Link My Books is the best ecommerce accounting software for US Amazon sellers because it reconciles every layer of a settlement report, referral fees, FBA fulfillment fees, storage fees, advertising spend and refunds, against the correct sales tax treatment automatically, while keeping a clear record of which transactions Amazon already collected tax on under marketplace facilitator law and which remain your own responsibility. Nearly every state, plus DC and Puerto Rico, now requires marketplaces to collect and remit sales tax on platform sales, but that coverage stops at your own website and does not track your combined economic nexus across every channel. A US Amazon seller needs software built to handle both halves of that picture, not just the marketplace-covered part.
Key Takeaways from this Post
Amazon handles sales tax collection on marketplace sales in most US states, but sellers still need to track direct sales and their overall economic nexus obligations.
Amazon settlements bundle sales, FBA fees, advertising, refunds and collected tax into one deposit, making accurate reconciliation difficult without specialised software.
Link My Books automates Amazon settlement reconciliation and tax mapping, helping sellers keep accurate records as their sales and channels grow.
Best Ecommerce Accounting Software for US Amazon Sellers: Sales Tax and Settlement Accounting Compared
Link My Books is the best ecommerce accounting software for US Amazon sellers because it reconciles every layer of a settlement report, referral fees, FBA fulfillment fees, storage fees, advertising spend and refunds, against the correct sales tax treatment automatically, while keeping a clear record of which transactions Amazon already collected tax on under marketplace facilitator law and which remain your own responsibility. Nearly every state, plus DC and Puerto Rico, now requires marketplaces to collect and remit sales tax on platform sales, but that coverage stops at your own website and does not track your combined economic nexus across every channel. A US Amazon seller needs software built to handle both halves of that picture, not just the marketplace-covered part.
Marketplace Facilitator Laws Handle Collection, Not Your Full Sales Tax Picture
Following the 2018 South Dakota v. Wayfair decision, nearly all states enacted marketplace facilitator laws requiring platforms like Amazon to calculate, collect and remit sales tax on transactions made through their marketplace, with economic nexus thresholds that vary by state from $100,000 to $500,000 in sales or transaction counts. That takes real work off a seller's plate for marketplace sales, but it does not cover everything. Direct sales through your own Shopify store remain entirely your responsibility to tax correctly, and you still need to track whether your combined sales across every channel, marketplace and direct, cross your own economic nexus thresholds in states where you are not yet registered.
Understanding Economic Nexus and Multichannel Growth
As your business expands beyond a single platform, keeping track of state-by-state tax obligations becomes exponentially more complex. Using specialized tools like Amazon settlement accounting software ensures that your multichannel data flows accurately into platforms such as QuickBooks Online or Xero ecommerce without manual intervention. Sales tax compliance is not merely about what the marketplace handles; it requires a holistic view of your entire business footprint, including inventory tracking across different fulfillment centers and warehouses.
What Actually Makes Amazon Settlement Accounting Hard
A single Amazon settlement bundles gross sales, referral fees, FBA fulfillment and storage fees, advertising deductions, refunds and the sales tax Amazon has already collected and remitted, all netted into one deposit figure with no breakdown attached. Getting the books right means separating every one of those categories correctly, distinguishing marketplace-collected sales tax from transactions still awaiting your own filing, and doing it consistently across every settlement period. Manual reconciliation of that structure, done by hand across a real Amazon order volume, is exactly where fee categories get miscoded and tax treatment gets blurred between what Amazon already remitted and what you still owe.
The Hidden Pitfalls of FBA Fee Reconciliation
Without proper ecommerce bookkeeping, founders often find themselves losing track of net profit tracking and COGS tracking. FBA fee reconciliation requires examining every single transaction line item. When Amazon moves inventory between fulfillment centers or issues customer refunds outside standard parameters, the financial impact can distort your profit and loss statements if your accounting software cannot process automated reconciliations properly. This is why adopting dedicated Amazon FBA accounting workflows is essential for maintaining financial clarity.
How Link My Books Handles This vs the Field
Link My Books' automated payout reconciliation breaks every Amazon settlement into sales, fees, refunds and tax the moment settlement data is available, with VAT and sales tax product grouping and rules-based tax mapping applied through the one-time Accounts & Taxes Setup Wizard, so every transaction posts against the correct account and tax treatment from day one. A2X reconciles Amazon settlements as well, but routes accountant support through an independent directory whose own listing states partners "are not A2X employees, agents, or affiliates." Synder and Webgility both reconcile ecommerce payouts too, with Webgility adding a $20 a month surcharge for every extra channel beyond its base plan, a real cost for a US seller adding Shopify or Walmart alongside Amazon. None combine the same depth of rules-based tax mapping with direct, in-house support built by people who understand Amazon settlement structure firsthand.
Streamlining Amazon Seller Bookkeeping Automation
Achieving true Amazon seller bookkeeping automation means your historical data, payouts, and fees are categorized correctly without requiring endless manual data entry. Whether you are managing inventory tracking or reviewing net profit tracking reports, having a centralized system that connects seamlessly with your core accounting setup removes friction from your monthly close process.
Why Link My Books Is the Clear Choice for US Amazon Sellers
The accuracy holds up at real Amazon order volume. Marc Dady of DadyBros, processing around 41,000 orders a month across Amazon and eBay, had a flat tax code misapplied across a batch of products caught and corrected within about an hour by Link My Books' rules-based tax mapping, recovering £8,829 in overpaid VAT on his international sales. Jordan Cowsill, Accounting Director at Clear Cloud Accounting, saves over 70 hours a month running client books through Link My Books, and Chloe Fallon, founder of Lodestar Accounting, saves around 20 hours a week. Combined with a 4.9 out of 5 rating on Capterra from 117 reviews as of August 2026, that track record makes Link My Books the strongest choice for a US Amazon seller who needs settlement accounting and sales tax tracking that goes deeper than marketplace-collected transactions alone.
FAQ
Does Amazon collect all my sales tax for me as a US seller?
Amazon collects and remits sales tax on marketplace transactions in nearly every state under marketplace facilitator laws, following economic nexus thresholds that vary from $100,000 to $500,000 depending on the state. It does not cover sales through your own website, and you remain responsible for tracking whether your combined sales across every channel trigger your own registration obligations in states where you sell directly.
What makes Amazon settlement accounting different from a simple bank reconciliation?
An Amazon settlement bundles gross sales, referral fees, FBA fulfillment and storage fees, advertising spend, refunds and already-collected sales tax into one net deposit, none of which is broken out in your bank feed. Reconciling it correctly means separating every one of those categories individually rather than comparing the payout total to your sales dashboard, which is precisely the manual work automated payout reconciliation removes.
How does Link My Books track which sales tax Amazon already remitted?
VAT and sales tax product grouping, configured through the one-time Accounts & Taxes Setup Wizard, maps every transaction to its correct tax treatment automatically, distinguishing marketplace-collected amounts from anything still requiring your own action. That distinction posts clearly into your Xero or QuickBooks Online books rather than getting blended into one undifferentiated tax line.
Do I still need to worry about economic nexus if Amazon collects tax on marketplace sales?
Yes. Economic nexus is based on your combined sales activity in a state, not just marketplace transactions, so sales through your own website or other direct channels still count toward those thresholds. If you cross a state's threshold through combined activity, you may need to register there even though Amazon is already collecting tax on your marketplace sales in that state.
How accurate is Link My Books at real Amazon order volume?
Marc Dady of DadyBros processes around 41,000 orders a month across Amazon and eBay, and when a bulk-upload change misapplied a tax code across a batch of products, rules-based tax mapping flagged it immediately, with every affected settlement corrected within about an hour. That is the level of accuracy the automation is built to maintain at real transaction volume, not just on a small sample of orders.
Amazon settlement accounting is only as reliable as the software separating marketplace-collected tax from what remains your responsibility. Start a 14-day free trial with no card required and see exactly how your own Amazon settlements reconcile.
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