A friend of mine, call him Marcus, turned 52 last year and called me in a mild panic. He had read a headline saying everyone needs $1.5 million to retire, looked at his balances, and decided he was hopelessly behind. So we sat down with his actual numbers. His real spending was nowhere near what that headline assumed, and once we added in his future Social Security, the gap was a fraction of what he feared.
That is the trouble with retirement "rules of thumb." They are built for an imaginary average person who does not exist. Your number depends on what your life actually costs, when you stop working, and how long the money has to last. None of that fits in a headline.
Let me walk you through how to build your own estimate from the ground up, in plain numbers. I spent years reading the fine print on these decisions, and the honest truth is that the math is simpler than the industry wants you to believe.
Start With What You Actually Spend
The single most useful number in retirement planning is not your salary. It is your annual spending. Everything else builds on it.
Pull up a year of bank and credit card statements and add up what you really spent, not what you think you spend. Most people are off by a surprising amount. Say you land on $60,000 a year. That already includes the groceries, the car, the streaming subscriptions you forgot about, all of it.
Now adjust for how retirement changes the picture. Some costs drop: you stop saving for retirement, the commute shrinks, and you might pay off the mortgage before you stop working. Others climb, especially health care and travel in the first active years. A common assumption is that you will need roughly 70 to 85 percent of your pre-retirement spending, but I would rather you build the number from your own statements than borrow a percentage.
Take your real annual spending, then subtract anything that ends at retirement (payroll taxes on wages, retirement contributions, a mortgage you will have paid off). Add a realistic line for health insurance before Medicare and for travel. That adjusted number is the foundation of your plan.
The 4% Rule, and Where It Bends
Once you know your annual spending, there is a famous shortcut for turning it into a target: the 4% rule. The idea is that in your first year you withdraw 4% of your savings, then adjust that dollar amount for inflation each year after. Historically, a portfolio split between stocks and bonds had a strong chance of lasting about 30 years at that rate.
Flip it around and it becomes a quick target. Multiply your annual spending by 25. Need $60,000 a year from your portfolio? That points to roughly $1.5 million. Need $40,000? It is $1 million.
Here is the part the headlines skip. That target is only the slice Social Security and any pension do not cover. If you expect $24,000 a year from Social Security, your portfolio only has to produce the other $36,000. Run that through the same math (36,000 times 25) and your target drops to about $900,000. Same lifestyle, a very different number.
It assumes a roughly 30-year retirement and a balanced portfolio. Retire early at 55 and you may want to plan closer to 3.5% to stretch the money. Retire at 70 and you can often spend a bit more. Treat it as a sturdy starting point you adjust, not a guarantee.
Don't Forget the Income You Already Have
This is where most people scare themselves unnecessarily. They look only at their savings and ignore the guaranteed income waiting for them. Social Security replaces a meaningful slice of pre-retirement income, and for lower earners it replaces even more. If you have never read up on how the benefit is calculated from your highest earning years, it is worth understanding the Social Security basics everyone should know before you finalize any number.
The biggest choice here is timing. Claiming at 62 locks in a permanently reduced benefit, while waiting until full retirement age, or even 70, raises the monthly amount substantially. I have watched people leave a lot of lifetime income on the table by claiming the day they were eligible, so think hard about when you should claim Social Security rather than defaulting to the earliest date.
A Real Example, Start to Finish
Let me make this concrete with a believable household. Picture Dana and Sam, both 60, planning to retire at 67.
| Item | Annual amount |
|---|---|
| Target spending in retirement | $70,000 |
| Combined Social Security at 67 | $42,000 |
| Gap the portfolio must cover | $28,000 |
| Portfolio target (gap times 25) | $700,000 |
Seven hundred thousand dollars is a serious sum, but it is less than half the $1.5 million headline that would have sent them into despair. Notice what did the heavy lifting: their Social Security. By spending less than they earned and claiming at full retirement age, they shrank the portfolio they actually needed.
Had they retired at 62 instead, the math gets harder on two fronts. Their checks would be smaller, and their savings would have to cover more years. That is the quiet cost of an early exit, and it is why the retirement age you pick matters as much as the dollar figure.
Why Starting Early Beats Saving More Later
If your number looks intimidating, the most powerful lever you have is time, not a bigger paycheck. Money invested in your 30s has decades to grow on itself, and that growth compounds in a way that is genuinely hard to catch up to later.
Consider two savers. One puts away $400 a month from age 30 to 40, then stops completely. The other starts at 40 and saves $400 a month all the way to 65. Assuming similar growth, the early saver often ends up with more, despite contributing for fewer years and far less total cash. That is not a trick. It is just how compound interest quietly builds wealth when you give it room to run.
The practical takeaway: capture your full employer 401(k) match first, since that is an immediate return you will not find anywhere else, then keep contributions automatic. Low-cost index funds and ETFs, with expense ratios well under a quarter percent, are a reasonable default core for long-term money.
Common Mistakes That Inflate or Shrink Your Number
A few errors show up again and again, and each one quietly throws the estimate off.
- Ignoring health care before 65. Retire before Medicare kicks in at 65 and you are buying your own coverage in the meantime, which can run many hundreds of dollars a month. Build it in, do not hope it away.
- Forgetting taxes on withdrawals. Money in a traditional 401(k) or IRA is taxed when you pull it out, so a $60,000 lifestyle might require more than $60,000 of withdrawals. Roth accounts, funded with after-tax dollars, come out tax-free, which is why having some of each gives you flexibility.
- Planning for too short a retirement. People routinely underestimate their own longevity. Plan for the money to last into your 90s, not just to average life expectancy.
- Treating one number as fixed forever. Your estimate is a living thing. Revisit it every couple of years as your spending and the rules change.
A pile of money in a traditional 401(k) is not all yours. Depending on your tax bracket, a real chunk goes to taxes as you withdraw it. Set your target in after-tax spending power, not just the account balance.
Turning Your Estimate Into a Plan
So how do you use all this? Start with your real spending, subtract the income from Social Security and any pension, multiply the remaining gap by 25, and you have a working portfolio target. Then sanity-check it against your retirement age and health care timeline.
That number will not be perfect, and it should not be. It is a direction, not a destination carved in stone. For the big, irreversible calls, how to handle a pension lump sum or draw down accounts in a tax-smart order, the stakes are high. That is where a fee-only financial advisor or a tax professional earns their fee. The right answer always depends on your own income, your state, your employer plan, and your goals.
Is $1 million enough to retire on?
It depends on your spending and your other income. Using the 4% rule, $1 million supports roughly $40,000 a year from the portfolio. Add Social Security on top, and for a household with modest expenses that can be plenty. For someone spending $90,000 a year with no pension, it may fall short. Your own numbers decide, not the headline.
Does Social Security count toward my retirement number?
Yes, and it should. Social Security is guaranteed, inflation-adjusted income, so it directly reduces how much your savings have to produce. Subtract your expected benefit from your target spending first, then size your portfolio for the gap that remains. Skipping this step is the most common way people overestimate what they need.
How much should I have saved by a certain age?
A rough industry guidepost is about one times your salary saved by 30, three times by 40, and roughly eight to ten times by your late 60s. These are general benchmarks, not rules. If you are behind, raising your savings rate and capturing your full employer match matters far more than hitting any specific milestone.
The real lesson from Marcus is that your retirement number is yours alone. It comes from your spending, your timeline, and the income you have already earned, not from a scary figure someone put in a headline to get clicks. Run your own math, revisit it as life shifts, and bring in a licensed professional for the decisions that are hard to undo. The number is almost always more reachable than fear makes it feel.
