A lot of high earners have significant cash sitting in a money market or high-yield savings account right now, and most of them have a reason for it that they have not fully put to the test. There is a version of holding cash that is disciplined, intentional, and exactly right for your situation, and there is a version that is costing you real money every month while still feeling responsible. The question worth asking is a simple one: what is it actually there for?
You are not alone in asking it. According to the Federal Reserve, American investors are holding more than $8 trillion in money market funds, a record high. (Source:Federal Reserve via FRED;Bloomberg) The yield felt compelling enough to stay, and for many families, the story around why the cash is there has never really been examined.
Across the families I sit down with, the rationale for holding significant cash almost always falls into one of three categories. Each one has real logic behind it, and each one also has a version where a better option likely exists.
Reason 1: "The money is earmarked for a large purchase."
This is the most understandable reason of the three, and it is often genuinely correct. If you have a real purchase on the horizon with a defined timeline, holding cash for it can make complete sense, as long as the math still holds. The question really focuses on the timeline.
As an example, a couple came in recently who had been setting aside money for a lake property they planned to buy in five or so years. They were doing a good job with the savings rate, but I asked them one question: Do you think that a lake house is going to cost the same amount in five years as it does today? They laughed and said probably not. If you stay in cash and the property appreciates even modestly, you are not standing still while you wait. You are falling behind, and at that point you have not been saving for a lake house so much as slowly guaranteeing yourself a smaller one, a longer wait, or a gap you will need to cover from somewhere else.
Before assuming cash is the right place to wait, work through these:
Calculate the likely cost of the purchase at a modest annual appreciation rate and compare that figure to what your cash will be worth after taxes and inflation at the same horizon. If your money isn't even keeping up, evaluate alternatives.
Identify which portion of these savings genuinely needs to be fully liquid right now versus which portion simply needs to be available on a known future date. Those are different requirements, and they do not have to live in the same account.
A short-term bond or CD that matures near your target purchase date may give you the same liquidity outcome with a meaningfully better return. If you have not looked at those options recently, the current rate environment makes them worth revisiting.
Reason 2: "I'm holding dry powder to buy the dip."
The logic here sounds excellent in theory. Deploy capital at a discount, improve your long-term position, and buy more when prices fall. All of that is true in principle, but can I let you in on a secret? I rarely see people follow through on this stated plan on their own.
The market drops, there is a moment of opportunity, and then nothing happens. The dip does not feel quite large enough, or the headlines are too unsettling to make buying feel right, or life simply gets busy, and the decision gets deferred. Three months later, the market has recovered and the cash is still sitting in the same account, still waiting for the right moment that never quite arrived. Saying you will buy when the market goes down is a statement of intent, not a strategy, and it almost never translates into an actual transaction unless the plan was built before the downturn, with a specific trigger, a clear target, and a defined execution plan.
Before accepting dry powder as a strategy, test it honestly:
Write down the specific conditions under which you will deploy this cash: the percentage drop, the dollar amount, and the date. Ask whether you would actually have pulled the trigger during the last two market pullbacks. If the answer is no, the plan is not yet a plan.
Consider what a systematic approach would have returned over the past 3 years compared to waiting. The exercise is not about regret; it is about understanding whether the strategy you think you have is the one you are actually executing.
If holding some cash for opportunistic deployment genuinely fits your plan, define exactly how much and commit to a rule for deploying it. A specific written trigger changes the psychology of the decision entirely.
Reason 3: "The yield feels fine right now."
This one deserves a closer look at the actual numbers. At a 34% federal tax bracket, which is common for high earners, a 3.75% money market yield effectively becomes 2.75% after taxes. With inflation running around, say, 3%, the real return on that cash is approximately -0.25% per year.
Your account statement shows a growing balance. The actual value of what those dollars can buy is shrinking every month.
I call this losing money slowly and safely. The erosion is gradual. You do not feel it the way you would feel a bad quarter in your portfolio. You just notice years later that your purchasing power is not what you expected it to be, and by then the window to do something about it has already passed.
The Reality of Inflation
Ten years ago, a cheeseburger cost around $8, and today it costs closer to $13, a 62 percent increase over the same period in which your cash yield covered roughly half of that gap. Inflation compounded until the numbers were noticeably different. There is also a second risk embedded in the yield argument that most families have not accounted for: the rate that made cash feel safe is already declining. The Federal Reserve cut rates through 2024 and 2025, and economists broadly expect further cuts in 2026. The yield on cash-equivalent holdings has dropped meaningfully from its peak, and the gap between what cash earns and what other assets earn is widening as a result. We can't predict the future, but we can frequently re-evaluate the present. (Source:ICI / Kiplinger via Crane Data;U.S. Bank Asset Management)
Before the yield argument settles the conversation, run the actual numbers:
Calculate your after-tax yield at your specific federal bracket, not the headline rate. For most high earners, the number is meaningfully lower than what the account statement implies.
Are we assuming yield levels based on headlines from 6 to 12 months ago? Do we have an updated view of what returns are actually looking like?
For families at higher income levels, tax-advantaged vehicles (a maxed HSA, a backdoor Roth contribution, or a municipal bond fund) may offer a more efficient home for a portion of this capital without taking on inappropriate risk.
Give Every Dollar A Job
More than $8 trillion is sitting in money market funds right now, and a significant portion of it belongs to families who have simply never had this conversation with an advisor. The yield was good enough to stay, the story around why was good enough not to question, and so the question never got asked.
The families who make the most of their cash are not always the ones with the most of it. They are the ones who are honest about three things at once: what the money is for, what the timeline looks like, and what the tax picture means for the real return. Every dollar should have a job, not in a rigid budgeting sense, but in the sense that for every significant chunk of capital you are holding, you should be able to answer clearly what it is doing, why it is there, and what the plan is for it.
Most families who work through those questions with a real advisor find that at least part of the answer surprises them.
If you have meaningful cash on the sidelines and have not worked through this recently, that is exactly the conversation worth having. Send me a message or schedule a time and we can put the actual numbers on the table together.
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