If you’re receiving FERS disability retirement and SSDI, you can receive both benefits, but they don’t simply get added together. Social Security pays its benefit separately, while OPM reduces the FERS disability annuity during months when you’re also receiving SSDI. The amount of that reduction changes after the first year.
How the FERS Disability Offset Works
For a FERS employee who qualifies for disability retirement before age 62, OPM generally calculates the initial disability annuity at 60% of the high-3 average salary.
During the first year, the FERS annuity is reduced by 100% of the SSDI benefit for months in which you’re entitled to both benefits.
After the first year, the FERS calculation generally changes to 40% of the high-3, while the SSDI offset drops to 60% of the SSDI benefit. OPM also says the disability annuity cannot be reduced below the employee’s earned annuity. So the effect of FERS disability retirement and SSDI can look very different in year one than it does later.
Why the SSDI Approval Can Change Your Numbers
FERS disability retirement and SSDI don’t necessarily begin at the same time. If Social Security approves an SSDI claim later and establishes entitlement for months when you were already receiving FERS disability retirement, OPM may need to recalculate your FERS benefit for those overlapping months.
That can create an overpayment.
The problem can become particularly noticeable when SSDI includes retroactive benefits. Money that arrives from Social Security may cover months when OPM was still paying the unreduced FERS disability annuity. The eventual FERS adjustment can therefore involve months that have already passed.
That’s why anyone waiting on an SSDI decision should keep the approval notice, payment records, and benefit calculations rather than assuming a retroactive payment is entirely available to spend.
You Still Have to Apply for SSDI
FERS disability retirement applicants generally must apply for Social Security disability benefits or establish that they aren’t eligible. That doesn’t guarantee an SSDI award. Social Security applies its own disability and work requirements.
The important distinction is that an SSDI denial doesn’t necessarily mean you weren’t eligible for FERS disability retirement. The two programs have different standards.
What Happens at Age 62?
OPM generally recomputes a FERS disability annuity at that point as if the employee had continued working until age 62, including additional credit for the period spent receiving disability retirement.
That means the benefit you receive when disability retirement begins isn’t necessarily the benefit you’ll receive permanently.
For anyone navigating FERS disability retirement and SSDI, the important numbers aren’t just the initial FERS payment and the potential SSDI benefit. The timing of SSDI approval, the offset formula, and the age-62 recomputation can all change the amount you actually receive.
For more information, reach out to a Federal Retirement Consultant (FRC®) who can help give you a clear picture of what your retirement income might look like.
