Vivian Tu says investors carrying credit card debt need to stop and pay it off first. The math says she's right

Vivian Tu has built a massive online following telling people how to grow their money. But she has a message for some would-be investors: Stop investing, at least for now, if you carry a specific kind of debt.

The former Wall Street trader and content creator behind multimedia company, "Your Rich BFF," says you should jump on high-interest credit card debt before thinking about putting money into the stock market.

Jeff Bezos backs a platform that lets anyone invest in rental homes for as little as $100 — 6 ways to build wealth like a landlord without actually being one

Dave Ramsey warns nearly 50% of Americans are making 1 big Social Security mistake. Here's what it is and 3 simple steps to fix it ASAP

Millionaires under 43 hold only 25% of their wealth in stocks. Here's where their money is actually going

During a recent episode of her Net Worth and Chill podcast, Tu answered a written question by a listener about how they can balance investing with paying down credit cards and student loans.

"I am a little alarmed because it sounds like you're already starting to invest while still having credit card debt," Tu said. "You should not be investing. You still need to pay off that credit card debt."

In the same episode, Tu said that "the best day to start investing was yesterday, but the second best day is today."