eCommerce and Amazon FBA Accounting

Selling through online marketplaces opens doors to millions of customers, but it also creates complex accounting and tax obligations. Sales flow in from multiple channels, fees vary by platform, and inventory may sit in dozens of fulfillment centers. Nichols Accounting provides tailored eCommerce and Amazon FBA Accounting services, giving digital sellers clear, accurate financial reporting and sales‑tax compliance so they can focus on growth instead of paperwork.

Marketplace‑Specific Accounting Challenges

Each platform—Amazon, Shopify, Walmart, Etsy—applies its own fee schedules, payment delays, and promotional charges. Our team maps every revenue and expense category to the correct ledger account, ensuring sales, returns, pick‑and‑pack fees, and advertising costs appear where they belong.

We reconcile marketplace deposits against order data to confirm that all fees are captured and no revenue is missed. Multi‑currency settlements are translated into U.S. dollars at accurate rates, protecting margins and simplifying foreign‑tax calculations. By turning complex transaction streams into clean financial statements, we give owners the insight needed to price products confidently and plan future inventory purchases.

Cost of Goods

For Amazon FBA and other fulfillment programs, the cost of goods sold and inventory can be challenging to manage. Inventory often sits in dozens of warehouses at once, making valuation and cost tracking a challenge. Nichols Accounting works with e-commerce and Amazon sellers to navigate this complexity. 

We track cost of goods sold by SKU, including freight, customs duties, and storage fees, so margin reports reflect the full cost of delivering each product. Accurate inventory accounting prevents stock‑outs, flags slow‑moving items, and highlights high‑margin opportunities, allowing sellers to make data‑driven purchasing and pricing decisions.

Marketplace Sales Tax and Multi‑State Filings

Economic nexus rules require online sellers to collect and remit sales tax in numerous states once volume thresholds are met. We evaluate your transaction totals and trigger points to identify where registration is required, then set up automated tax calculators that apply correct rates at checkout.

Monthly or quarterly filings are prepared for each jurisdiction, and remittances are submitted through secure portals. Our team monitors rate changes, exemption rules, and marketplace facilitator laws, ensuring you remain compliant while avoiding overpayments. With consistent tax processes in place, you can expand into new markets without fearing penalties or surprise audits.

Ready to simplify your eCommerce finances?

Schedule a discovery call with us today, and let’s design an accounting solution that supports your online growth.

Here's how it works:

1. Schedule a Call

Fill out our simple contact form or give us a call.

2. Discuss Your Goals

We'll talk through your current challenges and long-term vision.

3. Build a Roadmap

Together, we'll outline the most efficient path to your financial success.

4. Get Started

Our expert team will handle the details so you can focus on growing your business.

Why Choose Nichols​

eCommerce Platform Expertise:

We understand Amazon, Shopify, WooCommerce, and other marketplaces, so setup and reconciliations match each platform’s unique structure.

Sales Tax Compliance:

Ongoing monitoring of nexus thresholds and automated filings keep your business ahead of ever‑changing rules.

Real‑Time Inventory Insight:

Integrated cloud tools track stock and landed costs, giving sellers actionable data to protect margins.

Clear, Timely Reporting:

Dashboards and monthly statements translate high‑volume order data into straightforward metrics—revenue, margin, and cash flow.

Learn More About Our Firm

Discover the story behind Nichols Accounting, meet our dedicated team, and see how our values drive the work we do.