<prompt> Human: Hi everyone. Im just curious to hear your thoughts on this subject. After all of your financial obligations, costs and discretionary spending, what is a good percentage of income per month to have leftover?  <response>: As much as possible is really the only reasonable answer here. It also varies dramatically by income level, its much easier to have half of your income left over if you make 200k versus 20k. This page details how different savings levels will impact your ability to retire early, if youre so inclined.If you want a more detailed answer, post your income and expenses for people to go through and we can help figure out if theres any changes you can make to bump your savings up. 