Iowa Payroll Withholding
Effective January 1, 2019

Annual EarningsAddonRate
$0.00$0.000.33%
$1,333.00$4.400.67%
$2,666.00$13.332.25%
$5,331.00$73.294.14%
$11,995.00$349.185.63%
$19,992.00$799.415.96%
$26,656.00$1,196.586.25%
$39,984.00$2,029.587.44%
$59,976.00$3,516.988.53%

Standard deduction:
0-1 allowances: $1,690.00
2+ allowances: $4,160.00

Tax credit per allowance: $40.00

Supplemental income: 6.00%

    Calculation formula:
  1. T1 = Gross wages - FIT withheld
  2. T2 = T1 - standard deduction
  3. T3 = T2 x R (R=Withholding tax rate)
  4. T4 = T3 - (C x N) (C=deduction per allowance, N=Number of allowances)
  5. T5 = T4 + A (A=Additional withholding)

Note(s):

  • All amounts are annual unless otherwise noted
* Indicates changes made in the past 30 days