401k is a code of retirement investment. Therefore, investing in gold with 401k means using and keeping gold for your retirement investment. How to invest in gold with 401k? Although it is possible, some regulations stated in 401k don’t allow individuals to directly invest physical gold. In other words, you must make the investment through a company or platform that has a license for doing so. Besides, it is much better also to follow some steps below so that you can successfully invest in gold for your retirement days.