Assuming you were retired at the end of 2018, if you did not receive an RMD in 2018, then you must receive the 2018 RMD by 4/1/2019. Once you receive the 2018 RMD in 2019, the next distribution you receive will be the 2019 RMD. Any RMDs or other distributions are taxed in the year they were distributed and you will receive a 1099R form reporting the distributions. Therefore, it sounds like you did not receive any distributions in 2018, and therefore will not be reporting any TSP distributions on your 2018 return.
This reply was modified 2 years, 8 months ago by Alan S..