Margin Ruler

Return Cost Calculator for Shopify Margin Calculator (United States)

Return Cost Calculator for Shopify Margin Calculator in United States. Start with a national planning baseline, then choose a city to open the regional planning page.

Amazon FBA is active. Other marketplace modules stay marked as planned until audited.

Published fee inputs, dated assumptionsNo account or emailPrivate unless you save
Methodology

Return Cost Calculator. Estimates monthly and annual return burden from return rate, labor time, non-resellable inventory loss, return shipping, and non-refunded fee percentage.

Fee basis: source-state planning estimate; modeled fee basis is under review and not a Seller Central reconciliation. Last source-state review: 2026-06-07.

Source-state status

planning estimate. Planning estimate — fee basis is source-dated and under review, not a Seller Central reconciliation.

Explicitly excluded

  • returns processing fee — Excludes Amazon returns processing fees (category- and return-rate-dependent).

Review the Amazon seller-fee source-state register →

Read the formula, inclusions, exclusions, and fee-category audit →

Calculator
Inputs
Enter your operating figures for a planning estimate based on published rate cards and industry midpoints.
We may earn a commission if you click a vendor link. External vendors are independent third parties.
Result
Fill in your operating figures above to get a planning estimate.
Review vendors before committing — no obligation.

This page is the city-agnostic starting point used for planning and AI-agent handoff. Pick a city below to open the regional planning page. The calculator uses the same source-dated fee logic unless local calibration is shown.

Choose your city