5 Things Amazon Sellers Get Wrong About Their Own Profitability
Sam's List Editorial | 2026-06-23
5 Things Amazon Sellers Get Wrong About Their Own Profitability Most Amazon sellers can tell you their revenue to the dollar. Ask them their actual net profit on a specific SKU and you get a pause, a shrug, or a number they pulled from a Seller Central dashboard that was never built to answer that question. That gap is where the money hides. The most expensive Amazon seller profitability mistakes don't come from bad products or weak ads. They come from accounting that quietly lies to you — booking the wrong numbers in the wrong months and calling it a P&L. Here are the five that do the most damage, and what the number is supposed to look like once it's right. 1. The Amazon seller profitability mistake hiding in your settlement deposit Every two weeks Amazon drops money in your bank account. It feels like revenue. It gets booked as revenue. That's mistake number one, and it poisons everything downstream. A settlement deposit is not sales. It's sales, minus referral fees, minus FBA fulfillment fees, minus advertising, minus refunds, plus reimbursements, minus a dozen smaller line items — all netted into one number. Book that deposit as "revenue" and you've just told your books that a $100,000 sales period was a $61,000 sales period, and you've buried roughly $39,000 of fees you can no longer see. Under ASC 606, revenue is recognized when you transfer the product to the customer — at the gross sale price. The fees Amazon takes are expenses, recorded separately. Amazon settlement accounting done right means decomposing each settlement report into its parts: gross sales here, referral fees there, ad spend in its own line, refunds against revenue, reimbursements as their own category. The short answer: the deposit is the leftover, not the vetted line. If your vetted line is the leftover, your gross margin is fiction. 2. Expensing inventory when you buy it instead of when you sell it This is the one that makes a great quarter look like a disaster — and a disaster look great. Say you spend $80,000 on a big inventory buy in March to prep for Q2. If you expense that $80,000 in March, March looks like a bloodbath. Then April and May, when you actually sell the goods, look wildly profitable because the cost of those sales has vanished. Your P&L is now a funhouse mirror. Inventory is an asset on the balance sheet until it sells. The cost moves to cost of goods sold in the month the unit ships to a customer — that's the matching principle, and it's the entire point of ecommerce inventory accounting . IRC §471 governs how inventory is accounted for; under §471(c),...
