401(k) vs Roth Calculator – Which Leaves More After Tax

Result

After tax, over 30 years

Roth comes out ahead by $15,143

Traditional 401(k)

$929,465

Account after tax
$736,794
Invested tax saving
$192,671

Roth

$944,608

Withdrawn tax free

The traditional side includes the tax you save now (about $2,400 a year) invested in a taxable account, which is the like-for-like comparison. Its growth is taxed, which is why Roth can still win at equal tax rates.