Delaying Social Security benefit claims until age 70 substantially increases an individual's monthly payout—and creates a proportionally higher long-term cost for the system through compounding cost-of-living adjustments (COLAs) on a larger base benefit.

For individuals born in 1960 or later, the full retirement age (FRA) is 67. Claiming at 70 yields a monthly payment equal to 124 percent of the FRA amount, the result of delayed retirement credits that add 8 percent per year for each year benefits are deferred past FRA.

Those enhanced benefits then receive annual COLAs applied to the higher initial payout. A larger base benefit produces a greater dollar increase from each COLA, compounding the system's payment obligations over a retiree's lifetime and adding pressure to the Old-Age and Survivors Insurance (OASI) Trust Fund.

The Social Security Administration's 2024 Trustees' Report projected the OASI Trust Fund can pay 100 percent of scheduled benefits until 2033. Without congressional action, the fund would then cover only 79 percent of scheduled benefits. The rising trend of delayed claims adds to that long-term solvency challenge.

SSA data show a rising share of beneficiaries choosing to delay. In 2022, 10 percent of new male retirees claimed at age 70, up from 4 percent in 2000. For women, the figure rose to 9 percent in 2022 from 3 percent in 2000.

The shift reflects rational financial planning. Retirees delay claims to maximize guaranteed lifetime income, particularly given rising longevity. Longer lifespans mean more years of higher, COLA-adjusted payments, transferring a larger portion of retirement risk to the federal system.

Each additional beneficiary claiming at 70 represents a greater financial commitment from the system than one claiming at FRA or earlier. That dynamic adds a structural component to the overall funding deficit.

President Trump and Treasury Secretary Scott Bessent face the ongoing challenge of ensuring Social Security's long-term stability. Policy discussions around benefit adjustments, tax increases or changes to the FRA tend to focus on headline numbers, while the compounding effect of delayed claims receives less scrutiny.

The next Social Security Trustees' Report, expected in mid-2027, will provide updated projections on Trust Fund solvency and will incorporate the growing preference for delayed claiming as a key variable.