Oklahoma Income Tax (2026)

Info: Graduated with a 4.50% top rate for 2026 (cut from 4.75%; consolidated to 3 brackets under HB 2764).

InfoVerified May 31, 2026

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Official source: oksenate.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

Income Tax in states bordering Oklahoma

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

ArkansasInfo
Graduated; top rate 3.7% for 2026 and later tax years (Act 1 of the May 2026 special session, retroactive to Jan 1, 2026). The 3.7% rate applies to net taxable income over $26,400; lower brackets apply below.
Verified Jul 5, 2026 · Source: arkleg.state.ar.us · Full Arkansas rule →
ColoradoInfo
Flat 4.40% — Colorado taxes all individual income at a single flat rate (4.40% for tax year 2025).
Verified Jul 4, 2026 · Source: tax.colorado.gov · Full Colorado rule →
KansasInfo
Graduated, two brackets, top rate 5.58% (5.20% up to $23,000 single / $46,000 married; 5.58% above).
Verified May 31, 2026 · Source: ksrevenue.gov · Full Kansas rule →
MissouriInfo
Graduated, topping out at 4.70% on Missouri taxable income over about $9,436 for 2026 (the 2025 threshold was about $9,191); rates run 2.00%–4.70% in 0.50% steps. Brackets are indexed for inflation each year.
Verified Jul 30, 2026 · Source: dor.mo.gov · Full Missouri rule →
New MexicoInfo
Graduated, topping out at 5.90% (on income over $210,000); rates 1.5%–5.9%.
Verified May 31, 2026 · Source: tax.newmexico.gov · Full New Mexico rule →
TexasPermitted
No state individual income tax — 0% on wages and all personal income.
Verified May 31, 2026 · Source: comptroller.texas.gov · Full Texas rule →

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