Classical Finance Tools
Khums, Ushr, Jizya and Kharaj — school-specific and historical rulings explained. Pick the tool that matches your situation.
Khums CalculatorSchool-specificKhums with framework first: Ja’fari 20% on annual surplus (sehm-e-Imam/sadat split) vs the Sunni war-booty-only position. Evidence for both.Jizya ExplainedHistorical state levyWhat jizya was: the classical poll tax on able-bodied non-Muslim men under Muslim rule, exemptions, and why it does not apply to you today.Kharaj ExplainedHistorical state levyWhat kharaj was: the classical land tax on state-administered lands (notably Sawad of Iraq under ‘Umar), and why it is history, not a personal due.
❓ Frequently asked questions
Which Classical Finance tool should I use?
Khums, Ushr, Jizya and Kharaj — school-specific and historical rulings explained. Open the tool matching your exact situation — each page explains its evidence and school differences.
How do I start with Classical Finance?
Khums is school-specific (20% on defined gains); ushr, jizya and kharaj pages are educational references on classical rulings. All results are educational estimates, not fatwas.