Planners About

Approaching Retirement Planner

A guided walk-through of the years before you stop working, in the order the questions come: your 401(k) at the age you stop, Social Security at three claim ages, and when required minimum distributions start. One set of your own numbers is carried from stage to stage, and every calculation runs in this browser.

Your plan so far

Your choices appear here as you go.

Stage 1 of 5

Where do I stand?

When was I born, what do I earn, and what is in my 401(k) today?

You

year

The year you were born; every rule in this planner follows it

$ / year

Your gross pay before tax

$

What your employer plan holds today

Your timeline

  1. Age — —

    Today

    Where you stand now

  2. Age — —

    Earliest Social Security

    Benefits can start, at a reduced amount

  3. Age — —

    You stop working

    The age you entered; contributions end

  4. Age — —

    Full retirement age

    Your full Social Security benefit

  5. Age — —

    Social Security at its highest

    Waiting longer adds nothing more

  6. Age — —

    Required distributions start

    The first one is due

Why a birth year, not an age

The planner keys every figure to the year you were born, because the rules it uses follow your birth year: your full retirement age for Social Security, the bend points in your benefit formula, which are set for the year you turn 62, and the age your required minimum distributions start. An age typed today would be out of date next January; a birth year stays true.

Your salary does two jobs here. Your 401(k) contributions and any employer match are percentages of it, and the Social Security estimate uses it as a stand-in for your covered earnings, counting each year only up to that year’s taxable maximum, the wage base. Your 401(k) balance is what the account holds today.

Sources: SSA Benefit Formula Bend Points (read May 7, 2026); SSA Contribution and Benefit Base table (read July 6, 2026)

What this means for you

Your figures, in plain words, appear here.

Go deeper

Assumptions applied

How this planner calculates

  • Your age. The rule year less your birth year. Every stage reads this one age.
  • 401(k) at the age you stop. The same projection as the 401(k) Calculator: each year until you stop, your contribution and your employer’s match are added within the IRS limits for the rule year, and the balance grows at your return. If you are already past the age you stop, the balance stays as it is.
  • Social Security. The same estimate as the Social Security Calculator, run once for each claim age: a simplified average of your indexed earnings from your salary, the bend points for the year you reach the earliest claim age, the cost-of-living adjustments announced since, and the reduction or credit for the age you claim.
  • RMD start age. Set by your birth year in the law (26 U.S.C. 401(a)(9)(C)(v), as the SECURE 2.0 Act amended it), as the RMD Calculator applies it. For people born in 1959, where the law’s two age clauses overlap, the planner assumes 73.
  • First RMD estimate. Your balance at the age you stop, carried to December 31 of the year before your first distribution year at the same return, compounded once a year, with no contributions or withdrawals, then divided by the Uniform Lifetime Table’s period for your age in that first year.

Planning the Years Before Retirement

Three questions tend to arrive together in the last decade or so before retirement: what the 401(k) will hold when you stop working, what Social Security will pay and at what age to start it, and when the IRS starts requiring withdrawals. Each has its own calculator on this site. This planner takes them in order with one set of your numbers, so the answer to one question carries into the next.

What This Planner Calculates

It starts with your birth year, salary and 401(k) balance, projects the balance to the age you stop working, estimates Social Security at three claim ages side by side, and shows the age your required minimum distributions start with an estimate of the first one. It ends with a plan you can print: the figures, the choices you made and the assumptions behind them.

Key Concepts

Full retirement age is the age Social Security pays your full benefit. It is set by your birth year. Benefits that begin before it are generally reduced, and each month of waiting after it earns a delayed retirement credit until 70.

Required minimum distributions are yearly withdrawals the IRS requires from traditional retirement accounts from your start age. The amount is the balance at the end of the previous year divided by a distribution period for your age.

Catch-up contributions let people aged 50 and over put more into a 401(k) than the base limit, where the plan offers them.

Frequently Asked Questions

It depends on your birth year. The IRS sets age 73 for people born from 1951 through 1958, and the law sets 75 for people born in 1960 or later. For people born in 1959 the law's two age clauses overlap, so the start age depends on how that is resolved; this planner assumes 73 for them. It shows your start age, the first year a distribution is required, and an estimate of the first one.

Retirement benefits can start at 62. Under SSA's regulations, benefits are generally reduced if they begin before full retirement age, and each month you wait past full retirement age earns a delayed retirement credit, about 8% a year, until 70. This planner works out all three ages with your birth year and salary and marks none as the better one, because health, other income and a spouse's benefit also bear on the choice.

It depends on your balance today, what you and your employer contribute, the years left and the return you assume. This planner projects it year by year within the IRS contribution limits for 2026 and shows how much came from contributions and how much from growth. The return is an assumption, not a forecast.