The question of can I use TSP to invest in gold plan is a common question of people concerning TSP. The TSP itself, is a thing that federal employees and military members of the US use to secure their retirement life in the future. It offers a set of plans to choose from them. The fund is very close to the so-called 401(k) plan of private workers in the US. Many people want to invest their TSP fund in gold because of the possible outcome of it. Is it possible to do that kind of thing?