One of the biggest retirement decisions you will make is when to start Social Security. Claim at 62 and you get checks sooner — but permanently smaller. Wait until 70 and your monthly benefit grows by roughly a third. The right answer depends on your health, savings, and life expectancy, and a Social Security Age Calculator is the fastest way to see your full retirement age and what each claiming year means for your payout.
What Is Full Retirement Age (FRA)?
Your Full Retirement Age is the age at which you receive 100% of your primary insurance amount — the benefit you earned through your work history. FRA is not the same for everyone; it is set by your birth year:
| 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 or later | 67 |
Born in 1962? Your FRA is 66 and 10 months. Born in 1970? It is 67. Enter your birth year into the Social Security Age Calculator and it will show your exact FRA plus the earliest and latest claiming ages.
Claiming Early: The 62-to-FRA Penalty
You can claim as early as age 62, but every month before FRA permanently reduces your benefit:
- Claim at 62 with an FRA of 67: benefit reduced about 30%
- Claim 36+ months early: 5/9 of 1% reduction per month
- Claim fewer than 36 months early: 5/12 of 1% reduction per month
- The reduction is permanent — it does not go away when you reach FRA
A $2,000 monthly benefit at FRA 67 drops to roughly $1,400 if claimed at 62. That is $600 less every month for life — about $7,200 less per year.
Delaying: The 70-Year Bonus
Delay past FRA and your benefit grows by 8% per year (2/3 of 1% per month) until age 70, when the credit stops. Using the same example:
| Claiming Age | Monthly Benefit (from $2,000 PIA) | Change vs FRA |
|---|---|---|
| 62 | ~$1,400 | -30% |
| FRA (67) | $2,000 | baseline |
| 70 | ~$2,480 | +24% |
Delaying is effectively buying a guaranteed inflation-adjusted annuity with a built-in 8% annual return — something you cannot get anywhere else in the market.
Break-Even Thinking
The trade-off is simple: claiming early gives you more checks now, but each check is smaller. The break-even point — where total lifetime benefits cross — usually falls in your late 70s to early 80s. If you expect to live past that age, delaying wins. If your health is poor or you need the income now, claiming early can be the rational choice.
How to Use the Calculator
- Select your birth year — the calculator returns your exact FRA
- Compare claiming ages — see the reduction for early claims and the delayed-retirement credit for waiting
- Plan around your numbers — use the result together with your savings balance to decide when to file
Run your birth year through the free Social Security Age Calculator before you talk to a financial advisor — it takes ten seconds and gives you the FRA and claiming-age picture you need for the conversation.

