What Is a 401(k) and How Does It Work in 2026?

Question

Understand what a 401(k) is and how it works in 2026. Learn about contributions, tax benefits, employer match, and retirement savings basics.

Priyaa Agrawal · Accepted Answer

In 2026, a 401(k) remains a powerful employer-sponsored tool for building wealth. You choose a percentage of your salary to invest automatically before you even see your paycheck. This "set-it-and-forget-it" method allows your money to grow through compound interest over time.