Putting it all together: TIPS, I-bonds, muni tax math, allocation by age, and a framework for conservative and retiree investors.
In this lesson you'll learn
How much to allocate to bonds at every life stage
Which bond type matches each specific financial need
How I-Bonds and TIPS work and when to use them
A practical conservative bond portfolio blueprint
Putting together your complete fixed income plan
Your Fixed Income Allocation — The Framework
How much to allocate to bonds depends on four factors: (1) time horizon, (2) risk tolerance, (3) income needs, and (4) other income sources such as Social Security or a pension. Use these general guidelines as a starting point:
Age 25–35
90/10 to 100/0 (stocks/bonds)
Bonds optional — maximum growth phase
Age 35–45
80/20 to 90/10
Begin building the bond cushion
Age 45–55
70/30 to 75/25
Meaningful bond allocation, still growth-oriented
Age 55–65
60/40 to 65/35
Capital preservation becomes a priority
Retired (stable income)
50/50 to 60/40
Balance income stability with inflation protection
Retired (conservative)
40/60
Portfolio tilted to income over growth
Choosing the Right Bond Types
Match your bond type to your specific need — different bond categories serve very different purposes:
For Stability + safety: Short-term Treasuries (SHY) or Total Bond Market (BND)
For Inflation protection: TIPS (VTIP, TIP) or I-Bonds via TreasuryDirect.gov
Principal adjusts with CPI — real yield is locked in
For Tax efficiency (high bracket): Municipal bond ETFs (MUB, VTEB)
Interest exempt from federal tax — best in taxable accounts
For Higher yield (accepting credit risk): Investment-grade corporate (LQD)
More yield than Treasuries, moderate credit risk
For Aggressive income (high credit risk): High-yield corporate (HYG, JNK) — use sparingly
Equity-like risk in downturns; only a small sleeve for income-focused investors
Bond Selection Matrix
Your Need
Best Bond Type
ETF Example
Maximum safety
Short-term Treasuries
SHY, SGOV
Inflation protection
TIPS or I-Bonds
VTIP, TIP
Tax efficiency
Municipal bonds
MUB, VTEB
Higher yield
Investment-grade corporate
LQD, VCIT
Retirement income
Bond ladder or total market
BND + individual Treasuries
Special Tools — I-Bonds and TIPS
I-Bonds (Series I Savings Bonds)
US savings bonds with a composite rate = fixed rate + inflation rate (reset every 6 months). Currently one of the safest inflation hedges available to individual investors.
Annual purchase limit: $10,000/year per SSN (+$5,000 via tax refund)
Minimum hold period: 1 year (cannot redeem earlier)
Early redemption penalty: 3-month interest penalty if redeemed before 5 years
Where to buy: TreasuryDirect.gov only — no broker, no ETF
Best for: Emergency fund enhancement, inflation hedge, conservative savers
TIPS (Treasury Inflation-Protected Securities)
TIPS principal adjusts with CPI — your real yield is locked in at purchase. Available directly through TreasuryDirect.gov or through ETFs for convenience.
ETF options: VTIP (short-term) for low duration, TIP for broad TIPS exposure
How returns work: Real yield locked in — if you buy at 1.5% real and inflation runs 4%, you earn ~5.5% nominal
Tax complexity: "Phantom income" — you pay tax each year on principal increases even if not received as cash
Best account: Tax-deferred (IRA, 401k) to avoid phantom income taxation
Hold TIPS in tax-deferred accounts to avoid the phantom income problem. Hold I-Bonds in your own name — they're not available in IRAs or 401(k)s, but interest compounds tax-deferred until redemption.
The Conservative Investor's Bond Portfolio
For investors near or in retirement, a practical starting allocation for the fixed income sleeve of your portfolio:
65%
Total Bond Market ETF (BND)
Core (60–70% of fixed income)
Broad diversification across Treasuries, agency, and investment-grade corporate. Low cost at 0.03%, moderate ~6-year duration.
20%
TIPS ETF (VTIP) or I-Bonds
Inflation protection (15–20%)
Short-term TIPS via VTIP for low duration + inflation protection, supplemented with I-Bonds up to the $10k annual limit.
10%
Short-Term Treasury ETF (SHY)
Short-term stability (10–15%)
1-3 year Treasuries or money market fund. Your liquidity buffer — least sensitive to rate changes.
5%
Municipal Bond ETF (MUB)
Tax efficiency if high bracket + taxable
Replace some BND with MUB if you're in the 32%+ bracket and holding bonds in a taxable account.
Quick Knowledge Check
3 questions · test what you've just learned
1
You are 52 years old with moderate risk tolerance. Which stock/bond allocation is most appropriate?
2
You're in the 35% federal tax bracket and want bonds in your taxable brokerage. What is the tax-efficient choice?
3
What is the purchase limit for I-Bonds per Social Security number per year?
Key takeaways from Lesson 8
Bond allocation grows with age: 5-10% in your 20s, 30-40% by your 60s.
Match bond type to need: Treasuries for safety, TIPS/I-Bonds for inflation, munis for tax efficiency.
I-Bonds are limited to $10,000/year per SSN and must be bought directly at TreasuryDirect.gov.
TIPS are best held in tax-deferred accounts to avoid taxing phantom income each year.
A conservative bond portfolio: BND (core) + VTIP (inflation) + SHY (stability) + MUB (tax).
In the 32%+ bracket with a taxable account, municipal bond ETFs often beat Treasuries and corporates after tax.
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Course Complete!
You've finished Bonds & Fixed Income. You now understand the full fixed income picture — from bond mechanics to portfolio strategy. You're equipped to build a bond allocation that matches your risk tolerance, tax situation, and retirement timeline.