All veterans claiming refunds for overpayments attributable to their lump-sum disability severance payments should write either “Veteran Disability Severance” or “St. Clair Claim” across the top of the front page of the Form 1040X that they file. Because all amended returns are filed on paper, veterans should mail their completed Form 1040X, with a copy of the DoD letter, to:

Internal Revenue Service
333 W. Pershing Street, Stop 6503, P5
Kansas City, MO  64108

Veterans eligible for a refund who did not receive a letter from DoD may still file Form 1040X to claim a refund but must include both of the following to verify the disability severance payment:

• A copy of documentation showing the exact amount of and reason for the disability severance payment, such as a letter from the Defense Finance and Accounting Services (DFAS) explaining the severance payment at the time of the payment or a Form DD-214, and

• A copy of either the VA determination letter confirming the veteran’s disability or a determination that the veteran’s injury or sickness was either incurred as a direct result of armed conflict, while in extra-hazardous service, or in simulated war exercises, or was caused by an instrumentality of war.

Veterans who did not receive the DoD letter and who do not have the required documentation showing the exact amount of and reason for their disability severance payment will need to obtain the necessary proof by contacting the Defense Finance and Accounting Services (DFAS).