March 30, 2017 18:36 Updated Follow You should use your Form 1099-R when completing your tax returns. Go to the Internal Revenue Service (IRS) website here for more information. Related articles What is a 1099-R form? Why will my PERF or TRF monthly joint and survivor benefit amount decrease if I retire later? What new services from INPRS are available in 2018? What is the Pension Relief Fund? What is the 66-2/3 Percent Survivor Benefit retirement option?