Indiana Payroll Taxes: 2026 Employer Guide
Quick Facts
Key payroll tax details at a glance.
State Income Tax
Flat (up to 2.95%)
SUI New Employer Rate
2.5%
SUI Wage Base
$9,500 per employee
SUI Rate Range
0.5% to 7.4%
Employee SUI Contribution
No
Local Taxes
Yes (High complexity)
Overview: Indiana Payroll Landscape
Indiana's flat 2.95% state income tax rate is one of the lowest in the country for income-tax states. However, Indiana's 92 counties each levy their own county income tax at rates ranging from 0.5% to nearly 3%, and employers are responsible for withholding the correct county rate.
Indiana has reciprocity agreements with Kentucky, Michigan, Ohio, Pennsylvania, and Wisconsin.
Indiana State Income Tax
Withholding rates, brackets, and forms.
Tax Type
Flat
Top Rate
2.95%
Withholding Form
WH-4
Indiana Unemployment Insurance (SUI)
Employer rates, wage bases, and contribution details.
New Employer Rate
2.5%
Wage Base
$9,500 per employee
Rate Range
0.5% to 7.4%
Employee Contribution
—
Indiana SUI (State Unemployment Insurance) is an employer-paid tax that funds unemployment benefits for workers who lose their jobs. It is administered by the Indiana Department of Workforce Development. Registration: Employers must register with the Indiana Department of Workforce Development as soon as they hire their first Indiana employee. Registration can be completed online.
Indiana Local Taxes
City and county-level tax obligations.
Complexity
High
Indiana has county income taxes ranging from 0.5% to 2.976%. Employers must withhold based on employee's county of residence.
Indiana Compliance Checklist
Deadlines, filing requirements, and official resources.
Key Deadlines
Withholding deposits
Due Varies by liability
Quarterly returns (Q1)
Due April 30
Quarterly returns (Q2)
Due July 31
Quarterly returns (Q3)
Due October 31
Quarterly returns (Q4)
Due January 31
Annual reconciliation
Due January 31
W-2 state copies
Due January 31
New hire report
Due Within 20 days of start date
How Warp Handles Indiana Payroll
Warp is the only AI-native HR & Payroll platform built for ambitious companies. Instead of clicking through clunky dashboards or Indiana's .gov websites for taxes, Warp's AI agents open your Indiana tax accounts, file every payroll form, and resolve every tax notice automatically.
What Warp handles for Indiana employers:
- Indiana tax account registration and setup
- Automated income tax withholding and county tax calculations
- SUI registration and quarterly filings
- Local tax registration and compliance
- Annual W-2 and reconciliation filing
- Tax notice resolution directly with Indiana agencies, so you never spend hours on hold
Every Warp customer gets a dedicated Account Manager and Benefits Advisor included to guide them through payroll setup.
If you don't want to deal with navigating Indiana .gov portals, check out a demo of Warp to see how we can help you stop worrying about compliance and get back to building.
Tax data last verified: March 12, 2026