Idaho State tax brackets in 2018

IdahoIdaho's tax brackets are indexed for inflation, and are updated yearly to reflect changes in cost of living.Idaho has 7 tax brackets and 7 corresponding tax rates. The lowest tax rate is 1.13% and the highest tax rate is 6.93%.

The combined federal and state marginal tax rate in the highest income range is 43.93%.

The maximum standard deductions in 2018 are $6,350 for single, married filing separately and head of household tax filers, and $12,700 for married filing jointly tax filers.

State exceptions are $0 similarly to the federal exceptions.

2018 Idaho State tax brackets and tax rates

Taxable income Tax rate
$0 - $1,503 1.13%
$1,504 - $3,007 3.13%
$3,008 - $4,510 3.63%
$4,511 - $6,014 4.63%
$6,015 - $7,518 5.63%
$7,519 - $11,278 6.63%
$11,279 - 6.93%
Taxable income Tax rate
$0 - $3,007 1.13%
$3,008 - $6,015 3.13%
$6,016 - $9,021 3.63%
$9,022 - $12,029 4.63%
$12,030 - $15,037 5.63%
$15,038 - $22,557 6.63%
$22,558 - 6.93%
Taxable income Tax rate
$0 - $1,503 1.13%
$1,504 - $3,007 3.13%
$3,008 - $4,510 3.63%
$4,511 - $6,014 4.63%
$6,015 - $7,518 5.63%
$7,519 - $11,278 6.63%
$11,279 - 6.93%
Taxable income Tax rate
$0 - $3,007 1.13%
$3,008 - $6,015 3.13%
$6,016 - $9,021 3.63%
$9,022 - $12,029 4.63%
$12,030 - $15,037 5.63%
$15,038 - $22,557 6.63%
$22,558 - 6.93%

Combined Federal & Idaho tax brackets and marginal tax rates 2018

Taxable income Federal rate State rate Combined rate
$0 - $1,503 10.00% 1.13% 11.13%
$1,504 - $3,007 10.00% 3.13% 13.13%
$3,008 - $4,510 10.00% 3.63% 13.63%
$4,511 - $6,014 10.00% 4.63% 14.63%
$6,015 - $7,518 10.00% 5.63% 15.63%
$7,519 - $9,525 10.00% 6.63% 16.63%
$9,526 - $11,278 12.00% 6.63% 18.63%
$11,279 - $38,700 12.00% 6.93% 18.93%
$38,701 - $82,500 22.00% 6.93% 28.93%
$82,501 - $157,500 24.00% 6.93% 30.93%
$157,501 - $200,000 32.00% 6.93% 38.93%
$200,001 - $500,000 35.00% 6.93% 41.93%
$500,001 - 37.00% 6.93% 43.93%
Taxable income Federal rate State rate Combined rate
$0 - $3,007 10.00% 1.13% 11.13%
$3,008 - $6,015 10.00% 3.13% 13.13%
$6,016 - $9,021 10.00% 3.63% 13.63%
$9,022 - $12,029 10.00% 4.63% 14.63%
$12,030 - $15,037 10.00% 5.63% 15.63%
$15,038 - $19,050 10.00% 6.63% 16.63%
$19,051 - $22,557 12.00% 6.63% 18.63%
$22,558 - $77,400 12.00% 6.93% 18.93%
$77,401 - $165,000 22.00% 6.93% 28.93%
$165,001 - $315,000 24.00% 6.93% 30.93%
$315,001 - $400,000 32.00% 6.93% 38.93%
$400,001 - $600,000 35.00% 6.93% 41.93%
$600,001 - 37.00% 6.93% 43.93%
Taxable income Federal rate State rate Combined rate
$0 - $1,503 10.00% 1.13% 11.13%
$1,504 - $3,007 10.00% 3.13% 13.13%
$3,008 - $4,510 10.00% 3.63% 13.63%
$4,511 - $6,014 10.00% 4.63% 14.63%
$6,015 - $7,518 10.00% 5.63% 15.63%
$7,519 - $9,525 10.00% 6.63% 16.63%
$9,526 - $11,278 12.00% 6.63% 18.63%
$11,279 - $38,700 12.00% 6.93% 18.93%
$38,701 - $82,500 22.00% 6.93% 28.93%
$82,501 - $157,500 24.00% 6.93% 30.93%
$157,501 - $200,000 32.00% 6.93% 38.93%
$200,001 - $300,000 35.00% 6.93% 41.93%
$300,001 - 37.00% 6.93% 43.93%
Taxable income Federal rate State rate Combined rate
$0 - $3,007 10.00% 1.13% 11.13%
$3,008 - $6,015 10.00% 3.13% 13.13%
$6,016 - $9,021 10.00% 3.63% 13.63%
$9,022 - $12,029 10.00% 4.63% 14.63%
$12,030 - $13,600 10.00% 5.63% 15.63%
$13,601 - $15,037 12.00% 5.63% 17.63%
$15,038 - $22,557 12.00% 6.63% 18.63%
$22,558 - $51,800 12.00% 6.93% 18.93%
$51,801 - $82,500 22.00% 6.93% 28.93%
$82,501 - $157,500 24.00% 6.93% 30.93%
$157,501 - $200,000 32.00% 6.93% 38.93%
$200,001 - $500,000 35.00% 6.93% 41.93%
$500,001 - 37.00% 6.93% 43.93%

Idaho State standard deduction 2018

Filing status Standard deduction
Single $6,350
Married, filing jointly $12,700
Married, filing separately $6,350
Head of Household $6,350

Idaho State Exemption 2018

No available exemption

Idaho State Dependant exemption 2018