Amazon FBA, Etsy, Shopify & TikTok Shop Profit & Break-Even ROAS Calculator
Calculate exact marketplace referral fees, fulfillment costs, Break-Even ROAS, Target ACOS, and net take-home profit per unit across Amazon FBA, Etsy, Shopify, and TikTok Shop.
🛒 Interactive Marketplace Fee, Net Profit & Break-Even ROAS Calculator
2026 Marketplace Fee & Break-Even ROAS Comparison Table ($50 Order)
| Platform | Commission & Processing | Total Fee on $50 Sale | Pre-Ad Profit ($15 COGS) | Break-Even ROAS |
|---|---|---|---|---|
| Shopify (Direct-to-Consumer) | 2.9% + $0.30 (0% platform fee) | $1.75 | $33.25 (66.5%) | 1.50x |
| TikTok Shop (US / UK) | 8.0% Referral Fee + $0.30 | $4.30 | $30.70 (61.4%) | 1.63x |
| Etsy Marketplace | 6.5% Tx + 3% Pay + $0.45 | $5.20 | $29.80 (59.6%) | 1.68x |
| Amazon FBA | 15% Referral + ~$5.20 FBA | $12.70 | $22.30 (44.6%) | 2.24x |
Frequently Asked Questions
How do you calculate Break-Even ROAS and Target ACOS for Amazon FBA, Etsy, and Shopify in 2026?
Break-Even ROAS equals 1 divided by your pre-ad profit margin percentage (Formula: Selling Price ÷ Profit Before Ads). For example, if a $50 product has $30 in COGS, referral fees, and shipping ($20 profit before ads, or 40% margin), your Break-Even ROAS is 2.50x (and Break-Even ACOS is 40%).
What are the total seller fees on Etsy vs Amazon FBA vs TikTok Shop in 2026?
Etsy charges a 6.5% transaction fee + ~3% + $0.25 payment processing fee (+12%–15% Offsite Ads if applicable). Amazon charges an 8%–15% referral fee plus FBA fulfillment/storage fees. TikTok Shop charges an 8% referral fee in the US/UK. Shopify charges 0% platform fee when using Shopify Payments (2.4%–2.9% + $0.30 card processing).