Railroad employees do not pay Social Security taxes. Instead of contributing to Social Security through FICA, rail workers pay into a separate federal system under the Railroad Retirement Tax Act, which is administered by the Railroad Retirement Board. The basic tier of that tax matches the Social Security rate and wage base, but rail workers and their employers also pay a second tier that funds a supplemental retirement benefit Social Security doesn’t offer. The result is a substantially larger monthly check in retirement: career railroad retirees averaged $4,310 per month at the end of fiscal year 2023, compared with $1,810 for the average Social Security recipient.1U.S. Railroad Retirement Board. Comparison of Benefits
What Railroad Workers Pay Instead
The Railroad Retirement Tax Act splits payroll contributions into two tiers, plus Medicare. Tier 1 is the direct Social Security equivalent. By statute, the Tier 1 rate equals the combined OASDI rate under FICA: 6.2% from the employee and 6.2% from the employer.2Office of the Law Revision Counsel. 26 USC 3201 – Rate of Tax3Social Security Administration. Contribution and Benefit Base The IRS collects the money but deposits it into the Railroad Retirement Account rather than the Social Security trust funds, and the Railroad Retirement Board uses Social Security formulas to calculate the Tier 1 portion of your benefit.
Tier 2 is the piece that has no Social Security equivalent. It works like an industry-wide pension on top of Tier 1. For 2026, employees pay 4.9% and employers pay 13.1% on compensation up to $137,100.4Railroad Retirement Board. Notice of Annual Rates 2026 Tier 2 rates can be adjusted each year based on the financial health of the Railroad Retirement Account, which keeps the system self-sustaining without drawing on general tax revenue.
Medicare works the same way for railroad workers as for everyone else. Both employee and employer owe 1.45% on all compensation with no earnings cap.4Railroad Retirement Board. Notice of Annual Rates 2026 The statute technically folds Medicare into the Tier 1 rate, since Tier 1 is defined as the sum of Social Security and Medicare rates under FICA.2Office of the Law Revision Counsel. 26 USC 3201 – Rate of Tax It’s usually reported separately because Medicare applies to all wages while the 6.2% OASDI-equivalent portion caps at $184,500 in 2026. Rail employees earning above $200,000 (or $250,000 for married couples filing jointly) also owe the 0.9% Additional Medicare Tax on earnings above those thresholds, with no employer match.5Office of the Law Revision Counsel. 26 USC 3101 – Rate of Tax
2026 Rates at a Glance
- Tier 1 (OASDI equivalent): 6.2% employee and 6.2% employer, on compensation up to $184,500
- Medicare: 1.45% employee and 1.45% employer, on all compensation
- Additional Medicare Tax: 0.9% on employee earnings above $200,000 ($250,000 joint), no employer match
- Tier 2: 4.9% employee and 13.1% employer, on compensation up to $137,100
A worker earning $184,500 or more in 2026 pays a combined 12.55% on the first $137,100 of compensation, then 7.65% on the next $47,400, then 1.45% on anything above $184,500 (plus the Additional Medicare Tax if applicable).
Why the Higher Contribution Buys a Bigger Benefit
The extra Tier 2 tax is the reason railroad retirement benefits run well above Social Security. The Tier 2 annuity is calculated by multiplying 0.7% by the worker’s years of creditable service and their average monthly compensation over the 60 highest-earning months.6Office of the Law Revision Counsel. 45 USC 231b – Computation of Annuities The much larger employer share (13.1% versus 4.9%) reflects the system’s design goal of delivering a substantially stronger retirement than Social Security alone.
The comparison at the end of fiscal year 2023 shows the effect. Career railroad retirees averaged $4,310 per month against $1,810 for the average Social Security recipient. Including all railroad retirees rather than just career employees, the average was still $3,450, nearly double Social Security. Spouses did better too: the average railroad spouse benefit was $1,235 per month versus $865 for Social Security spouses.1U.S. Railroad Retirement Board. Comparison of Benefits A spouse annuity equals 50% of the employee’s Tier 1 amount plus 45% of the Tier 2 amount, and can begin at age 60 if the employee has 30 or more years of service, or at age 62 otherwise.
To be vested for Tier 2, you need at least 10 years (120 months) of creditable railroad service, or at least 5 years (60 months) if all your service occurred after 1995.7Railroad Retirement Board. Railroad Retirement Handbook
What Happens If You Leave the Railroad Before Vesting
Short-service rail workers don’t lose their contributions. If you finish with fewer than 10 years of railroad service (or fewer than 5 years if all service was after 1995), you’re not vested in railroad retirement, and your railroad compensation records transfer to the Social Security Administration. Those earnings then count toward Social Security eligibility exactly like any other covered employment.8Social Security Administration. An Overview of the Railroad Retirement Program Nothing is forfeited; the credits simply move to the other system.
The two systems are also formally integrated for workers who split careers between rail and non-rail jobs, so periods on each side count toward the appropriate benefit.9Social Security Administration. 20 CFR 404.1401 – Interrelationship of Old-Age, Survivors and Disability Insurance Program With the Railroad Retirement Program The Railroad Retirement Board even pays Social Security benefits on behalf of the SSA for railroad employees with at least 120 months of service, or 60 months after 1995.10Federal Register. Payment of Social Security Benefits by the Railroad Retirement Board
If You Qualify for Both a Railroad Annuity and Social Security
A vested rail worker who also earned Social Security benefits from non-railroad work does not collect both amounts in full. The Tier 1 portion of the railroad annuity is reduced by the amount of any Social Security benefit received based on non-railroad earnings.11Railroad Retirement Board. Dual Benefit Payments The reduction prevents duplication, because Tier 1 uses the same formula as Social Security.
Tier 2 is not reduced. It’s funded by taxes that only railroad workers and employers pay, and it stays intact regardless of any Social Security entitlement.11Railroad Retirement Board. Dual Benefit Payments The same dual-entitlement rule applies to spouse and survivor annuities when the recipient is also entitled to Social Security.
When the Railroad Retirement Board calculates the Tier 1 portion for a vested worker, it considers all Social Security-covered earnings alongside railroad compensation. That gives you credit for your full career on both sides while keeping the two benefits from paying twice for the same coverage.