Why are you asking everyone, you need to sit down with your business partner and address all of the points made above, ie about one working harder than the other, how many hours you put in, holidays how many days each, cash if you are going to take any then equal split etc, get it sorted now as bet he will be thinking the same. If you can't aproach h about this then you don't want to be a partner with him and its a bit late to find out when you have bought in. Sort it out now