Who it fits
Multi-platform sellers
How to use it
Use this to decide whether an order or marketplace is actually profitable. It combines platform fees, payment fees, tax reserve, product cost, logistics, ads, and FX.
- Use one order or reporting period; adjust revenue for refunds and discounts first.
- Enter costs, marketplace/payment fees, planning reserve and your FX rate.
- Review contribution margin and break-even revenue, then separately account for omitted overhead.
- Replace illustrative values with statements, quotes and professional advice.
Checks before using
- Marketplace and payment fees are tracked separately
- FX rate is close to real withdrawal
- Ads and refunds are included in the same model
- Tax reserve has professional review when needed
Calculation and evaluation basis
Use one order or reporting period, in USD. Fees = revenue*(marketplace% + payment% + planning reserve%). Contribution = revenue - fees - goods - logistics - ads. Break-even revenue = listed non-percentage costs/(1-total fee rate); no finite threshold at 100% or more. Adjust revenue for refunds/discounts yourself. Fixed payment fees, labor and rent are not separately modeled.
These notes support a first-pass decision. Before buying software, scaling ads, shipping goods, or handling tax matters, verify against platform dashboards, service contracts, official pricing pages, and professional advice.
Limits and assumptions
- Tax reserve is a planning assumption, not a tax liability calculation
- Use revenue already adjusted for refunds and discounts in the same period
- Fixed payment fees, FX spread, labor and rent are not separately modeled; this is contribution, not complete net profit
Highlights
- Focuses on real take-home amount
- Includes ad spend and logistics as separate inputs
- Helps compare platforms with the same cost model