The average American can tell you exactly how much they pay to stream Game of Thrones but have no idea how much their 401(k) fees are. (Photo: Shutterstock)

Americans know more about Hulu, Spotify and Netflix fees than they do about those in their 401(k)s.

Yep, it’s true; the average American can tell you exactly how much they pay to stream Game of Thrones or listen to the latest Grammy winner, but has no idea how much it costs them to have a retirement account—and how much it could cost them in retirement funds down the road, when they’ll need that money to live on.

That’s according to a new TD Ameritrade survey, which finds that although 96 percent of people know how much their streaming media services cost each month, only 27 percent know how much they’re paying in fees on those 401(k)s.

In fact, the vast majority are clueless about fees, with 37 percent actually believing they don’t pay any 401(k) fees; 22 percent don’t know if their plan has fees, and 14 percent don’t know how to determine the fees.

But not only are these folks paying fund fees on the investments in their plans, about 95 percent are also paying administrative and other fees, since many employers pass some, or all, of those costs on to plan participants.

To help participants become more savvy about the fees they pay, TD Ameritrade has teamed up with fintech firm FeeX, Inc. to help retirement savers quickly analyze their 401(k) fees.

The result, a free 401(k) fee analyzer tool powered by FeeX, allows them to find out what they’re paying in fees for their 401(k), 403(b) or other defined contribution plans.

The tool analyzes overarching administration fees, as well as individual fees for the mutual funds within the plan, so that individuals see a detailed view of their specific investment holdings and plan services fees.

Users can then use that to conduct an objective, side-by-side comparison of the fees associated with their 401(k) account(s) versus other potential fees in an IRA.

The survey also finds that nearly three-quarters of 401(k) owners left an account behind at an old job, with 31 percent ending up rolling it over into a new employer’s plan and 34 percent putting those funds into an IRA.

Many who roll funds over into a new boss’s plan do so because they think it’s cheaper—those fees again—but that’s not necessarily true. Institutional pricing on funds can make IRAs cheaper; it depends on what’s in both plans.

Of course, 22 percent of those who take a new job end up leaving their 401(k) funds with their former employer, but that doesn’t necessarily mean they’ve checked out the alternatives to see whether an IRA might serve them better on fees.

And 13 percent of workers just cash out their plan when they leave the job, and that could cost them a lot more in taxes and penalties—not to mention lost opportunities for retirement earnings. They, too, might make other choices if they had the chance to compare account costs.