How to Choose an Ecommerce Accountant: What to Look for and Ask
Most general accountants don’t understand ecommerce. They understand basic bookkeeping and tax filing — but the specific challenges of an online seller (multi-channel reconciliation, inventory costing, sales tax nexus in 50 states, Amazon FBA’s Byzantine fee structures) require specialization that most generalists don’t have. Here’s how to find an accountant who actually understands your business.
Why General Accountants Fail Ecommerce Sellers
The most common failure mode: a general bookkeeper categorizes all of your Amazon or Shopify payouts as “Revenue” — missing the fact that the payout includes sales minus fees, refunds, adjustments, and reserve holds. The result: your P&L shows the wrong revenue number, your COGS is miscalculated, your gross margin is wrong, and your sales tax liability may be understated.
Ecommerce accounting requires understanding:
- How to reconcile payment processor payouts to actual sales, refunds, and fees
- Landed cost calculation for inventory (purchase price + freight + duties)
- Inventory costing methods (FIFO, weighted average) and when each applies
- Amazon-specific accounting: FBA fee structures, inventory reimbursements, A-to-Z claims, long-term storage fees
- Sales tax nexus post-Wayfair: which states require collection, what triggers economic nexus, how to register and remit
- Multi-channel reconciliation when you sell on Amazon, Shopify, Walmart, eBay, and TikTok Shop simultaneously
The Tools an Ecommerce Accountant Should Know
A specialized ecommerce accountant doesn’t do everything manually. They use software that connects your sales channels to your accounting system:
A2X: The gold standard for Amazon and Shopify bookkeeping automation. A2X maps each settlement payout into the correct revenue, refund, fee, and adjustment categories and pushes summarized journal entries into QuickBooks or Xero. Any accountant serving Amazon sellers should know A2X.
TaxJar / Avalara: Sales tax automation tools that calculate sales tax rates by jurisdiction, manage multi-state nexus obligations, and file state sales tax returns automatically. TaxJar was acquired by Stripe in 2021 and has continued to develop; Avalara serves larger operations. If your accountant is calculating sales tax manually across multiple states, that’s a red flag.
Getida: Specializes in Amazon FBA reimbursement recovery — auditing your Amazon account for inventory loss, damage, and overcharge reimbursements that Amazon owes you but hasn’t paid. Getida works on contingency. An ecommerce accountant who knows Getida will make sure you’re not leaving Amazon reimbursement money on the table.
Inventory management: Linnworks, Skubana, Brightpearl (for larger operations) or SkuVault. Understanding how inventory management software syncs with accounting systems is essential for accurate COGS tracking.
Interview Questions to Ask
“How do you handle Amazon settlement reconciliation?” The correct answer involves using A2X or a similar tool to map each Amazon payout to its components — sales, refunds, fees, reimbursements. If they say “we download the Amazon reports and categorize them manually,” that’s a scalability problem.
“How do you handle sales tax nexus for our channels?” They should ask about your current state registrations, your annual revenue by state, and your current collection/remittance setup. They should know the Wayfair thresholds (generally $100,000 in sales or 200 transactions in a state) and which states you may be out of compliance in.
“How do you calculate landed cost for inventory?” The answer should cover: purchase price + freight + duties + other importing costs, allocated to the total units received. If they’re just using purchase price as inventory cost, your COGS and gross margin are understated.
“What accounting method do you recommend for an ecommerce business at our stage?” Accrual accounting (GAAP) is the right answer for most ecommerce sellers, particularly those with inventory — it matches cost of goods sold to the period the inventory was sold, not when it was purchased. Cash-basis accounting produces distorted financial statements for inventory-heavy businesses.
“Have you worked with businesses selling on [your specific channels]?” Multi-channel complexity compounds quickly. A firm that’s done Amazon + Shopify but never Walmart or TikTok Shop may need a learning curve period you shouldn’t pay for.
Red Flags in Ecommerce Accountants
They book entire Shopify/Amazon payouts as “Revenue.” This error is catastrophic for your financial statements. Gross revenue, net revenue, fees, and refunds are completely different numbers.
No sales tax automation tool. Managing multi-state sales tax manually at any meaningful scale is both error-prone and time-consuming. A firm that doesn’t use TaxJar, Avalara, or a similar tool is doing it wrong.
They don’t ask about inventory. If a prospective ecommerce accountant doesn’t ask about your inventory, your inventory method, and how you track COGS, they’re not thinking about your business correctly.
They can’t produce a gross margin analysis. The most fundamental ecommerce metric is gross margin by product or category. An accountant who can’t produce this from your books isn’t giving you the information you need to run your business.
What Specialized Ecommerce Accounting Costs
For ecommerce businesses, pricing for an integrated accounting firm (bookkeeping + controller + tax):
| Revenue | Typical Annual Cost |
|---|---|
| $500K–$2M | $15,000–$30,000/yr |
| $2M–$10M | $30,000–$60,000/yr |
| $10M+ | $60,000–$120,000+/yr |
These are ranges — complexity drives cost more than revenue. A $3M business selling on one channel is less expensive to serve than a $3M business selling on five channels across 25 states with active inventory purchasing.
Frequently Asked Questions
How do I know if an accountant actually specializes in ecommerce vs. just claiming they do?
Ask specific questions that a genuine specialist answers fluently without hedging: ‘How do you reconcile Amazon settlement payouts to gross sales and fees?’ (answer should reference A2X or similar tool, detail the components of a settlement payout). ‘How do you handle sales tax nexus for multi-channel sellers?’ (answer should reference economic nexus thresholds, marketplace facilitator laws, and tools like TaxJar). ‘What inventory costing method do you typically recommend for an ecommerce business at our stage?’ (answer should explain FIFO vs. weighted average with reasons relevant to your model). A generalist who’s done a few ecommerce clients will give vague answers or ask you to explain these concepts. A genuine specialist will answer immediately and specifically, then follow up with their own clarifying questions about your specific setup.
We sell on Amazon, Shopify, and Walmart. Do we need separate bookkeeping for each?
Not separate bookkeeping, but you need accurate per-channel reconciliation that rolls up into your unified books. Each channel should be reconciled separately — Amazon settlements to gross Amazon sales, Shopify payouts to gross Shopify sales, etc. — before the reconciled numbers flow into your accounting system. The reason: each channel has different fee structures, different refund handling, and different reporting formats. Blending the payouts together before reconciliation loses the channel-level detail you need for business decisions (which channel has the best margin? where are fees highest?). Tools like A2X handle Amazon and Shopify; Walmart Marketplace has its own data exports that can be similarly processed. Your accountant should produce a monthly P&L that breaks revenue (and ideally COGS and gross margin) by channel.
Amazon owed us reimbursements for lost FBA inventory. How should we account for these?
Amazon FBA inventory reimbursements are income when received — specifically, reimbursement income, which should be tracked separately from product sales revenue. The accounting: when Amazon reimburses you for a lost item, debit Cash (when you receive the payout) and credit Reimbursement Income (a separate revenue or other income line item). Simultaneously, if you previously wrote down the lost inventory (reducing the Inventory asset and recording a write-off expense), the reimbursement partially or fully recovers that loss. If you haven’t been systematically auditing for Amazon reimbursements, you may be leaving money on the table. Services like Getida (which works on contingency, typically 25% of recovered reimbursements) audit your Amazon account for unpaid claims — they frequently find thousands in missed reimbursements for established sellers.
How does the marketplace facilitator law affect my sales tax obligations?
Marketplace facilitator laws (adopted by most states since 2019) require large platforms like Amazon, Shopify, Walmart, and eBay to collect and remit sales tax on behalf of third-party sellers for transactions on their platforms. This significantly reduces the sales tax compliance burden for many ecommerce sellers — if you sell exclusively through platforms covered by marketplace facilitator laws, you may not need to collect or remit sales tax directly in most states. However: (1) Not all platforms are marketplace facilitators in all states — verify for each channel; (2) If you have physical nexus in a state (warehouse, employees), you may have additional obligations beyond what the platform handles; (3) Some platforms are marketplace facilitators for products but not for all transaction types (gift cards, for example). Your accountant should do a nexus analysis that accounts for all your channels, physical locations, and marketplace facilitator coverage.
We use landed cost for our COGS but our accountant keeps asking about it. What should they know?
Landed cost is the total cost to get a unit to your warehouse: purchase price + inbound freight + import duties + customs brokerage + quality inspection + other importing costs. Your accountant needs to know your landed cost calculation methodology because it determines your inventory asset value and your COGS. Key questions they should ask: How do you allocate freight and duties across multiple SKUs in a single shipment? (typically by unit count or by purchase value) Do you update landed cost when freight rates change significantly? (yes, for new POs) Do you have a mechanism for tracking landed cost by SKU in your inventory management software? The specific software you use (Linnworks, Cin7, SkuVault, etc.) determines how landed cost flows into your accounting system. If your accountant isn’t asking about this, they may be using purchase price as your COGS — which understates COGS, overstates gross margin, and produces incorrect inventory values.