How Much Cash Should You Hold at Retirement? The Exact Rules of the Income Floor

The question retirees ask most

How much cash do I need to hold at retirement to be safe? The answer is two to three years of withdrawals. Hold much more and the opportunity cost bites; hold less and you can't ride out a bear market.

This is the question that comes up every week in my coaching. And most people treat cash as just an emergency stash — they don't realize it's a strategic asset that can decide whether retirement succeeds. So let me lay out the income floor with exact numbers and rules.

Why two to three years specifically

The core reason: that's almost exactly how long the average bear market lasts and recovers.

The historical data shows the average bear market takes about 13 months from peak to trough. Recovery back to the prior high typically needs another year or two. Add it up and you get roughly two to three years from peak to full recovery.

So if you hold two to three years of withdrawals in stable assets, you can fund your living expenses from that pool — not from stocks — across the entire decline-and-recovery window. You never sell stocks at depressed prices. That's the whole point. The income floor isn't a return-generating asset; it's closer to insurance that buys you the right not to force-sell equities during a bad sequence.

What goes in it

The income floor holds only assets that don't lose value when the market gets crushed.

Specifically: cash, money market funds, and short-duration Treasuries like T-bills. Two common mistakes trip people up here. First, mistaking long-duration bonds for safe assets — they fall hard when rates rise, so they don't belong in the floor. Second, using dividend stocks as a floor substitute because "holding cash feels wasteful" — dividend stocks are still stocks and drop in a crash alongside everything else. The floor's job is stability of value, not yield.

How you fill and refill it

Refilling the floor runs on the calendar and the numbers, not on emotion.

The rule is simple: after any year where the S&P 500 finishes positive and your equity portfolio is at or above its prior-year starting balance, you sell enough stock to top the floor back up to its target. That's it. Sell into strength, buy stability — the exact opposite of what a panicked retiree does.

Conversely, in a down year, you draw from the floor and never sell stocks. Then you refill in the next year that recovers. This way your withdrawal timing is set by a pre-defined rule, not by your fear or greed.

The decisive difference the floor makes

The income floor alone can flip an entire retirement outcome.

Wade Pfau's analysis shows it clearly. That 1966 retiree who went broke before 80 — if they had simply held enough cash to skip withdrawals in the four worst years following downturns, they'd have ended 30 years later with around $4 million instead of zero. Four skipped years of withdrawals.

And the thing that lets you skip those withdrawals is precisely the income floor. That's why I push every client to hold at least two to three years of cash.

FAQ

Q: Isn't 4% the standard withdrawal rate? Why calculate with 5%? A: Most planners say 4%. But with real clients, early-retirement spending tends to run higher than expected — first-time travel, healthcare deductibles, helping out the kids. 5% is closer to what people actually withdraw in the real world. And with a proper income floor and bucket sequencing, you can often pull a little more than that.

Q: Doesn't holding too much cash hurt me to inflation? A: It does, which is why you cap it at two to three years. Beyond that the opportunity cost grows. The floor isn't money that sits idle for decades — it's a buffer that carries you through the recovery window and gets recycled as you refill it in bull years.

Q: If I have the income floor, do I still need the glide path and bucket sequencing? A: The three are strongest together. The floor absorbs the first shock, the glide path lowers your risk at the entry point, and bucket sequencing turns "which bucket do I draw from" into a rule. Leave any one out and you open a gap in the defense.