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Your Social Security benefit isn't fixed — claiming before your full retirement age permanently reduces it, while delaying (up to age 70) permanently increases it.
This calculator estimates your adjusted monthly benefit based on when you plan to claim, using the official SSA adjustment formulas.
How it works
Enter your estimated benefit at full retirement age (from your SSA statement) and your planned claiming age. The calculator applies the SSA's early reduction formula (5/9 of 1% per month for the first 36 months early, then 5/12 of 1% per additional month) or delayed retirement credit (2/3 of 1% per month, up to age 70).
- Enter estimated benefit at full retirement age ($/month).
- Enter age you plan to claim (62–70).
- Click Calculate to see your results.
Examples
$2,000 benefit, claiming at 62
A $2,000 full retirement age benefit claimed at 62 (60 months early) is reduced to $1,400/month — 70% of the full amount.
$2,000 benefit, claiming at 70
The same $2,000 benefit delayed to age 70 (36 months past full retirement age) increases to $2,480/month — 124% of the full amount.
Who should use it
- Deciding when to claim Social Security benefits.
- Comparing the monthly benefit difference between early, full, and delayed claiming ages.
Industry applications
- Retirement planning and financial advising
- Personal finance education
Advantages
- Uses the official SSA early-claiming reduction and delayed-retirement-credit formulas.
- Shows the adjusted benefit as a percentage of your full retirement age amount for quick comparison.
Limitations
- Uses a fixed full retirement age of 67 — actual full retirement age varies slightly for anyone born before 1960.
Common mistakes to avoid
- Assuming the benefit amount on file is fixed regardless of claiming age — it changes significantly based on when you claim.
- Forgetting that delayed retirement credits stop accruing at age 70 — there's no benefit to waiting past that age.
Best practices
- Get your actual full retirement age benefit estimate from ssa.gov rather than guessing, since this calculator's accuracy depends entirely on that starting number.
Tips
- Delaying from 62 to 70 can nearly double your monthly benefit (70% vs. 124% of the full retirement age amount) — a significant, permanent difference worth weighing carefully.