Self-made millionaire Ramit Sethi advises young professionals to invest 10% of their salary each year and increase this by 1% annually to become multimillionaires.
He recommends starting with low-cost index funds, which diversify investments across a wide range of companies, and have lower costs than actively managed funds. Sethi emphasizes the importance of beginning early to benefit from compound interest.
For those who find 10% too steep, he suggests starting with what they can afford and gradually increasing the amount. Starting investments early, particularly from one's first job after college, sets a foundation for long-term financial growth.