Amazon FBA accountants for Seller Central sellers.

Amazon FBA accountants reconcile Seller Central settlements to the ledger, separate gross sales from the fees Amazon nets off before payout, value inventory sitting in fulfilment centres, and file sales tax in the states and countries where marketplace facilitator rules leave the seller liable. That work is monthly, because settlements land every 14 days.

Amazon bookkeeping done badly looks like deposits hitting the bank account and being booked as revenue. That misses everything that actually matters: refunds, chargebacks, FBA fees, advertising spend, storage fees, returns adjustments, marketplace facilitator sales tax, inventory reconciliation, multi-marketplace settlement timing. A Seller Central account doing $5M in revenue can easily have $4M in settlement adjustments hidden inside the deposits.

We treat Amazon as its own discipline. Settlement statements imported and reconciled at the line-item level. FBA fees, FBA storage, FBA inbound, FBA disposal split into separate cost accounts. Advertising spend tracked at the campaign level. Inventory reconciled to Amazon's reports and your inbound shipments. Multi-marketplace operations consolidated cleanly.

On top of platform-level work, Amazon sellers face complex sales-tax positions. Most US states now require marketplace facilitators to collect on behalf of sellers, but seller-specific obligations remain (income tax nexus, state-specific licensing, inventory-in-state economic nexus). We track all of this through Avalara or TaxJar integrated with Seller Central.

The first failure is almost always the same. The Amazon disbursement is treated as revenue. A 14-day settlement arrives net of referral fees, FBA fulfilment fees, storage, long-term storage surcharges, advertising, refunds and reserve movements, so booking the bank credit as sales understates turnover and hides every cost line. A seller doing 60,000 pounds a month gross can show 41,000 pounds of revenue and no cost of sales at all. Gross margin becomes meaningless, and so does any pricing decision made from it.

The second failure follows within a quarter: inventory. FBA stock sits in Amazon fulfilment centres, in transit between them, in a 3PL, and in removal orders, and none of that is visible from the bank feed. Without a SKU-level inventory ledger the cost of goods sold is whatever was purchased that month, which makes profit swing with purchasing rather than with trading. Reimbursements for lost and damaged units compound it, because Amazon credits them at its own valuation, not yours, and they arrive months after the loss.

Third comes tax. Marketplace facilitator rules mean Amazon collects and remits US sales tax in every state that has them, a patchwork the Streamlined Sales Tax Governing Board has only partly harmonised, but the seller still owns registration, nexus tracking and the returns in states where inventory creates physical presence. In the EU the same split applies through the Import One Stop Shop for consignments at or below 150 euros, with the seller responsible for the rest. UK sellers also have to watch the domestic registration point set out in HMRC's VAT registration guidance, which is measured on a rolling twelve months rather than on the accounting year. We work through this order deliberately: settlements first, then inventory, then registrations, because fixing tax on top of unreconciled settlements just moves the error downstream. Sellers running Shopify alongside Amazon should read our Shopify accounting page too, and the underlying ledger design is set out in our Shopify and Amazon chart of accounts guide. The monthly reconciliation and the sales tax filings themselves run through our e-commerce accounting service, and sellers with a US entity should read accounting for US small businesses for the federal and state calendar that sits behind it. Everything else we run for sellers is listed in our full list of accounting services.