The way I see it, investment income ( dividends, cap gains etc) is actually part of the withdrawal rate so as long as one is taking something out of one's investments the withdrawal rate would be positive no? If one reinvests everything then withdrawal rate would be zero. If one puts money in from outside sources i.e. work, gifts etc then withdrawal rate would be negative?I'm in a similar situation, investment income more than covers spending. So, my "withdrawal" rate is actually a negative number. My net worth is 25% higher today than the day I stopped working for money. Been ratcheting up the spending and will continue to do so, but don't see my withdrawal rate becoming a positive number ever.