How much of a FIRE portfolio should be in bonds?

It depends far more on where you are in the timeline than on your age. During accumulation with a decade or more to go, many FIRE investors run 90-100% equities and that is defensible, because bonds mainly protect against a risk you are not yet exposed to. In the five years either side of your retirement date — the sequence risk zone — a meaningful bond and cash allocation, commonly 20-40%, does real work. Many plans then reduce it again over the following decade.

What is the difference between Treasury bonds, TIPS, and I-bonds?

Treasuries pay a fixed nominal rate and are backed by the U.S. government; their price falls when rates rise. TIPS are Treasury securities whose principal adjusts with CPI, so they protect purchasing power rather than nominal value. I-bonds are savings bonds bought directly from TreasuryDirect with a rate combining a fixed component and an inflation component, capped at a modest annual purchase limit, and they cannot lose nominal value.

Are bond funds or individual bonds better?

For most investors, funds — they are diversified, liquid, and require no management. Individual Treasuries have one real advantage: if you hold to maturity you get your principal back regardless of what rates did in between, which makes them useful for a defined near-term liability like the next three years of spending. A bond fund has no maturity date and therefore no such guarantee.

A glidepath where you increase bond allocation in the years approaching retirement, peak it around your retirement date, then decrease it again over the following 10-15 years. Research from Michael Kitces and Wade Pfau found it reduces sequence risk more effectively than a static allocation, because it concentrates protection in the specific window where a crash does the most damage, without permanently sacrificing the growth a 40-year retirement needs.

Do bonds still make sense when rates are volatile?

Yes, but the type matters more than it used to. When rates move sharply, long-duration bond funds can post equity-sized losses — 2022 demonstrated that clearly. Short-duration Treasuries and T-bills carry far less interest rate risk while still providing the thing bonds are actually for in a FIRE portfolio: a stable asset you can spend from without selling stocks in a downturn.

Should bonds go in a taxable account or a retirement account?

Taxable bond interest is taxed as ordinary income every year, which makes taxable accounts the worst place to hold them. As a default, put taxable bonds in a traditional 401(k) or IRA. The exceptions are municipal bonds, which are federally tax-exempt and therefore belong in taxable, and the short-term cash cushion that funds your early retirement spending, which needs to be accessible before 59½.

Bonds for FIRE in 2026: Treasuries, TIPS, and How Much to Hold

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The standard FIRE forum position on bonds is that they are a return drag you tolerate as you get older. That framing produces bad decisions in both directions — people hold none when they should hold some, and hold the wrong kind when they finally do.

Bonds in an early retirement portfolio have one primary job, and it is not "reduce volatility" in the abstract. It is to be the thing you spend from so you do not have to sell stocks in a downturn.

Once you see them that way, most of the practical questions answer themselves.

The Real Job: Not Selling Equities Into a Crash

The math behind sequence of returns risk is that withdrawing from a portfolio during a drawdown permanently destroys share count. A retiree who sells stocks after a 35% crash to fund living expenses locks in the loss on those specific shares — they are gone before the recovery arrives.

A retiree with two years of spending in short Treasuries does not have to do that. They spend the Treasuries, leave the equities alone, and give the stock portfolio time to recover.

That is the entire argument. It is not about the expected return of bonds, which is lower than equities and always will be. It is about removing forced selling from the equation during the specific years when forced selling is catastrophic.

Two consequences follow immediately:

During accumulation, that risk barely exists. You are adding money, not withdrawing. A crash means you buy cheap. This is why a 90-100% equity allocation is defensible for someone fifteen years from their FIRE date, and why standard age-based advice fits FIRE investors badly.

Approaching and entering retirement, it is the dominant risk. The five years either side of your retirement date are the fragile window. This is where bonds earn their place.

The Bond Tent

That asymmetry produces the glidepath that FIRE research most consistently supports: the bond tent.

10+ years out: low or zero bonds. Maximize growth.
5 years out: begin increasing bond allocation.
At retirement: peak allocation, commonly 20-40% depending on your withdrawal rate and flexibility.
Years 1-15 of retirement: gradually reduce bonds again as the risk zone passes.

Ending retirement more aggressive than you started it feels backwards, and it is the correct answer. Once you have survived the first decade without a devastating sequence, your remaining problem is longevity — making the money last another 30 or 40 years — and that problem is solved by growth, not safety. See longevity risk in a 50-year portfolio.

Which Bonds

Not all fixed income does the job, and 2022 taught an expensive lesson about the difference.

Treasury bills and short-term Treasuries — the workhorse

Maturities from a few weeks to three years. Backed by the U.S. government, minimal credit risk, minimal interest rate risk.

This is where your cash cushion should live. If you want two years of spending protected from the stock market, short Treasuries are the cleanest instrument for it. You can build a simple ladder — a rung maturing every six months — so cash arrives when you need it without ever selling anything at a loss.

Treasury interest is also exempt from state and local income tax, which is a genuine advantage for anyone in a high-tax state and one that gets consistently overlooked.

Intermediate Treasuries and total bond funds — the ballast

Five to ten year duration. More interest rate sensitivity, higher expected yield. This is the traditional "bond allocation" and it is a reasonable default for the portion of your fixed income that is not earmarked for near-term spending.

Duration is the number to watch. A fund with a duration of 6 loses roughly 6% of its value for each 1 percentage point rise in rates. That is not a theoretical risk — 2022 delivered double-digit losses in "safe" bond funds and shocked a lot of investors who thought bonds could not do that.

TIPS — inflation protection

Treasury Inflation-Protected Securities adjust principal with CPI. For a retiree whose entire problem is maintaining purchasing power over 40 years, this is a structurally sensible holding, and it is the only asset that directly hedges the specific risk of inflation eroding a fixed withdrawal.

They are best held in tax-advantaged accounts, because the annual inflation adjustment to principal is taxable in the year it occurs even though you receive no cash for it.

I-bonds — the small, safe corner

Bought directly from TreasuryDirect. The rate combines a fixed component with an inflation component that resets twice a year, and the nominal value cannot fall. There is an annual purchase limit per person, which caps how much of a role they can play, and a one-year lockup with a three-month interest penalty if redeemed before five years.

Useful as part of an emergency fund or the outer layer of a cash cushion. Not a portfolio-scale allocation.

What to be careful with

Long-duration bond funds. Twenty-year-plus duration means equity-like volatility. If you are holding bonds to avoid selling stocks in a crash, an asset that can fall 25% is not doing the job.

High-yield ("junk") bonds. They are correlated with equities and fall when stocks fall. They give you equity-like risk with bond-like returns — precisely wrong for this purpose.

Corporate bond funds as a stock substitute. Better than junk, but they still carry credit risk that correlates with the same recessions that hurt your equities.

How Much

There is no single right answer, but there are useful anchors.

Anchor to years of spending, not to percentages. "Two to three years of expenses in short Treasuries and cash" is a more meaningful target than "20% bonds," because it maps directly onto the thing you are protecting against: the length of a typical bear market recovery.

Do the arithmetic: if you spend $60,000 a year, three years is $180,000. On a $1.5M portfolio that is 12%. On a $2.5M portfolio it is 7%. The percentage falls as the portfolio grows, which is correct — a larger portfolio needs proportionally less protection for the same absolute cushion.

Then layer the rest of your fixed income by role:

Layer	Instrument	Purpose
0-12 months of spending	High-yield savings, T-bills	Immediate liquidity
1-3 years of spending	Short Treasury ladder	Bear market buffer
Remaining bond allocation	Intermediate Treasuries, total bond, TIPS	Portfolio ballast and inflation hedge

For the cash layer, compare current rates on high-yield savings accounts against T-bills — the answer changes with the rate environment, and Treasury interest's state tax exemption often tips it.

Where to Hold Them

Taxable bond interest is taxed as ordinary income every year at your marginal rate — the least favourable treatment in the tax code. The default is therefore:

Taxable bonds → traditional 401(k) or IRA. No annual tax event.
Municipal bonds → taxable account, if you hold them at all. Federally tax-exempt, so sheltering them wastes the shelter.
TIPS → tax-advantaged, because of the phantom income from principal adjustments.

The one deliberate exception is your near-term cash cushion, which must be accessible before 59½ and therefore has to live in taxable regardless of the tax inefficiency. That is a case where the FIRE structure overrides the tax rule — accessibility beats optimisation.

The full framework is in asset location for FIRE.

Common Mistakes

Holding zero bonds right up to your retirement date. The most common and most expensive FIRE mistake. The accumulation-phase logic for 100% equities stops applying the moment withdrawals begin, and the transition needs to happen before the date, not after.

Holding bonds for decades of accumulation "to be safe." The opposite error. A 30-year-old with a 20-year runway is protecting against a risk they do not face and paying real growth for it.

Buying long-duration funds for stability. Duration is risk. If stability is the goal, short duration is the answer.

Ignoring where they sit. Bonds in a taxable account for a high earner can lose a meaningful share of their yield to tax before the money is ever spent.

Treating the cash cushion as part of the "return" portfolio. It is insurance. Judging it on yield is like judging your home insurance on its investment return.

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This article is for educational purposes and is not personalized financial or tax advice. Bond yields, interest rates, and purchase limits change; verify current figures with TreasuryDirect or your broker before investing. Consult a fee-only fiduciary advisor for guidance specific to your situation. Last updated: August 2026.

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