The interest rate on your savings account isn't the full story.

There's a real tax cost hiding behind it, and the amount depends on your income, your state, and your situation.

The accounts many people assume are the safe, smart choice don't hold up once taxes actually enter the picture, and the ranking shifts again the moment your income, your state, or your life stage changes.

If you're tired of guessing where your cash should sit, join Bill Harris in the first episode of Money Lab.

Former CEO of PayPal and Intuit, founder of Personal Capital, he's spent three decades building the financial technology that's now behind Evergreen.ai, the free tool running the numbers.

Try the calculator yourself at evergreen.ai/cashtaxes.

Should you buy the house? Exercise your stock options? Convert an IRA to a Roth? Retire early?

Money Lab takes one real financial decision at a time and puts it to the test using Evergreen.ai’s free financial planning tools, working through the numbers, tradeoffs and variables that can change the answer.

Host Bill Harris, former CEO of PayPal and Intuit and founder of Personal Capital, has spent more than three decades at the intersection of money and technology.

Follow Money Lab now to catch the first episode when it launches.