Ecommerce Accounting Services for Amazon, Shopify & Walmart Sellers
Unified accounting for multi-channel sellers. Shopify, Amazon, WooCommerce, eBay, and more—all in one platform.
We handle eCommerce accounting complexities so you focus on growing sales.
Running an online store demands precision. You manage inventory across multiple sales channels. You reconcile payments from Shopify, Amazon, eBay, and WooCommerce. You track cost of goods sold for thousands of SKUs. You handle sales tax across multiple states. You need real-time visibility into profitability, not month-old financials.
Bay Forward delivers specialized eCommerce accounting services designed for online sellers. We sync all your sales channels, track inventory in real-time, manage multi-state sales tax compliance, and provide accurate financial data that drives profitable decisions.
Our Odoo-integrated accounting platform connects your entire ecommerce ecosystem—giving you one source of truth for orders, inventory, costs, and cash flow.
Whether you sell $50,000 or $50 million annually, we provide the accounting infrastructure your online business needs to scale profitably.
Our Comprehensive Ecommerce Accounting Services
Complete Financial Management for Online Sellers
Ecommerce Bookkeeping & Reconciliation
Automated Daily Bookkeeping Across All Channels
Your multi-channel eCommerce operation generates thousands of transactions daily. We automate bookkeeping for every sale, refund, fee, and payout.
Whats Included:
- Daily Sales Recording We capture every transaction from Shopify, Amazon, eBay, WooCommerce, and other platforms automatically. No manual CSV imports needed
- Multi-Channel Reconciliation Reconcile Shopify, Amazon, eBay, WooCommerce, and all payment gateways daily with zero manual work.
- Expense Categorization COGS, shipping, marketing, platform fees, payment processing—all categorized automatically using AI-powered rules.
- Bank & Credit Card Sync Real-time bank feed connections with intelligent transaction matching.
- Monthly Close Process Complete month-end close with accrual adjustments, prepayments, and deferred revenue handled properly.
Inventory & COGs Management
Real-Time Inventory Valuation and Profitability Tracking
Accurate inventory accounting determines your true profitability. We track every product’s landed cost and COGS automatically.
Whats Included:
- Multi-location inventory tracking
- Landed cost calculations (product + shipping + duties + fees)
- FIFO/LIFO/Weighted Average costing
- SKU-level profitability analysis
- Dead stock and slow-mover identification
- Inventory turnover metrics
- Purchase order management
- Warehouse cost allocation
Sales Tax & Compliance
Multi-State Sales Tax Management
Post-Wayfair economic nexus rules require sales tax collection in 30+ states. We automate compliance.
Whats Included:
- Nexus monitoring and tracking
- Avalara/TaxJar integration
- Multi-state registration
- Automated tax calculations
- Monthly/quarterly filing and remittance
- Exemption certificate management
- Audit support and documentation
Financial Reporting & Analytics
Real-Time Dashboards That Drive Decisions
Real-Time Dashboards & Actionable Insights.
Whats Included:
- Real-time P&L by sales channel
- Product profitability analysis
- Customer cohort analysis
- LTV and CAC tracking
- Cash flow forecasting
- KPI dashboards (AOV, conversion rate, ROAS)
- Custom reporting
Fractional CFO for Ecommerce
Strategic Financial Leadership Without Full-Time Cost
Expert Strategy Without Full-Time Overhead.
Whats Included:
- Financial strategy and planning
- Fundraising preparation
- Pricing optimization
- Unit economics analysis
- Growth investment planning
- Exit planning support
ODOO ERP Integration
Unified Platform for Accounting, Inventory, CRM & eCommerce
Our unique expertise: We’re an Odoo Silver Partner specializing in eCommerce. Get one platform that manages your entire business.
Whats Included:
- Odoo implementation and setup
- Multi-channel marketplace integration
- Unified inventory management
- CRM and marketing automation
- Purchase and sales management
- Warehouse management system
- Reporting and BI dashboards
- Ongoing support and optimization
 Ecommerce Platforms We Support
Unified Accounting Across All Your Sales Channels . We provide specialized accounting for every major eCommerce platform connecting your entire multi-channel operation into one financial system.

Shopify Accounting
We sync your Shopify store(s) directly with Odoo for seamless order-to-cash accounting. Track sales, fees, payments, refunds, and inventory automatically.
- Â Daily sales reconciliation
- Shopify Payments settlement tracking
- App fee allocation
- Multi-store consolidation
- Multi-store consolidation

Amazon Seller Accounting
Complex Amazon accounting simplified. We handle FBA fees, referral fees, storage fees, reimbursements, and multi-marketplace consolidation.
- FBA inventory reconciliation
- Amazon fee categorization
- Reimbursement tracking
- Multi-marketplace consolidation (US, CA, UK, EU)
- Vendor Central accounting
- Brand Registry financials

Woocommerce Accounting
WordPress-powered stores get full accounting integration with payment gateway syncing and inventory management.
- Order and subscription tracking
- Payment gateway reconciliation (Stripe, PayPal, etc.)
- Membership revenue recognition
- Plugin fee tracking
- Multi-site consolidation

Ebay Accounting
EBay's complex fee structure and payout schedule require specialized tracking.
- Managed Payments reconciliation
- Final Value Fee tracking
- Promoted Listings fee allocation
- Multi-category sales analysis
- International site consolidation

Etsy Accounting
Handmade and vintage sellers get specialized support for Etsy's unique marketplace.
- Etsy Payments reconciliation
- Listing and transaction fee tracking
- Offsite Ads fee management
- Pattern integration
Our Pricing
Pricing basis: Monthly Revenue
Save 12.5% with annual billing | All prices are starting rates
01 Launch
Up to $50K/mo revenue
$750
/ Month
Save 12.5% billed annually
- Accounting Software e.g. QB reconciliation
- COGS & inventory tracking *
- Quarterly financial statements
- Sales tax filing (upto 2 states)
- Quarterly review call
- Provided Inventory System is available.
02 Growth
$50K–$250K/mo revenue
$1,800
/ Month
Save 12.5% billed annually
- Everything in Launch
- Monthly financials by the 15th
- Multi-channel reconciliation (Shopify, Amazon, etc.)
- Sales tax filings (up to 3 states)
- Monthly strategy call
03 Scale
$250K+/mo revenue
Custom Quote
Discount with annual billing
- Everything in Growth
- Dedicated account manager
- Custom e-commerce KPI dashboard
- International marketplace support
- Unlimited state sales tax filings
- Ongoing CFO advisory
Add-On Services
Subscribe Now For As Low As: $150 / Month
Payroll management
From $350/mo
Vendor / A/P management
From $400/mo
Additional state sales tax
$150/state/mo
Accounting setup & cleanup
From $750 one-time
Don't hesitate any longer
Seize the opportunity to recruit top talent today!
7 eCommerce Accounting Challenges We Solve
Your Journey to Better eCommerce Financials
CHALLENGE 1 Multi-Channel Sales Reconciliation

The Problem
You sell on Shopify, Amazon, eBay, WooCommerce, Etsy, and Walmart. Each platform has different payout schedules, fee structures, and refund policies. Reconciling revenue across channels manually creates errors and takes hours.

Our Solution:
We automate multi-channel reconciliation through Odoo integrations. Every sale, fee, refund, and chargeback syncs automatically to your accounting system. You see consolidated revenue by channel in real-time.

What You Gain:
- Automated daily reconciliation across all platforms
- Channel-specific P&L analysis
- Accurate revenue recognition
- Time savings: 15+ hours per month
- Elimination of manual data entry errors
CHALLENGE 2Inventory COGS Tracking

The Problem
Tracking thousands of SKUs across multiple warehouses and fulfillment centers creates inventory valuation chaos. You need accurate COGS to understand true profitability per product.

Our Solution:
Our Odoo-powered inventory system tracks landed costs (product + shipping + duties + fees) automatically. We calculate COGS using FIFO, LIFO, or weighted-average methods based on your needs.

What You Gain:
- Real-time inventory valuation
- Product-level profitability analysis
- Automated COGS calculations
- Dead stock identification
- Purchase order optimization
CHALLENGE 3Sales Tax Compliance

The Problem
Nexus rules changed dramatically post-Wayfair. You now collect sales tax in 30+ states, each with different rates, rules, and filing frequencies. Manual tracking invites errors and penalties.

Our Solution:
We integrate with Avalara and TaxJar to automate sales tax calculations, track nexus triggers, and manage multi-state filing requirements.

What You Gain:
- Automated nexus monitoring
- Accurate multi-state tax calculations
- Timely filing and remittance
- Audit trail documentation
- Penalty avoidance
CHALLENGE 4Payment Gateway Reconciliation

The Problem
Stripe, PayPal, Shopify Payments, Amazon Pay, Square, each gateway settles at different times with varying fee structures. Reconciling these manually is error-prone.

Our Solution:
Automated gateway reconciliation ensures every transaction, fee, chargeback, and refund matches your books perfectly.

What You Gain:
- Daily automated reconciliation
- Fee tracking by payment processor
- Chargeback monitoring
- Cash flow accuracy
- Bank reconciliation efficiency
CHALLENGE 5Payment Gateway Reconciliation

The Problem
Selling internationally means managing multiple currencies, VAT compliance, customs duties, and cross-border tax rules.

Our Solution:
We handle multi-currency accounting, international tax compliance, VAT reporting, and foreign exchange gain/loss calculations.

What You Gain:
- Multi-currency financial reporting
- VAT compliance and filing
- Customs duty tracking
- FX gain/loss management
- International expansion support
CHALLENGE 6Returns and funds

The Problem
High return rates impact inventory, COGS, and revenue recognition. Tracking returns across channels manually creates reporting discrepancies.

Our Solution:
Automated return processing adjusts inventory, COGS, and revenue properly across all channels.

What You Gain:
- Accurate return rate tracking by product
- Inventory restocking automation
- Revenue adjustment accuracy
- Warranty and restocking fee management
- Return trend analysis
CHALLENGE 7Cash Flow forcasting

The Problem
Unpredictable inventory needs, seasonal sales swings, and varying payout schedules make cash flow planning difficult.

Our Solution:
We provide rolling 12-month cash flow forecasts based on historical sales patterns, inventory turnover, and seasonal trends.

What You Gain:
- 13-week cash flow projections
- Inventory purchase planning
- Seasonal cash needs forecasting
- Growth investment timing
- Working capital optimization
How we work
Your Journey to Better eCommerce Financials

Step 1:
Discovery & Assessment
Duration: Weeks 1
We analyze your current setup:
• Sales channel audit
• Accounting system review
• Data cleanup assessment
• Integration requirements
• Custom needs identification

Step 2:
Onboarding & Setup
Duration: weeks 1-2
We build your foundation:
• Odoo platform configuration
• Chart of accounts optimization
• Multi-channel integrations
• Historical data migration
• Team training

Step 3:
Ongoing Management
Duration: Monthly
Your dedicated team handles:
• Daily transaction recording
• Weekly reconciliation
• Monthly financial close
• Quarterly tax filings
• Strategic advisory sessions
Why Choose Bayforward
Why Leading eCommerce Brands Choose Bay Forward
We analyze your current setup:
- Ecommerce Specific Properties
We’re not general accountants learning eCommerce. We’re eCommerce specialists who happen to be great accountants. 300+ online sellers trust us. - ODOO Silver partner status
Our unique Odoo expertise gives you an all-in-one platform competitors can’t match. One system for accounting, inventory, CRM, and sales. - Multi channel mastery
Shopify, Amazon, eBay, WooCommerce, Walmart, Etsy—we sync them all automatically. - Real time visibility
No waiting 30 days for financial reports. See your numbers updated daily. - Scalable pricing
From $50K to $50M+ in annual sales, our pricing grows with you. - Dedicated team
Your assigned accountant, controller, and CFO advisor know your business intimately.
Ecommerce accounting fAQs
Typically 2-4 weeks from contract signing to
full automation, depending on complexity.
Shopify, Amazon (Seller & Vendor Central), eBay, WooCommerce, Etsy, Walmart Marketplace, BigCommerce, Magento, and custom platforms.
Yes. We manage multi-currency accounting, VAT compliance, customs duties, and international tax filings.
Absolutely. We specialize in ecommerce accounting cleanup and can fix years of backlog.
Pricing varies based on monthly revenue and transaction volume. All plans include bookkeeping, reconciliation, financial reporting, and support. Contact us for a custom quote.
No. We can work with QuickBooks, Xero, or NetSuite. However, Odoo provides the most comprehensive ecommerce solution.
We integrate with Avalara or TaxJar for automated calculations, track nexus triggers, and file/remit taxes in all required states.
Yes. We prepare and file business tax returns (1120, 1120S, 1065, Schedule C) annually.
Ready to transform your Ecommerce financials?
Stop spending hours on manual data entry. Get real-time visibility into your profitability. Make data-driven decisions that scale your business.
Bay Forward’s eCommerce accounting specialists are ready to take your financial operations to the next level.














