About FreelancePay

FreelancePay builds free, accurate calculators for freelancers and self-employed workers: social security contributions (cuota de autónomos in Spain, recibos verdes in Portugal), self-employment tax in the US, and more.

Every calculator is backed by a tax model maintained for the current tax year, with figures verified against official sources (Seguridad Social, CIRS/CIVA, IRS). Tax rules change every year — we update the parameters without changing the code.

The site is monetized by advertising and affiliate links to services we genuinely recommend for freelancers (Wise for international payments, FreshBooks for invoicing, Qonto for business banking).

Questions or corrections? Contact us.