Accounting For Internet Sellers

A Guide Built For E-commerce Business Owners For a Single Purpose: Maximum Profitability

Running an eCommerce business isn’t about accounting—but your numbers drive growth. This guide shows how to set up the right systems, manage inventory, track cash flow, stay tax-ready, and know when to DIY or get help—so you stay profitable and in control.
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Experience

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Happy Clients

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Strong Team

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Language:

English

Copyright:

2025

Available On

Introduction

Running an eCommerce business isn’t about accounting—you started because you had a product to sell and the drive to grow. But eventually, every founder realizes: the numbers run the business.

Inventory, cash flow, margins, taxes—they’re all connected. Weak accounting slows decisions, causes mistakes, and cuts into profits. Strong accounting keeps you profitable, fundable, and in control.

That’s why we wrote this book: a practical guide built from years of helping online sellers—from Amazon FBA to Shopify—create accounting systems that work.

Inside, you’ll learn to:

  • Set up the right tech stack
  • Manage inventory and multi-channel sales
  • Track cash flow with confidence
  • Stay tax-ready year-round
  • Know when to DIY vs. call the pros

You don’t need to be an accountant—just the right systems and a clear plan. That’s what this guide delivers.

About The Author

Gary Jain is the Founder & CEO of Ledger Labs, Inc., a finance operations firm for e-commerce and retail brands. With 12+ years of experience, he helps businesses move from manual chaos to automated, data-driven systems.

He holds a Master’s in Business Data Analytics from Harvard Business School and is a certified accountant with credentials from both the IRS and the Association of International Certified Professional Accountants. Before Ledger Labs, Gary co-founded Cosmos7, Inc. and Branding Labs, Inc., and served as a fractional CFO for multiple startups.

Expert in QuickBooks, Xero, NetSuite, A2X, Hubdoc, Zapier, and other accounting software.

Our Testimonials

What Our Customers Say

Find out what our customers are saying about our products.

My main problem always has been to know my accurate profits & this is precisely what Ledger Labs helped me with. They went through my entire supply chain costs, my monthly operational expenses, and COGS and got me the correct costing of my goods and the cost of running the business. Now I know how much I need to sell & at what price I should sell it to be profitable.

Ariel Robinson CEO & Founder

Since working with Ledger labs, our bookkeeping and Controller processes have been streamlined. The routine accounting tasks are managed on a predictable schedule, and checklists are used to ensure that all required documents are processed within the proper deadlines. We have improved the accuracy and timeliness of our financial statements and other crucial

Patrik Nichols CFO

We have a unique business, and almost all the accounting firms we have engaged so far have been unable to get a hold of our business. But Ledger Labs really took the bull by its horn. They understood our business better than us & created a very customized process & systems to streamline our accounting department. We now have detailed step-by-step process documentation, checklists & schedule of reports.

Amanda Fludd CEO

Ledger Labs found $18K in missed deductions that our old accountant completely missed—same books, same receipts, totally different results. That’s when I knew we were finally working with pros. Since then, they’ve helped us restructure expenses and make tax planning part of the daily flow, not just something we scramble on last minute.

Michael Smith CFO

Gary—yes, the founder—took the time to really understand our business and where we were struggling. Within a few weeks, our books were clean, our cash flow was clear, and we were spending way less time managing it all. You can tell he genuinely cares, and that energy runs through the whole team

Nicole Allen Founder & CEO

Accounting For Internet Sellers

A Guide Built for E-commerce Business Owners For a Single Purpose: Maximum Profitability

Get Ready-to-use Templates for Financial Statements