Iowa Payroll Withholding
Effective January 1, 2020

Annual EarningsAddonRate
$0.00$0.000.33%
$1,480.00$4.880.67%
$2,959.00$14.792.25%
$5,918.00$81.374.14%
$13,316.00$387.655.63%
$22,193.00$887.435.96%
$29,590.00$1,328.296.25%
$44,385.00$2,252.987.44%
$66,578.00$3,904.148.53%

Standard deduction:
0-1 allowances: $1,8800.00
2+ allowances: $4,630.00

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