If you are trying to figure out how to plan for retirement, start with the decisions your money has to support—not with a magic savings number. A useful retirement plan connects what you want retirement to look like, what it may cost, what income you already have coming, how much you still need to save, how the money is invested, and how you will eventually turn it into spendable income.
That sounds obvious. In practice, it is where a lot of retirement plans fall apart. People can have a 401(k), an IRA, Social Security estimates, and a decent investment portfolio and still not have an actual plan. They have pieces.
After nearly three decades around financial planning, the question I find more useful is this: Are you building a plan for retirement, or just a pile of cash?
Quick Answer
A retirement plan should answer five connected questions: What will retirement need to pay for? What income and savings will cover it? How should the money be invested? How will Social Security, healthcare and taxes change the timing? And how will you turn the portfolio into income without taking more risk than the plan can handle? If one answer changes, revisit the others.
Step 1: Decide What Retirement Needs to Pay For
Before you pick an account or argue about whether you need $1 million, $2 million, or some other round number, define the retirement goals and life the money is supposed to fund.
One question I used with clients was: At what age would you like going into work to become optional? That turns “retirement” from a vague finish line into a planning date. Then put a rough spending number behind it.
Start with expected housing, food, transportation, travel, healthcare and medical expenses, taxes, insurance, family support, and the fun stuff you actually want retirement to include. Some work expenses may disappear. Other costs may rise. The U.S. Department of Labor’s Retirement Toolkit makes the same basic point: compare what you have saved and what Social Security may provide with what you expect to spend, while you still have time to adjust.
Rules of thumb such as “25 times annual spending” can be useful for a first estimate. They are not a retirement verdict. A target based on spending can change when Social Security, a pension, part-time work, taxes, healthcare, or your planned retirement age or retirement date changes.
Use retirement rules of thumb as starting points, not commandments
You will see retirement planning articles argue over the 25x rule, the 4% rule, a 3% withdrawal rule, and other shortcuts as if one number has to win. I think that is the wrong fight. The 25x rule is a rough way to translate spending into an accumulation target; the 4% or 3% rules are withdrawal-rate starting points. They answer different questions, and none replaces a plan built around your actual income, taxes, healthcare, time horizon and flexibility.
Michael’s Take: The Number Is the Output, Not the Plan
If your only retirement question is “What’s my number?”, you are skipping the more important work. Two households with the same portfolio can need very different amounts because their spending, guaranteed income, taxes, healthcare and retirement dates are different.
Use the saving for retirement calculator to turn those assumptions into a first projection. Then treat the result as something to test, not something to worship.
Step 2: Map Your Income, Savings, and the Gap
Once you have a rough spending target, inventory the retirement savings and income resources already working for you: workplace retirement plans, individual retirement accounts (IRAs), taxable investments, cash, pensions, Social Security, and any income you expect to keep earning.
The point is not to collect account names. It is to answer a simpler question: How much of the retirement job is already funded, and what gap is left?
That gap tells you whether your next move is mainly to save more, work longer, spend less, change the retirement date, improve the investment plan, or some combination.
How much do you need to save for retirement?
There is no universal retirement-savings number. Estimate what you expect to spend, subtract dependable income such as Social Security or a pension, compare the remaining need with the retirement savings you already have, and then solve the gap with contributions, time, spending choices and reasonable investment assumptions. That is more useful than starting with a headline that says everyone needs the same $1 million, $2 million or percentage of pre-retirement income.
Know what job each retirement account is doing
Ignore retirement planning strategies that begin by declaring one account “best” before they know the job. A workplace 401(k) or 403(b) may bring an employer match and higher contribution capacity. A Traditional IRA or Roth IRA can offer different tax timing and investment flexibility. A taxable investment account can provide liquidity without retirement-account withdrawal rules. Those are different tools, not competing trophies.
If the immediate question is which account to prioritize, use the Roth IRA vs. 401(k) comparison. Here, the bigger point is that account choice should support the retirement plan—not become the plan.
Use 2026 contribution limits as capacity, not a goal
For 2026, the IRS says the employee deferral limit for 401(k), 403(b), governmental 457 plans and the Thrift Savings Plan is $24,500. The IRA contribution limit is $7,500.
| 2026 limit | Amount | What it means |
|---|---|---|
| 401(k), 403(b), governmental 457 and TSP employee deferral | $24,500 | Maximum regular employee elective deferral, subject to plan rules. |
| Age-50+ catch-up for most of those plans | $8,000 | Additional catch-up capacity for eligible participants. |
| Age 60–63 higher catch-up | $11,250 | Higher catch-up limit applies in place of the regular $8,000 catch-up for eligible participants who reach ages 60–63 during 2026. |
| IRA contribution | $7,500 | Combined annual contribution limit across your Traditional and Roth IRAs, subject to eligibility rules. |
| IRA age-50+ catch-up | $1,100 | Additional IRA contribution capacity for eligible savers age 50 or older. |
Those are ceilings, not personalized savings targets. Your useful number is the amount your plan requires and your cash flow can support.
If your employer offers a match, check the actual formula in your plan materials or Summary Plan Description. A dollar-for-dollar match on the first 5% of pay, for example, is different from a 50-cent-on-the-dollar match. In either case, not contributing enough to receive a match you are eligible for can mean leaving employer compensation on the table.
There is also a 2026 catch-up wrinkle worth knowing if you are nearing retirement: the IRS catch-up guidance says participants in applicable plans with Roth features generally must make catch-up contributions on a Roth basis in 2026 when prior-year wages from that plan sponsor exceeded $150,000.
See where the assumptions put you
A projection is useful here because it forces the pieces onto the same page: current savings, contributions, time, return assumptions, inflation and retirement spending. Change one input and watch what happens to the gap.
Retirement Funding Gap Projector
Compare a constant-return savings projection with the portfolio estimated to support your retirement spending gap through a selected planning age.
Modeled Retirement Funding Comparison
Portfolio Projection in Today’s Dollars
How to interpret this scenario
Important cautions
Assumptions used
This calculator provides a deterministic educational illustration. It does not predict investment returns, lifespan, inflation, Social Security, pension benefits, taxes, medical costs, long-term-care expenses, or retirement success.
The model assumes the reliable income entered begins at retirement and maintains its purchasing power. Actual Social Security and pension start dates, cost-of-living adjustments, taxes, survivor provisions, and payment rules may differ.
The required-portfolio estimate uses a constant real return and level inflation-adjusted spending through the selected planning age. Actual markets do not produce constant returns, and poor returns early in retirement can materially change sustainability.
Use consistent tax treatment when entering spending and income. Do not compare after-tax spending with gross Social Security, pension, or account-withdrawal amounts without accounting for taxes.
This tool provides general financial education, not individualized financial, investment, tax, legal, Social Security, pension, or retirement-planning advice.
If You’re Behind, Fix the Gap—Not Your Ego
Being behind is a diagnosis, not a strategy. You have a small set of levers: save more, retire later, lower the spending target, earn income longer, or change how the plan is invested within a risk level you can actually tolerate.
The dangerous shortcut is trying to make a savings gap disappear by taking investment risk you cannot afford. Use the projection to identify the gap first. Then change the lever that fits your real life.
Step 3: Build an Investment System You Can Stick With
Your retirement account—such as a 401(k), individual retirement account (IRA), or another tax-advantaged account—is the container. The investments inside it determine how the money participates in markets.
The broad job is to choose a diversified mix of investments that fits your time horizon, need for growth, ability to absorb losses, and other income resources. Then make the system simple enough that you can stick with it when markets get ugly.
Target-date funds can be a useful one-fund option because they diversify across investments and generally shift toward a more conservative mix as the target year approaches. But “pick the year and forget it forever” is too casual. The SEC’s Target Date Funds Investor Bulletin says investors should still examine the fund’s glide path, fees, overall asset allocation and whether the fund fits their situation. A target-date fund does not guarantee enough retirement income.
As retirement gets closer, the investment question changes. You are no longer investing only for a far-away balance; you are preparing a portfolio that may soon need to fund withdrawals. That’s when retiree asset allocation strategies become more relevant than a generic accumulation portfolio.
You Can’t Steer a Parked Car
Don’t spend six months designing the perfect retirement spreadsheet while doing nothing. Get a reasonable contribution and investment system moving, then improve it as your numbers become clearer. You can’t steer a parked car. Get moving first, then adjust your course.
Step 4: Coordinate Social Security, Healthcare, and Taxes Before the Retirement Date
This is where a pile of accounts starts becoming a retirement plan. Social Security, Medicare, taxes and portfolio withdrawals affect one another, so they should not be decided in separate rooms.
Milestone Ages Are Checkpoints, Not a Retirement Plan
Retirement articles love milestone ages because they make easy headlines: age 62 for early Social Security eligibility, age 65 for Medicare for most people, and age 70 when delayed Social Security retirement credits stop increasing your benefit. Those ages matter. None of them tells you when you personally should retire, claim Social Security, or start drawing from your portfolio.
Social Security is a timing decision, not just an age
The Social Security Administration says retirement benefits increase for each month you delay claiming beyond full retirement age, and delayed retirement credits stop at age 70. For people born in 1943 or later, the delayed credit is 8% per year. That does not mean waiting to 70 is automatically best for everyone. Longevity, cash flow, spouse or survivor benefits, taxes and other income can change the decision.
If Medicare premiums are part of the decision, the interaction can get more complicated. The dedicated Social Security timing and IRMAA guide handles that narrower tradeoff.
Healthcare belongs in the retirement budget before retirement
Do not wait until the month you stop working to ask how coverage will work. If retirement happens before Medicare eligibility, you need a bridge. Around Medicare age, enrollment timing and premium rules enter the picture. The Department of Labor retirement toolkit deliberately combines retirement-plan, Social Security and Medicare planning because those timelines overlap.
Taxes belong in the same conversation. Withdrawals from pre-tax Traditional retirement accounts are generally included in taxable income; Roth accounts follow different tax and distribution rules; required minimum distributions can later force taxable withdrawals from certain tax-deferred accounts. The right mix is less about finding one “best” account and more about preserving options for future years.
Step 5: Build the Retirement Paycheck—and Stress-Test It
Accumulation asks, “How much can I build?” Retirement income asks, “How much can I spend, from which account, in what order, and what happens when markets or life don’t cooperate?”
The 4% rule and similar rules of thumb can be useful starting references. They are not promises. Your withdrawal plan has to account for portfolio risk, inflation, taxes, longevity, large one-time expenses and how much flexibility you have to reduce spending after a poor market year.
This is also where sequence-of-returns risk becomes practical. A bad market early in retirement can hurt more when you are selling investments to fund spending at the same time. The answer is not to predict the next bear market. It is to build enough liquidity and flexibility that every down year does not force the same response.
What This Looked Like With a Client
I had a client retire just before the financial crisis. The useful part of the plan was not that we predicted 2008—we didn’t. It was that near-term spending did not depend on selling stocks at the worst point in the downturn. That is the kind of job a retirement-income plan should do: give you choices when markets stop cooperating.
For the mechanics of taxable distributions, required minimum distributions and retirement-account withdrawals, use the retirement plan distribution and withdrawal guide. This page’s job is to make sure that distribution strategy connects back to the retirement plan instead of living as a separate tax exercise.
Retirement Planning Mistakes That Matter
Most retirement-planning mistakes are not caused by one terrible investment. They happen when one part of the plan is optimized without checking what that decision changes somewhere else.
- Treating a balance as a plan. A $1 million account balance says nothing by itself about spending, Social Security, taxes, healthcare or how long the money must last.
- Using a rule of thumb as a rule of law. The 25x rule, 4% rule and age-based allocation formulas can be useful starting points. They still need your actual facts.
- Optimizing one piece in isolation. A tax move that looks smart on its own can affect Medicare premiums, portfolio liquidity or future taxable income.
- Waiting for perfect information. You will never know future returns, inflation or lifespan. Build a plan that can be updated instead of waiting for certainty that does not exist.
- Never revisiting the plan. The Department of Labor recommends checking a retirement plan at least annually. A major job change, market move, health event, inheritance, divorce or retirement-date change can justify another look sooner.
Retirement Planning FAQ
What are the main steps in planning for retirement?
Define what retirement needs to fund, map current income and savings against that goal, build an investment system, coordinate Social Security/healthcare/taxes, and create a withdrawal plan that can survive changing markets and spending.
What is the 25x rule for retirement?
It is a rough rule of thumb that multiplies an annual spending need by 25. It can help create a starting estimate, but it does not automatically account for Social Security, pensions, taxes, healthcare, changing spending or the exact retirement date.
What is the $1,000-a-month rule for retirement?
Rules that translate a desired monthly retirement income into a rough savings target are shortcuts, not personalized plans. The actual portfolio required for an extra $1,000 per month depends on the withdrawal rate, retirement horizon, investment returns, inflation, taxes and whether the income needs to last for one life or two.
When should I start planning for retirement?
As early as practical, because time creates more options. But “I should have started earlier” is not a strategy. If you are behind, start with the gap you have today and work the available levers: savings, retirement date, spending, investment risk, account choices and future income.
The Bottom Line: Connect the Decisions
The internet can give you dozens of retirement rules. What it cannot do with a slogan is connect your life, spending, accounts, Social Security, healthcare, taxes and withdrawals into one system.
That is the job of a retirement plan.
Start with what retirement needs to pay for. Measure the gap. Put a savings and investment system behind it. Coordinate the decisions that happen near retirement. Then build the paycheck and stress-test the whole thing.
A pile of cash can look impressive. A plan tells you what the cash is supposed to do—and what you will change when reality doesn’t follow the spreadsheet.
