When pension $ are requested to be paid back retroactively due to policy change, etc. how are the pay backs treated at tax time. I didn't see any prior year adjustments on the 1099R. Some employees had the option of reducing future pension $ until paid back. Others had the option of paying back lump sum. How would the tax $ be adjusted on the lump sum pay back. Would the 1099R show a reduced gross income in box 1 or would another document be issued for this pay back?