The 50/30/20 rule was built for steady paychecks, not business owners juggling variable income, self-employment taxes, and blurred expense lines. Fifty-eight percent of self-employed adults say their income varies month to month (Federal Reserve 2025). Instead of forcing a cookie-cutter formula, try the Priority Percentage Method, a layered approach that fills tax, operating, owner's pay, emergency, and savings buckets in order of priority.