Indiana Quarterly Tax Calculator
Calculate your estimated quarterly tax payments for federal and Indiana state taxes. Designed for self-employed individuals, freelancers, and independent contractors.
IN State Tax: Flat 3.0%
Quarterly Payment Amount
$6,160
Per quarter (4 remaining)
Annual Tax Breakdown
2026 Payment Schedule
Jan 1 - Mar 31
Due: April 15, 2026
$6,160
Apr 1 - May 31
Due: June 15, 2026
$6,160
Jun 1 - Aug 31
Due: September 15, 2026
$6,160
Sep 1 - Dec 31
Due: January 15, 2027
$6,160
Don't miss your quarterly payments!
The IRS may charge penalties and interest if you underpay or pay late. Consider setting up automatic payments or calendar reminders.
Indiana Quarterly Tax Highlights
Indiana has a flat 3.05% state income tax rate
One of the lowest flat tax rates in the country
Counties may add local income tax (0.5% to 3%)
Use Form IT-40ES for quarterly payments
Indiana Quarterly Tax FAQ
What is Indiana's income tax rate?
Indiana has a flat 3.05% state income tax rate. However, most counties add a local income tax ranging from 0.5% to about 3%, so your total rate may be higher depending on where you live.
Official References
This calculator uses current federal and Indiana tax rates and schedules:
- IRS Estimated Tax Guidelines
Federal quarterly tax requirements and Form 1040-ES
- Indiana Department of Revenue
Official Indiana tax authority
- IRS Self-Employment Tax
Social Security and Medicare tax information
This calculator provides estimates based on 2026 tax rates. Your actual tax liability may vary based on deductions, credits, and other factors. Consult a tax professional for personalized advice.