Disclaimer

Educational information only. All content on this site is provided for general educational and planning purposes. It does not constitute and should not be relied upon as legal advice, financial advice, tax advice, insurance advice, or any other professional advice.

Estimates are not guarantees. Calculator outputs are deterministic planning estimates based on inputs you provide and source-dated published industry rate cards and midpoints. The calculator uses Amazon US marketplace/FBA fee logic unless a local calibration is explicitly shown. They are not contracts, financial statements, or revenue/cost guarantees. Actual results depend on your specific agreements with platforms, carriers, and payment processors. See methodology for details.

E-commerce seller scope. This site focuses on cost, margin, and profitability planning for e-commerce sellers (marketplace, DTC, and multi-channel). We are not an accountant, tax advisor, financial planner, or licensed professional. Tax treatment, marketplace fees, and regulatory obligations vary by jurisdiction and change over time. Always confirm current figures with your accountant and platform before making decisions.

Third-party tools and vendors. This site does not provide e-commerce software, repricing, shipping, inventory, or ad-management services directly. Vendor links connect you to independent third-party businesses over which Margin Ruler has no control. Margin Ruler does not investigate, screen, or guarantee any vendor. We do not guarantee vendor performance, availability, pricing, or suitability for your specific business.

No endorsement or recommendation. Links to third-party vendors are not recommendations. References to vendors, programs, or services do not constitute endorsement. Margin Ruler does not investigate, certify, or verify the quality or legitimacy of any vendor. Vendor links are provided for informational convenience only — the decision to engage any vendor is entirely yours.

Use at your own risk. Your use of this site and any action you take based on content found here is entirely at your own risk. To the extent permitted by law, Margin Ruler disclaims all warranties, express or implied, regarding accuracy, completeness, or fitness for any particular purpose.