
Master inventory accounting, marketplace reconciliation, and unit economics with CFO partners who understand e-commerce operations. From DTC brands to Amazon FBA sellers, we provide the financial infrastructure online retailers need to scale profitably.
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Online retailers face unique financial complexities from inventory costing to marketplace fee reconciliation.
From bootstrapped DTC startups to 8-figure Amazon sellers, we provide specialized accounting for online retail.
Monitor the operational and financial metrics that drive e-commerce profitability and growth.
Most e-commerce businesses don't know which products are actually profitable once you factor in all costs. We provide SKU-level profitability analysis with fully loaded COGS including landed costs, storage fees, and shipping.
We identify money-losing products hidden by incomplete cost tracking
Clients improve gross margin by eliminating losers and focusing on winners
Daily updates showing contribution margin by SKU, channel, and cohort
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Client Success
"Rich and the aquifer team helped us significantly improve our financial infrastructure. This allows us to focus on scaling faster, while feeling confident we have the right financial systems in place."
"Rich and the aquifer team helped us significantly improve our financial infrastructure. This allows us to focus on scaling faster, while feeling confident we have the right financial systems in place."
"Rich and the aquifer team helped us significantly improve our financial infrastructure. This allows us to focus on scaling faster, while feeling confident we have the right financial systems in place."
"Rich and the aquifer team helped us significantly improve our financial infrastructure. This allows us to focus on scaling faster, while feeling confident we have the right financial systems in place."
"The Aquifer team has been incredibly insightful in approaching our finance stack, making them an invaluable partner for our business. They work with us rather than around us and continue to lend their expertise in the world of web3 accounting."
"Aquifer was instrumental in helping GDA scale by providing financial infrastructure & processes, financial advisory seed + Series A rounds, corporate accounting & tax support, and any other ad-hoc projects. The team brought a strong sense of co-founder ownership."
We don't just reconcile Shopify payouts. We become integrated partners who understand your CAC, inventory turns, and marketplace dynamics—speaking the language of modern online retail.
We specialize exclusively in online retail, understanding nuances from FBA fees to landed costs that generalist accountants miss.
Proactive nexus monitoring, automated multi-state filing, and audit defense keep you compliant in 45+ jurisdictions.
Real-time profitability tracking by SKU, channel, and customer cohort—showing exactly where to focus for growth.
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Our experienced CFOs bring decades of expertise across various industries to help your business thrive







We integrate with Shopify, Amazon Seller Central, eBay, Walmart Marketplace, and other platforms to automate daily sales reconciliation. We match marketplace settlement reports to bank deposits, track all fees (referral fees, FBA fees, storage), account for returns and refunds, reconcile promotional discounts, and ensure every transaction is properly recorded. Reconciliation is completed daily, not monthly.
We implement perpetual inventory tracking with real-time valuation using FIFO or weighted average cost methods. We calculate fully loaded landed costs including product cost, freight, duties, storage fees, and FBA prep fees. We track inventory across multiple warehouses and FBA fulfillment centers, establish reserves for obsolete and slow-moving inventory, and provide SKU-level profitability analysis with true COGS.
Yes. We monitor economic nexus thresholds across all 45 states with sales tax, identify where you've triggered nexus obligations, handle state registrations and seller permits, set up automated sales tax filing (monthly/quarterly based on volume), manage exemption certificates, and provide audit defense support. We've helped clients resolve $500K+ in back sales tax exposure through voluntary disclosure agreements.
We build detailed profitability models for each SKU including revenue (net of returns, discounts, and marketplace fees), fully loaded COGS (product cost + landed costs + storage + FBA fees), allocated marketing costs (CAC by channel), payment processing fees, shipping costs, and overhead allocation. The result is true contribution margin by SKU showing which products drive profit and which lose money.
We track GMV and net revenue by channel, average order value (AOV), gross margin % with landed costs, contribution margin by SKU, CAC and LTV by channel, repeat purchase rate, inventory turnover ratio, days inventory outstanding, cash conversion cycle, and operating cash flow. All metrics are updated daily with custom dashboards for real-time visibility.
Absolutely. Amazon's systems are notoriously difficult to reconcile. We track FBA inventory quantities vs. your records, reconcile storage fees and long-term storage fees, account for FBA removal and disposal orders, handle lost or damaged inventory claims, reconcile customer returns and reimbursements, and ensure Amazon settlement reports match bank deposits. We catch discrepancies Amazon misses.
For cross-border sales, we track multi-currency transactions with proper FX gain/loss recognition, manage VAT/GST compliance in Europe, Australia, and other jurisdictions, handle import duties and customs accounting, coordinate with international 3PL providers, and ensure transfer pricing compliance for inter-company transactions. We support e-commerce businesses selling in 15+ countries.
Yes. We build 13-week rolling cash flow forecasts, optimize inventory purchasing to minimize cash tied up in stock, negotiate payment terms with suppliers (net 30 to net 60), identify opportunities for inventory financing, analyze promotional ROI to focus on cash-generative campaigns, and provide weekly cash position updates with actionable recommendations.
Get a free e-commerce financial audit. We'll analyze your SKU profitability, sales tax exposure, and unit economics—providing actionable insights to improve margins.