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Tax year 2026 · state vs state

Idaho vs North Dakota Income Tax Comparison (2026)

On a $75,000 salary (single filer, 2026), you pay $2,663 less state income tax a year in North Dakota than in Idaho, which is about $222 a month. At $150,000 the gap is $5,176 in favor of North Dakota.

Idaho: 5.3% flatNorth Dakota: up to 2.5%Updated October 10, 2026

Compare Idaho and North Dakota 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.

1North Dakota

Lowest

18.1%

Overall effective tax rate

  • Net
  • Federal
  • State
  • FICA
Federal income tax
$7,670
State income tax
$203
Payroll tax (FICA)
$5,738
Total tax
$13,611
Net income (annual)
$61,389

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

North Dakota

Monthly gross$6,250
Monthly tax$1,134
Monthly take-home$5,116

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 North Dakota: how the two systems differ

IdahoNorth Dakota
Wage income taxFlat 5.3%Progressive, 2 brackets
Top rate5.3%2.5%
Lowest rate5.3%1.95%
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.

IncomeID state taxND state taxDifferenceID take-homeND take-home
$30,000$482$0$482 less in North Dakota$25,803$26,285
$40,000$1,012$0$1,012 less in North Dakota$33,308$34,320
$50,000$1,542$0$1,542 less in North Dakota$40,813$42,355
$60,000$2,072$0$2,072 less in North Dakota$48,318$50,390
$75,000$2,867$203$2,663 less in North Dakota$58,726$61,389
$100,000$4,192$691$3,501 less in North Dakota$74,988$78,489
$150,000$6,842$1,666$5,176 less in North Dakota$106,949$112,125
$250,000$12,142$3,616$8,526 less in North Dakota$171,040$179,566

Single filer, 2026, federal standard deduction. Take-home is after federal, state and payroll tax. No local taxes.

Married filing jointly

IncomeID state taxND state taxDifferenceID take-homeND take-home
$75,000$1,758$0$1,758 less in North Dakota$62,864$64,623
$100,000$3,083$0$3,083 less in North Dakota$81,627$84,710
$150,000$5,733$718$5,015 less in North Dakota$117,452$122,467
$250,000$11,033$2,668$8,365 less in North Dakota$186,435$194,800

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 North Dakota charge the same state income tax (nothing) up to roughly $22,500 of income. Above that, North Dakota is the lower-tax state.

Rates side by side

Idaho (single filers)

5.3%Over $4,811

North Dakota (single filers)

1.95%$48,476 to $244,825
2.5%Over $244,825

Full details for each state: Idaho income tax calculator and North Dakota income tax calculator. Federal rates are on the 2026 federal tax brackets page.

Idaho vs North Dakota FAQ

Which has lower income tax, Idaho or North Dakota?+

North Dakota is lower at $75,000: $203 of state income tax versus $2,867 in Idaho. At $150,000 it is $6,842 in Idaho and $1,666 in North Dakota. For a single filer, Idaho and North Dakota charge the same state income tax (nothing) up to roughly $22,500 of income. Above that, North Dakota is the lower-tax state.

How much more do I keep on $100,000 in Idaho versus North Dakota?+

A single filer keeping $74,988 a year in Idaho would keep $78,489 in North Dakota after federal, state and payroll tax. The difference is $3,501 a year, or $292 a month.

How do the Idaho and North Dakota income tax systems differ?+

Idaho uses a flat 5.3% rate; North Dakota uses progressive rates up to 2.5%. State deductions and exemptions also differ, which changes how much income is taxed.

Are local taxes included in this Idaho vs North Dakota 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 North Dakota 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

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.