Latest / The Financial Freedom Podcast with Fexingo: Quitting Your Job, Living Off Investments, Independence / Why Your Early Retirement Needs a Cash Buffer
Transcript
- Lucas: So we talk a lot on this show about the mechanics of early retirement — withdrawal rates, Roth ladders, bond tents. But there's one tool that feels almost too simple, and I think we've been sleeping on it. Luna: What's that? Lucas: A plain old cash buffer. I'm talking about keeping six to twelve months of living expenses in cash — not invested, not in bonds, just sitting in a high-yield savings account or a money market fund. Luna: But isn't that leaving money on the table? Cash returns are basically zero after inflation. Lucas: Right, that's the conventional wisdom — and in a vacuum, it's true. But the thing is, early retirement isn't a vacuum. You're drawing down your portfolio every single month. And if the market drops in the first few years, selling stocks to fund your lifestyle locks in those losses permanently. Luna: That's the sequence of returns risk we've talked about before. Lucas: Exactly. A cash buffer is basically a shock absorber for that risk. Instead of selling stocks when they're down, you spend from your cash pile. You let the market recover before you start selling again. And that simple mechanic can increase your portfolio's survival rate dramatically. Luna: Do we have numbers on that? Lucas: Yeah, the classic study that gets cited here is from Wade Pfau and Michael Kitces. They ran simulations showing that holding two years of cash reserves — not even a huge amount — reduced the failure rate of a 4 percent withdrawal portfolio from about 10 percent to under 5 percent. And that was for a 30-year retirement. For early retirees looking at 50 or 60 years, the benefit is even bigger. Luna: So the cash buffer isn't about return, it's about not having to sell at the worst possible time. Lucas: Exactly. It's an insurance policy. And like any insurance, it costs you a premium — the foregone returns. But the payoff is that you avoid catastrophic portfolio damage. Luna: Let's make this concrete. What happened in 2022? Both stocks and bonds dropped. That's the worst case for a traditional 60/40 portfolio. Lucas: Great example. In 2022, the S&P 500 fell about 19 percent, and the Bloomberg Aggregate Bond Index fell about 13 percent. So if you had a balanced portfolio and needed to withdraw money, selling either stocks or bonds meant locking in a loss. But if you had a cash buffer, you could just spend from the cash and let your portfolio sit there until it recovered. Luna: And how long did that recovery take? For bonds it's still ongoing, actually. Lucas: Right, bonds haven't fully recovered as of mid-2026. So if you had to sell bonds in 2022, you'd be selling at a loss that might not be recouped for years. Meanwhile, cash never lost value. You just spent it. Luna: How do you decide how much cash to hold? Is it a fixed dollar amount or a percentage of the portfolio? Lucas: There's no single right answer. But a common rule of thumb is one to two years of expenses. If your annual spending is $40,000, you'd keep $40,000 to $80,000 in cash. The bigger the cash buffer, the more protection you get, but the more return you give up. Luna: And you'd refill it when the market goes back up. Lucas: Exactly. You treat it like a bucket. When the market is high, you sell some stocks or bonds to refill the cash bucket. When the market is low, you spend from the bucket. It's mechanical, not emotional. Luna: Where should you keep that cash? I've seen people use high-yield savings, money market funds, or even short-term Treasury bills. Lucas: Yeah, all of those are fine. The key is that it's liquid and safe. A high-yield savings account is probably the simplest — it's fdic insured, you can access the money in a day or two. Money market funds are also good, though they're not fdic insured. T-bills are great too, but you have to ladder them to avoid a liquidity crunch. Luna: One thing I've heard people worry about is that cash loses purchasing power to inflation over time. If you hold two years of expenses, that's a lot of erosion. Lucas: It's a valid concern, but remember — the cash buffer is a small portion of your total portfolio. If you have a million-dollar portfolio and you're holding $80,000 in cash, that's 8 percent. Even if inflation eats 3 percent of that each year, you're losing about $2,400 in purchasing power annually. But the protection it gives you against a market crash can save you tens or hundreds of thousands. It's a cheap insurance premium. Luna: That's a fair way to think about it. So the cash buffer is especially valuable in the first few years of retirement, right? Lucas: Yes, that's the critical window. Sequence of returns risk is highest in the first five to ten years. If the market drops early, you're selling shares at the bottom. If you survive that period, the rest of retirement becomes much safer. So a cash buffer for the first decade, then maybe you can let it shrink. Luna: So you could start with two years of cash, and then after ten years, reduce it to six months or even zero. Lucas: Potentially. Some people keep it forever for peace of mind. And that's fine too. The point is that it's a deliberate choice, not an oversight. Luna: I also want to mention that this isn't just for early retirees. Anyone approaching retirement can benefit from a cash buffer. Lucas: Absolutely. If you're five years from retirement, building a cash buffer is one of the smartest things you can do. It protects you from having to delay retirement if the market tanks. Luna: And for those of us who are already retired, you can build it gradually — maybe by taking a bit less from your portfolio when the market is good and setting that aside. Lucas: Exactly. It's like a savings account for your retirement. You refill it during good times, you draw it down during bad times. Simple, but powerful. Luna: I think one reason people don't do it is that it feels like you're not being 'optimal.' You want every dollar working for you. Lucas: Right. The financial industry sells you on optimization — max return, minimum cash. But real-world retirement is about resilience, not peak performance. The optimal strategy on paper often fails in practice because it can't handle a shock. A cash buffer builds in slack. Luna: That's a great way to put it. And speaking of building in slack, I want to take a quick second to mention something about how this show stays on the air. We don't run ads, and that's intentional — we want to give you straightforward, unbiased advice. But that means this podcast is listener-supported. A small group of our audience chips in each month through buy me a coffee dot com slash fexingo, and that's literally what pays for the production, the research, and keeps it ad-free. Lucas: Yeah, I'm really grateful for that. It means we can spend the time to dig into topics like this without worrying about sponsors. If you find value in these conversations, that's the place to help keep them going. No pressure, just wanted to put it out there. Luna: Okay, back to the cash buffer. One practical question: how do you actually refill it? Let's say you spend $10,000 from your cash buffer. When do you sell stocks to put that money back? Lucas: Good question. The rule of thumb is to refill when your portfolio is above its inflation-adjusted starting value. So if you retired with $1 million, you wait until your portfolio is back above $1 million in today's dollars before you sell to refill cash. That way you're selling high, not low. Luna: That makes sense. What if the market never gets back there? That would be a terrible scenario. Lucas: If the market never recovers, then you have bigger problems. But historically, markets have always recovered within a few years. The worst period for the S&P 500 was the 2000 dot-com crash — it took about seven years to break even in nominal terms. But even then, if you had a cash buffer, you could have avoided selling any stocks during those seven years. Luna: So the cash buffer buys you time for the market to recover. Lucas: Exactly. And that time is incredibly valuable. It's the difference between locking in losses and giving your portfolio a chance to bounce back. Luna: Let's talk about how this interacts with a bond tent. Some people use a bond tent to protect against sequence risk. How does a cash buffer compare? Lucas: A bond tent is a similar idea, but it uses bonds instead of cash. The problem is that bonds can lose value too, as we saw in 2022. Cash doesn't lose nominal value. So a cash buffer is safer, but it also has lower expected return. Some people combine both — a small bond tent plus a cash buffer. Luna: And what about using a home equity line of credit as a buffer? Lucas: That can work, but it's risky. Banks can cancel HELOCs or reduce the credit limit, especially during a financial crisis. So you might not have access to it when you need it most. Cash in the bank is more reliable. Luna: Fair point. So the bottom line: if you're an early retiree or approaching retirement, having some cash on hand isn't a sign of poor planning — it's a sign of smart planning. Lucas: Absolutely. It's one of those counterintuitive things where being less 'efficient' on paper makes you more resilient in reality. And resilience is what matters over a 50-year retirement. Luna: Alright, I'm convinced. Next step for me is to actually build a cash bucket. How about you? Lucas: Same. I'm going to look at my spending and set up an automatic transfer to a high-yield savings account. It's a small change that could make a huge difference. Luna: That's a great note to end on. Thanks for listening, everyone.