I-Bonds vs MYGA (2026) - Inflation Tier vs Lump-Sum Tier
Two different jobs
I-Bonds and MYGAs solve different problems. I-Bonds are a small-dose, inflation-protected, multi-decade compounding tool with a $10K/year cap. MYGAs are a lump-sum, locked-rate, 3-10 year contract with full state guaranty backing. They're not substitutes - they're complementary tiers of a fixed-income allocation.
| Dimension | I-Bonds | MYGA |
|---|---|---|
| Current yield (2026) | ~4.80% composite (1.20% fixed + 3.60% variable) | 5.25-5.65% (3-10yr terms) |
| Yield structure | Fixed + CPI variable, resets every 6 months | Locked for full term |
| Inflation linkage | Direct - CPI-U adjustment | None - locked nominal rate |
| Annual purchase limit | $10K/person electronic + $5K paper = $15K | Unlimited |
| Minimum | $25 | $10K-$25K |
| Federal tax | Deferred until redemption | Deferred until withdrawal |
| State tax | Exempt (31 USC 3124) | Taxable when withdrawn |
| Default protection | U.S. Treasury - unlimited | State guaranty $250-300K per owner per carrier |
| Liquidity year 1 | Locked | 10% per year free withdrawal |
| Early withdrawal penalty | 3 months interest (years 1-5) | Surrender charge (typically 9% yr 1, declining) |
| Max term | 30 years | Typically 3-10 years |
| 1035 exchange eligible | No | Yes (tax-free to another annuity) |
When the MYGA wins
- Lump-sum deployment. $250K, $500K, $1M in cash cannot be deployed in I-Bonds (capped). MYGAs accept the full amount in one purchase.
- Yield premium. 5.25-5.65% locked beats 4.80% composite by 45-85 bps - and the MYGA rate doesn't reset.
- Cool inflation environment. When CPI runs 2-3% (Fed target), the I-Bond's variable component drops sharply at the next reset. MYGA stays at the locked rate.
- State AND federal tax deferral. MYGAs defer both. I-Bonds defer only federal (state was already exempt).
- 1035 exchange capability. At MYGA term-end, you can transfer tax-free to another annuity, extending deferral indefinitely. I-Bonds offer no equivalent.
- 3-10 year window with known endpoint. Most retirement planning operates in this horizon. MYGA terms match it directly.
When the I-Bond wins
- Hot inflation environment. When CPI runs 5%+, the I-Bond's variable component explodes. In May 2022, the composite hit 9.62% as CPI surged. MYGAs locked at 4-5% before that move underperformed dramatically.
- Small annual contributions. $5K-$15K/year fits the I-Bond cap and gives extended tax deferral.
- Pure Treasury safety preference. I-Bonds are U.S. Treasury obligations - no carrier risk, no state guaranty dependency, no AM Best rating to monitor.
- Education savings outside 529. If proceeds go to qualified higher-ed and you're under income limits, federal tax is fully excluded.
- Long-horizon kids' or grandkids' savings. Buy $10K/year for a newborn; redeem at age 18-22 for college. 30-year tax deferral plus potential education exclusion.
- Inflation-hedge layer of overall fixed-income allocation. Even if you primarily hold MYGAs, holding $50K-$100K of I-Bonds for inflation protection diversifies the rate-regime risk.
Worked example - $50K/year contribution capacity, 10-year horizon
Option A: I-Bonds first ($30K max via couple + tax refund), MYGA for excess
- $30K/year into I-Bonds for 10 years (married couple max electronic + paper)
- $20K/year into rolling 3-year MYGAs at 5.30%
- Estimated 10-year ending value: $620K-$680K depending on CPI path
- Tax position: Federal deferral on all I-Bond gain (~$80K); federal+state deferral on MYGA portion until withdrawal
Option B: All into 5-year MYGAs
- $50K/year into 5-year MYGAs at 5.50% (rolling)
- Estimated 10-year ending value: $665K
- Tax position: Full federal+state deferral on all gains
The hybrid (Option A) typically outperforms when inflation runs hot, underperforms slightly when inflation runs cool. The MYGA-only (Option B) is more predictable but loses the inflation hedge.
The recommended approach
- Max I-Bond allocation first. $10K/person/year + $5K paper via tax refund. Treat as the inflation-protection tier.
- Deploy excess cash into MYGAs. 3, 5, 7-year ladder. Capture the yield premium and full tax deferral on the bulk of fixed-income.
- Hold both for 5-10 years minimum. Both benefit from compounding inside their respective tax wrappers.
FAQ
Why not just put everything in MYGAs?
Inflation risk. If CPI surges to 6-8%, your locked MYGA at 5.50% becomes a real-yield loser. I-Bonds adjust automatically. A 10-20% I-Bond allocation hedges this scenario at small opportunity cost.
Why not just put everything in I-Bonds?
Two reasons: (1) $10K/year cap means you can't deploy a 6-figure lump sum; (2) when inflation runs cool (current environment), the I-Bond composite drops below MYGA rates, often by 50-100 bps.
Can I gift I-Bonds and MYGAs?
Yes to both. I-Bonds: gift via TreasuryDirect, counts toward recipient's annual limit. MYGAs: typically structured as ownership change (1035 to recipient) or beneficiary designation.
Are I-Bonds safer than MYGAs?
Technically yes - I-Bonds are direct U.S. Treasury obligations with unlimited backing. MYGAs are insurance contracts backed by carrier general account + state guaranty fund ($250-300K per owner per carrier). For both, no major insurer (AM Best A-rated) has defaulted on MYGA obligations in the modern era.
What about TIPS?
TIPS are the alternative inflation-protection tool. Unlike I-Bonds: no annual purchase cap, traded on secondary market, annual tax on inflation adjustments (phantom income), available inside IRAs. For lump-sum inflation protection above I-Bond caps, TIPS are the answer.
Can I hold I-Bonds in retirement accounts?
No - personal TreasuryDirect only. To get inflation protection inside an IRA, use TIPS or TIPS ETFs (SCHP, VTIP, TIP).
How fast can I exit each?
I-Bonds: 12-month minimum hold, then 1-3 days to redeem. MYGAs: 10% per year free withdrawal anytime; full surrender takes 10-30 business days with surrender charge.
Which one is better for a 65-year-old buying today?
Usually a MYGA-heavy allocation for the lump sum (locked 5-7 years) plus annual I-Bond contributions for inflation hedge. The 65-year-old has a known income-need horizon (typically 90-95+ years lifespan), and MYGAs match that with rate certainty while I-Bonds provide CPI protection.
Related reading
- I-Bonds 2026 full review
- TIPS vs MYGA - inflation hedge vs locked rate
- I-Bonds vs TIPS
- 5-year Treasury vs 5-year MYGA
- Best MYGA Rates 2026
Max I-Bonds first - then run MYGA math on the rest
Hans Goldstein, independent licensed insurance producer.
I-Bonds are the right inflation-protection tier and should max the $10K/person/year. For the lump-sum cash that doesn't fit in the I-Bond cap, MYGAs from A-rated carriers pay 5.25-5.65% locked, with full federal AND state tax deferral. Worth seeing the side-by-side at your actual cash position.
Drop your info and within 24 hours you'll get a written side-by-side: the Treasury option vs. the top 3 MYGAs from A-rated carriers at the same term, end-of-term math at your actual dollar amount, and after-tax yield computed at your state bracket. No pitch, no follow-up calls unless you ask.
Hans Goldstein · 213-414-2808 · NPN 20602398, independent licensed insurance producer appointed with multiple A-rated carriers
By submitting, you agree to receive calls and texts from Hans Goldstein. Msg/data rates apply. Reply STOP to opt out. Privacy Policy.
Disclosure
This review reflects publicly available Treasury auction results, TreasuryDirect documentation, and approximate market yields as of the date stated above. Treasury yields change daily; current yields differ from prior auctions and may differ from those shown here. This article is general information for educational purposes; it is not a personalized recommendation, solicitation, or offer of any specific security or insurance product. U.S. Treasury securities are backed by the full faith and credit of the United States Government. MYGA references compare Treasury yields against approximate rates from A-rated insurance carriers as of the date stated; carrier rates change monthly. State guaranty fund coverage on annuities is provided by the state insurance department and varies by state (typically $250,000-$300,000 per owner per carrier). Hans Goldstein is an independent licensed insurance producer (NPN 20602398) appointed with multiple A-rated annuity carriers; he is NOT a registered investment advisor, broker-dealer, or registered representative, and is not paid by the U.S. Treasury, TreasuryDirect, or any brokerage for this review. No compensation has been received from any third party in connection with this content. Always read the actual offering documents and consult a licensed advisor before purchasing any security or annuity. Tax discussion of 31 U.S.C. §3124 and Internal Revenue Code provisions reflects law as of 2026 and is subject to change.