Q: Can Zakat be used to help pay off a cousin's debt? The cousin's debt is not to me but to a bank.

A: If your cousin's net zakatablewealth (i.e. zakatable asset - current liabilities due within 1 year) is below the nissab, then you can give him your Zakat to help him pay off his debt.

And Allah knows best!

Mufti Billal Omarjee