How a $940K Amazon Seller Resolved a Multi-State Tax Problem and Built a Path Off FBA

Service: Tax Readiness & Compliance Support, Accounting Oversight, Financial Planning & Strategy | Stratovus CFO Services
Client: Amazon FBA Seller | S-corp | Owner-operated | $940,000 revenue

Introduction

Most fractional CFO firms have a revenue floor. Some set it at $1M. Others set it higher. This Amazon seller was at $940,000 in gross revenue when he came to Stratovus. He had already been turned away once.

The business was growing. Sales had nearly doubled over two years, driven by a single top-performing product line that had gained traction in one state before spreading nationally. That growth felt like success. Behind the numbers, it had created a tax problem the owner didn’t know he had, a compliance exposure he wasn’t equipped to handle, and a cost structure that was quietly eating into every dollar Amazon sent him.

He wasn’t looking for someone to tell him he was doing well. He needed someone to tell him the truth.

The Situation

The seller had been running his business through FBA for three years. Revenue was strong. His tax preparer filed annually and kept things clean on the surface. But as gross sales crossed $700,000 and then pushed toward $1M, the financial picture underneath started to shift in ways no one was tracking.

Three problems had been building without anyone naming them:

Sales volume in one state had crossed the economic nexus threshold, creating a sales tax filing obligation the owner didn’t know existed. As volume grew in additional states, more nexus exposure followed. No filings had been made. Penalties were accumulating quietly.

The FBA fee structure, including storage fees, fulfillment fees, referral fees, and reimbursements, had never been reconciled against actual net margin. The owner knew his gross revenue. He did not know his true net profit per unit.

The business had no forward-looking financial model. The owner was making inventory decisions, considering a move toward a hybrid FBA and third-party logistics model, and evaluating whether to reduce Amazon dependence entirely. None of those decisions had a financial framework behind them.

Phase One: Tax Compliance and Nexus Resolution

The first priority was stopping the bleeding on the compliance side. Dan engaged Stratovus’s tax partner to conduct a full nexus review across all states where the seller had generated revenue. The review identified three states with active filing obligations, one of which had gone unaddressed for 18 months.

Voluntary disclosure agreements were filed where applicable to reduce penalty exposure. A sales tax compliance calendar was established going forward. Estimated payments were tied to actual revenue figures rather than prior-year numbers, which had been consistently understating the current tax position as the business scaled.

The owner’s tax preparer had been filing correctly within the scope of what they knew. The problem wasn’t bad preparation. It was that no one had been watching the business closely enough to flag the nexus issue before it became a liability.

Phase Two: Cleaning Up the Numbers and Building Real Reporting

With compliance addressed, the next step was building a financial picture the owner could actually use. Amazon’s settlement reports are notoriously complex. FBA fees, storage charges, reimbursements, and returns are intermingled in ways that obscure true profitability. The owner’s books showed gross revenue accurately. They showed almost nothing else correctly.

Stratovus’s accounting partner rebuilt the chart of accounts to separate Amazon fees, fulfillment costs, returns, and reimbursements as distinct line items. A monthly close process was established. For the first time, the owner could see his actual net margin per product line, not just his bank balance after Amazon’s deposit.

That data immediately changed how he was thinking about the business. Two product lines that appeared profitable were generating margin below 12% after fees. One product line he had been considering discontinuing was his strongest performer on a net basis.

Phase Three: Strategy and the Platform Transition

With clean books and a functioning compliance calendar in place, the engagement shifted to the forward-looking work the owner had actually come for. He had been thinking about moving away from a pure FBA model toward a hybrid structure using a third-party logistics provider for his top-performing SKUs. The goal was to reduce Amazon’s fee drag and improve net margin without sacrificing fulfillment speed.

Dan built a comparative financial model showing the FBA cost structure against projected 3PL costs at current and projected volume levels, factoring in storage savings, fulfillment fee differences, and the capital required to make the transition. The model gave the owner a clear answer: at what revenue level and margin profile the hybrid model made financial sense, and what it would cost to get there.

Conclusion

This seller was doing nearly $1M in revenue and had been turned away by other firms. The business wasn’t too small. It was exactly the kind of business that falls through the cracks of the fractional CFO market: too complex for a bookkeeper, not large enough for firms with revenue minimums.

The work here wasn’t complicated in concept. It was disciplined execution: get the compliance right, build reporting that reflects reality, and then make decisions from a position of certainty instead of a bank balance. That’s what a CFO is supposed to do. Most of these owners have just never had one.