Reconciling an Amazon 1099-K to Your Books

Every Amazon seller I have onboarded arrives with the same three numbers and no idea why they disagree: a 1099-K, a bank statement, and a books balance. Usually the assumption is that someone made a mistake.

Nobody did. The three numbers are measuring different things, and the reconciliation between them is a normal, and required, piece of ecommerce bookkeeping.

#Why the deposit is never the revenue

When a customer buys from you, Amazon collects the full amount. Somewhere between that sale and the money landing in your account, Amazon subtracts what it is owed: referral fees, fulfillment fees, storage, advertising, refunds it processed on your behalf, and whatever it decides to hold in reserve.

What arrives is the remainder.

If you book the deposit as revenue, you have made two errors that cancel out on the profit line and destroy everything else:

• Revenue is understated by the total of every fee Amazon withheld.
• Expenses are understated by exactly the same total, because those fees never appear anywhere.

Your profit may look approximately correct, which is what makes this so durable a mistake. But your revenue is wrong on the tax return, your fee deductions are missing entirely, and your gross margin is meaningless. If you are ever asked to reconcile reported revenue to a 1099-K, you have nothing to show.

#The bridge, in order

Work from the settlement report, which is the document that itemizes a payout period. Every payout has one, and it is the only source that shows what was subtracted.

1. Gross product sales. The full amount buyers paid for your goods, before anything.
2. Less refunds and returns. Book these as contra-revenue, not as an expense. Refunds reduce sales; they are not a cost of doing business, and treating them as an expense inflates both revenue and costs.
3. Less selling fees. Referral fees, closing fees, and per-item fees. These are expenses in their own right.
4. Less fulfillment and storage. Pick and pack, weight handling, monthly and long-term storage, removals.
5. Less advertising. Sponsored placements are commonly netted out of the settlement rather than billed separately. If you are only looking at the bank, you will never see this spend at all, which is how sellers end up with no ad-cost line.
6. Plus or minus the reserve. Amazon can hold funds and release them later. A reserve moves cash between periods without changing what you earned, so it belongs on the balance sheet, not the income statement.
7. Equals net deposit, which is the number your bank shows.

Do that per settlement period and the three numbers stop fighting.

#Sales tax, which is its own trap

Under marketplace facilitator rules, Amazon generally collects and remits sales tax on your marketplace sales. That money passes through your reports, and it is not yours at any point.

Booking marketplace-collected tax as revenue overstates income, and booking the remittance as an expense overstates costs. It also makes your books disagree with the sales tax returns you may still be filing for your non-marketplace channels.

Keep it out of income entirely. Where a facilitator collects and remits, the amounts belong in a liability or pass-through account, and the reconciliation should show them separately. If you sell on your own site as well as Amazon, the two channels have different treatment and both have to be right. Our nexus guide covers which channel creates which obligation.

#The calendar boundary

A settlement period almost never aligns with the end of the year, and this is where December and January get muddled.

Two rules keep it straight:

• Split the period, not the deposit. A settlement covering December 28 to January 10 contains sales from two tax years. Allocate by transaction date, not by when the money landed.
• Match the basis you are actually on. On accrual, revenue belongs in the period of the sale. On cash, the question is when you had a right to the funds, and a reserve balance complicates that. Pick one, document it, and apply it the same way every year, because a method that changes between years is its own problem.

The 1099-K itself follows the payment date, so a December sale settled in January generally lands on the following year’s form. That timing difference is normal. It also has to be explainable, which means writing down the reconciling item rather than rediscovering it a year later.

#What good looks like

At the end of a clean month, an Amazon seller’s books should let you answer four questions without opening a spreadsheet:

• What did I actually sell, gross, before Amazon took anything?
• What did Amazon charge me, broken into referral, fulfillment, storage and advertising?
• How much was refunded?
• What is sitting in reserve right now?

If your books can only answer “what hit the bank,” you cannot price a product, evaluate an ad spend, or defend a revenue figure. Those four numbers are the entire point of doing this properly.

#Doing it without drowning

The volume is what makes people give up. Some practical limits that keep it manageable:

• Summarize by settlement, not by order. You do not need every order as a journal entry. One entry per settlement period, with the categories above, is sufficient and auditable.
• Keep the settlement reports. They are your support. Download them; do not rely on indefinite availability inside a seller account you might one day lose access to.
• Reconcile the deposit to the settlement every period. If the net does not tie to the bank, something in the bridge is wrong, and finding it now is far cheaper than finding it in March. That is the same discipline as any other bank reconciliation, applied to a harder feed.
• Watch for a second payment channel. Sellers who also take payments outside the marketplace get a separate 1099-K from that processor, and the two are easy to double-count.

Bring a full year of settlement reports and the 1099-K. The reconciliation is mechanical once the categories are set up correctly, and the setup is the part worth doing carefully, because you only have to do it once.