Quick answer
Mississippi has a flat 4.00% state income tax for 2026. The single-filer standard deduction is $2,300 and the personal exemption is $6,000, per the Tax Foundation's compilation of state law as of January 1, 2026.
Data as of 2026-01-01. Source: Tax Foundation (state statutes, Jan 1 2026)
| Single rate | Single: income over | Married-joint rate | Married-joint: income over |
|---|---|---|---|
| 4.00% | $10,000 | 4.00% | $10,000 |
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Last updated 2026-10-16. Data only, not financial or tax advice.