What a retirement plan has to answer
A retirement plan is a set of linked answers, not a single savings number, and changing one answer moves the others. Working two more years adds two years of saving, removes two years of withdrawals, and can raise a Social Security benefit if you also delay claiming. Retiring before 65 adds years of health coverage to buy before Medicare.
Retirement planning is the largest piece of broader financial planning, which also covers insurance, debt, education and estate goals. A retirement plan covers five things.
- Timing: each person’s last working year, and whether work stops at once or tapers through Semi-Retirement.
- Spending: the budget you expect, which is rarely flat for 30 years; see the retirement spending smile.
- Income: Social Security, pensions, annuities and withdrawals, which together make up your retirement income.
- Taxes: which accounts hold the money and the order you draw on them, since both decide how much of each withdrawal you keep.
- Risk: market losses early in retirement, inflation, health costs and outliving your money.
How to make a retirement plan, step by step
Work in one consistent unit. Most planners state every future amount at today’s prices, so a spending goal, a Social Security estimate and a savings balance can be compared directly. Then work through the steps below, and repeat them at least once a year and after any big change in pay, family, markets or tax law. The first pass is rough; each later pass replaces a guess with a real figure, such as an SSA benefit estimate or a quoted pension.
- Set a target retirement age for each person, and plan to a late age, such as 95.
- Estimate spending from your real budget; an income replacement ratio is only a cross-check.
- Get Social Security estimates at several claiming ages and list any pension or annuity income.
- Subtract that guaranteed income from spending to find the gap your savings must fill.
- Size the portfolio for that gap at a cautious withdrawal rate, then work out the yearly saving needed to reach it.
- Choose retirement accounts: capture any employer match first, then weigh Roth, pre-tax and taxable money for tax diversification.
- Stress-test the plan against bad markets, high inflation and a long life.
Retirement planning by age
The work changes as the date gets closer. Early on, the plan is mostly a savings rate. In the last decade before you stop, it becomes a series of dated decisions, several of them set by law; the table below lists the ages where the rules change.
For 2026 the employee deferral limit for a 401(k), 403(b), governmental 457(b) or the Thrift Savings Plan is $24,500, and the IRA limit is $7,500. Other ceilings, such as HSAs and combined employer and employee money, are covered under retirement contribution limits.
- 20s and 30s: capture any employer match, build the saving habit, and weigh Roth contributions while your tax rate may be low.
- 40s: replace rough goals with a real budget, a Social Security estimate and a savings target.
- 50s: add catch-up contributions, which start at 50. From 2026 they must go in as Roth in a workplace plan if last year’s FICA wages from that employer topped $150,000.
- Early 60s: decide how to cover health care until Medicare at 65 and when each person will claim Social Security.
- After you stop: withdrawals before 59½ usually owe a 10% additional tax unless an exception such as the rule of 55 applies, and required minimum distributions start at 73 or 75.
How much do you need to retire?
The core arithmetic is simple: yearly spending minus guaranteed income is the gap your savings must fill, and the gap divided by a sustainable withdrawal rate gives a savings target. At a 4% starting rate, the idea behind the 4% rule, the target is 25 times the gap.
Three adjustments keep the answer honest. Taxes: money in a traditional 401(k) or IRA is taxed when withdrawn, so a $1 million pre-tax balance does not buy $1 million of spending. Health care: Medicare starts at 65, and for 2026 the marketplace premium tax credit is again limited to households with income between 100% and 400% of the federal poverty level. Uncertainty: a single average return hides sequence of returns risk, so many planners test a plan with Monte Carlo simulations or historical replays rather than one straight line.
Common retirement planning mistakes
Plans rarely fail because of one bad guess. They fail when several optimistic assumptions stack up: a short lifespan, untaxed balances, cheap health care and steady returns. Each error below can be checked with figures you already have, such as your benefit estimate, your account types and last year’s spending. Fixing it usually means writing the assumption down and updating it after a job change, a market drop or a new tax law.
- Planning only to average life expectancy, when roughly half of people live longer and a couple’s second death usually comes later still.
- Treating pre-tax balances as spendable money and forgetting the tax due on every withdrawal.
- Leaving out health coverage between retirement and Medicare at 65, and Medicare premiums after it.
- Claiming Social Security at 62 by default without weighing delayed retirement credits or a surviving spouse’s benefit.
- Assuming spending stays flat, or that it will fall on its own, without checking your own budget.
Illustrative numbers
A one-page retirement plan for a 47-year-old retiring at 67
- Annual spending
- What you expect to spend in the first year of retirement, at today’s prices, including taxes
- Guaranteed income
- Social Security, pensions and annuity payments expected in that year
- Starting withdrawal rate
- The share of the portfolio you plan to withdraw in year one, often 3%–4%
The target is a planning estimate that moves with spending, taxes, retirement age and the withdrawal rate you choose.
Spending goal, today’s dollars$70,000 a year
Social Security at 67, today’s dollars$30,000 a year
Savings target: $40,000 gap × 25$1,000,000
Today’s $300,000 grown 20 years at 4% after inflation$657,337
Shortfall to cover with new saving$342,663
Yearly saving needed for 20 years at 4% after inflationabout $11,500
Saving about $11,500 a year at today’s prices closes the $342,663 shortfall. Taxes on withdrawals, health costs before Medicare, or a weak run of early market returns would each raise that figure.
At a glance
Key retirement ages and what changes at each (2026 rules)
| Age | What changes | Detail |
|---|---|---|
| 50 | Catch-up contributions begin | $8,000 extra in a 401(k), $1,100 in an IRA |
| 55 | Rule of 55 | No 10% penalty on withdrawals from the plan of a job you leave in or after that year |
| 59½ | Early-withdrawal penalty ends | The 10% additional tax no longer applies to IRA or plan withdrawals |
| 60–63 | Larger catch-up | $11,250 instead of $8,000 in a 401(k), 403(b) or governmental 457(b) |
| 62 | Earliest Social Security claim | Benefit cut 30% if full retirement age is 67 |
| 65 | Medicare eligibility | Initial enrollment opens 3 months before the month you turn 65 |
| 67 | Full retirement age | For anyone born in 1960 or later |
| 70 | Delayed credits stop | Benefit reaches 124% of the full amount when full retirement age is 67 |
| 73 or 75 | Required minimum distributions begin | 73 for most people born 1951–1959; 75 if born in 1960 or later |
Put it in your plan
Retirement Planning in MoneyWhatIf
MoneyWhatIf puts a household’s retirement on one timeline: each person’s retirement date, contributions and employer match, Social Security priced at the claiming month you choose, pensions, and the withdrawals that fill any gap, taken in the withdrawal order you set. The 2026 contribution limits, including the age 60–63 catch-up, and IRA income phaseouts cap what each account can receive. Plan Resilience reruns the plan across hundreds of reshuffled historical market paths to show how often it covers every year’s spending, and Goal Plan can search for changes that let you retire by a chosen age.
Common questions
Retirement Planning FAQs
Can I retire with $1 million?
It depends on what you spend and what else you receive. At a 4% starting withdrawal rate, $1 million supports about $40,000 in the first year, raised with inflation after that. Add Social Security: a couple receiving SSA’s estimated January 2026 average for an aged couple, $3,208 a month, would have about $78,500 a year before tax. Pre-tax balances owe income tax on the way out, and retiring well before 65 usually calls for a lower withdrawal rate and adds years of health coverage to buy.
Is a retirement plan the same as a retirement account?
Not quite. In the planning sense, your retirement plan is the whole strategy: when you stop working, what you will spend and how each year gets paid for. At work and in tax law, “retirement plan” usually means a specific arrangement that holds the money, such as a 401(k), 403(b), pension or IRA. Those accounts are tools inside the strategy, and choosing among them is one step of it.
How much should I save for retirement each year?
It depends on your start date, current savings, target spending and expected Social Security, which is why a plan beats a rule. Many planners treat 15% of gross pay, counting any employer match, as a reasonable benchmark for someone starting in their 20s or 30s. Later starters, early retirees and higher earners, whose Social Security replaces less of their pay, usually need more.
Do I need a financial advisor to plan for retirement?
Not necessarily. Many people build a sound plan themselves from SSA benefit estimates, IRS rules and good planning tools. An advisor can help with complex taxes, pensions, equity pay or staying disciplined in a downturn. If you hire one, ask whether they act as a fiduciary at all times and how they are paid.