Social Security Calculator
1970
$
Monthly Benefit$2,280.92
Annual Benefit$27,371.04
Lifetime Benefit (to 85)$492,678.72
Your Social Security retirement benefit is built from your average career earnings and then adjusted up or down depending on the age you claim. This calculator applies the 2024 progressive benefit formula to your average monthly earnings to estimate your primary insurance amount, then reduces it for claiming early or boosts it with delayed-retirement credits for claiming late. It assumes a full retirement age of 67.
Formula
PIA = 0.90·min(AIME, 1174) + 0.32·(portion 1174–7078) + 0.15·(portion above 7078)
- AIME
- Average indexed monthly earnings you enter
- PIA
- Primary insurance amount, the benefit at full retirement age 67
- 1174 / 7078
- 2024 bend points (dollars) where the replacement rate steps down
- adjustment
- Early-claiming reduction or delayed-credit increase applied to the PIA
How it works
- Enter your average indexed monthly earnings and the age at which you plan to claim benefits.
- The calculator computes your primary insurance amount (PIA) with the 2024 bend points: 90% of the first $1,174, 32% of earnings from $1,174 to $7,078, and 15% of anything above $7,078.
- It adjusts the PIA for your claiming age: claiming before age 67 reduces the benefit (about 6.67% per year for the first three years, then 5% per year), and delaying past 67 adds 8% per year up to age 70.
- It then reports your estimated monthly benefit, the annual total, and a rough lifetime total projected through age 85.
Worked example
Average monthly earnings of $6,000 with three claiming ages compared: 62, 67, and 70.
- PIA: 0.90 × 1,174 + 0.32 × (6,000 − 1,174) = 1,056.60 + 0.32 × 4,826 = 1,056.60 + 1,544.32 = $2,600.92.
- At 67 (full retirement age) there is no adjustment, so the monthly benefit is $2,600.92.
- At 62 the reduction is 36 months × (5/900) + 24 months × (5/1200) = 0.20 + 0.10 = 30%, giving 2,600.92 × 0.70 = $1,820.64.
- At 70 delayed credits add 3 × 8% = 24%, giving 2,600.92 × 1.24 = $3,225.14.
Estimated monthly benefit: $1,820.64 at 62, $2,600.92 at 67, and $3,225.14 at 70.
Frequently asked questions
- What full retirement age does this calculator use?
- It assumes a full retirement age of 67, which applies to people born in 1960 or later. If your full retirement age is slightly younger, the early-claiming reductions and delayed credits would be measured from that age instead.
- Why does delaying past 67 increase my benefit so much?
- Social Security adds delayed-retirement credits of 8% for each full year you wait beyond full retirement age, up to age 70. Waiting from 67 to 70 raises the monthly benefit by 24%, after which credits stop accruing.
- How accurate is this estimate?
- It is a simplified projection using the 2024 bend points and standard adjustment percentages. Your actual benefit depends on your full 35-year earnings record, future cost-of-living adjustments, and program rules, so treat the figures as a planning guide rather than an official statement.
- What is the lifetime benefit figure based on?
- The lifetime total simply multiplies your monthly benefit by the number of months from your claiming age to age 85. It is a rough comparison aid and does not include cost-of-living increases or taxation of benefits.