When you’re working, you may spend decades contributing to retirement accounts such as your 401(k) and IRA. Once you’re retired, though, you’ll likely need to begin withdrawing from these accounts to help pay for your living expenses. In fact, you’ll be required to take money from them at a certain age — but that age requirement is changing, and it could lead to changes in your financial strategy.

Let’s look at some background behind this development. You put in pre-tax dollars to a t...