Free tools Windows power users keep installed
One-click scans. No signup required.
Protecting a portfolio from inflation starts with a plan, not a prediction. Keep your goals, time horizon, cash needs and tolerance for risk in view; then decide whether inflation-linked investments such as Treasury Inflation-Protected Securities (TIPS) or Series I savings bonds have a useful role. Neither is a reason to abandon a diversified strategy or make a rushed change after a market move.
Start with your plan, not the latest inflation headline
Inflation can erode what money buys over time, but a portfolio decision also has to account for when you will need the money and how much volatility you can tolerate. A strategy suited to a long-term goal may not suit cash you expect to spend soon. Review the purpose of each account, the timing of expected withdrawals and the amount of accessible cash you need before changing investments.
The SEC’s guide to asset allocation and diversification describes allocation as a decision that should reflect an investor’s time horizon and risk tolerance. There is no single inflation-hedge percentage that fits every investor.
Keep liquidity needs separate from investment choices
Money needed for near-term bills or emergencies has a different job from money invested for a distant goal. Vanguard’s August 19, 2026 guidance suggests a cash reserve of 3–6 months of living expenses, but that is Vanguard’s recommendation, not a universal rule. Consider your own income stability, obligations and access to cash rather than treating that range as a required portfolio allocation. Vanguard’s inflation-hedging guidance also cautions against making decisions based on emotion as markets move.
#1 Best Overall
What TIPS protect against—and what they do not
Treasury Inflation-Protected Securities are marketable U.S. Treasury securities whose principal is adjusted for changes in the Consumer Price Index for All Urban Consumers (CPI-U). They are issued in 5-, 10- and 30-year terms. The coupon rate is fixed, but because it is applied to the adjusted principal, the dollar amount of interest payments can change. Interest is paid every six months.
At maturity, Treasury pays the greater of the original principal or the inflation-adjusted principal. That maturity feature does not lock in the value you would receive if you sell earlier: TIPS can trade at market prices, which may be above or below the amount implied by their inflation adjustment. If you may need to sell before maturity, market-price risk matters. TreasuryDirect explains the mechanics and access options on its TIPS page.
You can buy TIPS at Treasury auctions through TreasuryDirect or through banks, brokers and dealers. Their CPI linkage addresses one specific risk; it does not make them a substitute for considering liquidity, investment horizon or the rest of your portfolio.
How I bonds differ from TIPS
Series I savings bonds also use CPI-U changes to adjust an inflation component, which resets every six months. Unlike TIPS, I bonds are non-marketable: you cannot sell them in a secondary securities market. Interest accrues and is received when the bond is redeemed or matures, rather than arriving as semiannual coupon payments.
I bonds are bought electronically through TreasuryDirect, and TreasuryDirect’s comparison page states an annual purchase limit of $10,000 per Social Security number. Because access, redemption rules and tax treatment can affect whether they suit your needs, check current details directly with Treasury before buying. See TreasuryDirect’s I bond information and its TIPS and I bond comparison.
| Feature | TIPS | I bonds |
|---|---|---|
| Inflation adjustment | Principal is adjusted using CPI-U. | Inflation component resets every six months using CPI-U changes. |
| Can you sell in a securities market? | Yes. TIPS are marketable, but the sale price before maturity can fluctuate. | No. I bonds are non-marketable and cannot be sold in a secondary securities market. |
| Term and purchase route | 5-, 10- or 30-year terms; available at TreasuryDirect auctions or through banks, brokers and dealers. | Purchased electronically through TreasuryDirect; an annual purchase limit applies. |
| Interest cash flow | Fixed coupon rate applied to adjusted principal; paid every six months. | Interest accrues and is received when redeemed or matured. |
| Main practical consideration | Market price may vary if sold before maturity; the maturity principal floor does not remove interim price risk. | Liquidity and purchase limits differ from marketable securities. |
Terms and rates can change. Consult TreasuryDirect for current rates, purchase conditions, redemption rules and tax details before acting.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Use diversification as part of the answer, not a guarantee
A diversified portfolio spreads exposure across investments rather than relying on a single holding or market segment. But a fund’s label alone does not establish that it is diversified: the SEC notes that a narrowly focused mutual fund or exchange-traded fund may still concentrate risk. Check what a fund actually holds and how it fits with the rest of your investments.
Diversification can help manage concentration, but it cannot guarantee gains or prevent losses. Vanguard puts it plainly: “Diversification does not ensure a profit or protect against a loss.” Vanguard’s discussion of portfolio diversification makes that limitation explicit.
Quick Recap
A measured way to review your portfolio
- Write down the job of the money. Identify the goal, when you expect to use the funds and any cash-access needs.
- Check your current allocation. Look across accounts and holdings, including concentrated funds or exposures that may be hidden behind broad-sounding labels.
- Assess whether inflation-linked securities fit. Compare TIPS’ marketability and potential early-sale price swings with I bonds’ non-marketable structure and purchase limit.
- Make changes deliberately. If your allocation no longer fits your goals, time horizon or risk tolerance, adjust as part of the plan rather than reacting to a recent inflation report or market move.
- Revisit when your circumstances change. A new goal, shorter time horizon or changed need for accessible cash can justify a review; a headline alone does not establish that your long-term strategy should change.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
