Ohio Business State Tax Extension I Fiduciaries Filing Guide

Form IT 4708 | UPC for Pass-Through Entity/Fiduciary Income Tax  ·  Fiduciaries  ·  Business Filing Guide

• Ohio fiduciaries—including estates and trusts—are subject to state fiduciary income tax requirements, administered by the Ohio Department of Taxation. Ohio grants an automatic extension tied to an approved IRS extension, making the process simple for businesses that have already filed IRS Form 8868.
• Extension Period & Extended Deadline
• Ohio automatically grants an extension to file, provided you have obtained an approved federal extension from the IRS by filing IRS Form 8868. With a valid IRS extension, the Ohio extended deadline becomes 15-Oct-26. No separate state extension form is required—the federal extension serves as your Ohio extension.

Use the Ohio | Online Tax Extension Payment to pay electronically. For mail-in payments, use Form IT 4708 | UPC for Pass-Through Entity/Fiduciary Income Tax and send to: Ohio Department of Taxation P.O. Box 181140 Columbus, OH 43218-1140

• File IRS Form 8868 with the IRS to secure your federal extension, which Ohio automatically honors.
• Use the state online payment portal for fast, convenient electronic payment.
• Set a reminder to file your completed Ohio Fiduciaries return by 15-Oct-26.

• Ohio’s business tax extension is straightforward once your federal extension is approved. Pay any balance due on time and file your Fiduciaries return by 15-Oct-26.
• Quick Reference Table
• State Abbreviation
• OH
• State Name
• Ohio
• Business Entity Type
• Fiduciaries
• Extension Status
• Approved with Federal
• Extended Due Date
• 15-Oct-26
• Online Payment
• Ohio | Online Tax Extension Payment
• Payment Voucher Form
• Form IT 4708 | UPC for Pass-Through Entity/Fiduciary Income Tax
• State Payment Agency
• Ohio Department of Taxation
• Mailing Address with Payment
• Ohio Department of Taxation P.O. Box 181140 Columbus, OH 43218-1140

Business tax returns are complex—a licensed CPA or Enrolled Agent can maximize deductions, ensure accurate calculations, and handle filing on your behalf. Here's how working with a TaxPro typically goes:

1. 1Get matched with a verified U.S.-based CPA or Enrolled Agent
2. 2Upload your business documents via secure drag-and-drop
3. 3Review and approve your return with upfront, transparent fees
4. 4Your TaxPro files your Ohio return by 15-Oct-26

Quick Reference Table