Delayed Retirement Credits
Delayed Retirement Credits are the permanent monthly benefit increases that a Social Security beneficiary earns for each month they defer claiming past their Full Retirement Age, adding approximately 8% per year to their Primary Insurance Amount for workers born in 1943 or later.
Delayed Retirement Credits represent one of the most compelling return opportunities available in U.S. retirement income planning. For workers born in 1943 or later, deferring Social Security beyond Full Retirement Age earns a credit of two-thirds of 1% per month, which compounds to exactly 8% per year. A worker with a FRA of 67 who defers claiming until age 70 receives three full years of credits, increasing their monthly benefit by 24% above their PIA.
The 8% annual credit is the effective guaranteed return for delaying, expressed as a permanent increase in a lifetime annuity that is also inflation-adjusted via annual COLAs. Because the benefit is guaranteed by the federal government, indexed to inflation, and lasts for the remainder of the beneficiary's life, many retirement income researchers characterize the delayed credit as among the highest-value risk-adjusted returns available to retirees without access to institutional investment markets.
For the 2024 benefit levels, a worker with a PIA of $2,000 at FRA of 67 who defers to age 70 would receive approximately $2,480 per month — a permanent increase of $480 per month relative to claiming at FRA. Assuming a modest COLA of 2-3% annually, the lifetime value of that increment compounded over a 20-25 year retirement is substantial.
Delayed credits do not accrue past age 70. There is no additional benefit for deferring beyond age 70, which establishes the upper bound of the optimal claiming window for workers focused solely on maximizing their own lifetime benefit. Workers in poor health or with low life expectancy projections may rationally claim earlier than age 70, as the break-even period required to recover the foregone benefits during the deferral years may exceed their reasonable life expectancy.
For married couples, the case for the higher-earning spouse to defer to 70 is often particularly compelling because delayed credits also increase the survivor benefit. When the higher earner dies, the surviving spouse steps up to the higher earner's benefit amount. A survivor benefit based on a 70-year-old delayed claiming decision is permanently larger than one based on a 62 or 67 claiming decision, providing ongoing longevity insurance for the surviving spouse.
Delayed Retirement Credits effectively phase out for workers born before 1943, who received lower credit rates. The current 8% rate was established through the Social Security Amendments of 1983 as part of the broader reform package that also gradually raised Full Retirement Age.