401(k) Retirement Planning
Learn how contributions, employer matching, time, and investment return can affect a 401(k) retirement balance.
A 401(k) can combine employee contributions, employer contributions, tax advantages, and long-term investment growth. The amount available at retirement depends on contribution history, investment performance, fees, plan rules, withdrawals, and taxes.
Key points
- Capture the employer match when it fits your situation
- Know the annual IRS contribution limits
- Review vesting rules for employer money
- Choose an asset allocation you understand
- Track fees and investment options
- Coordinate 401(k) savings with IRA and taxable accounts
How this fits into retirement planning
For 2026, the IRS announced an employee elective-deferral limit of $24,500 for most 401(k), 403(b), governmental 457 plans, and the federal Thrift Savings Plan, before applicable catch-up provisions.
Official sources
Use current guidance from the Social Security Administration at ssa.gov and the Internal Revenue Service at irs.gov for rules that apply to your situation.
401(k) Calculator
Use the 401(k) Calculator to compare financial scenarios with clear inputs, assumptions, and results.
Educational estimate only. Actual outcomes, taxes, fees, market returns, lending terms, and retirement benefits can differ.