Alliant Credit Union CD & Share Certificate Rates — October 2026

Also known as Alliant.

As of October 22, 2026, Alliant Credit Union's highest CD (share certificate) rate is 4.35% APY on a 12-month CD ($75,000 minimum). That is 2.5 times the FDIC national average for 12-month CDs (1.76%). Standard CD rates range from 3.10% to 4.35% APY.

Last verified October 22, 2026 from www.alliantcreditunion.org · NCUA-insured credit union · Chicago, IL

Tracking began October 22, 2026.

Best APY4.35%12 months, $75,000 min

vs. Treasury−0.22%same-term Treasury 4.57%

vs. national average2.5×FDIC national average 1.76%

After inflation0.61%CPI 3.7% year over year

$10,000 earns$435over 12 months, before tax

Alliant Credit Union CD & share certificate rates

Alliant Credit Union CD rates
Term	Product	Minimum	APY	vs. Treasury
3 months	Share Certificate	$1,000	3.10%Verified October 22, 2026	−1.19%
3 months	Jumbo Share Certificate	$75,000	3.10%Verified October 22, 2026	−1.19%
6 months	Share Certificate	$1,000	3.60%Verified October 22, 2026	−0.80%
6 months	Jumbo Share Certificate	$75,000	3.60%Verified October 22, 2026	−0.80%
12 months	Jumbo Share Certificate	$75,000	4.35%Verified October 22, 2026	−0.22%
12 months	Share Certificate	$1,000	4.30%Verified October 22, 2026	−0.27%
18 months	Jumbo Share Certificate	$75,000	3.65%Verified October 22, 2026	−1.07%
18 months	Share Certificate	$1,000	3.60%Verified October 22, 2026	−1.12%
24 months	Jumbo Share Certificate	$75,000	3.70%Verified October 22, 2026	−1.17%
24 months	Share Certificate	$1,000	3.60%Verified October 22, 2026	−1.27%
36 months	Jumbo Share Certificate	$75,000	3.70%Verified October 22, 2026	−1.25%
36 months	Share Certificate	$1,000	3.60%Verified October 22, 2026	−1.35%
48 months	Jumbo Share Certificate	$75,000	3.70%Verified October 22, 2026	−1.28%
48 months	Share Certificate	$1,000	3.65%Verified October 22, 2026	−1.33%
60 months	Jumbo Share Certificate	$75,000	3.70%Verified October 22, 2026	−1.31%
60 months	Share Certificate	$1,000	3.65%Verified October 22, 2026	−1.36%

APY = annual percentage yield. "vs. Treasury" compares each APY with the Treasury yield for the same term on 2026-10-21 (converted to APY). Treasury interest is exempt from state income tax; see the T-bill vs. CD calculator.

What are Alliant Credit Union's best CD rates by term?

Alliant Credit Union's best rate is 4.35% APY on 12 months, verified October 22, 2026.

3 mo3.10%
6 mo3.60%
12 mo4.35%
18 mo3.65%
24 mo3.70%
36 mo3.70%
48 mo3.70%
60 mo3.70%

Calculate earnings at 4.35% for 12 months

How Alliant Credit Union compares

Best 1-year rate among the institutions we track: Popular Direct at 4.60% APY.
Popular Direct: best 5.00% APY on 60 months.
Barclays: best 4.75% APY on 24 months.
Sallie Mae Bank: best 4.75% APY on 60 months.
1-year Treasury: 4.57% APY-equivalent.

Rate changes

No changes since we started tracking Alliant Credit Union on October 22, 2026.

About Alliant Credit Union

Legal name: Alliant Credit Union
Regulator ID: NCUA 67955
Headquarters: Chicago, IL
Available in: IL
Total assets: $20.0 billion
Also known as: Alliant
Website: www.alliantcreditunion.org

Source: rates read from https://www.alliantcreditunion.org/u/deposit-rates. See the page text we read.

Frequently asked questions

What is the highest CD rate at Alliant Credit Union?

4.35% APY on a 12-month CD, as of October 22, 2026.

What is the minimum deposit for a Alliant Credit Union CD?

The lowest minimum we found is $1,000; jumbo and higher balance tiers start at up to $75,000.

How does Alliant Credit Union's best CD rate compare with Treasury yields?

4.35% APY is −0.22% versus the 12-month Treasury yield of 4.57% (APY-equivalent) on 2026-10-21. Treasury interest is also exempt from state income tax.

Is 4.35% a good CD rate?

It is 2.5 times the FDIC national average for a similar term (1.76% as of 2026-10-19), which is a deposit-weighted average across all U.S. banks and credit unions. Online banks and promotional CDs often pay several times the national average.

Are Alliant Credit Union CDs insured?

Alliant Credit Union is a federally insured credit union (NCUA 67955). Share certificates are insured by the NCUA up to $250,000 per member, per ownership category.

What is a share certificate at Alliant Credit Union?

A share certificate is the credit union equivalent of a bank CD: a term deposit that pays a stated yield when its conditions are met. Membership requirements, minimum deposits and early withdrawal terms depend on the credit union and product.

How often is this page updated?

We check Alliant Credit Union's rate page every day. The rates above were last verified on October 22, 2026.

More credit union certificate rates

Rates are copied from Alliant Credit Union's website and may change at any time. Confirm terms, minimums and eligibility with Alliant Credit Union before opening an account. This page is not financial advice.