That probably depends on your individual contract. When it is part of your job to find clients than in general your normal salary is your compensation for doing so. Since in your case it seems to be a very important new client, I would say that you can expect some kind of a "bonus". However that would be only good will of the bank, if you have not got any contractual entitlement. Hope that helps at least a bit... Maybe you just ask kindly a while after the client has signed whether that pays off. Either in financial terms or you ll get promoted a little quicker.