Illinois State tax brackets in 2018

IllinoisIllinois's tax brackets haven't changed since last year. Illinois has a flat tax rate of 4.95%.

The combined federal and state marginal tax rate in the highest income range is 41.95%.

The maximum standard deductions in 2018 are $0 for single, married filing separately and head of household tax filers, and $0 for married filing jointly tax filers.

Illinois personal exemptions are reducing the taxable income. The amount of the exemption is $2,000 for single, $4,000 for married filing jointly, $2,000 for married filing separately and $2,000 for head of household tax filers.

The Illinois Dependant Deduction is $2,000 in 2018, which is reducing the taxable income.

2018 Illinois State tax brackets and tax rates

Taxable income Tax rate
$0 - 4.95%
Taxable income Tax rate
$0 - 4.95%
Taxable income Tax rate
$0 - 4.95%
Taxable income Tax rate
$0 - 4.95%

Combined Federal & Illinois tax brackets and marginal tax rates 2018

Taxable income Federal rate State rate Combined rate
$0 - $9,525 10.00% 4.95% 14.95%
$9,526 - $38,700 12.00% 4.95% 16.95%
$38,701 - $82,500 22.00% 4.95% 26.95%
$82,501 - $157,500 24.00% 4.95% 28.95%
$157,501 - $200,000 32.00% 4.95% 36.95%
$200,001 - $500,000 35.00% 4.95% 39.95%
$500,001 - 37.00% 4.95% 41.95%
Taxable income Federal rate State rate Combined rate
$0 - $19,050 10.00% 4.95% 14.95%
$19,051 - $77,400 12.00% 4.95% 16.95%
$77,401 - $165,000 22.00% 4.95% 26.95%
$165,001 - $315,000 24.00% 4.95% 28.95%
$315,001 - $400,000 32.00% 4.95% 36.95%
$400,001 - $600,000 35.00% 4.95% 39.95%
$600,001 - 37.00% 4.95% 41.95%
Taxable income Federal rate State rate Combined rate
$0 - $9,525 10.00% 4.95% 14.95%
$9,526 - $38,700 12.00% 4.95% 16.95%
$38,701 - $82,500 22.00% 4.95% 26.95%
$82,501 - $157,500 24.00% 4.95% 28.95%
$157,501 - $200,000 32.00% 4.95% 36.95%
$200,001 - $300,000 35.00% 4.95% 39.95%
$300,001 - 37.00% 4.95% 41.95%
Taxable income Federal rate State rate Combined rate
$0 - $13,600 10.00% 4.95% 14.95%
$13,601 - $51,800 12.00% 4.95% 16.95%
$51,801 - $82,500 22.00% 4.95% 26.95%
$82,501 - $157,500 24.00% 4.95% 28.95%
$157,501 - $200,000 32.00% 4.95% 36.95%
$200,001 - $500,000 35.00% 4.95% 39.95%
$500,001 - 37.00% 4.95% 41.95%

Illinois State standard deduction 2018

Filing status Standard deduction
Single $0
Married, filing jointly $0
Married, filing separately $0
Head of Household $0

Illinois State Exemption 2018

Filing statusPersonal Exemption
Single $2,000
Married, filing jointly $4,000
Married, filing separately $2,000
Head of Household $2,000

Illinois State Dependant exemption 2018

Dependant Deduction $2,000