This document discusses using zakat, an Islamic wealth tax, to help finance sustainable development goals in Kenya. It asks whether religious funds from zakat can be included in development finance under Kenya's legal system. While Kenya's legal system separates law and religion, the author argues that applying human rights principles can bring fiscal systems together for a common purpose. This would allow the Kenyan government to expand its revenue base through zakat and take a more inclusive approach to development finance. The document examines operational challenges of the legal/religious interface and whether zakat payers' redistributive actions could support fiscal activism to mobilize more domestic revenue.