E-commerce Business Budget Calculator

Plan your complete e-commerce financial budget with target percentage allocations for COGS, marketing, shipping, and fixed operating expenses.

Total Budgeted Costs$16,000.00
Projected Net Profit$4,000.00
Net Profit Margin20.0%
Break-Even Revenue$8,571.43 / mo

E-commerce Budget Allocation Formula

Budget = Revenue × Target %; Net Profit = Revenue - (COGS + Marketing + OPEX + Fulfillment); Break-Even = Fixed OPEX / Contribution Margin
  • Cost of Goods Sold (COGS): Product manufacturing, freight import duties, and landed wholesale cost (typically 25% to 35%).
  • Marketing & Advertising: Paid user acquisition, influencer marketing, and retention campaigns (typically 20% to 30%).
  • Shipping & Fulfillment: Postage, packaging materials, and warehouse pick-and-pack (typically 8% to 15%).
  • Fixed OPEX: Salaries, software apps, office rent, and insurance (typically 10% to 20%).

Step-by-Step Worked Example

Scenario:

Calculation Steps:

    Result:

    How to Use This Calculator

      Assumptions & Limitations

      • Budget percentages reflect healthy direct-to-consumer e-commerce benchmarks.
      • Variable costs scale linearly with monthly sales revenue.

      Frequently Asked Questions

      What is the standard rule of thumb for e-commerce budget allocation?

      A widely accepted benchmark is the 30/30/20/20 model: 30% for Cost of Goods Sold, 30% for Marketing & Advertising, 20% for Fulfillment & Operations, and 20% for Net Pre-Tax Profit.

      What happens if my marketing spend exceeds 30% of revenue?

      High ad spend directly compresses your net profit margin unless your customer lifetime value (CLV) generates profitable repeat orders without additional ad spend.

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