A Retirement Timeline by Age

Retirement planning is not one decision but a series of them spread over forty years, and the most useful action changes with each decade. This chapter sets out what tends to matter most in each stage of a working life, and the ages at which federal rules change what you can do. Wherever you are starting from, the next step is the same: work out where you stand and pick the action that matters most now.

Your twenties: set up the habits

In the early working years, incomes are usually at their lowest and time is at its most valuable. As chapter 1 showed, money saved now has the longest time to compound, so even modest contributions carry a lot of weight.

What tends to matter most:

• Join the workplace plan and get the full match. If you are automatically enrolled at a low rate, check whether that rate earns the whole match.
• Build a small emergency fund, so a car repair does not end up on a credit card.
• Consider Roth contributions. If your tax rate is low now and likely to rise with your career, Roth 401(k) or Roth IRA contributions lock in today's rate on money that may grow for decades.
• Choose a simple, stock-heavy investment such as a target-date fund, and leave it alone through market falls.
• Avoid cashing out an old 401(k) when changing jobs; roll it over instead (chapter 5).

Your thirties: raise the rate as income rises

Pay often rises through this decade, and so do costs: housing, children, care. The risk is that spending absorbs every raise.

• Raise your contribution rate with each pay increase, ideally using an automatic yearly increase. Splitting each raise between spending and saving keeps the savings rate moving up.
• Clear high-interest debt, which competes directly with retirement saving.
• Revisit traditional versus Roth. As your income rises, traditional contributions may start to make more sense (chapter 4). If your income is approaching the Roth IRA range, note the 2026 phase-out starting at $153,000 for single filers and $242,000 for married couples filing jointly.
• Protect the income that funds the plan. Disability and life insurance matter most when others depend on your earnings. The Insurance shelf of the library covers both.

Your forties: check the target against reality

For many people the forties are the peak earning years, and also the point at which retirement becomes concrete enough to measure.

• Compute your number. Use chapters 2 and 3 to estimate spending in retirement and the portfolio it needs, then compare it with what you have and what you save.
• Aim to reach the 401(k) limit if you can. For 2026 the employee limit is $24,500. Reaching it is not realistic for everyone, but every increase shortens the remaining time.
• Check your investment mix and costs. A portfolio that has drifted, or one paying high fees, costs more in this decade because balances are larger.
• Watch competing goals. Paying for children's education is important, but there are loans for college and none for retirement. Many planners suggest keeping retirement saving on track first.

Your fifties: catch-up contributions

From the year you turn 50, federal rules allow you to save more.

• 401(k), 403(b), governmental 457(b) and Thrift Savings Plan: an extra $8,000 a year in 2026 on top of the regular limit.
• Ages 60 to 63: a higher catch-up of $11,250 applies instead, in the years you are 60, 61, 62 or 63 at the end of the year. At 64 it returns to the age-50 amount.
• IRA: an extra $1,100 a year.

A new rule applies to higher earners. If your Social Security wages from the employer that sponsors the plan were above $150,000 in the previous year, your 401(k) catch-up contributions must be made as Roth contributions. Plans apply this from 2026 under a good-faith reading of the law, with the final IRS regulations formally taking effect from 2027. If your plan has no Roth option, higher earners may not be able to make catch-up contributions at all, so check with your plan.

Extra saving late in a career still moves the date.

With $400,000 saved and $2,000 a month going in, a target of $1,250,000 is about 15.8 years away. Raising the monthly amount to $2,700, an increase close in size to the age-50 catch-up spread across a year, brings it to about 13.7 years.

This is also the decade to plan the transition: when you might stop, what health insurance would cost before Medicare, and how your accounts will turn into income. Chapter 7 covers that last question.

Your sixties: the transition

The years around retirement are when the most decisions arrive together.

• Decide when to claim Social Security. It is one of the largest financial decisions most people make, and Volume 2 on this shelf covers it in depth.
• Arrange health coverage. Medicare eligibility starts at 65. The initial enrollment period runs for seven months: the three months before the month you turn 65, that month, and the three months after. Missing it can mean a lasting late-enrollment penalty for some parts, unless you have qualifying coverage through your own or a spouse's current job. Volume 2 covers the details.
• Reduce the risk of a bad start. A large market fall just before or after retirement does the most damage (chapter 7). Many retirees hold a few years of spending in cash and bonds by this point.
• Plan your withdrawals. Decide which accounts to draw from first and how much, before the first paycheck stops.

The ages that change the rules

These ages come up again and again in retirement planning.

For someone whose full retirement age is 67, claiming at 62 pays 70% of the full benefit for life, and waiting until 70 pays 124%. Those percentages come from the Social Security Administration's published rules, and the Social Security break-even calculator shows how the trade-off works with your own figures.