Insurance sales, tax preparation, personal financial advising, and investment fund management are careers in which workers can be self-employed. Which careers have the highest and lowest self-employment rates? Insurance sales has the highest rates, and tax preparation has the lowest rates. Personal financial advising has the highest rates, and investment fund management has the lowest rates, Investment fund management has the highest rates, and insurance sales has the lowest rates. Tax preparation has the highest rates, and personal financial advising has the lowest rates.