Iowa Payroll Withholding
Effective January 1, 2021

Annual EarningsAddonRate
$0.00$0.000.33%
$1,676.00$5.530.67%
$3,352.00$16.762.25%
$6,704.00$92.184.14%
$15,084.00$439.115.63%
$25,140.00$1,005.265.96%
$33,520.00$1,504.716.25%
$50,280.00$2,552.217.44%
$75,420.00$4,422.638.53%

Standard deduction:
0-1 allowances: $2,130.00
2+ allowances: $5,240.00

Tax credit per allowance: $40.00

    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