/ /Monthly E-commerce Profit Calculator
Monthly E-commerce Profit Calculator
Close your month in minutes: enter monthly revenue and every cost bucket to get monthly net profit, margin, daily average, and an annualized run rate.
Monthly Inputs
Monthly Revenue ($)
Monthly COGS ($)
Monthly Marketing ($)
Monthly Platform + Payment Fees ($)
Monthly Shipping + Fulfillment ($)
Monthly Overhead ($) Software, rent, labor, other
Monthly P&L
Monthly Revenue$55000.00
Total Monthly Costs-$41900.00
Monthly Net Profit$13100.00
Net Margin23.8%
Daily Average Profit$436.67
Annualized Run Rate$157200.00
Month verdict: The month nets $13100.00 (23.8% margin), about $436.67/day — a $157200.00 annual run rate. Healthy: bank it or reinvest in proven channels.
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Authoritative References
Frequently Asked Questions
How do you calculate monthly ecommerce profit?
Monthly Net Profit = Monthly Revenue - COGS - Marketing - Platform and Payment Fees - Shipping and Fulfillment - Overhead. Include every bucket or the month looks better than it was.
What monthly net margin is healthy?
10-20% of monthly revenue is healthy for most stores; 5-10% is acceptable while reinvesting aggressively. Negative months should be explainable (inventory builds, launches) and bounded.
How do you annualize a month?
Multiply monthly profit by 12 for a run rate, then adjust for seasonality — Q4-heavy stores should weight November-December separately instead of annualizing an average month.
Should owner salary count in monthly profit?
Yes — pay yourself a market salary inside overhead and treat the remainder as true profit. Otherwise the business looks profitable only because your labor is free.
Why track daily average profit?
Daily profit turns monthly goals into pacing: a $9,000 month needs $300/day. Mid-month pacing checks let you adjust ad spend before the month is lost.