分步说明
Gather Your Earnings History
First, gather your earnings history for the past 35 years. You can obtain this information from your Social Security Statement or by contacting the SSA. Make a list of your annual earnings for each year.
Calculate Your Average Indexed Monthly Earnings (AIME)
Next, calculate your AIME by indexing your earnings to the current year. You can use the SSA's indexing factors to do this. Then, calculate your average monthly earnings by dividing your total earnings by the number of years.
Apply the Formula to Calculate Your Primary Insurance Amount (PIA)
Now, apply the formula to calculate your PIA. Use the AIME calculated in step 2 and apply the bend points to determine your PIA.
Adjust Your PIA for Retirement Age
Finally, adjust your PIA for your retirement age. If you retire at 62, your benefit will be reduced by 30%. If you retire at 67, your benefit will be full. If you retire at 70, your benefit will be increased by 8% per year.
Calculate Your Monthly Benefit
Now, calculate your monthly benefit by dividing your adjusted PIA by 12. This will give you your estimated monthly benefit at your chosen retirement age.
Worked Example
Let's say John has an AIME of $6,000 and wants to retire at 67. His PIA would be: (0.9 x $926) + (0.32 x ($5,785 - $926)) + (0.15 x ($6,000 - $5,785)) = $2,643. His monthly benefit would be: $2,643 / 12 = $220.25. If John retires at 62, his benefit would be reduced to: $220.25 x 0.7 = $154.18. If John retires at 70, his benefit would be increased to: $220.25 x 1.28 = $281.72.
Introduction to Social Security Calculator
The Social Security Calculator is a tool used to estimate your US Social Security retirement benefit. It takes into account your earnings history and retirement age to provide an estimate of your monthly benefit at different ages. In this guide, we will walk you through the steps to calculate your Social Security retirement benefit manually.
Understanding the Formula
The Social Security Administration (SSA) uses a complex formula to calculate retirement benefits. The formula involves calculating your Average Indexed Monthly Earnings (AIME) and then applying a formula to determine your Primary Insurance Amount (PIA). The PIA is then adjusted based on your retirement age to determine your monthly benefit.
Formula
The formula for calculating AIME is: AIME = (Total Earnings / Number of Years) x Index Factor
The formula for calculating PIA is: PIA = (0.9 x First Bend Point) + (0.32 x Second Bend Point) + (0.15 x Third Bend Point)
Where:
- First Bend Point = AIME up to $926
- Second Bend Point = AIME between $926 and $5,785
- Third Bend Point = AIME above $5,785