Affiliate & ad disclosure

Seller Profit Math currently shows no ads and contains no affiliate or referral links. No platform pays us to include, rank or recommend it, and the comparison calculator uses the same method for every platform.

We may add display ads or affiliate links in the future to keep the calculators free. If we do, they will be clearly labeled, this page will be updated first, and they will never change a calculation, fee figure or comparison result.

Seller Profit Math is independent and not affiliated with any marketplace or payment company.

Last updated October 22, 2026.