CD Q&A Author: Hans Goldstein, NPN 20602398 Last updated: 2026-06-27

How to Build a CD Ladder With $100K — Step-by-Step Guide

TL;DR

A $100,000 five-rung CD ladder is the workhorse retirement-income structure for someone who wants one maturity per year, full FDIC coverage at a single bank, and roughly $4,500 of annual interest at 2026 rates. Build it in one afternoon with $20,000 per rung at 1-, 2-, 3-, 4-, and 5-year terms. The biggest mistake at this size is splitting across too many banks for no marginal coverage benefit. The second biggest is ignoring the MYGA alternative, which pays roughly $7,500 more interest over 5 years at the same risk profile.

Why $100K is the sweet spot for a 5-rung ladder

At $100,000, you can build a clean 5-rung ladder with $20K per rung, which clears the minimum deposit requirements at virtually every top-yielding online bank. You fit entirely within FDIC coverage at a single institution under a single ownership category (the FDIC cap is $250,000). Operational complexity is manageable: one bank, five CDs, five maturity alerts.

Below $50,000, the ladder mechanics start breaking down because some top-rate CDs require $25K+ minimums. Above $250,000, you need to start splitting institutions for FDIC coverage. $100K sits cleanly in the middle.

Step 1: Pick the bank or platform

Three categories of issuer to consider, in roughly increasing order of yield and operational friction:

Type	Typical APY range	Pros	Cons
Brick-and-mortar bank	0.50 - 3.50%	Branch service	Worst yields by 100+ bps
Credit union	4.00 - 4.85%	NCUA-equivalent insurance, often best 5-yr rates	Membership eligibility friction
Online direct bank	4.25 - 4.75%	Best mid-curve yields, easy ACH	No in-person service
Brokered CD platform	4.30 - 4.80%	One account holds many issuers, secondary market liquidity	No auto-rollover; complexity

For a $100K ladder, the online direct bank is the default winner unless you have credit union eligibility and the credit union beats it on 5-year rate by more than 15 bps.

Step 2: Confirm the curve before locking

Pull current APYs for 1-, 2-, 3-, 4-, and 5-year CDs at your chosen institution. If the curve is normal-sloped (each longer term yields more), a ladder is structurally correct. If the curve is inverted (5-year yields less than 1-year), strongly consider a barbell or a long bullet instead.

Indicative mid-2026 best-available rates from a top-tier online bank:

Rung	Term	APY	Principal	Maturity interest
1	12 months	4.70%	$20,000	$940
2	24 months	4.45%	$20,000	$1,820
3	36 months	4.30%	$20,000	$2,690
4	48 months	4.40%	$20,000	$3,760
5	60 months	4.55%	$20,000	$4,980

Total interest at maturity of each rung (assumes flat rate environment, simple holding): $14,190 across 5 years. Blended yield: ~4.48 percent.

Step 3: Open the five CDs in one session

Most online direct banks let you open multiple CDs back-to-back inside one session. Open each rung individually so you have one account number per maturity date. Funding source is usually a linked external checking account via ACH; expect 2 to 3 business days for the first deposit to settle.

Set the renewal instructions before you finalize. Most banks default to auto-renew at the standard rate, which is almost always lower than the new-money rate. Change the default to "transfer to linked checking at maturity" so you can actively reshop at each maturity. See our rollover options guide for the cost of the auto-renew trap.

Step 4: Set the maturity calendar

Five calendar alerts, each 14 days before the relevant maturity date. The 14-day window gives you time to shop new rates, initiate a transfer if needed, and arrive at maturity with a decision in hand instead of defaulting to auto-renew.

Standard rolling logic: at each maturity, reinvest the matured principal into a new 5-year CD (or 5-year MYGA). After 4 cycles, the entire ladder is rolling at 5-year rates, with one maturity per year for cash availability.

Step 5: Set the beneficiary

If this is non-IRA money, name a Payable-on-Death (POD) beneficiary on each CD. This keeps the assets out of probate at death and lets the beneficiary access funds with a death certificate and ID. The POD designation does not affect FDIC coverage (it actually increases it under FDIC ownership-category rules).

If this is IRA money, the IRA itself carries a beneficiary designation that supersedes whatever is on individual CDs inside the IRA. Confirm the IRA beneficiary on file is current.

Step 6: Tax recordkeeping from day 1

Each CD will produce a 1099-INT in January for the interest credited the prior calendar year. With five CDs at one bank, you may receive one consolidated 1099-INT or five separate forms. Track the total against your tax software's interest line.

Important: even if you do not withdraw the interest, you owe tax on it in the year credited. CDs are taxed annually. This is the single biggest non-yield difference versus a MYGA, which defers all interest until withdrawal.

The full ladder build, one page

Pick one online direct bank with top-quartile 5-year APY.
Open 5 CDs: $20K each at 12, 24, 36, 48, 60 months.
Set each CD's maturity instruction to "transfer to checking" not "auto-renew."
Name POD beneficiary on each (non-IRA money).
Set 5 calendar alerts, each 14 days before maturity.
At each maturity, shop rates and roll into a new 5-year CD (or 5-year MYGA).

When this strategy beats simpler approaches

vs single bullet: Annual liquidity, distributed reinvestment risk, mostly the same blended yield.
vs HYSA only: 60 to 130 bps higher yield, with the cost being lock-up. Worth it for money you genuinely do not need within 12 months.
vs T-bill ladder: Similar yield, but bank CDs are FDIC-insured to $250K vs Treasury credit risk (essentially none). T-bills win on state-tax exemption; bank CDs win on terms longer than 52 weeks at most institutions.

When simpler is better

If your horizon is under 12 months, a HYSA at 4.50 percent matches or beats the 1-year rung with full liquidity.
If you cannot tolerate the operational complexity of 5 maturities, a single 3-year or 5-year bullet at the same bank with a calendar alert is 80 percent of the benefit at 20 percent of the work.
If your principal is under $25,000, the rung sizes are too small to clear best-rate minimums at top banks. Use a single CD.

Where a MYGA ladder replaces this

The single biggest yield improvement is replacing some or all of the rungs with MYGA contracts. A 3-rung MYGA ladder ($33,333 each into 3-, 5-, and 7-year MYGAs at indicative 2026 rates of 5.10 / 5.55 / 5.80 percent) yields a blended ~5.48 percent versus the CD ladder's ~4.48 percent.

On $100,000 over 5 years, that 100 bps difference compounds to roughly $5,500 of additional interest, plus the MYGA defers tax on credited interest until withdrawal. The trade-offs are detailed in our CD vs MYGA ladder comparison.

Related guides

Frequently asked follow-up questions

Do I need to spread $100K across multiple banks for FDIC coverage?

Not if titled under one ownership category and held at one insured bank — $250,000 of FDIC coverage easily absorbs $100K of principal. You only need to split across banks if your total deposits at the institution (across all accounts) approach $250K per ownership category.

What is the minimum rung size that makes a ladder worth building?

Practical minimum is $5,000 per rung because most top-yielding online banks have a $1,000 to $5,000 minimum per CD. Below that, a single bullet CD is cleaner.

Should I use 5 rungs or fewer?

Five rungs (1- through 5-year) is the standard because it gives one maturity per year. Fewer rungs (3 rungs spread 1, 3, 5) reduces operational complexity but increases reinvestment risk concentration.

Can I build a ladder inside an IRA?

Yes. Most IRA-eligible CDs are offered by the same banks, with identical terms. The ladder mechanics are unchanged; the tax treatment is.

How do I track 5 separate CDs across multiple banks?

A simple spreadsheet with columns for bank, term, APY, principal, maturity date, and 14-day-prior alert date. Calendar reminders fire 14 days before each maturity.

What if rates spike right after I build my ladder?

The 1-year rung rolls into the higher rate within 12 months, and each subsequent year captures more of the spike. The ladder is structurally designed for this scenario.

Can I add more money to the ladder later?

Yes, but each new deposit needs to go into a fresh CD because existing CDs do not accept add-ons. Most savers add to whichever rung is closest to maturity to maintain ladder shape.

Is a $100K MYGA ladder better than a $100K CD ladder?

Usually yes on yield (80 to 110 bps pickup) and on tax (deferred interest). The trade is FDIC vs state guaranty association coverage and the surrender schedule. See our CD vs MYGA ladder comparison.

Want my independent take on whether a CD or MYGA fits your situation?

I'm a licensed independent producer (NPN 20602398) appointed with multiple A-rated carriers. I'll compare what your bank is offering against the top MYGA rates I see this week, and tell you straight which one fits your timeline, tax bracket, and liquidity needs.

No cost, no obligation. Written second opinion within 24 hours.

Hans Goldstein · 213-414-2808 · NPN 20602398, independent licensed producer

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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.