How much can I safely spend in retirement?

Most people asking this want a percentage. Somebody handed them one years ago and they'd like to know whether it still holds. I usually get it as a flat question. Is the four percent rule antiquated?

Here's the honest version. A percentage is an output. It falls out of facts about your household that a webpage can't see, starting with what you actually spend. And the thing that makes a spending number safe isn't the number you opened with. It's whether you've decided, ahead of time, what you'll do on the day it stops fitting.

Almost nobody arrives with that second part. It's most of the job.

A rule of thumb carries somebody else's assumptions

The old rules all work the same way. Take a slice of your balance each year, hold it steady, and the money is supposed to last as long as you do.

The idea underneath is sound. Take a sane slice, don't take a crazy one. That part holds up.

What doesn't hold up is everything the rule quietly assumed on your behalf. It assumed a retirement of a certain length, and people are living longer than that. It assumed a tax picture. It assumed inflation would behave. And it never asks how the money is invested, which is one of the biggest things in the room.

So it's a fine place to open a conversation. It's a poor place to end one, because the assumptions it was built on aren't yours.

A percentage of what, and measured on which day

Here's the gotcha, and I wish I could sit down with everybody about to retire and say it out loud. We've had good markets for a few years, so most people haven't had to find this one out yet.

Say you settle on a slice of your balance and start living on it. A year later the balance is different. It's always different.

So a percentage of what?

If markets fall hard and you're in year two of retirement, sitting well below where you started, you should probably be thinking about that withdrawal. Of course there are situations where you'd adjust. The real questions arrive right behind that one. How often do you look? How big a swing before you actually do something?

Adjust monthly and you get exquisitely sensitive to noise. You'll trade long-term growth for short-term comfort, because you'd rather not change this summer's vacation budget. That feels responsible in the moment and it causes problems later. Wait too long and the correction you eventually make has to be enormous.

A rule of thumb has no opinion about any of that. Which is why it was never the answer.

Guardrails mean nothing changes until something actually changes

There's a phrase I love for this. If you don't want to gain weight, don't have cookies in the cabinet. You set up your environment so you're more likely to succeed, and then you don't have to win the same argument with yourself every month.

Guardrails are that idea pointed at spending. You set a band on either side of where your plan says you should be. Above the top of it or below the bottom of it, we have a conversation about what you're spending. Anywhere in the middle, rest easy and don't pay attention. It's noise.

That last part is the whole point. People assume ongoing advice means constant tinkering. What it mostly means is doing nothing on purpose, and doing nothing turns out to be right far more often than it feels like it should be.

You see where you sit against those lines at every check-in. So a conversation about easing off is never a surprise, and neither is permission to spend more.

Give the dollars jobs, and the rest can be left alone

Two filters decide how any dollar gets invested. The first one everybody knows, which is how much volatility you can carry without shooting yourself in your own foot. The second gets skipped constantly. How long does this particular dollar have before somebody spends it?

Thirty years out, that answers itself. Near retirement it gets genuinely nuanced, because some of your dollars are about to be spent and some of them have decades left. A few will outlive you. The day after you're gone, that money doesn't get spent, and it still has decades of work in front of it.

So we give the dollars jobs. A couple of years of income sits somewhere very stable. The next eight or ten years live in something more traditional and balanced. Money you know you won't touch for fifteen years can be invested like you're young again. Almost everybody we work with uses some version of this, and I've written up how it stacks in the three buckets.

A retired client asked me once why so much of his money was sitting in cash and short-term notes earning very little. Fair question, and it deserved the cost first. Money parked in cash instead of invested gives up real return in an average year, and on a meaningful balance that's a number you can say out loud and wince at. It should feel that penal. We do it anyway.

The reason is the order things happen in. Most downturns are over within a few years. What turns a downturn into permanent damage is selling into it because you need to eat. A bad market in your first years of retirement does damage that the same market at seventy-eight doesn't. The stable slice is what buys you the ability to not sell, and that's what lets the guardrails hold instead of getting overruled by your nerves. There's more under sequence of returns risk.

Your spending is lumpier than the model, and travel is usually why

The standard curve says you spend more for ten years, then less, then less again. Real life is choppier than that. The first three years often run high. Year four is quiet. Year five is expensive again because of a trip, or a vehicle, or a roof.

Travel is the variable that actually moves the number for most households, and it's genuinely hard to predict your own appetite for it until you're living it. I'm a fan of spending more early and easing down as you go, while you're healthy enough to enjoy it. Plan around a range. Revisit it. Expect to move your month-to-month number more than once, because your life is going to change and what you spend money on will change with it.

That's also why I'd rather set up a comfortable monthly baseline plus one or two planned lump sums a year than send one big flat amount every month. People actually use the lump sums. It works like a gift basket. You might not have bought everything in it for yourself, but now that it's in your hands, you'll enjoy it. With one big monthly number, careful savers quietly rebuild a savings account they no longer need and the trip money never gets spent.

The number in front of the number

Before any of this works, somebody has to know what you actually spend.

Most people can name their monthly number within a small margin and figure that's close enough. Stretched across a thirty-year projection it stops being close enough, and the gap changes what the plan says you're able to do. Most of the work I do on this question runs backwards from there. Somebody tells me what they need to live on each month, and we work out what has to be true for that to hold.

The input is one honest accounting, done once, including the irregular things that never show up in a normal month. It isn't a restriction exercise. The households who've done it walk into retirement steadier, because the number they're living on is a number they recognize.

I'd hold the output loosely even then. People want a projection to work like algebra. Put this much in, get exactly that back. I can run that math and so can a calculator, and the answer comes out looking far more precise than it really is. Nobody knows how long you'll live, what inflation does across thirty years, or what your health asks of you at eighty. It's closer to a physics problem, where the honest output is a range with its assumptions said out loud. My guess is you'll land somewhere inside it. The plan's job is to keep noticing where.

Running out isn't the only way this goes wrong

We talk about failure in retirement as running out of money before you die. Passing away with too much is also a failure, if it means you skipped things you wanted to do while you were healthy enough to do them.

Old you would look back and say, so what if there's money still sitting there at ninety-two. I should have taken the trip.

Most people who have money have it because they didn't spend it. That habit doesn't switch off when the paychecks stop, and it's usually the thing standing between somebody and the trip they keep not taking. Somewhere in retirement you need a different layer of permission, because there are only two places the money ends up. You spend it, or somebody else inherits it. I've sat with clients in their late eighties who'd give up a great deal to go back to their sixties and take one more trip with a son or a daughter. That math is worth doing in your head now, while you can still act on it. There's more on the upper line of the band in permission to spend.

Some of this isn't about money at all. I sat down once with somebody a few months from retiring who'd hired me for the real questions, and I asked what they were going to do on that first Monday. We spent ninety minutes on it and never got back to the money. They'd never been asked. That one has its own page.

The questions that come next

Is the four percent rule antiquated?

As a rule, I think so. As an opener, it's fine and I'd let you start there. It came out of assumptions about how long retirement lasts, what taxes do, and how the money's invested, and your assumptions aren't those assumptions. The useful move is to replace it with a number built on your own picture, then attach the lines that tell you when to move it.

What if I retire right into a bad market?

That's the scenario the stable slice exists for. If you can spend from money that didn't fall, you aren't forced to sell the money that did, and the recovery gets to happen without you funding groceries out of it. Hard to say how long any particular stretch runs, which is exactly why you hold a few years of it instead of a few months.

Can I spend more in the early years and less later?

Often, yes, and I'd rather you plan it that way on purpose than discover it by accident. Travel is usually what people want front-loaded, and it's usually the thing they can't predict about themselves. Build the higher early number in. Then set the line that tells you when to ease off.

Does the number change once Social Security starts?

It should. A benefit replaces part of what the portfolio was carrying, so the portfolio's job gets smaller that year. The tax side moves too. How much of the benefit counts as taxable income depends on how much other income you have, and it tops out at 85 percent of the benefit (IRS Publication 915). Whether to bridge the gap out of savings first is its own decision, and it belongs in the same conversation as this one.

What happens when required withdrawals start?

They put a floor under what comes out. For most people that's generally the year you turn 73, though someone still working in a workplace plan they don't own a large stake in can often wait until they retire (IRS). After that the government has an opinion about your withdrawal rate whether you invited one or not. Worth seeing years ahead, because the years in front of it are usually the flexible ones.

Go find the number in front of the number

Start there. One honest accounting of what you actually spend, irregular things included, done once.

Then write down the two lines that would send you back to the question, before you need them. Then decide which dollars have which job, and how long each one has to live.

None of that gets settled in sequence. What you spend, how it's invested, and what it does to your tax bill all press on each other, so they get decided together, at one table. The order you pull from is part of the same conversation, and that one's here.

A percentage is where the question starts. The plan is what tells you when to move it.

If you want a second set of eyes on your own number, an Explore Call is a short conversation about what's on your mind.

Keep exploring

Related reading on this site: Retirement paycheck three buckets, Permission to spend the upper guardrail, What is sequence of returns risk?, Retirement withdrawal order which account first, What will my life actually look like when i retire?.

When it helps, the free Retirement Paycheck Guide walks through the pieces in plain English, and you can start with a no-pressure Explore Call any time.

Sources

• IRS Publication 915, Social Security and equivalent railroad retirement benefits
• IRS: retirement plan and IRA required minimum distributions FAQs

For discussion purposes only. This is general education and it isn't individualized investment or tax advice. Spending rates, account types, and tax treatment depend on your own facts, so review the decision against your full picture with the right professional before you act on it.