There are all kinds of calculators that mathematically optimize when to start Social Security benefits, but calculators can never factor in intangible factors like work stress, health, family needs, etc. A question I always ask is, "What brings peace and joy without ruining our finances?" For example, with a couple (both 63) I just finished a plan for, the calculator said for the wife to start at full retirement age (FRA) and for the husband to start at 70. However, the wife has several health issues, to the point that she's only worked one 40-hour week in 3 years. Her Social Security benefits were equal to her take-home pay and she constantly came home from work frustrated and exhausted. So I advised her to start benefits immediately. Her current income was inconsequential to their overall plan, so we determined more peace and joy would be had by retiring and starting Social Security. While the numerical factors are important (income streams, portfolio balances, age, etc.), you can't overlook the intangibles.
When advising clients on the optimal time to start Social Security benefits, consider their age, health, financial situation, and retirement goals. While benefits can begin at 62, delaying until age 70 can significantly increase payouts due to delayed retirement credits. Clients in good health may benefit from postponing benefits to maximize their financial outcomes aligned with their overall strategy.