In Our 40s

The Life Decades Series

This article is part of a series exploring each decade of adult life — the defining lessons, the financial priorities, and what makes each stage unique.

Defining Lessons

Personal Development

Our 40s are often a time for significant personal development. With a wealth of life experience, this decade brings a clearer sense of identity and purpose. Many people find themselves more confident and self-assured, able to make decisions with greater conviction.

Change remains inevitable — shifts in career, relationships, and health may occur. Embracing these changes with a growth mindset can lead to new opportunities. This is also a decade when many discover the satisfaction of mentoring others who are where they once were.

Health & Longevity

Maintaining physical and mental health becomes increasingly important in our 40s. Regular exercise, a balanced diet, and mindfulness practices can greatly enhance quality of life. It is also a time to address any lingering health issues and establish routines that promote long-term wellness — the habits of the 40s shape the health of the 60s and beyond.

Financial Priorities for Your In Our 40s

The 40s are when retirement planning moves from abstract to urgent. You likely have peak earning power — and the window to make meaningful course corrections is still open, but it is narrowing. The decisions made this decade have an outsized impact on retirement outcomes.

1. 1
   Get a comprehensive retirement income projectionProject your Social Security benefits at 62, 67, and 70. Estimate your 401(k)/IRA balances at retirement. Calculate the gap. This number drives everything else. Learn more › Also see ›
2. 2
   Maximize contributions and begin evaluating rollover opportunitiesAt 59½ you can roll an active 401(k) to a higher-performing product without penalty — even while still employed. Start evaluating now. Learn more ›
3. 3
   Shift investments toward lower risk as retirement approachesThe Investment Risk Tiers article shows how allocation should change by decade. You have time to let the shift happen gradually — but it needs to start. Learn more ›
4. 4
   Review and update all estate planning documentsWills, powers of attorney, healthcare directives, and beneficiary designations should be reviewed every 5 years or after major life events (marriage, divorce, birth, death).
5. 5
   Begin Medicaid and long-term care planningThe 5-year Medicaid lookback means planning for long-term care must begin well before you need it. This is one of the most consequential deadlines most people miss. Learn more ›

Also See