📌 Should I invest in my 401(k) or a taxable brokerage account?

Finn

This calculator effectively compares the long-term value of a traditional 401(k) against a taxable brokerage account, helping you weigh upfront tax savings against early access. It adds meaningful formula logic beyond the original view by introducing capital gains tax treatment and early withdrawal penalties. The model simplifies the math by assuming all brokerage growth is taxed at the end, so keep in mind that annual taxes on dividends would create a slight tax drag in the real world. Overall, it provides a clear, actionable bottom line for deciding where to put your next investment dollar.

Reviewed v26.9.0