I’ve been parking cash in T-bills and HYSAs for over a year and barely thinking about TIPS. Why would I? Inflation was cooling, real yields were decent but not compelling enough to deal with the quirks, and T-bills were paying 4.2%+ with dead-simple reinvestment.

Then the tariff numbers landed. And the inflation math changed overnight.

The average effective US tariff rate hit 22.5% in April 2026 — the highest since 1909, according to the Yale Budget Lab. That’s not a typo. We haven’t seen import duties this aggressive in over a century. Morningstar revised their 2026 CPI forecast up to 2.7% post-tariff escalation, and that might be conservative depending on how much of the cost gets passed through.

TIPS suddenly look different with those numbers in front of you. Here’s where I’m landing after running the comparisons.

Quick Verdict

Factor	TIPS	T-Bills	CDs
Current yield	~1.94% real + CPI adjustment	~4.20-4.30% nominal	~4.20% (12-month)
If inflation hits 2.7%	~4.64% effective	4.20% (fixed)	4.20% (fixed)
If inflation hits 3.5%	~5.44% effective	4.20% (fixed)	4.20% (fixed)
State tax on interest	Exempt	Exempt	Taxable
Inflation protection	Built-in (principal adjusts with CPI)	None	None
Downside risk	Deflation floors at par for new issues	Near zero	Near zero
Complexity	Moderate (tax quirks, phantom income)	Low	Very low

Bottom line: At 2.7% inflation or above, TIPS beat T-bills on total return. Below 2.5%, T-bills win on simplicity and yield. The tariff shock tilts the math toward TIPS for the first time in a while.

What TIPS Actually Are (60-Second Version)

Treasury Inflation-Protected Securities are US government bonds whose principal adjusts with the Consumer Price Index. You buy a TIPS paying 1.94% real yield. If CPI rises 2.7% that year, your principal grows by 2.7% and you earn 1.94% on the higher principal.

That’s the whole pitch. Your return stays above inflation by the real yield amount, regardless of what CPI does.

If you bought a $10,000 TIPS at 1.94% real yield and inflation ran at 2.7%:

• Your principal adjusts to $10,270
• Your coupon payment is 1.94% of $10,270 = $199.24
• Your total return: roughly $469 on $10,000, or about 4.69%

Compare that to a T-bill paying 4.25% flat on the same $10,000: $425. The TIPS wins by $44 in this scenario. Not life-changing on $10,000. On $100,000, that’s $440. On a $500,000 fixed-income allocation, it’s $2,200.

The gap widens fast if inflation overshoots.

Why the Tariff Shock Changes the TIPS Calculation

I’ve been watching TIPS real yields hover around 1.8-2.0% for months without getting excited. The breakeven inflation rate (the spread between nominal Treasuries and TIPS) was sitting around 2.3%, which basically priced in the Fed hitting its target. Boring. No edge.

The tariff escalation rewrites that story. Here’s what moved:

Inflation expectations jumped. A 22.5% average tariff rate doesn’t just affect imported goods. It cascades through supply chains. A refrigerator assembled in Ohio still uses components from six countries. The tariff impact on dividend stocks I wrote about was about corporate earnings. This is about consumer prices — grocery prices, your Amazon cart, car repair bills, insurance premiums (replacement parts cost more, so premiums follow).

The Fed isn’t cutting. Market pricing for the April 28-29 FOMC meeting shows zero rate cuts priced in, with a 10.3% probability of a hike. That’s a sharp reversal from three months ago when two cuts were in play for 2026. No cuts means nominal yields stay pinned. But inflation rising while nominal rates hold steady means real returns on T-bills and CDs are falling even though the headline rate hasn’t changed.

TIPS principal adjustments are already moving. April’s CPI-linked adjustment pushed TIPS principal balances up 0.47% in a single month. Annualize that and you’re looking at 5.6% inflation-adjusted principal growth — well above the 2.7% annual forecast. One month doesn’t make a trend, but it shows the tariff effect is hitting CPI faster than some models predicted.

The Breakeven Question: When Do TIPS Beat T-Bills?

This is the only math that matters. The “breakeven inflation rate” tells you exactly where the line is.

Current breakeven: roughly 2.3% (5-year TIPS vs. 5-year nominal Treasury)

If actual inflation runs above the breakeven, TIPS win. If it runs below, T-bills and nominals win.

TIPS vs T-Bills at Different Inflation Scenarios

Inflation Rate	TIPS Effective Return (1.94% real)	T-Bill Return (4.25% nominal)	Winner
2.0%	~3.94%	4.25%	T-Bills by 31 bps
2.3% (breakeven)	~4.24%	4.25%	Roughly tied
2.7% (Morningstar forecast)	~4.64%	4.25%	TIPS by 39 bps
3.0%	~4.94%	4.25%	TIPS by 69 bps
3.5% (tariff escalation scenario)	~5.44%	4.25%	TIPS by 119 bps

The breakeven is 2.3%. Morningstar is forecasting 2.7%. That’s a 40-basis-point cushion above breakeven, meaning TIPS are favorable unless inflation comes in meaningfully below revised forecasts.

And here’s the thing — 2.7% might be the optimistic scenario. If retaliatory tariffs escalate further, or if the tariff pass-through runs hotter than models predict (which tends to happen with consumer goods), 3%+ is plausible.

The Catch: TIPS Have Real Downsides

I’m not going to pretend TIPS are clean and simple. They’re not. There are legitimate reasons I’ve avoided them until now.

Phantom Income (The Tax Drag Problem)

The CPI adjustment to your principal is taxable in the year it occurs, even though you don’t receive the cash until the bond matures. You owe federal income tax on inflation adjustments you haven’t pocketed yet.

On a $50,000 TIPS position with 2.7% inflation, you’d owe federal tax on $1,350 of “income” (the principal adjustment) that’s still locked inside the bond. At a 22% marginal rate, that’s roughly $297 in tax on money you can’t spend.

The fix: Hold TIPS in a tax-advantaged account — IRA, Roth IRA, 401(k). The phantom income problem disappears completely. I’d never hold a meaningful TIPS position in a taxable brokerage account for this exact reason. (TIPS are still state-tax-exempt like other Treasuries, which helps in high-tax states, but the federal phantom income issue remains in taxable accounts.)

Duration Risk

Longer-term TIPS (10-year, 20-year, 30-year) are sensitive to interest rate changes. If real yields rise, your existing TIPS lose market value. This only matters if you sell before maturity, but it means TIPS aren’t “park it and forget it” in the same way a high-yield savings account or money market fund is.

Short-term TIPS (5-year) or TIPS ETFs that target shorter durations carry much less of this risk.

Complexity vs. T-Bills

T-bills are dead simple. Buy at a discount, get par at maturity, collect the difference. TIPS require you to understand CPI adjustments, accrued inflation indices, and tax treatment of phantom income. For someone who just wants to earn 4%+ with minimal hassle, T-bills still win on user experience.

How to Actually Buy TIPS in 2026

Option 1: Individual TIPS at TreasuryDirect

Same place you’d buy T-bills. The Treasury auctions new TIPS regularly — 5-year, 10-year, and 30-year maturities. The most recent 10-year TIPS auction priced at a 1.94% real yield.

Pros: No fees, no management expense, you hold to maturity and get exactly the real yield plus inflation. Cons: Less liquid than ETFs, and you’re committed to the maturity date.

Option 2: TIPS ETFs

ETF	Duration	Expense Ratio	What You Get
TIP (iShares)	~7 years	0.19%	Broad TIPS exposure across maturities
STIP (iShares)	~2.5 years	0.03%	Short-term TIPS, less rate sensitivity
VTIP (Vanguard)	~2.5 years	0.04%	Similar to STIP, Vanguard ecosystem
SCHP (Schwab)	~7 years	0.05%	Low-cost alternative to TIP

For most people, STIP or VTIP make the most sense right now. Short duration means less interest rate risk. You capture the inflation adjustment and the ~1.9% real yield without worrying about what happens to bond prices if the Fed surprises with a hike (remember that 10.3% probability).

I opened a VTIP position last week in my Roth IRA. Small — about $8,000. Enough to get real exposure to the thesis without overcommitting before I see Q2 CPI data.

Option 3: I Bonds (Related but Different)

I Bonds are the retail cousin of TIPS. They also adjust for inflation, but with a $10,000 annual purchase limit and a different rate structure (fixed rate + semiannual inflation adjustment). If you haven’t maxed your I Bond allocation, do that first — the purchase limit means the value of that $10,000 slot is high. Then consider TIPS for amounts beyond what I Bonds allow.

My Current Fixed-Income Setup (Post-Tariff Adjustment)

Here’s where I actually am with my own money. Changed a couple things this week.

Bucket	Instrument	Amount	Why
Emergency fund	HYSA at 4.20%	$12,000	Instant access, can’t afford duration here
Short-term cash	4-week T-bill ladder (auto-roll)	$15,000	State-tax-free, rolling monthly
Inflation hedge	VTIP (Roth IRA)	$8,000	New position — tariff-driven inflation thesis
I Bonds	Series I at TreasuryDirect	$10,000	Maxed 2026 allocation
Rate lock	12-month CD at 4.20%	$10,000	Locked in before any potential rate changes

The VTIP position is the only change I made because of the tariff data. Everything else was already in place from the strategy I outlined in the T-bills vs CDs and HYSA posts.

I’m not going all-in on TIPS. The tariff situation could de-escalate — negotiations might produce exemptions, and CPI could come in below forecast if consumer spending pulls back. But the asymmetry favors having some inflation protection: if inflation stays at 2.3%, TIPS roughly match T-bills. If it spikes to 3%+, TIPS pull well ahead. I can live with the downside. I don’t want to miss the upside.

Who Should Consider TIPS Right Now

You’re already holding T-bills or CDs and want inflation insurance. You don’t need to swap everything. Moving 15-25% of your fixed-income allocation into short-term TIPS (STIP, VTIP) gives you upside if the tariff-driven inflation materializes, with minimal cost if it doesn’t.

You have a tax-advantaged account with room. TIPS in a Roth IRA eliminate the phantom income problem entirely. Every dollar of inflation adjustment compounds tax-free. That’s the ideal setup.

You’re concerned about purchasing power, not just nominal return. A T-bill paying 4.25% while inflation runs at 3.5% gives you a real return of 0.75%. A TIPS paying 1.94% real gives you 1.94% real regardless. The difference between those outcomes is the difference between treading water and actually growing your purchasing power.

Who Should Skip TIPS

You need maximum simplicity. Stick with T-bills or a high-yield savings account. TIPS add complexity for a marginal benefit that only materializes if inflation exceeds expectations.

Your taxable account is your only option. The phantom income tax drag eats into the inflation benefit. Unless you’re in a very high tax bracket where the state-tax exemption compensates, the hassle isn’t worth it in a taxable account for most people.

You think tariff escalation gets reversed quickly. If you believe trade negotiations will produce a meaningful de-escalation within 6 months, inflation expectations will drop back to the 2.2-2.3% range and TIPS will underperform nominals. That’s a reasonable position — just not the one I’m betting on.

The Bottom Line

TIPS have been the boring corner of the Treasury market for two years. The tariff shock is waking them up.

At 1.94% real yield with inflation forecast at 2.7% (and plausible risk to the upside), TIPS offer something T-bills and CDs can’t: a return that automatically adjusts if consumer prices climb higher than expected. You’re not betting on a specific inflation number. You’re buying insurance that pays you more as the risk increases.

The April principal adjustment of 0.47% is early evidence that the tariff pass-through is real and happening now. TIPS holders are already seeing their balances rise faster than the annual forecast implied.

My move: $8,000 in VTIP in a Roth IRA, alongside an existing T-bill ladder and maxed I Bonds. Not a dramatic shift. Just adding the one tool that was missing from my fixed-income setup — the one that pays more when inflation runs hot.

If you’ve been sitting in T-bills and CDs (good instinct — I’ve been doing the same), this is worth 30 minutes of homework. Run your own breakeven calculation. Look at STIP or VTIP. The entry point on TIPS real yields hasn’t been this attractive since late 2023, and the inflation catalyst hasn’t been this concrete since the post-pandemic supply shock.

The tariffs are here. The price adjustments are coming. TIPS are built for exactly this moment.

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Based on personal holdings in VTIP, T-bills, I Bonds, and CDs as of April 2026. TIPS yield and CPI data sourced from TreasuryDirect and Bureau of Labor Statistics. Tariff data from Yale Budget Lab. Inflation forecasts from Morningstar. This is not financial or tax advice — consult a professional for your specific situation.