1. Sales Tax Compliance (Biggest Pain Point)

📌 Why it's tricky:

• Sales tax laws vary by state and country (e.g., U.S. states have different nexus rules).
• Marketplace Facilitator Laws (e.g., Amazon, Shopify) may handle tax, but sometimes sellers still have obligations.
• Economic Nexus Rules (e.g., if sales exceed a threshold in a state, you owe tax there).

✅ Solution:

• Use tax automation software like Avalara, TaxJar, or Shopify Tax to track tax obligations.
• Regularly update sales tax collection settings in marketplaces.

2. Inventory Accounting (COGS & Valuation)

📌 Why it's tricky:

• Managing Cost of Goods Sold (COGS) accurately affects profit margins.
• Tracking shrinkage, damages, or lost inventory across warehouses and fulfillment centers.
• Choosing FIFO vs. LIFO vs. Weighted Average inventory costing method.

✅ Solution:

• Use inventory tracking tools like QuickBooks Commerce, TradeGecko, or DEAR Inventory.
• Reconcile inventory counts monthly to avoid discrepancies.

3. Payment Processing & Revenue Recognition

📌 Why it's tricky: