Zakat On Savings That Earn Me Monthly Income Not Fixed Deposit
If the Principal amount of your investment is at your disposal, then both the Principal amount and the Profit you receive are subject to Zakat on Asset/wealth at 2.5% once a year on assets in your possession as at the date when Zakat is due. This has to do with the date fixed by the state and in its absence, fixed by you once a year for calculation of zakat on assets and has nothing to do whether one year has passed on those assets or not. Please see for details : Discussion 64264