An often overlooked feature of a Roth IRA is its ability to operate as a de facto emergency fund. Because you’re making contributions with after-tax dollars, you can withdraw those contributions back out without any tax implications. This only applies to the amount contributed, of course, and any earnings on that money have to stay in the account until you can make a qualified distribution. Still, the contribution space allows you to have the peace of mind of a sizable retirement fund that doubles as an emergency fund if you need it to.