Gold IRA vs Treasury Securities, TIPS and I Bonds

People who worry about inflation often compare gold with government securities built to respond to it. This page explains how those securities work, what the inflation index behind them measures, and how physical gold in an IRA differs. It is part of our guide to Gold IRA vs Other Retirement Investments. It is general education. It does not say which is better, predict prices or tell you what to buy. We also do not state current interest rates, because they change; check the official pages for today's figures.

What are Treasury securities, TIPS and I bonds?

Investor.gov says Treasury securities "carry the full faith and credit of the U.S. government" and include bills, notes, bonds and TIPS (Investor.gov bonds page). They are debt: you lend money to the government and it pays you back. Investor.gov also says the income from Treasury securities "may be exempt from state and local taxes, but not from federal taxes" (Investor.gov glossary).

TIPS are Treasury Inflation-Protected Securities. TreasuryDirect says they can have terms of 5, 10, 20 or 30 years, and that "The security's principal is adjusted based on the Consumer Price Index (CPI)" (TreasuryDirect TIPS page). The interest rate is fixed at auction and paid twice a year. At maturity you receive "whichever amount is larger" of the original face value or the inflation-adjusted value.

I bonds are Series I savings bonds. Investor.gov says they "offer a fixed rate of interest, adjusted for inflation" (Investor.gov savings bonds page). TreasuryDirect's Series I publication gives the formula for the composite rate: "Composite rate = [Fixed rate + 2 x Semiannual inflation rate + (Fixed rate x Semiannual inflation rate)]." It also says "An I bond's composite earnings rate changes every six months after its issue date" (FS Publication 0039).

How do the three compare?

How does the inflation adjustment work?

Both TIPS and I bonds rely on the Consumer Price Index, so it helps to know what it is. The Bureau of Labor Statistics describes the CPI as "a measure of the average change over time in the prices paid by consumers." The CPI-U population "constitutes over 90 percent of the U.S. population." BLS also warns: "The CPI does not necessarily measure your own experience with price change" (BLS CPI Q&A). A retiree who spends heavily on health care may see prices rise faster or slower than the national average.

For I bonds, TreasuryDirect says: "Even if the percent change in the CPI-U is negative (deflation), it will be used to calculate the earnings rate," and that if deflation exceeds the fixed rate, the bond's redemption value does not fall (FS Publication 0039). For TIPS, the maturity payment is the larger of face value or adjusted value, as shown above.

Neither security promises to match your own cost of living. They follow an index, and the index is an average.

What are the limits and rules for I bonds?

According to TreasuryDirect's Series I publication:

• "There is an annual purchase limit of $10,000 per Social Security Account Number." Naming a coowner does not raise the limit.
• Bonds can be redeemed one year after issue. If you redeem within five years, you give up the last three months of interest. After five years there is no interest penalty.

Investor.gov adds that you "can defer paying federal taxes on the interest until you cash in the bond or until it matures."

Can I bonds be held in an IRA? We could not confirm this. The TreasuryDirect publication and FAQ we opened do not address it, and Investor.gov's savings bond page does not mention IRAs. Ask TreasuryDirect or a tax professional before assuming either way. We also did not confirm from an opened source how TIPS are held inside an IRA, which usually depends on the firm that holds the IRA.

How do the risks differ?

Treasury securities. Investor.gov says "Inflation reduces purchasing power, which is a risk for investors receiving a fixed rate of interest." This is the risk that TIPS and I bonds are designed to address. Investor.gov also says: "If sold before maturity, the bond may be worth more or less than the face value." So a TIPS holder who sells early can get a different amount than they paid, even with the inflation adjustment (Investor.gov). The I bond one-year hold and early-redemption penalty are separate limits on access.

Gold. The CFTC says "precious metals prices can fluctuate just like other investments" and "A dealer will always sell metal above the spot price and buy it back below the spot price" (CFTC advisory). It also lists storage, insurance and administrative fees among costs to ask about.

Is gold a better inflation hedge than TIPS or I bonds?

We cannot say. We found no government source that ranks them, and we make no claim about how gold performs against inflation. The mechanics are the clear difference. TIPS and I bonds are tied to the CPI by their terms. Gold has no such link, so whether its price keeps up with inflation over any period is not guaranteed. Results for any past period depend on the dates chosen and do not predict the future. For what moves gold prices, see our guide to what drives gold prices.

What does the IRA rule add?

The IRS treats an IRA's purchase of a collectible as a distribution, with an exception for qualifying bullion. The IRS says an IRA's acquisition of a collectible "is treated as an immediate distribution from such account in an amount equal to the cost to the plan of such collectible." Bullion "of a certain fineness" is excluded from that rule if "a bank or approved non-bank trustee keeps physical possession of it" (IRS collectibles page). See our collectibles rule guide.

What mistakes do people make with this comparison?

• Assuming "inflation-protected" means "cannot lose." Selling TIPS early can return more or less than you paid.
• Treating the CPI as a personal inflation rate. BLS says it may not match your experience.
• Forgetting the I bond annual limit and holding rules.
• Assuming I bonds can sit in an IRA without checking.
• Assuming gold tracks inflation because it is "real." No source we opened says so.
• Judging any asset by one stretch of past results.

What related questions should you look at?

• Gold IRA vs Bonds covers bonds more broadly, including interest-rate and credit risk.
• Gold IRA vs CDs and Cash covers bank products.
• Treasury rules and IRA eligibility depend on your account and tax situation. A fee-only planner with no ties to a dealer can help you weigh them. This page cannot.