Terms of Service

Last updated: 6 September 2026 · Operator: Deng Daqiang · Support: dengdaqiang@163.com

Agreement

By using FeeMath (the website, the free calculator, and FeeMath Pro) you agree to these terms. If you do not agree, do not use the service.

The product

FeeMath provides tools to estimate Etsy marketplace fees and profit. The free calculator is a single-order estimator. FeeMath Pro is a paid monthly subscription ($12 USD / month at list price) for CSV-based listing analysis, ads ROAS after fees, and price simulation.

FeeMath is an independent tool. It is not affiliated with, endorsed by, or sponsored by Etsy, Inc. "Etsy" is a trademark of Etsy, Inc.

Not professional advice

Fee estimates are based on published Etsy fee schedules and your inputs. Etsy can change rates, and your shop's actual deductions can differ. FeeMath is not tax, legal, or accounting advice. Always confirm figures in Shop Manager and with a professional if you need that.

Accounts and Pro

Paid plans are billed in USD through Creem, who acts as merchant of record (including applicable taxes). You authorize recurring monthly charges until you cancel. Cancel via the Creem customer portal or by emailing support; access continues through the paid period.

Founding waitlist pricing (50% off list) applies only if we confirm it in writing when Pro checkout opens.

Acceptable use

Intellectual property

The FeeMath name, site, and software are owned by the operator. You keep ownership of your shop numbers and CSV files.

Disclaimer

The service is provided "as is." We do not warrant uninterrupted operation or that every fee line will match Etsy's ledger. To the extent permitted by law, we are not liable for lost profits, shop decisions, or ad spend made using the calculator.

Refunds

See the Refund Policy.

Changes

We may update these terms. Continued use after the "Last updated" date means you accept the new terms.

Contact

dengdaqiang@163.com