5 Questions to Ask Before Hiring a CPA for Your eCommerce Business

5 Questions to Ask Before Hiring a CPA for Your eCommerce Business

Most CPAs have never seen an Amazon settlement report. This is the problem.

Your accountant might be great. But if they've built their practice on W-2s and dentist returns, they're probably blind to the specific financial traps that sink eCommerce sellers. For a $1M seller with basic accounting gaps, a misaligned CPA could cost you $12K-$25K a year in missed deductions and inventory adjustments. Worse: audit risk, inventory miscalculations, and multi-channel reconciliation nightmares that blow up your year-end numbers.

Before you hire, ask these five questions. The answers tell you whether you're talking to someone who actually understands eCommerce accounting or someone who's going to cost you.

1. Have You Reconciled Amazon Settlement Reports Before?

If they hesitate, walk. Amazon settlement reports look nothing like a business checking account. There's a time lag between when inventory sells and when Amazon deposits money. There are fees embedded in the deposit. There are chargebacks, refunds, and FBA inventory adjustments that don't match your revenue line.

A generalist CPA sees the bank deposit and thinks "that's my revenue." A CPA who knows eCommerce knows that the Amazon settlement report is the source of truth, and the bank deposit is just the cash movement. If they've never reconciled one, they don't understand your business.

Ask them to walk you through how they'd handle a month where Amazon deposits $50K but the settlement report shows $62K in actual sales. This is normal. If they can't explain it, that's a red flag.

2. Do You Understand Shopify Payouts vs. Earned Revenue?

Here's what trips up generalist accountants: Shopify holds payments. You make a sale on Monday, but Shopify doesn't deposit the money until Friday. Meanwhile, your cash accounting is tracking deposits, not sales.

If your CPA is building your accounting system around the Shopify payout deposits instead of the actual sales date, your inventory calculations and profit reports will be wrong. You'll show losses in months you made money, and profits in months you didn't, because the cash doesn't match when the goods actually left your hands.

They should understand the difference between accrual accounting (recording sales when they happen) and cash accounting (recording when you get paid), and know which method actually serves your business. Most eCommerce businesses need accrual methods for inventory and sales tax purposes. A CPA who gets this wrong can leave you exposed to sales tax audits and overstate your quarterly profit by 20-30%.

3. How Do You Handle Multi-Channel Reconciliation?

If you're selling on Amazon, Shopify, and TikTok Shop, you're managing three different payment systems, three different fee structures, and three different revenue recognition methods all at once.

A CPA who's only ever worked with single-channel retailers will try to bolt Shopify on top of their Amazon process and hope it works. What you actually need is someone who can pull data from all three channels, reconcile it to a single source-of-truth accounting system, and explain where the discrepancies are.

Ask them how they'd structure your books if you're doing $200K on Amazon, $100K on Shopify, and $50K on TikTok. Do they pull raw data or manually enter numbers? Do they use accounting automation, or are they building spreadsheets? The right answer isn't just "we'll figure it out" — it's a system. If they don't have a playbook for multi-channel reconciliation, you'll spend 10+ hours per quarter trying to figure out why your numbers don't match, and audits become a nightmare.

4. Do They Understand Inventory Accounting, Not Just Cash-In, Cash-Out?

This kills most small business accountants. They think accounting for a product business is the same as accounting for services: money in, expenses out, profit is the difference.

But if you bought $50K in inventory last month and only sold $30K of it this month, your profit isn't what you took home — it's about $30K in cost of goods sold, not the full $50K you spent. The other $20K is now an asset on your balance sheet (unsold inventory). A CPA who ignores this will overstate your expenses and understate your profit, which destroys your tax planning and makes you look less profitable than you are.

They also need to understand inventory valuation methods (FIFO, LIFO, weighted average), obsolescence reserves for dead stock, and landed cost calculations if you're sourcing internationally. Ask them how they'd handle a situation where you bought units at $8, sold 60% at $25, and now have 40% sitting as unsold inventory that cost $4 to acquire but is only worth $3 today.

5. What's a Specific Tax Problem You Caught That a Client Didn't Know About?

This question separates CPAs who actually work in eCommerce from ones who are just saying the right words.

A real answer might sound like: "One of my sellers was doing $2.5M on Amazon but had never separated the FBA fees from COGS. Once we fixed the accounting, we realized they were understating their profit margin by 8%, which meant they were pricing all their products too low. Or: "We found that a client's bulk import duties weren't being capitalized to inventory cost, so they had understated COGS by $40K over two years."

If they can't give you a specific, verifiable story about finding a real mistake, they probably haven't done enough eCommerce work to spot mistakes in yours.

After You Ask the Questions

You're looking for someone who doesn't just understand eCommerce — they live in it. They should be able to talk through your specific channels, pricing strategy, and sourcing method without asking basic questions. They should have systems in place already, not promise to "build it once you come on board."

If the CPA you're talking to doesn't pass at least four of these five questions, keep looking. The wrong accountant will cost you a lot more than the right one charges.

When you're ready, ECOM CPA is a firm that works exclusively with eCommerce sellers across Amazon, Shopify, and Walmart Marketplace. They score 4.8 on Sam's List and focus on financial clarity and growth for 7-9 figure sellers. You can filter by specialty and read verified reviews from other eCommerce founders before your first call.

Sam's List vets accounting firms that work exclusively with eCommerce brands. Read what other 7-9 figure sellers actually think before you call anyone. samslist.com