Filing your Ohio tax return for 2020 may seem overwhelming, but the process becomes easier with the proper guidance. This guide is designed to help individuals, sole proprietors, and small business owners understand each step of the filing process. It draws on official guidance from the Ohio Department of Taxation to ensure accuracy, so you can feel confident that your return is complete and compliant.

For the 2020 tax year, you must file if you are an Ohio resident, a part-year resident, or a nonresident who earned Ohio-sourced income. This includes wages earned in Ohio, income from a sole proprietorship, and certain gambling winnings. Filing on time is vital because it helps you avoid penalties, claim any refund you are owed, and maintain good standing with the state. Even if you qualify for exemptions, there may be reasons to file, such as school district income tax obligations.

Whether you choose to e-file or submit a paper return, knowing the required forms, deadlines, and payment options will save time and prevent errors. This article will walk you through every step—from gathering tax information to tracking your refund—so you can file efficiently. With clear instructions and practical tips, you will be ready to confidently prepare and submit your Ohio return for the 2020 tax year.

Overview of Ohio State Income Tax for 2020

The Ohio state income tax for 2020 included several changes that affected who must file and how much tax they owe. Ohio adjusted its tax brackets so that individuals with taxable nonbusiness income of $22,150 or less were not subject to income tax. The year also saw the introduction of new credits and deductions, such as the Lead Abatement Credit and the Ohio Educator Deduction, which can reduce your tax liability if you qualify.

If you lived in Ohio for a whole year or part of a year or were a nonresident who earned money in Ohio, you need to file an Ohio income tax return. This can include money made in Ohio from work, the Ohio lottery or casino games, property in Ohio, or a sole proprietorship or pass-through business that does business there. Certain exemptions apply, but even if your income is below the threshold, you may still need to file for purposes such as the school district income tax.

The regular filing deadline for the 2020 tax year was April 15, 2021, but it was extended to May 17, 2021, to align with IRS changes. If you got an extension, you had until October 15, 2021, to send in your return. It is important to remember that an extension to the filing does not extend the time to pay. Late payments may result in interest and penalties, so plan to pay any balance you owe by the original due date.

Required Forms and Schedules

The first step in filing your Ohio tax return for 2020 is to use the proper forms. The Ohio IT 1040 is the main form for filing your individual income tax. It shows your income, exemptions, deductions, and credits. You must also file the SD 100 School District Income Tax Return if you live in a school district that taxes its residents. Taxpayers without liability and not requesting a refund may qualify to use the IT-10 form as a simplified option.

Several schedules may be required depending on your situation. Schedule A shows changes to your federal adjusted gross income, such as additions or deductions. Schedule IT BUS applies if you have business income and want to claim the business income deduction. Other standard schedules include the Schedule of Credits for claiming nonrefundable and refundable credits, the Schedule of Dependents for listing dependents, and the Schedule of Withholding to report taxes withheld from wages, gambling winnings, or other income.

Payment vouchers are necessary if you owe tax and submit payment by check or money order. These include the IT 40P for original returns, the IT 40XP for amended returns, and the SD 40P and SD 40XP for school district taxes. You can find these forms on the Ohio Department of Taxation website, by calling 800 282 to request them by mail, or through the Innovate Ohio platform. Always use forms for the correct tax year—do not alter the year on an older form.

How to Complete the Ohio IT 1040 Step-by-Step

Filling out the Ohio IT 1040 correctly ensures your tax return is accurate and processed without delays. Follow these steps to prepare your return, whether you plan to e-file or submit a paper version.

1. Gather All Required Documents

Before starting, collect the following:

  • Federal tax return for 2020 (Form 1040 or 1040-SR).
  • W-2 forms showing wages and Ohio tax withheld.
  • 1099 forms for interest, dividends, unemployment, retirement, or other income.
  • Schedule K-1 forms if you received income from partnerships, S corporations, estates, or trusts.
  • Records of the estimated taxes paid during the year.
  • Dependent information, such as Social Security numbers and dates of birth.
  • Proof of any credits or deductions you want to claim.

2. Complete the Header Information

  • Enter your name, address, and Social Security number.
  • Choose your filing status, which must be the same as your federal return.
  • Please let us know if you are a full-year resident, a part-year resident, or a nonresident.
  • If part-year or nonresident, include the dates you lived in Ohio.

3. Report Your Income and Adjustments

  • Line 1: Enter your federal adjusted gross income from Form 1040.
  • Line 2: Adjust for Ohio additions and deductions using Schedule A.
  • Line 3: Figure out your adjusted gross income for Ohio.

4. Apply Exemptions and Calculate Taxable Income

  • Enter your exemption amount based on your Ohio adjusted gross income:
    • $2,400 per exemption if $40,000 or less.
    • $2,150 per exemption if between $40,001 and $80,000.
    • $1,900 per exemption if over $80,000.
  • Subtract exemptions from your adjusted gross income to find your taxable income.

5. Report Business Income

If you have business income, complete Schedule IT BUS:

  • Enter all business income from sole proprietorships, rental properties, and farms.
  • Claim the business income deduction (up to $250,000, or $125,000 if married filing separately).
  • Calculate the tax on any business income above the deduction at the flat 3% rate.

6. Calculate Your Ohio Income Tax

  • Use the tax tables to determine the tax on nonbusiness income.
  • Add business income tax from Schedule IT BUS.
  • Subtract nonrefundable credits from the Schedule of Credits.
  • Add any interest penalty for not paying enough estimated taxes.

7. Report Payments and Refundable Credits

  • Include withholding amounts from W-2s, 1099s, and the Schedule of Withholding.
  • Enter estimated and extended payments made during the year.
  • Add refundable credits from the Schedule of Credits.

8. Determine Your Refund or Amount Owed

  • If payments and credits exceed your tax, the difference is your refund.
  • If the tax exceeds payments and credits, you owe the balance.
  • Choose direct deposit for refunds or include a payment if you owe money.

9. Review and Sign

  • Double-check all figures and ensure all required forms are attached.
  • Put your name and the date on the return. If filing jointly, both spouses must sign.
  • Keep a copy for your records.

Common Mistakes to Avoid

  • Using the wrong year’s form.
  • Forgetting to attach required schedules or W-2s for paper returns.
  • Entering incorrect Social Security numbers.
  • Miscalculating exemptions or credits.
  • Not signing the return before submission.

Filing Methods and Options

Ohio offers multiple ways to file your 2020 tax return, allowing you to choose the best method. Whether you e-file or submit a paper return, following the state’s requirements is essential to avoid delays.

Electronic Filing (E-File)

Filing electronically through the Ohio Department of Taxation or approved tax preparation software offers several advantages:

  • Faster processing: Refunds are typically issued within 15 business days.
  • Higher accuracy: Built-in error checks reduce mistakes.
  • Security: Your tax information is transmitted directly through encrypted channels.
  • Immediate confirmation: You receive notice that your return was received.

Options for e-filing include:

  • Ohio Department of Taxation’s Online Services.
  • Commercial tax preparation software with Ohio filing capability.
  • A tax professional who submits your return electronically.
  • IRS Free File providers that include Ohio returns at no cost for qualifying taxpayers.

Paper Filing

If you prefer or need to file a paper return:

  • Use the correct 2020 forms for your return.
  • Attach copies of W-2s, 1099s, and other required documents.
  • Include the Schedule of Withholding if applicable.
  • If payment is due, attach the proper payment voucher and check.
  • Mail your return to the correct address based on whether you are sending a payment.

Mailing Addresses:

  • With Payment: Ohio Department of Taxation, P.O. Box 2057, Columbus, OH 43270-2057.
  • Without Payment: Ohio Department of Taxation, P.O. Box 2679, Columbus, OH 43270-2679.

Filing an Amended Return

To correct a previously filed 2020 return:

  • Complete a new Ohio IT 1040 for tax year 2020.
  • At the top, check the box that says "Amended Return."
  • Include Form IT RE explaining the reason for the change.
  • Attach any additional documentation and the payment voucher IT 40XP if you owe money.

How to Make a Tax Payment

If you owe money on your 2020 Ohio tax return, the Ohio Department of Taxation offers several secure payment options. Choosing the correct method can help you avoid late fees and ensure your payment is processed on time.

Payment Options

  • Electronic Check
    Allows funds to be withdrawn directly from your checking or savings account.
    No convenience fee applies.
    Available through the Ohio Department of Taxation’s Online Services.
  • Credit or Debit Card
    You can use Discover, Visa, MasterCard, or American Express.
    The payment processor charges a fee for your convenience.
    You can't set a date for a future transaction.
  • Money Order or Check
    Make payable to “Ohio Treasurer of State.”
    Include your Social Security number and “2020 IT 1040” on the memo line.
    Send with the appropriate payment voucher (IT 40P for original returns, IT 40XP for amended returns).
  • Phone Payment
    Call 800-272-9829 and use jurisdiction code 6446.
    Credit or debit card only (fee applies).
    Get your tax information ready before you call.

Deadlines and Penalties

  • The original due date for 2020 payments was April 15, 2021, and was extended to May 17, 2021.
  • Payments made after the due date may accrue interest and penalties.
  • An extension to the file does not give you more time to pay.

If You Can’t Pay in Full

  • File your return on time to avoid the failure-to-file penalty.
  • Pay as much as you can with your return to reduce interest charges.
  • Contact the Ohio Department of Taxation at 800-282-1780 to discuss payment plan options.
  • Use available resources to explore ways to manage your tax debt.

Tracking Your Refund or Balance Due

Once you file your 2020 Ohio tax return, keeping track of your refund or verifying any remaining balance you owe is essential. The Ohio Department of Taxation provides several tools to help you find this information quickly.

How to Find Out the Status of Your Refund

  • Online: Go to the Ohio Department of Taxation's website and use their Refund Status tool.
  • Phone: Call the Ohio Refund Hotline at 800-282-1784.

You’ll need:

  • Your number for Social Security.
  • Your return shows the exact amount of your refund.

Typical Processing Times:

  • E-filed returns with direct deposit: About 15 business days.
  • Paper returns: About 8–10 weeks.
  • Amended returns: Up to 3 months.

How to Verify a Payment or Balance Due

  • Online: Log into OH|TAX eServices via the Innovate Ohio platform.
  • Phone: Call 800-282-1780 to reach the Ohio Department of Taxation.
  • Email: Use the secure contact form in OH|TAX eServices.

When to Contact the Ohio Department of Taxation

  • Your refund hasn’t arrived within the standard processing time.
  • The Refund Status tool instructs you to call.
  • You’ve received a notice about your return that may be incorrect.
  • You need to confirm that a payment was received or discuss payment arrangements.

Final Filing Checklist

Before submitting your 2020 Ohio tax return, review these critical steps for a few minutes. A careful final review can save time, prevent delays, and reduce the risk of penalties.

Pre-Submission Checks

  • Confirm you are using the correct 2020 tax forms.
  • Verify that all names and Social Security numbers are accurate and match official records.
  • Double-check your calculations, especially taxable income, credits, and refund amounts.
  • Make sure you have signed and dated your return. Both spouses must sign if they file together.

Attach Required Documents

  • W-2s, 1099s, and other forms showing Ohio tax withheld.
  • All required schedules, including Schedule A, Schedule IT BUS, Schedule of Credits, and Schedule of Withholding.
  • Proof of any credits or deductions claimed.
  • Use the payment voucher and check if you owe money and are paying by mail.

Special Steps for Small Business Owners

  • Ensure the Schedule IT BUS is complete and accurate.
  • Include documentation for all business income and expenses.
  • Verify withholding reports if you have employees.

After Filing

  • Keep a copy of your return and supporting documents for at least four years.
  • Track your refund or confirm payment if you owe a balance.
  • Make a note of next year’s deadlines to avoid late filings.

Frequently Asked Questions

What if I missed the filing deadline for May 17, 2021?

Suppose you missed the 2020 Ohio tax return deadline without an extension. File as soon as possible to lower the interest and penalties. The penalty for not filing can be very high if you owe money. You won't be penalized for filing late if you are due a refund, but you must file within four years of the original due date to get it.

Can I e-file my 2020 Ohio tax return for free?

Many taxpayers qualify for free e-file options through the Ohio Department of Taxation’s Online Services or the IRS Free File program. Eligibility depends on income, age, or military status, and using an approved platform helps ensure your return is filed accurately and securely. Visit the Ohio Department of Taxation website for free filing resources and links to trusted tax preparation software providers.

What are the most commonly missed deductions for Ohio taxpayers?

Commonly missed deductions include the business income deduction, retirement income credit, lump sum retirement credit, Ohio educator expenses beyond the federal limit, and college tuition expenses eligible for the Ohio College Opportunity Credit. Some taxpayers also overlook unreimbursed medical expenses. Reviewing Ohio tax information carefully before filing helps ensure you claim all deductions you qualify for, maximize your refund, or reduce the amount you owe.

How do I request an extension for my Ohio tax return?

Ohio accepts IRS extensions, so you don't need to ask for a separate state extension. If you obtained a federal extension, your Ohio filing deadline is extended to October 15, 2021. Include a copy of your IRS extension form with your Ohio return. Remember that an extension to the file does not extend the deadline to pay, so any balance you owe must be paid by May 17, 2021.

Can I file jointly if I moved in or out of Ohio mid-year?

Yes, if you file a joint federal tax return, you generally file a joint Ohio return, even if one spouse moved in or out of the state. In such cases, you may need to allocate income using the part-year resident or nonresident credit to ensure only Ohio-sourced income is taxed. Carefully review the residency rules and complete the nonresident statement if applicable to your situation.

How do I handle taxes if I worked remotely in Ohio due to COVID-19?

For 2020, temporary legislation treated income earned while working from home in Ohio due to COVID-19 as earned at your regular work location. This rule affected many nonresidents and residents who commuted before the pandemic. Review your W-2 and employer withholding information carefully. If you believe your withholding was incorrect, you may need to file an amended return to adjust your Ohio tax liability.

Do I have to file a tax return for the Ohio school district?

You must file the SD 100 School District Income Tax Return if you live in a school district with an income tax, even if you don't have to pay the Ohio IT 1040. To be sure, compare your address to the list in the Ohio tax instructions. If you moved between taxing districts during the year, you may have to file multiple school district returns.