- Principal is one of many companies that manage workplace 401k plans, so a "Principal 401k" is simply a 401k where Principal is the provider.
- The rules of a 401k are the same no matter who runs it: pre-tax or Roth contributions, tax-advantaged growth, and often an employer match.
- The biggest wins come from grabbing the full match, picking low-cost funds, and knowing whether Roth or traditional fits you.
















