1New Mexico
Lowest21.0%
Overall effective tax rate
- Net
- Federal
- State
- FICA
- Federal income tax
- $7,670
- State income tax
- $2,359
- Payroll tax (FICA)
- $5,738
- Total tax
- $15,767
- Net income (annual)
- $59,233
Tax year 2026 · state vs state
Idaho vs New Mexico Income Tax Comparison (2026)
On a $75,000 salary (single filer, 2026), you pay $507 less state income tax a year in New Mexico than in Idaho, which is about $42 a month. At $150,000 the gap is $823 in favor of New Mexico.
Idaho: 5.3% flatNew Mexico: up to 5.9%Updated October 10, 2026
Compare Idaho and New Mexico for your income
Estimate for education only, not tax advice. 2026 federal and state rules, standard deductions, no local taxes. How we calculate.
State comparison
Comparing 2 states, sorted by lowest overall tax rate.
2Idaho
21.7%
Overall effective tax rate
- Net
- Federal
- State
- FICA
- Federal income tax
- $7,670
- State income tax
- $2,867
- Payroll tax (FICA)
- $5,738
- Total tax
- $16,274
- Net income (annual)
- $58,726
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💰 Monthly breakdown
Your take-home pay, spread across the year
New Mexico
Monthly gross$6,250
Monthly tax$1,314
Monthly take-home$4,936
Idaho
Monthly gross$6,250
Monthly tax$1,356
Monthly take-home$4,894
Estimates use 2026 federal and state rates, the standard deduction for your filing status and no local taxes. Rankings use state income tax only.
Idaho vs New Mexico: how the two systems differ
| Idaho | New Mexico | |
|---|---|---|
| Wage income tax | Flat 5.3% | Progressive, 6 brackets |
| Top rate | 5.3% | 5.9% |
| Lowest rate | 5.3% | 1.5% |
| Deductions and credits (single) | $16,100 standard deduction | $16,100 standard deduction |
State income tax and take-home pay at every salary
The same salary can leave you with different take-home pay depending on the state. This table applies each state’s 2026 rules to a single filer with no pre-tax contributions.
| Income | ID state tax | NM state tax | Difference | ID take-home | NM take-home |
|---|---|---|---|---|---|
| $30,000 | $482 | $351 | $130 less in New Mexico | $25,803 | $25,934 |
| $40,000 | $1,012 | $753 | $259 less in New Mexico | $33,308 | $33,567 |
| $50,000 | $1,542 | $1,184 | $357 less in New Mexico | $40,813 | $41,171 |
| $60,000 | $2,072 | $1,654 | $417 less in New Mexico | $48,318 | $48,736 |
| $75,000 | $2,867 | $2,359 | $507 less in New Mexico | $58,726 | $59,233 |
| $100,000 | $4,192 | $3,569 | $623 less in New Mexico | $74,988 | $75,611 |
| $150,000 | $6,842 | $6,019 | $823 less in New Mexico | $106,949 | $107,772 |
| $250,000 | $12,142 | $11,158 | $984 less in New Mexico | $171,040 | $172,024 |
Single filer, 2026, federal standard deduction. Take-home is after federal, state and payroll tax. No local taxes.
Married filing jointly
| Income | ID state tax | NM state tax | Difference | ID take-home | NM take-home |
|---|---|---|---|---|---|
| $75,000 | $1,758 | $1,429 | $329 less in New Mexico | $62,864 | $63,193 |
| $100,000 | $3,083 | $2,576 | $508 less in New Mexico | $81,627 | $82,134 |
| $150,000 | $5,733 | $4,961 | $772 less in New Mexico | $117,452 | $118,224 |
| $250,000 | $11,033 | $9,861 | $1,172 less in New Mexico | $186,435 | $187,607 |
Married filing jointly, 2026, federal standard deduction. Uses each state's joint brackets where they differ.
Does the lower-tax state change as income rises?
For a single filer, Idaho and New Mexico charge the same state income tax (nothing) up to roughly $17,500 of income. Above that, Idaho is the lower-tax state. The order flips again near $25,000, so the better state depends on where your income falls.
Rates side by side
Idaho (single filers)
| 5.3% | Over $4,811 |
New Mexico (single filers)
| 1.5% | Up to $5,500 |
| 3.2% | $5,501 to $16,500 |
| 4.3% | $16,501 to $33,500 |
| 4.7% | $33,501 to $66,500 |
| 4.9% | $66,501 to $210,000 |
| 5.9% | Over $210,000 |
Full details for each state: Idaho income tax calculator and New Mexico income tax calculator. Federal rates are on the 2026 federal tax brackets page.
Idaho vs New Mexico FAQ
Which has lower income tax, Idaho or New Mexico?+
New Mexico is lower at $75,000: $2,359 of state income tax versus $2,867 in Idaho. At $150,000 it is $6,842 in Idaho and $6,019 in New Mexico. For a single filer, Idaho and New Mexico charge the same state income tax (nothing) up to roughly $17,500 of income. Above that, Idaho is the lower-tax state. The order flips again near $25,000, so the better state depends on where your income falls.
How much more do I keep on $100,000 in Idaho versus New Mexico?+
A single filer keeping $74,988 a year in Idaho would keep $75,611 in New Mexico after federal, state and payroll tax. The difference is $623 a year, or $52 a month.
How do the Idaho and New Mexico income tax systems differ?+
Idaho uses a flat 5.3% rate; New Mexico uses progressive rates up to 5.9%. State deductions and exemptions also differ, which changes how much income is taxed.
Are local taxes included in this Idaho vs New Mexico comparison?+
No. It covers federal income tax, Social Security, Medicare and state income tax only. City, county, sales and property taxes are not included, and they can change the real cost of living in each state.
Should I move from Idaho to New Mexico to save on taxes?+
State income tax is one cost among many. Property and sales taxes, housing, insurance and wages also differ, and you may owe tax to both states in the year you move. Use this comparison as one input and confirm details with a tax professional.
Sources
- Tax Foundation: 2026 state individual income tax rates and brackets
- IRS: Tax inflation adjustments for tax year 2026
Last checked October 10, 2026. Confirm with your state tax agency before filing.
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Estimates for education only, not tax, legal or financial advice. Not a substitute for a tax professional or your state revenue department.