Core Insights - The article discusses the complexities of determining when individuals can stop saving for retirement, emphasizing that it is not a one-size-fits-all scenario [1][2]. Group 1: Retirement Number - The first step in retirement planning is to ascertain the "retirement number," which is the amount needed to retire comfortably. This is calculated by dividing expected annual spending by a withdrawal rate of 4% to 5% for an average retirement duration of 30 years [3]. - Experts at T. Rowe Price suggest that a 40-year-old should have saved 1.5 to 2.5 times their salary, while a 50-year-old should have saved 3.5 to 5.5 times their salary [4]. Group 2: Savings and Net Worth - The second variable to consider is a person's savings or net worth, which includes savings accounts, retirement accounts, and other assets like home equity [6]. Group 3: Expected Returns - The expected returns on investments are estimated to be around 6%, although this conservative figure can be adjusted to ensure sufficient savings even if actual returns fall short [7].