This article investigates whether exchanging Social Security delayed retirement credits, currently paid as increases in lifelong benefits, for a lump sum would induce later claiming and additional work. We show that people would voluntarily claim about 6 months later if the lump sum were paid for claiming after the early retirement age, and about 8 months later if the lump sum were paid only for those claiming after their full retirement age. Overall, people will work one‐third to one‐half of the additional months. Those who would currently claim at the youngest ages are most responsive to the lump sum offer.