Terms of use.
Terms covering use of the free calculators and the limits of the information provided.
Last updated: November 3, 2026
Informational use
Seller Tools Lab provides free calculators and general informational content. The site is not a financial advisor, accountant, lawyer, tax professional, or investment provider.
Your responsibility
You are responsible for the accuracy and completeness of the inputs you use, for verifying formulas and assumptions, and for your business decisions. Results are estimates and may not reflect refunds, taxes, overhead, financing costs, or other factors not entered.
No guarantees
The site does not guarantee profit, ranking, traffic, advertising approval, affiliate acceptance, or any commercial outcome.
Availability
The site may be changed, suspended, or unavailable at any time. External links and third-party services are provided for convenience and are governed by their own terms.
Intellectual property
The site design, original text, and calculator presentation are protected by applicable law. Do not republish substantial portions without permission.
Contact
Questions about these terms can be sent to the site contact address.