Iowa State tax brackets in 2018

IowaIowa's tax brackets haven't changed since last year. Iowa has 9 tax brackets and 9 corresponding tax rates. The lowest tax rate is 0.36% and the highest tax rate is 8.98%.

The combined federal and state marginal tax rate in the highest income range is 45.98%.

The maximum standard deductions in 2018 are $2,030 for single, married filing separately and head of household tax filers, and $5,000 for married filing jointly tax filers.

Iowa treats personal exemptions as tax credits, which means instead of deducting an amount from taxable income, the exemptions reduce your actual tax liability after it has been calculated. The amount of the tax credit is$40 for single, married filing separately and head of household tax filers, and $80 for married filing together tax filers.

The Iowa Dependant Tax Credit is $40 in 2018 , which is reducing the tax liability.

2018 Iowa State tax brackets and tax rates

Taxable income Tax rate
$0 - $1,598 0.36%
$1,599 - $3,196 0.72%
$3,197 - $6,392 2.43%
$6,393 - $14,382 4.50%
$14,383 - $23,970 6.12%
$23,971 - $31,960 6.48%
$31,961 - $47,940 6.80%
$47,941 - $71,910 7.92%
$71,911 - 8.98%
Taxable income Tax rate
$0 - $1,598 0.36%
$1,599 - $3,196 0.72%
$3,197 - $6,392 2.43%
$6,393 - $14,382 4.50%
$14,383 - $23,970 6.12%
$23,971 - $31,960 6.48%
$31,961 - $47,940 6.80%
$47,941 - $71,910 7.92%
$71,911 - 8.98%
Taxable income Tax rate
$0 - $1,598 0.36%
$1,599 - $3,196 0.72%
$3,197 - $6,392 2.43%
$6,393 - $14,382 4.50%
$14,383 - $23,970 6.12%
$23,971 - $31,960 6.48%
$31,961 - $47,940 6.80%
$47,941 - $71,910 7.92%
$71,911 - 8.98%
Taxable income Tax rate
$0 - $1,598 0.36%
$1,599 - $3,196 0.72%
$3,197 - $6,392 2.43%
$6,393 - $14,382 4.50%
$14,383 - $23,970 6.12%
$23,971 - $31,960 6.48%
$31,961 - $47,940 6.80%
$47,941 - $71,910 7.92%
$71,911 - 8.98%

Combined Federal & Iowa tax brackets and marginal tax rates 2018

Taxable income Federal rate State rate Combined rate
$0 - $1,598 10.00% 0.36% 10.36%
$1,599 - $3,196 10.00% 0.72% 10.72%
$3,197 - $6,392 10.00% 2.43% 12.43%
$6,393 - $9,525 10.00% 4.50% 14.50%
$9,526 - $14,382 12.00% 4.50% 16.50%
$14,383 - $23,970 12.00% 6.12% 18.12%
$23,971 - $31,960 12.00% 6.48% 18.48%
$31,961 - $38,700 12.00% 6.80% 18.80%
$38,701 - $47,940 22.00% 6.80% 28.80%
$47,941 - $71,910 22.00% 7.92% 29.92%
$71,911 - $82,500 22.00% 8.98% 30.98%
$82,501 - $157,500 24.00% 8.98% 32.98%
$157,501 - $200,000 32.00% 8.98% 40.98%
$200,001 - $500,000 35.00% 8.98% 43.98%
$500,001 - 37.00% 8.98% 45.98%
Taxable income Federal rate State rate Combined rate
$0 - $1,598 10.00% 0.36% 10.36%
$1,599 - $3,196 10.00% 0.72% 10.72%
$3,197 - $6,392 10.00% 2.43% 12.43%
$6,393 - $14,382 10.00% 4.50% 14.50%
$14,383 - $19,050 10.00% 6.12% 16.12%
$19,051 - $23,970 12.00% 6.12% 18.12%
$23,971 - $31,960 12.00% 6.48% 18.48%
$31,961 - $47,940 12.00% 6.80% 18.80%
$47,941 - $71,910 12.00% 7.92% 19.92%
$71,911 - $77,400 12.00% 8.98% 20.98%
$77,401 - $165,000 22.00% 8.98% 30.98%
$165,001 - $315,000 24.00% 8.98% 32.98%
$315,001 - $400,000 32.00% 8.98% 40.98%
$400,001 - $600,000 35.00% 8.98% 43.98%
$600,001 - 37.00% 8.98% 45.98%
Taxable income Federal rate State rate Combined rate
$0 - $1,598 10.00% 0.36% 10.36%
$1,599 - $3,196 10.00% 0.72% 10.72%
$3,197 - $6,392 10.00% 2.43% 12.43%
$6,393 - $9,525 10.00% 4.50% 14.50%
$9,526 - $14,382 12.00% 4.50% 16.50%
$14,383 - $23,970 12.00% 6.12% 18.12%
$23,971 - $31,960 12.00% 6.48% 18.48%
$31,961 - $38,700 12.00% 6.80% 18.80%
$38,701 - $47,940 22.00% 6.80% 28.80%
$47,941 - $71,910 22.00% 7.92% 29.92%
$71,911 - $82,500 22.00% 8.98% 30.98%
$82,501 - $157,500 24.00% 8.98% 32.98%
$157,501 - $200,000 32.00% 8.98% 40.98%
$200,001 - $300,000 35.00% 8.98% 43.98%
$300,001 - 37.00% 8.98% 45.98%
Taxable income Federal rate State rate Combined rate
$0 - $1,598 10.00% 0.36% 10.36%
$1,599 - $3,196 10.00% 0.72% 10.72%
$3,197 - $6,392 10.00% 2.43% 12.43%
$6,393 - $13,600 10.00% 4.50% 14.50%
$13,601 - $14,382 12.00% 4.50% 16.50%
$14,383 - $23,970 12.00% 6.12% 18.12%
$23,971 - $31,960 12.00% 6.48% 18.48%
$31,961 - $47,940 12.00% 6.80% 18.80%
$47,941 - $51,800 12.00% 7.92% 19.92%
$51,801 - $71,910 22.00% 7.92% 29.92%
$71,911 - $82,500 22.00% 8.98% 30.98%
$82,501 - $157,500 24.00% 8.98% 32.98%
$157,501 - $200,000 32.00% 8.98% 40.98%
$200,001 - $500,000 35.00% 8.98% 43.98%
$500,001 - 37.00% 8.98% 45.98%

Iowa State standard deduction 2018

Filing status Standard deduction
Single $2,030
Married, filing jointly $5,000
Married, filing separately $2,030
Head of Household $2,030

Iowa State Exemption 2018

Filing statusTax Credit
Single $40
Married, filing jointly $80
Married, filing separately $40
Head of Household $40

Iowa State Dependant exemption 2018

Dependant Tax Credit $40