#401k

An employer 401(k) match is the only guaranteed 50% to 100% return you will ever be offered, and skipping it is the most expensive money mistake most workers make. Here is how the formulas and vesting actually work.

A traditional 401(k) skips tax now and pays it in retirement. A Roth 401(k) pays tax now and skips it later. The whole decision is a bet on your future tax rate, and for a lot of people the answer is clearer than it looks.