Answered by Shaykh Ilyas Patel
1. Does it matter if I give a bit more than the exact money I have to give as zakat or does zakat has to be precise?
In the Name of Allah, Most Merciful and Compassionate
1. Yes it is always good to pay an extra amount as a precaution.
2. Credits, money owed to you will be included in the earnings and Zakat has to be given on that money also.
And Allah knows best
– Ilyas