How do you calculate railroad retirement?
Emma Jordan
Published Feb 24, 2026
Tier II benefits are calculated by computing average monthly earnings (up to the annual Tier II taxable maximum—$75,900 in 2008) for an employee’s 60 months of highest earnings. That figure is then multiplied by seven-tenths of 1 percent, and then again by the number of years spent in railroad employment.
How is RRB benefits calculated?
The tier I portion of a railroad retirement annuity is calculated in generally the same way as a social security benefit.
- 90 percent of the first $885 of average indexed monthly earnings, plus.
- 32 percent of the amount of these earnings over $885 up to $5,336, plus.
- 15 percent of these earnings in excess of $5,336.
What percentage does railroad retirement take?
6.20 percent
The railroad retirement tier I tax rate is the same as the social security tax, and for withholding and reporting purposes is divided into 6.20 percent for retirement and 1.45 percent for Medicare hospital insurance.
How to calculate Tier 2 Railroad Retirement Benefits?
In order to figure out your Tier 2 benefit you need this formula as follows: Average of 60 Highest Earnings Months X Years of Creditable Railroad Service X.007 = Tier 2 Monthly Benefit
How is the gross Tier II amount determined?
The formula for the gross tier II amount is 7/10 of 1% of the employee’s average monthly railroad earnings (up to the tier II taxable maximum earnings base) in the 60 months of highest earnings, times the years of service in the rail industry.
What are Tier 1 and Tier 2 taxes?
Tier I taxes are a railroad retirement benefit that is similar to Social Security payroll tax.
How are Social Security and railroad benefits calculated?
There are two parts to Railroad Retirement contributions, which together constitute your benefit amount. These two parts are called Tier I and Tier II. Tier II is the railroad portion of your benefits, and Tier I is the Social Security portion. Benefit calculation is complex but an approximation is possible.
