i fully retired at the end of 2016. my old employer received a refund of insurance premiums where the insurance company overcharged. these overcharges were during my time of employment so I received a portion of this refund. I received a company check for the refund due to me in november of 2019. My old employer reported this refund in the form of a W-2 for the year 2019. Obviously, i was not an employee in 2019. Is a W-2 the correct way for my employer to report this income/refund to the IRS?
