Minnesota residents face one of the higher state income tax burdens on CD interest in the US — 5.35% to 9.85% in 2026. This makes Treasury bills (exempt from Minnesota state income tax) an especially important comparison for MN savers. The best CD rates available to Minnesota residents reach 4.75% APY through FDIC-insured online banks.

Rates shown are as of May 2026 and change frequently. Verify current rates directly with the institution before opening.

Best CD Rates Available to Minnesota Residents (May 2026)

Institution Type 12-Month APY Min. Deposit
Online banks (Ally, Marcus, Discover, CIT) Online 4.50–4.75% $0–$2,500
Wings Financial Credit Union MN credit union 4.00–4.50% $500
Affinity Plus FCU MN credit union 4.00–4.50% $500
US Bank (Special CD, when available) National bank (MN HQ) 4.00–4.50% $1,000
US Bank (Standard) National bank 0.05–1.00% $500
Traditional big banks National bank 0.01–0.75% $1,000+

Minnesota State Income Tax on CD Interest (2026)

MN Taxable Income (Single) State Rate
$0–$31,690 5.35%
$31,691–$104,090 7.05%
$104,091–$193,240 7.85%
Over $193,240 9.85%

After-tax yield on a 4.65% CD for a MN resident in the 7.85% bracket (22% fed):

  • Total marginal rate: ~29.85%
  • After-tax yield: ~3.26%

T-Bills Are Significantly More Valuable for Minnesota Residents

12-Month CD 12-Month T-Bill
Gross yield 4.65% 4.35%
Federal taxable Yes Yes
MN state taxable (7.85%) Yes No
After-tax yield (22% fed + 7.85% MN) ~3.26% ~3.40%

At Minnesota’s typical middle-income tax rates, T-bills produce meaningfully more after-tax income than CDs on equivalent deposits. Minnesota residents should strongly consider T-bills as a primary alternative before committing to a CD.

What $10,000 Earns at Top Available MN Rates

Term APY Gross Interest After-Tax (22% fed + 7.85% MN)
6 months 4.40% ~$219 ~$153
12 months 4.65% ~$465 ~$326
2 years 4.10% ~$838 ~$588

Notable Minnesota Institutions

  • Wings Financial Credit Union — Apple Valley-based; open to aviation industry employees and residents of certain MN counties; consistently strong certificate rates
  • Affinity Plus FCU — St. Paul-based; open to Minnesota residents via various employer and association affiliations; competitive rates
  • University of Minnesota Credit Union (UMCU) — Open to UM students, faculty, staff, and some community members
  • US Bank — Minneapolis-based; standard rates are low, but Special CDs can be competitive when offered
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