Idaho Income Tax Brackets 2025
Idaho uses a flat income tax system with 1 bracket.
State Tax
5.8%
Top marginal rate
COL Index
97
Below national avg
Median Income
$70,214
Household
Brackets
1
Flat tax
Idaho Tax Brackets
| Income Range | Marginal Rate |
|---|---|
| $0 — and above | 5.80% |
Idaho State Tax at Different Income Levels
| Gross Income | State Tax | Effective Rate |
|---|---|---|
| $50,000 | $2,900 | 5.80% |
| $75,000 | $4,350 | 5.80% |
| $100,000 | $5,800 | 5.80% |
| $150,000 | $8,700 | 5.80% |
| $200,000 | $11,600 | 5.80% |
| $300,000 | $17,400 | 5.80% |
Calculate Your Exact Idaho Taxes
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