If zakat is paid in advance, the payer must still ascertain on the valuation date that his zakatable property, and therefore his zakat obligation, did not increase after the original payment for which he would still be liable to pay.
If zakat is paid in advance, the payer must still ascertain on the valuation date that his zakatable property, and therefore his zakat obligation, did not increase after the original payment for which he would still be liable to pay.