How Much Do You Need to Retire? Savings Targets by Age and Spending Level

Ask five people how much you need to retire and you'll hear five very different numbers. One says a million. Another swears by two million. A coworker insists you can do it on $500,000 if you're careful. They're all being sincere, and they can all be right, because the honest answer depends on how much you plan to spend.

That's good news, because it means you don't have to guess at a magic figure. You can build your own number in three steps, then check it against a calculator. Let's walk through it.

Start With Spending, Not a Magic Number

A big pile of savings isn't a goal on its own. Its job is to cover the gap between what you spend and what other income covers. A person who spends $30,000 a year needs a very different nest egg from one who spends $90,000, even if they retire the same day at the same age.

So the cleanest way to answer "how much do I need?" is to work backward from a yearly spending figure. Once you know what you want to live on, the savings target follows from simple math.

Step 1: Estimate What You'll Spend

Start with what you spend now. Pull a few months of bank and card statements and add up everything: housing, food, transportation, insurance, subscriptions, travel, gifts. Then adjust for how life will change. The mortgage might be paid off, and the commute might disappear. On the other side, you may spend more on travel and hobbies, and healthcare can cost more, especially if you retire before Medicare starts at 65.

A rough number is fine to begin with. You can refine it later. Just be honest, since an optimistic budget leads to an optimistic target.

Step 2: Subtract Other Income

Next, subtract the income you expect from sources other than your savings. For most people, the big one is Social Security, but it could also include a pension, rental income, or part-time work. What's left is the amount your portfolio needs to cover each year.

For example, if you plan to spend $60,000 a year and expect $24,000 from Social Security, your portfolio only needs to provide $36,000. That one subtraction can cut the required savings by a third or more.

Step 3: Multiply to Get Your Target

Now turn that yearly gap into a savings target. A popular shortcut comes from the 4% rule: divide your yearly gap by 0.04, which is the same as multiplying by 25. If you want a bigger margin of safety, perhaps because you're retiring early or you're nervous about markets, use a lower rate such as 3.5% or 3.33%, which is the same as multiplying by about 28.6 or 30.

Notice how the target grows quickly as the yearly gap grows. Every extra $12,000 of annual spending that has to come from savings adds roughly $300,000 to $360,000 to the target. That's why trimming spending in retirement is such a powerful lever.

A Worked Example

Let's follow someone I'll call Alex. Alex expects to spend $60,000 a year, with $24,000 coming from Social Security. That leaves a $36,000 gap. At 4%, the target is $900,000. With a more cautious 3.5% rate, it's about $1,029,000.

Now Alex checks the target using a calculator, with withdrawals of $3,000 a month rising 3% a year for inflation. With $900,000, the money lasts about 25 and a half years if returns average 3%, about 36 years at 5%, and indefinitely at 7%. With about $1,029,000, those results improve to roughly 29 years, 44 years, and indefinitely. Alex retires at 65 and wants the money to last to at least 95, so the safer figure looks like the better target.

Age-Based Milestones: Useful, but Rough

You may also have seen savings guidelines tied to age and salary. Widely cited rules of thumb from large retirement-plan providers suggest saving roughly the following multiples of your yearly pay, assuming you plan to retire around 67:

These are helpful as a quick check, but treat them as rough guideposts. They assume typical spending, typical savings habits, and Social Security covering part of the bill. If you plan to retire earlier, spend more than average, or won't have a pension, your own number may be higher. If you have a paid-off home or low expenses, it may be lower.

What If You're Behind?

If your current savings fall short of your target, don't panic. Time is a powerful helper. Here's roughly how much you'd need to save each month to reach $1,000,000 from scratch, assuming a 6% average annual return:

The pattern is clear: starting earlier is dramatically cheaper. Going from 20 years of runway to 10 nearly triples the monthly amount. And a head start matters too. If you already have $100,000 invested and 20 years to go, that balance alone could grow to about $331,000, which cuts the monthly amount needed for $1,000,000 to roughly $1,450.

If the gap still looks big, you have several levers: save more, work a few years longer, delay Social Security, lower your planned spending, or earn some income in the early years of retirement. Even modest changes in several of these at once can close a surprising amount of ground.

Things That Can Change Your Number

• Retirement age. Retiring earlier means more years to fund and fewer years of saving.
• Healthcare. Coverage before Medicare and long-term care needs can be significant.
• Taxes. Withdrawals from traditional accounts are taxed, so you may need to withdraw more than you spend.
• Longevity. Planning to 95 is safer than planning to 85.
• Inflation. Rising prices mean your spending need grows every year.

Test Your Number With a Calculator

Once you have a target, check it. Enter your savings, your yearly withdrawal, and a few different return assumptions. Turn on inflation and see how long the money lasts. If it comfortably covers you to age 95 even in a cautious case, your number is probably solid. If not, adjust the target or the plan.

Try It With Your Own Numbers

Working out how much you need is much easier when you can see the result for yourself. The how long will my money last calculator on this site lets you plug in your balance, your withdrawals, and your assumptions in a couple of minutes, so you can find out whether your savings are on track. It's a simple step that turns a vague worry into a clear plan.

This article is for educational purposes only and is not financial, tax, or investment advice. Projections are estimates based on assumptions, and actual results will vary. Consider talking with a qualified financial professional about your specific situation.