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October 26, 2022

Indiana Department of Revenue announces that five counties have increased their income tax rates effective October 1, 2022

Effective October 1, 2022, the Indiana Department of Revenue announced that the following five counties have increased their income tax rates:

  • Boone County: 0.017 (increased from 0.015)
  • Johnson County: 0.014 (increased from 0.012)
  • Knox County: 0.017 (increased from 0.012)
  • LaPorte County: 0.0145 (increased from 0.0095)
  • Monroe County: 0.02035 (increased from 0.01345)

All Indiana county income tax rates are available in Departmental Notice #1 (rev. October 1, 2022). Note that the October 1 update includes withholding instructions for the new adopted-child exemption.

Indiana county income tax withholding applies to employees who live or work in any of these counties. County income tax rates for residents are based on the employee's Indiana county of residence on January 1, 2022; for nonresidents, county income tax rates are based on the individual's county of principal business or employment on January 1, 2022.


Contact Information

For additional information concerning this Alert, please contact:

Workforce Tax Services - Employment Tax Advisory Services
   • Kristie Lowery (
   • Kenneth Hausser (
   • Debera Salam (



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