Some people regret their decision to claim Social Security early, well before their full retirement age (FRA). Fortunately, a "do-over" option is available. It's called "claim-suspend-restart"—CSR. Social Security allows you to change your mind once during the first year of receiving benefits, but you have to pay back everything you've already claimed that year.
If you claimed early and now have the financial resources to reconsider, you can still potentially boost your annual or monthly benefit by up to 24% by suspending your Social Security for 1 to 3 years after you reach your FRA. If you have longevity in your genes and have the financial resources to pay for expenses from sources other than Social Security, this retirement income strategy could significantly boost your lifetime income.