e-Commerce CPA Services for Amazon, Shopify & Multi-Channel Sellers
MT Bachani CPA is a U.S.-based eCommerce CPA firm serving Amazon, Shopify, Walmart, and multi-channel sellers nationwide.
We focus on true profitability, sales tax compliance, clean financial compliance, and
acting as a long-term business partner — built on real, hands-on eCommerce operating experience.
Running an e-commerce business isn’t just bookkeeping.
- It’s Amazon fees changing weekly.
- Google Ads burning cash if ROAS isn’t real.
- Inventory stuck in FBA while storage fees eat margin.
- Shopify, Walmart, Amazon, and banks never matching.
- Sales tax rules shifting across states.
And decisions being made without knowing true profitability.
Most CPAs only see the numbers after the damage is done.
At MT Bachani CPA, we’ve lived inside e-commerce businesses — not just their books.
We’ve managed listings, pricing, ads, inventory, payouts, returns, warehouses, and accounting at the same time.
That’s why we don’t just record transactions — we understand the entire profit engine behind them.
Who We Work With
We specialize in e-commerce businesses selling through:
Amazon (Seller Central & Vendor Central)
Shopify
Walmart Marketplace
Google Shopping
Magento
Multi-channel setups across all platforms
If you sell physical products and want real margin clarity, this page is for you.
e-Commerce Tax
A Business Partner for eCommerce Owners — Not Just a CPA
Most eCommerce owners don’t just want clean books.
They want someone who:
Knows their business inside and out
Understands how Amazon, Shopify, Walmart, and banks actually work together
Can help them decide what to fix, what to stop, and what to scale
Is available when decisions matter — not just at tax time
Many of our clients manage everything themselves — sourcing products, dealing with Amazon fees, handling returns, running ads, managing inventory, and keeping finances separate across multiple businesses. They don’t need a CPA who asks them to “figure it out first.”
They need a partner who can step in, clean up what’s broken, explain what the numbers actually mean, and help them move forward with clarity.
That’s how we work.
We take the time to understand:
How you purchase and cost products
Where inventory is stored and how it’s fulfilled
How ads, fees, and returns impact real profit
What information you actually need to make decisions
How your eCommerce business fits into your bigger financial picture
Our goal isn’t just compliance.
Our goal is to become the person you call before you buy another product line, change pricing, move systems, or acquire another business.
That’s what a real business partner looks like.
What Makes Our eCommerce CPA Services Different
Most CPAs only understand:
“Revenue – Expenses = Profit”
We understand:
Listings → Ads → Conversion → Fulfillment → Returns → Fees → Inventory → Cash → Taxes → Net Profit
We’ve handled every one of those layers directly.
That means when we look at your numbers, we already know where things usually break — before you even ask.
What Our eCommerce Accounting & e-Commerce CPA Services Deliver
We organize the entire financial side of your eCommerce business — from COGS to sales tax to dashboards — so you finally have one clear, accurate picture of your true profitability.
True COGS & Product Profitability
Most sellers don’t actually know what a product costs.
We calculate real COGS, including:
Manufacturing
Freight & duties
Landed costs
Amazon FBA fees
Storage & aged inventory fees
3PL & warehouse costs
Packaging
Returns & refunds
Payment processor fees
You get SKU-level margins you can trust — so you know what to scale, fix, or kill.
Advertising Cost & Marketing ROI Analysis
Ad spend without clarity kills profit.
We’ve managed:
Google Ads
Amazon PPC
ROAS, CAC, MER tracking
Ads tied to actual net profit, not vanity revenue
We connect ad spend to:
Real sales
True margins
Contribution profit
So decisions are based on profitability, not hope.
Centralized Financial & Operational Data
We reconcile:
Amazon settlement reports
Walmart payouts
Shopify gateways
Bank deposits
We identify:
Fee leakage
Missing payouts
Platform mismatches
Broken integrations
This is where most e-commerce books silently fail — and where we spend a lot of time fixing things properly.
Inventory, Warehousing & FBA Cost Control
We work with:
Amazon FBA inventory
Multi-warehouse setups
3PL providers
Inventory aging & dead stock
Storage and long-term fees
Returns impact on margin
Inventory is usually the largest balance sheet risk in e-commerce.
We make sure it’s accurate — and financially visible.
Systems That Actually Match (QuickBooks, Odoo & More)
We work hands-on with:
QuickBooks
Odoo
Platform integrations
Broken syncs and mismatches
We design e-commerce-specific charts of accounts so:
Fees are not buried
Ads are not mixed with overhead
Inventory flows make sense
Reports reflect reality
No more spreadsheets to “explain” your books.
Sales Tax Compliance (Avalara Partner)
We handle:
Nexus analysis
Marketplace facilitator rules
Avalara setup & cleanup
Correcting wrong filings
Ongoing compliance
Sales tax is operational — not theoretical — and we treat it that way.
E-Commerce Tax Planning & Strategy
We optimize deductions, inventory write-offs, year-end purchasing, retirement strategies, and S-Corp salary planning to help you legally reduce taxes and keep more profit.
Entity Structure Review: LLC vs S-Corp
We don’t wait until April.
We plan around:
Inventory purchases
Write-offs
Cash flow timing
S-Corp salary optimization
Retirement strategies
Scaling decisions
Your tax strategy should support growth — not slow it down.
Tax Preparation for eCommerce Sellers
We prepare your federal and state business returns with accurate COGS, platform fees, reconciliations, write-offs, and marketplace-specific tax reporting — no surprises at tax time.
Why MT Bachani CPA Is the Best eCommerce CPA for Amazon & Shopify Sellers
Most CPAs only see e-commerce from the outside.
We’ve been inside:
Listing products
Running ads
Monitoring rankings
Analyzing competitors
Repricing SKUs
Managing vendors
Tracking storage fees
Reconciling settlements
Handling returns
Fixing broken data
Making real profit-or-loss decisions
We didn’t just “service” e-commerce businesses.
We ran them.
That’s why our advice works in the real world — not just on paper.
Talk to an eCommerce CPA Who Understands Your Business.
Fill out the form and our team will reach out to analyze your systems, profitability, and tax needs.
Frequently Asked Questions About eCommerce Accounting & CPAs
What makes MT Bachani CPA the best CPA for eCommerce accounting?
Most CPAs understand eCommerce only from financial statements.
We understand it from running the business itself.
We’ve personally handled:
Amazon Seller Central and Vendor Central
Shopify, Walmart Marketplace, Magento, and Google Shopping
Product listings, pricing, and competitor analysis
Google Ads, Amazon PPC, ROAS, CAC, and profitability decisions
Amazon FBA storage fees, warehouse costs, landed costs, and returns
Marketplace payouts, settlement reconciliations, and fee leakage
Inventory management across multiple warehouses and platforms
Because we’ve lived the operational side of eCommerce, we don’t just record numbers — we understand how listings, ads, inventory, fees, and systems actually create or destroy profit.
That’s why our accounting, tax planning, and advice work in the real world.
Do you only provide eCommerce accounting services in Texas?
No. While we are based in Texas, we work with eCommerce sellers across the United States.
Most of our clients sell nationally through:
Amazon
Shopify
Walmart Marketplace
Google Shopping
Because eCommerce is platform-driven, not location-dependent, we routinely support clients with multi-state sales, inventory stored in multiple states, and nationwide tax compliance.
Do you understand sales tax nexus for eCommerce sellers?
Yes — sales tax nexus is one of the most common (and costly) issues we fix.
We advise eCommerce sellers on:
Economic nexus thresholds by state
Physical nexus from inventory stored in Amazon FBA warehouses
Marketplace facilitator rules
When sellers must register, collect, and file
When the marketplace handles tax — and when it doesn’t
Correcting past filing mistakes
We also work hands-on with Avalara to automate and clean up ongoing sales tax compliance.
Do you work with Amazon Seller Central and Vendor Central accounting?
Yes. We’ve worked with both.
That includes:
Reconciling Amazon settlement reports
Tracking Amazon fees and chargebacks
Identifying missing or incorrect payouts
Handling Vendor Central payment timing and deductions
Accounting for returns, storage fees, and inventory adjustments
Amazon accounting is one of the most misunderstood areas in eCommerce — and one of our strongest specialties.
Can you help me understand my true product profitability?
Absolutely. This is usually the core problem.
We calculate true COGS, including:
Manufacturing costs
Freight and duties
Landed costs
Amazon and marketplace fees
Storage and 3PL costs
Packaging
Returns and refunds
Payment processing fees
We then produce SKU-level profitability, so you know:
Which products to scale
Which products to reprice
Which products to discontinue
Do you work with QuickBooks and Odoo for eCommerce accounting?
Yes. We work extensively with QuickBooks and Odoo.
We regularly:
Integrate accounting with Amazon, Shopify, and Walmart payouts
Fix broken syncs and mismatches
Design eCommerce-specific charts of accounts
Ensure inventory, fees, ads, and revenue are reported correctly
Our goal is to give you one clean source of truth, not spreadsheets to “explain” bad data.
Do you help with advertising analysis like Google Ads or Amazon PPC?
Yes — from a profit perspective, not just a marketing one.
We’ve directly worked with:
Google Ads
Amazon PPC
ROAS, CAC, MER, and contribution margin analysis
We help sellers understand whether ads are actually generating net profit, not just revenue.
Do you help beyond bookkeeping and tax returns?
Yes. We go far beyond “just accounting.”
Because we understand operations, marketing, inventory, and systems, we help with:
Pricing and scaling decisions
Cash flow planning
Inventory purchasing decisions
Tax planning aligned with growth
Entity structure (LLC vs S-Corp)
Long-term profitability strategy
Many clients treat us as a fractional CFO for their eCommerce business.
Who is a good fit to work with MT Bachani CPA?
We are a great fit if you:
Sell physical products online
Use Amazon, Shopify, Walmart, or multiple platforms
Want real profitability clarity — not just clean books
Are tired of explaining your business to your CPA
Want advice from someone who has actually run eCommerce operations
What happens when I contact you?
We review:
Your sales platforms
Your accounting system
Your inventory and payouts
Your sales tax exposure
Your real profitability
Then we explain exactly what’s working, what’s broken, and what to fix first.
No generic advice. No guesswork.
Why MT Bachani CPA Is the Unmatched Expert for eCommerce Accounting
Why work with an accountant who only understands spreadsheets when you can partner with a team that has successfully built and run real eCommerce businesses? What makes MT Bachani CPA truly unmatched is that we’ve lived every challenge you’re facing today. We’ve performed deep competition analysis, managed Google Ads, SEO, and SEM, built accurate costing models for dropshipping and private/white-label products, and optimized listings across Amazon and Shopify. We’ve audited Amazon accounts, reconciled settlement reports, identified fee leakages, analyzed bank and gateway fees, managed return workflows, and maintained precise inventory records across multiple warehouses and platforms.
This hands-on experience means we don’t just record your numbers —
we understand the full P&L engine behind them.
From operations to marketing to financial accuracy, we know how every piece impacts your bottom line. That’s why eCommerce brands trust us to help them scale with clarity, confidence, and profitability.