how do i calculate my residual income 
if you are applying for a loan your residual income is the amount of money you have to spend after all of your monthly obligations have been paid this is also called discretionary income if you are planning your long term future residual income takes on a different meaning it is the amount of money you generate or plan to generate in the future from passive sources such as dividends and interest the bottom lineresidual income is not free money it requires an upfront investment of money hard work or sweat equity but once that work is completed a stream of income has been established that takes little or no effort to maintain 