Invoicing, Zakat, and Islamic contracts — one halal platform.
ZakatBooks publishes its methodology openly so that any scholar, imam or accountant can audit how every figure is produced. Transparency about sources matters more to us than a single certification.
Our Zakat calculator follows generally accepted methodology based on AAOIFI Shari'ah Standard No. 35 on Zakat, the calculation principles of the National Zakat Foundation, and nisab guidance and contemporary rulings from the Zakat Foundation of America, alongside classical fiqh works.
The page also explains how nisab and hawl are applied, which assets and liabilities enter the zakatable base, how madhab differences are handled, and how the Halal Business Health Score is calculated.
ZakatBooks provides calculations for guidance; consult a qualified scholar for rulings on your specific situation.