Amazon Seller Accounting & Bookkeeping Guide 2026 | Omniga

Part of our bookkeeping services guide.

Amazon Seller Accounting & Bookkeeping — Learn Amazon seller bookkeeping for US FBA businesses. Reconcile settlements, track Amazon fees, inventory, COGS, sales tax, 1099-K reporting, and month-end closes with confidence.

Introduction

Most Amazon sellers know their best-selling ASIN by heart. Ask them their net profit margin last quarter, after fees, refunds, advertising, and inventory, and you often get a blank stare. That is the hidden problem with selling on Amazon: the storefront is easy, and the accounting underneath is genuinely hard. Amazon FBA bookkeeping is where most of that difficulty lives, and where most of the money quietly leaks out.

Every couple of weeks, Amazon deposits a single lump sum into your bank. That number is your gross sales minus a stack of fees, refunds, advertising, and a held-back reserve, all bundled together. Record it as revenue and your books are wrong before you have started: sales understated, a dozen fee types gone, refunds untracked, and money Amazon is still holding erased from your balance sheet.

This is a practical, US-first guide to bookkeeping for Amazon FBA, written for the seller doing their own books or deciding whether to. This manual explores the mechanics of Amazon settlement accounting, from accurately booking FBA fee stacks and navigating Marketplace Facilitator legislation to calculating landed COGS, reconciling Seller Central exports, prepping for tax season, and selecting the right ledger-connector software stack for your business.

Key Takeaways

• Every Amazon deposit is a bundled settlement, not your revenue; you must break out gross sales, various fee stacks, refunds, and rolling reserves to keep your books honest.
• While Seller Central offers rich transaction data, it remains raw material and is not a double-entry ledger or true accounting platform.
• Stock stays on your balance sheet as an asset until the moment of sale, when its landed value finally moves to Cost of Goods Sold (COGS).
• Marketplace Facilitator laws handle the mechanics of sales tax collection, yet they do not erase your registration requirements, physical nexus, or quarterly income-tax liabilities.
• Disciplined monthly reconciliation is the only way to transform raw Amazon exports into reliable financial statements and accurate profit reporting.
• Scaling brands typically require a dedicated ledger like QuickBooks or Xero paired with a specialized settlement connector to automate the accounting stack.

What Amazon FBA Bookkeeping Is, and Why It Is Harder

Bookkeeping is the day-to-day recording of what happened in your business: every sale, fee, refund, and expense. Accounting is the layer on top, turning those records into financial statements, understanding them, and filing your taxes correctly. Clean bookkeeping comes first. Accounting built on bad data is just confident-looking fiction.

One thing to be clear on up front: Amazon Seller Central gives you rich data and reports, but it is not accounting software. It has no double-entry ledger, no bank reconciliation, and it will not file your taxes. Those reports are raw material. You still need a dedicated ledger, or an accountant, to turn them into books you can trust.

This is not a niche concern. Around 82% of active Amazon sellers use FBA as of 2025, so most sellers are working inside this complexity rather than avoiding it. Five specific things make Amazon FBA bookkeeping its own discipline:

1. Amazon pays you net, not gross. Every settlement is your sales minus fees, refunds, advertising, and a held-back reserve, all in one deposit. Recording that deposit as revenue is the single most common and most expensive mistake sellers make.
2. A maze of fees. Amazon layers on dozens of distinct fee types; for example, referral, FBA fulfillment, storage, advertising, and a long tail of surcharges, most of them buried in different reports. It is why sellers can quote revenue precisely but only guess at profit.
3. Inventory scattered across the country. With FBA, your stock sits across fulfillment centers nationwide, can be commingled with other sellers' units, and sometimes gets lost or damaged, all of which your books have to account for.
4. Amazon handles your sales tax, mostly. Under Marketplace Facilitator laws, Amazon automatically collects and remits sales tax for you in every US sales-tax state. That is a genuine relief, and a trap, because it does not erase your registration, nexus, or income-tax obligations.
5. High transaction volume. Hundreds or thousands of small orders a month make manual entry hopeless fast.

The Settlement Report: Why Your Deposit Is Not Your Sales

This is the spine of Amazon bookkeeping, so slow down here.

Amazon runs a settlement cycle, commonly about every two weeks, and disburses the net. A simplified two-week settlement might look like this, and here is exactly where each line belongs:

The double-entry logic: you recognize the full $10,000 as revenue, book each fee and the refund to its own account, move the $700 reserve to an asset account (it is your money on delay, not a cost), and the $4,920 lands in a clearing account that reconciles to the actual bank deposit. Every figure has a home. Nothing is buried.

The rule to remember your Amazon payout is not your revenue. It is your gross sales minus everything Amazon already took out.

Book the $4,920 as sales instead, and you would understate revenue by more than half, hide about $3,780 of deductible fees and ad spend, make refunds invisible, and pretend the reserve does not exist. Do that all year and your profit, your tax return, and your inventory decisions are all fiction.

One wrinkle unique to Amazon's cadence: settlements rarely line up with calendar months. A settlement running from the 26th to the 9th straddles a month-end. Under accrual accounting, you split it, recognizing each day's activity in the month it happened. Otherwise, one month shows six weeks of sales, and the next shows two, and your margins look all over the place. This is the most common accrual error Amazon sellers make.

Decoding Amazon's Fees

Amazon seller fees accounting is where most of your margin is won or lost. You do not need all of the fees memorized, but you do need to know the buckets and where each one lands.

The referral fee is Amazon's commission on every sale, most categories about 15% of the item price, with some (consumer electronics, computers) lower and a few higher, plus a per-item minimum. The FBA fulfillment fee is the per-unit pick-pack-ship charge, tiered by size and weight (small standard items start around $2.43 in 2026, scaling up for larger and heavier units). Storage fees are monthly per cubic foot, with steeper aged and long-term surcharges on stock that lingers. Then a long tail: inbound placement, low-inventory, removal and disposal, returns processing, and refund administration. Amazon also added a 3.5% fuel and logistics surcharge on all US FBA fulfillment fees effective April 17, 2026. On top of everything sits the Professional selling plan subscription, currently $39.99 per month.

A trap worth naming: many sellers assume everything netted out of a settlement is FBA fees. Often a large share is actually advertising. In one case documented by A2X, about 80% of what a client thought were FBA fees were Amazon marketing costs, which completely changed how they budgeted. So map each fee type to its own account (cost of sales for selling and fulfillment fees, operating expense for the subscription and ads), and never leave them lumped inside the deposit. Amazon's Revenue Calculator and fee reports are the source of truth for exact per-SKU numbers.

Reserves and Payable-to-Amazon Settlements

Reserves. Amazon holds back a portion of your sales, a rolling reserve to cover potential returns and chargebacks, and releases it later, often a month or two out. That held money is your asset, not a cost. A practitioner check: the balance in your reserve or pending account at month-end should equal the reserve from your last settlement of the month, and it should reverse out early the following month. If other balances linger there, you probably missed a settlement.

Negative settlements. Sometimes you owe Amazon more than you sold in a period (heavy fees or refunds, low sales), so there is no deposit. Amazon either charges your card or carries the balance to the next settlement. These payable-to-Amazon periods still have to be recorded, even though no money arrived, or your reserve and clearing accounts will not reconcile.

Which Seller Central Reports to Pull, and Where

Knowing how to reconcile Amazon settlement reports starts with pulling the right source files. Whether you automate or not, these are the documents that make Amazon settlement reconciliation possible, and worth keeping each month:

• Settlement Report (Flat File V2). Reports, then Payments, then Past Settlements, then Download Flat File V2. Lists every transaction inside each payout. This is your reconciliation backbone.
• Date-Range Transaction/Summary Report. Reports, then Payments, then Reports Repository, then Request Date Range Report. Lets you check totals for a full month or tax period.
• Inventory Ledger (FBA). Reports, then Fulfillment, then Inventory, then Inventory Ledger. Daily stock movements for COGS and inventory valuation.
• Advertising (PPC) invoices. Reports, then Advertising, then Billing and Payments. Ad spend that does not always appear cleanly in settlement files.

Download the CSVs, zip them by month, and keep them. They are your audit protection.

Inventory and COGS for FBA

The rule that trips up more sellers than any other: inventory you buy is an asset, not an expense.

Spend $30,000 on stock and it does not hit your P&L. It sits on the balance sheet as inventory. Only when a unit sells does its cost move to cost of goods sold (COGS). Expense the purchase up front and the month you bought shows a fake loss while the months you sell show fake sky-high margins. Your Amazon FBA profit and loss statement becomes meaningless, and so does every decision you base on it.

FBA makes this harder because inventory is scattered, commingled, and constantly moving. Two things keep it honest:

• Landed cost. True cost is the supplier price plus inbound freight, import duties and tariffs, and prep and labeling. In the current tariff climate, leaving duties out overstates margin and leads to underpricing.
• A consistent costing method. FIFO (most common) or weighted average, applied every period. Then reconcile your book inventory to Amazon's Inventory Ledger at least quarterly, creating adjusting entries for returns, shrinkage, and lost or damaged units.

Amazon Reimbursements

When Amazon loses or damages your FBA inventory in its own network, it reimburses you. That reimbursement is income. It is Amazon compensating you for your asset, not a refund of a purchase, and it must be recorded. Because these are easy to miss across hundreds of transactions, reimbursement-recovery tools exist to find owed amounts. Whether you use one or not, make sure reimbursements are captured rather than silently inflating a settlement.

Sales Tax: Marketplace Facilitator Changes Everything

Here is the biggest way Amazon differs from running your own store.

Under Marketplace Facilitator laws, Amazon is legally responsible for calculating, collecting, and remitting sales tax on your Amazon sales, and it does so in all 45 US sales-tax states plus Washington, D.C. For those orders, you never touch the tax. Amazon charges the customer and pays the state. That genuinely removed a huge burden.

The trap is assuming Amazon handles it ends your sales-tax life. It does not:

• FBA inventory can create nexus. When Amazon stores your stock in a state's fulfillment center, that can establish a taxable presence for you there, potentially income or franchise tax and, in some cases, registration obligations, in states you have never visited. Our overview of sales tax nexus for ecommerce sellers walks through where registration is usually required.
• You may still need to register and file zero returns. Even where Amazon remits, some states expect you to be registered and to file returns confirming the marketplace handled it. Skipping those can trigger penalties years later.
• Other channels are yours. Sell on your own website or a non-facilitator channel and you collect and remit those sales yourself. Economic nexus (commonly $100,000 in sales or 200 transactions, varying by state) governs those.

In your books: record Amazon-collected tax so it flows in and back out without inflating revenue. Treating collected tax as income is a classic error that can overstate revenue substantially. Because coverage and thresholds shift, this is the area most worth confirming with a current source or an accountant.

Income Taxes: Do Not Forget Quarterly Estimates

Marketplace Facilitator covers sales tax, not your income tax. As a US business owner, no one withholds income tax from your Amazon profit, so you are generally expected to pay quarterly estimated taxes to the IRS (and often your state) across the year, based on your expected profit. Miss them and you can owe underpayment penalties on top of the tax. This is exactly why accurate, current books matter: you cannot estimate quarterly tax on profit you have not measured. Set aside a percentage of real, fee- and COGS-adjusted profit each month so the quarterly bill is not a shock.

The 1099-K and Year-End

Amazon issues a Form 1099-K reporting your gross payment transactions. After years of shifting rules, the federal threshold was restored to more than $20,000 in gross payments and more than 200 transactions for 2025 and beyond by the One Big Beautiful Bill Act of 2025. The widely publicized $600 threshold was rolled back. Some platforms still issue the form below that, and all income is reportable whether or not you receive one.

The key point: a 1099-K reports gross payments. It is not your taxable income, and it will not match your bank deposits, which are net of every fee. Your year-end job is to reconcile the 1099-K gross figure to the gross sales in your books, then let your recorded fees, COGS, and expenses bring it down to actual profit. Clean settlement bookkeeping all year is what makes that painless.

Cash vs. Accrual, and Your Chart of Accounts

When it comes to accrual vs cash accounting for Amazon sellers, the choice usually resolves fast once you carry inventory. Accrual accounting, recording revenue when the sale happens and expenses when incurred, is the standard for any inventory business. It is what matches COGS to sales and stops month-straddling settlements from distorting your months, and it is what lenders, investors, and buyers expect to see. Most sellers move to accrual well before the IRS would ever require it, and cash basis really only suits the very smallest operations. Our guide to cash vs. accrual accounting covers the switch in detail.

A starter chart of accounts for an Amazon seller: Amazon revenue (split by marketplace or channel if relevant); contra-revenue for refunds; separate cost-of-sales accounts for referral fees, FBA fees, and storage; operating expenses for advertising, the subscription, and software; a settlement clearing account (asset); a reserve or carried-forward account (asset); inventory (asset); COGS (expense); sales-tax or VAT liability; and Amazon lending (liability) if you use Amazon loans. Splitting fees into their own accounts is what later lets you see exactly where your margin goes.

Choosing Accounting Software

Two layers: a general ledger (your books) and a settlement connector (to get Amazon data in cleanly).

The ledger is almost always QuickBooks Online or Xero, and neither can read an Amazon settlement on its own. The connector is the piece that matters for Amazon. It breaks each settlement into clean, categorized journal entries that reconcile to the deposit. A2X is the tool most professional Amazon bookkeepers use. Link My Books and Taxomate are alternatives, and Sellerboard is popular for per-SKU profit analytics. Finaloop bundles the software and the bookkeeper into one done-for-you service. If you are still weighing platforms, our roundup of small business bookkeeping software compares the main options, and our guide to QuickBooks reconciliation covers bank and credit-card matching. See also Omniga's Amazon and marketplace bookkeeping, built for Shopify and marketplace sellers. Match the tool to the job: with Amazon, settlement reconciliation is the whole game, so a settlement-level connector is not optional past a trickle of orders.

Selling Internationally

Expand to Amazon UK or Europe and VAT enters your books, a value-added tax with its own registration thresholds and filing rules, not sales tax with a different name. With Pan-European FBA, Amazon stores your stock across countries, which can trigger VAT registration in each. A few nuances catch sellers out: many countries have no VAT-registration threshold for foreign-based sellers (you register before your first sale), Amazon collects and remits VAT on some EU sales under marketplace rules (so you do not remit twice), and B2B sales are often treated differently. If a meaningful share of your sales is international, this deserves a conversation with an accountant who knows the destination markets.

Your Ongoing Routine and Month-End Checklist

Per settlement (about every two weeks): import and reconcile it, with gross sales, each fee type, refunds, and the reserve all tying to the deposit.

Weekly: categorize other transactions, review ad spend, flag anything odd.

Monthly (the close): run the checklist below.

Quarterly and annually: inventory reconciliation, review nexus and state filings, pay quarterly estimated taxes, reconcile the 1099-K at year-end, prep income taxes.

The month-end close checklist:

• All settlements imported and reconciled to bank deposits
• Gross sales, every fee type, and refunds recorded separately, not netted
• Reserve or carried-forward balance booked as an asset and checked against the last settlement of the month
• Any negative or payable-to-Amazon settlements recorded
• COGS posted for units sold, not inventory bought
• Inventory reconciled to the Amazon Inventory Ledger (adjust for returns, shrinkage, damage)
• Reimbursements recorded as income
• Marketplace-facilitator tax handled so it does not inflate revenue
• Advertising and subscription in the right period
• Month-straddling settlement split for accrual
• Bank and credit card accounts reconciled
• P&L and balance sheet reviewed, variance vs. last month sanity-checked

Signs Your Books Are Already Wrong

Self-diagnose. Any of these usually means something above is not being done:

• Your deposits are far smaller than your Amazon sales and nobody is reconciling the gap.
• Your P&L swings with when you bought stock, not when you sold it.
• You can quote revenue exactly but only guess at profit.
• Fees and advertising do not appear as expense lines.
• Money Amazon holds in reserve appears nowhere.
• Your 1099-K gross number looks nothing like your recorded revenue and you cannot explain the gap.
• Your monthly margins swing wildly for no real reason (usually un-split settlements).

Clean Books Also Protect Your Exit

Many FBA sellers build to sell. When you do, a buyer wants several years of books, and if yours are based on net deposits with no fee or revenue breakdown, they cannot assess the business. At best, you will redo years of books to facilitate the sale. At worst, the deal falls through. Clean accrual books that show true revenue, fees, and margin are not just for tax season. They directly protect and raise your business's sale value.

DIY or Hire It Out?

Plenty of sellers start with their own books, and with a ledger plus a settlement connector that is reasonable early on. The tipping point to bring in help: multi-state nexus from FBA inventory, international VAT, quarterly-tax complexity, rising volume, or simply that reconciling settlements is eating hours you should spend sourcing and growing. If you are weighing the options, our comparison of outsourced vs. in-house bookkeeping lays out the trade-offs, and our bookkeeping services pricing guide shows typical monthly ranges. A bookkeeper keeps the day-to-day clean, an accountant or CPA handles tax strategy, and outsourced Amazon bookkeeping services do it done-for-you. Crucially, hire someone who knows ecommerce. The horror stories in this niche almost always involve a generalist accountant who booked net settlements as income and understated sales and tax, for a year or more. The cost of the right help is almost always less than untangling that.

Frequently Asked Questions

How do I do bookkeeping for Amazon FBA?

Use a general ledger (QuickBooks Online or Xero) plus a settlement connector like A2X. Record gross sales and each fee type separately, book the reserve as an asset, track COGS as units sell, reconcile every settlement to your bank, and close monthly.

Why doesn't my Amazon deposit match my sales?

Each settlement is net: gross sales minus referral and FBA fees, storage, refunds, advertising, and a held reserve, bundled into one deposit. Record the gross components separately and reconcile the net figure to your bank.

Does Amazon collect and remit sales tax for me?

Yes, in all 45 US sales-tax states plus D.C., under Marketplace Facilitator laws. But you may still have registration, filing, and nexus obligations, and FBA inventory in a state can create a taxable presence there.

Do I still owe income tax if Amazon handles sales tax?

Yes. Marketplace Facilitator covers sales tax only. You owe income tax on your profit and generally must pay quarterly estimated taxes, since nothing is withheld.

Does Amazon FBA create sales tax nexus?

It can. Storing inventory in a state's fulfillment center may establish physical nexus, potentially creating income or franchise tax and registration obligations even in states you have never visited.

What's the 1099-K threshold now?

Restored to more than $20,000 and more than 200 transactions for 2025 and beyond (the $600 threshold was repealed). The 1099-K reports gross payments, not your taxable income, and will not match your deposits.

How do I track COGS for FBA?

Record inventory as an asset at landed cost (product, freight, duties, prep). Move cost to COGS only when a unit sells, using FIFO or weighted average, and reconcile to Amazon's Inventory Ledger regularly.

Cash or accrual for an Amazon seller?

Accrual once you hold inventory. It matches COGS to sales and handles month-straddling settlements. Cash basis suits only the smallest sellers.

What accounting software works with Amazon?

QuickBooks Online or Xero as the ledger, plus a settlement connector (A2X, Link My Books, or Taxomate). Sellerboard is popular for profit analytics, and Finaloop is a done-for-you option.

How do I account for Amazon reimbursements?

Record them as income when Amazon compensates you for lost or damaged FBA inventory. Do not let them silently inflate a settlement.

Bringing It Together

The Amazon FBA accounting best practices in this guide come down to a handful of non-negotiables: treat each settlement as a bundle and record its gross parts separately, split settlements that straddle month-end, book the reserve as an asset, treat inventory as an asset and COGS as it sells, know that Marketplace Facilitator helps but does not erase your obligations, pay your quarterly income taxes, capture reimbursements, and reconcile your year-end 1099-K.

Get there, and your financials stop being a mystery and become a tool. You will know your true margin after all those fees, know which products actually make money, meet your tax obligations without surprises, and, when the time comes, hand a buyer books that hold up. Start with clean settlement reconciliation, add the rest as you grow, and bring in an ecommerce specialist the moment complexity outpaces your time.

Expert Summary

Amazon bookkeeping differs from traditional ecommerce accounting because every payout is a bundled settlement containing sales, refunds, multiple fee categories, advertising costs, reserves, and tax adjustments. Recording only the bank deposit understates revenue and hides business expenses. Proper settlement reconciliation provides accurate profit reporting, tax compliance, and reliable financial statements for Amazon FBA businesses.

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