When spikes, suddenly everyone wants to know about I Bonds and TIPS. These government-backed securities offer something unique: protection against inflation. Here's how they work and when they make sense for your portfolio.
What Are I Bonds?
I Bonds (Series I Savings Bonds) are savings bonds sold by the U.S. Treasury that earn interest based on a combination of:
- Fixed rate: Set when you buy, stays constant
- Inflation rate: Adjusts every 6 months based on CPI
Current mechanics:
- Interest = Fixed rate + Inflation rate
- Rate adjusts May 1 and November 1
- Interest compounds semiannually
- Your principal is always protected
Pro Tip
I Bonds made headlines in 2022 when their rate hit 9.62%. While rates fluctuate, they always track inflation, providing real protection.
I Rules and Limitations
Purchase limits:
- $10,000 per person per year (electronic)
- Additional $5,000 with (paper)
- Can buy for children, spouse, trusts
Holding period:
- Must hold at least 1 year
- Redeem before 5 years: lose last 3 months interest
- After 5 years: no penalty
Where to buy:
- TreasuryDirect.gov (only place for electronic I Bonds)
- Paper I Bonds via tax refund only
I Bond Strategies
Emergency Fund Supplement
- After 1 year, becomes accessible
- Earns more than savings accounts
- Maintains purchasing power
Short-Term Goals (3-5 years)
- Inflation protection for known future expenses
- Better than CDs during high inflation
- savings, major purchases
Part of Bond Allocation
- Replaces some traditional bonds
- Inflation protection regular bonds lack
- Tax-deferred growth
When inflation spiked in 2022, Carlos bought $10,000 in I Bonds earning 9.62%. His high-yield savings was paying 1%. Even after rates adjusted, his I Bonds outperformed and protected his purchasing power while he saved for a home down payment.
What Are TIPS?
TIPS (Treasury Inflation-Protected Securities) are Treasury bonds whose principal adjusts with inflation:
How they work:
- Face value increases with inflation (CPI)
- Fixed paid on adjusted principal
- At maturity, receive greater of adjusted or original principal
Example:
- Buy $1,000 TIPS at 1% interest
- Inflation is 3%
- After 1 year: Principal = $1,030, interest paid on $1,030 = $10.30
- Total value: $1,040.30 (vs. $1,010 from non-TIPS)
TIPS vs. I Bonds Comparison
| Feature | I Bonds | TIPS |
|---|---|---|
| Where to buy | TreasuryDirect only | Brokerages, Treasury |
| Purchase limit | $10,000/year | Unlimited |
| Maturities | 30 years | 5, 10, 30 years |
| 1-year lockup | Trade anytime | |
| Tax treatment | Federal tax (defer until redemption) | Federal tax annually on inflation adjustment |
| Minimum | $25 | $100 (auction), $1 (funds) |
| Interest rate type | Fixed + variable | Fixed on adjusting principal |
When to Choose I Bonds
I Bonds are better when:
- You want state/local tax exemption
- You prefer tax deferral
- You have under $10,000/year to invest
- You don't need immediate liquidity
- You want simplicity
I Bond drawbacks:
- Purchase limits
- 1-year lockup
- Must use TreasuryDirect (clunky website)
- Not in investment accounts
When to Choose TIPS
TIPS are better when:
- You want to invest more than $10,000
- You need liquidity
- You want TIPS in a retirement account (tax-advantaged)
- You're using TIPS funds/ETFs
TIPS drawbacks:
- Phantom tax (taxed on inflation adjustment you haven't received)
- Prices fluctuate (can lose money if sold before maturity)
- More complex
Do This
For most individual investors, max out I Bonds first ($10,000), then consider TIPS or TIPS funds for additional inflation protection.
TIPS Funds and ETFs
If you want TIPS exposure beyond I Bonds:
Popular options:
- Vanguard Short-Term TIPS (VTIP)
- iShares TIPS Bond ETF (TIP)
- Schwab U.S. TIPS ETF (SCHP)
Advantages of funds:
- No purchase limits
- Liquidity
- Can hold in IRA (avoids phantom tax)
- across maturities
Considerations:
- Expense ratios (usually low, 0.03-0.20%)
- Price fluctuates with interest rates
- Not guaranteed to match inflation perfectly
Building an Inflation-Protected Portfolio
Conservative Approach
- I Bonds: $10,000/year
- High-yield savings for emergency fund
- Short-term TIPS fund for additional bonds
Moderate Approach
- I Bonds: $10,000/year
- TIPS: 20-30% of bond allocation
- Stocks: 60-70% of portfolio (long-term inflation hedge)
Aggressive Approach
- I Bonds for near-term needs
- Mostly stocks (best long-term inflation hedge)
- Minimal traditional bonds
I Bond Step-by-Step Purchase
Quick Win
Ready to buy I Bonds? Here's how:
- Go to TreasuryDirect.gov
- Create an account (you'll need Social Security number, bank info)
- Navigate to "BuyDirect"
- Select "Series I"
- Enter amount ($25 minimum, $10,000 maximum)
- Complete purchase
- Wait 1 year before redemption if needed
Tax Considerations
I Bonds
- Federal tax only (no state/local)
- Tax deferred until redemption
- Can be tax-free if used for education (income limits apply)
TIPS
- Federal tax on interest AND inflation adjustments annually
- Hold in IRA/401(k) to avoid phantom tax
- No state/local tax
Common Questions
Q: What happens if we have deflation? I Bonds: Rate can't go below zero; you won't lose principal TIPS: Principal can decrease, but you get at least original principal at maturity
Q: Should I bonds replace my emergency fund? Not entirely. Keep 1-3 months in accessible savings; I Bonds can back the rest after the 1-year lockup.
Q: Are I Bonds worth it when inflation is low? Less compelling than during high inflation, but still protect purchasing power. The fixed rate component provides some return regardless.
Q: Can I buy I Bonds for my kids? Yes! Each child can have their own TreasuryDirect account with their own $10,000 annual limit.
When NOT to Use Inflation-Protected Securities
Avoid This
- For money needed within 1 year - I Bonds have lockup
- As your only investment - Stocks still beat inflation long-term
- To chase high rates - Rates fluctuate; buy for protection, not speculation
- Ignoring tax implications - TIPS in taxable accounts create tax headaches
The Bottom Line
I Bonds and TIPS fill a specific role: inflation-protected savings for money you'll need in the medium term (1-10 years). They're not:
- A replacement for stocks (long-term growth)
- A replacement for emergency savings (need immediate access)
- A get-rich-quick investment
But for protecting purchasing power on money you're setting aside for specific goals, they're valuable tools—especially I Bonds with their simplicity and tax benefits.
