Every Elenvo Journal article tagged 401k is collected here — 11 guides written for people making real decisions about their money, not for search engines. We cover the mechanics first: what the rules actually say, which forms and deadlines matter, and where the common mistakes cost the most. Most pieces below sit in our 401(k) Basics, Retirement Planning, Investment Strategy coverage. Nothing here is investment advice; it is the background reading we wish everyone had before their next retirement or cash-flow decision.