How to Build a CD Ladder With $500K — FDIC Stacking Guide
TL;DR
A $500,000 CD ladder requires FDIC stacking because the per-depositor coverage cap is $250,000 per insured bank per ownership category. The cleanest structure is two banks at $250K each. The yield-maximizing structure is a $500K MYGA ladder at A-rated carriers, which adds roughly $30,000+ of interest over 5 years versus an equivalent CD ladder. At this scale, jumbo CD minimums ($100K) qualify for a 5 to 15 bps premium over standard rates.
The FDIC stacking primer
FDIC insurance is $250,000 per depositor, per insured bank, per ownership category. The phrase "per ownership category" is where stacking lives. The FDIC recognizes these categories, each insured separately at one bank:
- Single accounts (individual ownership)
- Joint accounts (two or more co-owners)
- Revocable trust accounts (POD/TOD with named beneficiaries)
- Irrevocable trust accounts
- Certain retirement accounts (IRAs)
- Employee benefit plan accounts
- Corporation/partnership/unincorporated association accounts
- Government accounts
A single individual at one bank can hold $250K (single) + $250K share of a joint account + $250K POD/TOD (one beneficiary) = $750K covered. A married couple can stack into seven figures at a single institution if they layer correctly.
Three structures for $500K
Structure A: Two banks, individual ownership (recommended default)
$250,000 at Bank A under your name, $250,000 at Bank B under your name. Each $250K is fully FDIC-insured. Operationally simplest: 2 logins, 5 CDs at each bank for the ladder, 10 maturity alerts.
Yield consideration: Use the top-yielding bank for the larger portion if their rates lead by more than 15 bps on the 5-year. Otherwise split 50-50 for clean reporting.
Structure B: One bank with ownership-category stacking
$250,000 individual + $250,000 joint with spouse (your $125K share + spouse's $125K share = $250K combined coverage), or $250,000 individual + $250,000 POD account naming one beneficiary. Requires careful EDIE estimator verification.
Risk: The titling complexity creates real risk of coverage gaps if a CD is accidentally re-titled or if FDIC interpretation of your specific structure differs from your assumption. Use only if there is a meaningful yield reason to concentrate at one bank.
Structure C: Brokered CD platform
Open one brokerage account, buy CDs from 5+ different FDIC-insured issuers in $100K rungs. Each issuer separately insured to $250K. One consolidated 1099, one login, no auto-renew (forced active management at maturity).
Trade-off: Brokered CDs price like bonds on the secondary market, so if you sell before maturity you may take a small loss. For buy-and-hold ladders, this is irrelevant.
The 5-rung build at $500K
$100,000 per rung qualifies for jumbo CD pricing at most institutions. Indicative mid-2026 best-available rates:
| Rung | Term | APY (jumbo) | Principal | Maturity interest |
|---|---|---|---|---|
| 1 | 12 months | 4.80% | $100,000 | $4,800 |
| 2 | 24 months | 4.55% | $100,000 | $9,310 |
| 3 | 36 months | 4.40% | $100,000 | $13,790 |
| 4 | 48 months | 4.50% | $100,000 | $19,250 |
| 5 | 60 months | 4.65% | $100,000 | $25,520 |
Total interest at maturity of each rung: $72,670 across 5 years. Blended yield: ~4.58 percent (slightly above the $100K ladder thanks to jumbo pricing).
The titling and beneficiary checklist
- Decide the ownership category at each bank before opening any CD. Switching after the fact is paperwork-intensive.
- Use the FDIC EDIE estimator (edie.fdic.gov) to verify your specific structure clears coverage. Print and file the output.
- Name POD/TOD beneficiaries on each CD if non-IRA money. This keeps assets out of probate and (counterintuitively) can increase FDIC coverage via the revocable trust category.
- For joint accounts, both owners must be co-owners with equal withdrawal rights. Authorized signers do not count.
- For IRA CDs, the IRA itself names the beneficiary. CD-level POD designations on an IRA CD are typically not recognized; the IRA custodian's beneficiary form controls.
Operational mechanics at this scale
Ten CDs (across 2 banks) or 5 CDs (across one bank with stacking) require disciplined recordkeeping:
- Master spreadsheet: bank, account number, term, APY, principal, maturity date, beneficiary, renewal instruction.
- Calendar alert 14 days before every maturity.
- Annual reconciliation against each bank's 1099-INT in January.
- Annual re-verification of beneficiary designations (especially after life events).
When this strategy beats simpler approaches
- vs a single $500K bullet: Distributed reinvestment risk, annual liquidity, similar blended yield.
- vs T-bill ladder: Slightly higher yield on most terms, state-tax disadvantage offset by FDIC simplicity for most non-California residents.
- vs muni ladder: Higher pre-tax yield, simpler tax reporting. Munis win only for high-bracket taxpayers in high-tax states.
When simpler is better
- If you cannot maintain 10-CD operational complexity, use a brokered platform or a 3-rung structure ($166K each at 1, 3, 5 years).
- If you want one statement, use a brokered CD platform with one brokerage account.
- If you have under 5 years to live with the lock, a 3-year bullet across 2 banks is operationally lighter.
Where a MYGA ladder replaces this
This is the largest delta on the page. At $500K, the MYGA ladder is dramatically more efficient:
| Structure | Blended APY | 5-yr interest | Coverage |
|---|---|---|---|
| $500K CD ladder, jumbo rates | 4.58% | ~$72,700 | FDIC (req. 2+ banks) |
| $500K 3-rung MYGA ladder | 5.48% | ~$105,000 | State guaranty (2 carriers to split) |
Additional interest from the MYGA ladder: ~$32,300 over 5 years. Plus tax-deferred compounding on the credited interest, which materially improves after-tax results if this is non-qualified money.
The trade-offs are the same as on smaller ladders: FDIC vs state guaranty, fixed EWP vs sliding surrender + MVA, annual taxation vs deferral. Full side-by-side math in our CD ladder vs MYGA ladder comparison.
Related guides
- How to build a $100K CD ladder
- CD ladder vs MYGA ladder side-by-side
- Credit union vs bank CD
- Brokered CD secondary market explained
Frequently asked follow-up questions
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Disclosure
This article reflects publicly available CD, savings, and annuity rate information approximate to the date above. Rates change frequently — often weekly. Always confirm current rates directly with the institution before opening, renewing, or transferring. This is general educational content, not a personalized recommendation, solicitation, or offer of any specific product. Hans Goldstein is an independent licensed insurance producer (NPN 20602398) appointed with multiple A-rated carriers in the fixed-annuity market; Goldstein & Co. LLC is not a bank, broker-dealer, or registered investment adviser. CDs are deposit products of FDIC-insured banks or NCUA-insured credit unions; annuities are insurance contracts backed by the issuing carrier and state guaranty associations. FDIC and NCUA insurance limits are typically $250,000 per depositor per institution per ownership category. Tax discussion reflects federal law as of 2026 and is subject to change; consult a tax professional for your situation.