What comes from your inputs
The calculator uses the numbers you enter for supplier unit cost, order quantity, freight, insurance, brokerage, inspection, domestic delivery, duty rate, additional tariff rate, sale price, marketplace fee, payment fee, ad spend, fulfillment, and target margin.
If a supplier quote hides freight, duty, declared value, delivery terms, or importer responsibility, the model can only be as accurate as the assumptions you enter.
What the local tariff scenarios are
The tariff search uses local planning presets for common product categories. They are intentionally conservative examples to help sellers remember tariff risk during early quote comparison.
These presets are not live tariff data, do not classify your product, and may become outdated as trade actions, HTS notes, product materials, and country-of-origin rules change.
Where to verify official tariff information
- Use the official USITC HTS search before relying on a duty rate.
- Ask a licensed customs broker to confirm HTS classification for real orders.
- Check whether additional China-origin trade actions apply to the exact product, material, function, and origin.
- Keep the supplier's declared value, incoterms, freight lane, and importer-of-record assumptions in writing.
Platform fee presets
Platform presets are editable planning estimates. Amazon, Shopify, Etsy, and TikTok Shop fees can change by category, plan, fulfillment method, country, promotion, payment method, and return behavior.
How to use the result safely
- Use the calculator to decide whether a supplier quote deserves more diligence.
- Run downside scenarios for tariff, ads, and sale price before accepting a quote.
- Do not treat the report as customs, tax, legal, accounting, or marketplace fee advice.
- Before placing inventory orders, verify classification, fees, compliance, labeling, testing, and tax assumptions with qualified sources.