Generating a sustainable full-time living solely from the investment interest of a five-hundred-thousand-dollar portfolio is challenging and depends heavily on your annual living expenses and prevailing economic conditions. Utilizing a conservative four percent safe withdrawal rate yields approximately twenty thousand dollars per year in pre-tax income, which falls below average living costs in many developed regions unless supplemented by other income sources or deployed in countries with significantly lower cost-of-living structures. Inflation, taxes, and market downturns further impact the long-term viability of relying entirely on this capital sum.