Your payment is based on your earnings record and the age you start collecting
Social Security calculates your monthly payment using three pieces of information: how much you earned during your working years, when you were born, and the age at which you start collecting. The system takes your highest 35 years of earnings, adjusts them for inflation, and converts that into a monthly amount. If you start collecting at your full retirement age (which varies by birth year, between 66 and 67), you receive your full benefit. If you start earlier, the payment is smaller. If you start later, it grows.
The actual math involves formulas that the Social Security Administration applies to your earnings record. You cannot change how much you earned in the past, but you can change when you start collecting, which directly changes your monthly payment for life.
Key Takeaways
- Social Security uses your 35 highest-earning years to calculate your benefit, adjusted for inflation to today's dollars.
- Your full retirement age depends on your birth year and ranges from 66 to 67; collecting before that age reduces your monthly payment permanently.
- Collecting after your full retirement age increases your payment by roughly 8 percent per year until age 70.
- You can view your estimated benefit on your Social Security account online, which shows what you would receive at different starting ages.
The 35-year earnings record and inflation adjustment
Social Security looks back at your entire work history and selects your 35 highest-earning years. If you worked fewer than 35 years, the system counts the missing years as zero, which lowers your average. This is why people who took time out of the workforce—for caregiving, illness, or other reasons—often see a lower benefit than someone who worked continuously.
Once the system identifies your 35 highest years, it adjusts each year's earnings for inflation using a formula called wage indexing. This means a dollar you earned in 1990 is not treated the same as a dollar you earned in 2020. The adjustment brings all your past earnings into today's value, so the calculation is fair regardless of when you worked. The Social Security Administration publishes the wage index factors each year, and they change based on national wage growth.
After adjusting for inflation, Social Security divides your total adjusted earnings by the number of months you worked (420 months, or 35 years) to get your Average Indexed Monthly Earnings (AIME). This single number is the foundation for everything that follows.
The bend points formula that determines your monthly amount
Social Security does not pay you a straightforward percentage of your AIME. Instead, it uses a formula with three segments, called bend points, that replaces a higher percentage of lower earnings than higher earnings. This structure means the system provides more protection to people who earned less.
The formula works like this: you receive 90 percent of the first portion of your AIME (up to the first bend point), 32 percent of the next portion (between the first and second bend point), and 15 percent of anything above the second bend point. The bend points themselves change each year based on wage growth. For 2024, the first bend point is $1,174 and the second is $7,078, but these numbers shift annually.
Here is a concrete example: if your AIME is $3,000, you would receive 90 percent of $1,174 ($1,056.60), plus 32 percent of the amount between $1,174 and $7,078 (which is $1,826 × 0.32 = $584.32), for a total of roughly $1,641 per month at your full retirement age. Someone with an AIME of $6,000 would not receive double that amount—the formula gives them a smaller percentage on the higher earnings.
How your birth year determines your full retirement age
The age at which you receive your full benefit—called your full retirement age or normal retirement age—depends on when you were born. Congress changed this age in 1983, and it now ranges from 66 to 67.
| Birth Year | Full Retirement Age |
|---|---|
| 1943–1954 | 66 |
| 1955 | 66 and 2 months |
| 1956 | 66 and 4 months |
| 1957 | 66 and 6 months |
| 1958 | 66 and 8 months |
| 1959 | 66 and 10 months |
| 1960 and later | 67 |
Your full retirement age is not the earliest age you can collect. You can start as early as 62, but doing so reduces your monthly payment. It is also not the latest age you can collect—you can wait until 70. The age you choose to start determines your payment for the rest of your life, so this decision affects decades of payments.
How starting age changes your monthly payment
If you start collecting before your full retirement age, your monthly payment is permanently reduced. The reduction is roughly 6.7 percent per year for the first three years before your full retirement age, and 5 percent per year for each year before that. Starting at 62 instead of 66 reduces your payment by about 30 percent.
If you start collecting after your full retirement age, your payment increases by roughly 8 percent per year until you reach 70. Waiting from 66 to 70 increases your monthly payment by about 32 percent. This is called delayed retirement credits. After age 70, your payment stops growing, so there is no financial reason to delay beyond that point.
The choice between starting early, at full retirement age, or delaying depends on your health, life expectancy, and financial needs. Someone in poor health might benefit from starting early and receiving payments sooner, even if each payment is smaller. Someone in good health with other income might benefit from waiting and receiving a larger payment later.
How to find your estimated benefit amount
You do not have to do these calculations yourself. The Social Security Administration maintains an online account for every person with a Social Security number. You can create or log into your account at ssa.gov and view your Social Security Statement, which shows your estimated benefit at three different starting ages: 62, your full retirement age, and 70.
The statement also shows your complete earnings record, year by year. This is important because errors in your record directly affect your payment. If you see missing years, years with incorrect amounts, or years where you earned more than the record shows, you can request a correction. Social Security has a time limit for corrections, so it is worth checking your record every few years.
If you do not have an online account, you can request a paper statement by calling Social Security at 1-800-772-1213 or visiting a local office. The statement is free and takes a few weeks to arrive by mail.
Frequently Asked Questions
Does working longer increase my Social Security payment?
Yes, if your recent earnings are higher than some of your earlier years. Since Social Security uses your 35 highest-earning years, adding a new high-earning year can replace a lower-earning year from decades ago. However, if you have already worked 35 years at high earnings, additional work years do not change your benefit unless they are higher than your current 35th-highest year.
What happens to my payment if I did not work 35 years?
Social Security counts the missing years as zero earnings, which lowers your average. If you worked 30 years, the system includes five years of zero. There is no way to remove these zeros after you start collecting, but you can still increase your benefit by working more years before you claim, as long as those years are high-earning.
Can I see how much I would receive if I wait until 70?
Yes. Your Social Security Statement shows your estimated benefit at age 62, your full retirement age, and age 70. You can view this online at ssa.gov if you have an account, or request a paper statement by phone. These are estimates based on your current earnings record and assume you continue working at a similar level until you claim.
Does my spouse's earnings affect my Social Security payment?
Your own benefit is calculated based only on your own earnings record. However, you may be able to receive a separate payment based on your spouse's record if you are married, divorced, or widowed. That payment is calculated differently and has its own rules, but it does not change the amount you receive based on your own work history.
What if I made a mistake on my Social Security process?
If you started collecting at the wrong age or made an error on your process, you may be able to request a withdrawal within 12 months of starting to collect. This is rare and has strict limits, but it is worth asking Social Security directly. Call 1-800-772-1213 to discuss your specific situation with a representative.