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5 CFR §839.1203

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)The FERCCA allows OPM, in its sole discretion, to compensate you for a monetary loss that is a direct and proximate result of your retirement coverage error.
  2. (b)Monetary losses include payments of additional Social Security taxes, payment of additional retirement deductions, and other out-of-pocket expenses that you incurred because of a retirement coverage error.
  3. (c)You must substantiate your claim for losses with any evidence that supports your request.
  4. (d)OPM cannot pay you for:
    1. (1)Claimed losses related to forgone contributions and earnings under the TSP, other than lost earnings on make-up contributions to the TSP as provided in subpart J of this part; and
    2. (2)Claimed losses related to any other investment opportunities.