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Tax Resources for Accountants and Small Businesses (U.S.)

Indiana 2025Individual Income Tax Forms

Updated ·

Indiana individual income taxes are administered by the Indiana Department of Revenue (DOR). This page provides official resources for Indiana individual income tax forms for tax year 2025 (filed in 2026), including online filing, primary returns, schedules, estimated payments, and taxpayer assistance.

File Indiana Income Tax Online (2025)

Indiana offers secure electronic filing and payment through its official online system, INTIME.

  • INTIME (official online filing & payments):
    https://intime.dor.in.gov/
  • File your Indiana individual income tax return online
  • Make estimated and extension payments
  • View notices and manage your tax account

Quick Links (Official Indiana DOR)

Indiana Individual Income Tax Forms (2025)

Use the appropriate form based on your filing situation.
Additional schedules may be required depending on income, credits, and local taxes.

Form Description Official source
Form IT-40 Indiana Full-Year Resident Individual Income Tax Return
Access IT-40 (official forms page)
Form IT-40PNR Indiana Part-Year or Nonresident Individual Income Tax Return
Access IT-40PNR (official forms page)
Schedule IN-ED Indiana Deductions Schedule
Access IN-ED schedule
County Tax Schedules County income tax calculations and attachments
Access county tax schedules

Estimated Payments & Amendments (2025)

Indiana Individual Income Tax Deadlines (Tax Year 2025)

  • Return due date: April 15, 2026
  • Extension deadline: October 15, 2026 (if approved)
  • Estimated payment due dates:
    April 15, 2026; June 15, 2026; September 15, 2026; January 15, 2027

Indiana Taxpayer Resources (2025)

Disclaimer

This page provides links to official Indiana Department of Revenue resources for informational purposes only. Tax laws, forms, and filing requirements may change. Always verify details on the official Indiana DOR website or consult a qualified tax professional.

Disclaimer
The information provided on Accounting Portal is for general informational and educational purposes only and does not constitute professional accounting, tax, financial, or legal advice. While we strive for accuracy and timeliness, no representation or warranty is made regarding completeness or reliability. Always consult a qualified professional before making any business, tax, or financial decisions. Neither Accounting Portal nor its authors are liable for any loss or damage resulting from the use of this information.

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