you actually earned, regardless of whether anyone sent you a form.

My CPA wants me to use accrual but Amazon reports cash basis. Which is right? Both can be right. Most ecommerce sellers under $25M in revenue can use cash basis for tax purposes. Many use accrual for management reporting (it's more accurate for understanding margin) and cash for tax. The reconciliation between the two is bookkeeping work — and it's why ecommerce-specialized bookkeepers cost more than general ones.

Related reading:

• Sales Tax Nexus After Wayfair: 6 States That Hurt Most
• Marketplace Facilitator Sales Tax in QuickBooks
• Ecommerce Bookkeeping That Actually Works