How to Do 2024 Ohio State Taxes as a Small Business

Jennifer L'Estrange
January 7, 2025

Ohio’s tax landscape offers a mix of flat income tax rates, sales taxes, and business-specific obligations that small businesses must navigate. Understanding these state-specific taxes is essential for compliance and financial health. This guide provides a practical overview tailored to small businesses in Ohio and includes a link to additional resources on federal business taxes.

Table of Contents: 

  1. Understanding Business Structures and Taxation in Ohio
  2. Key State Taxes for Ohio Small Businesses
  3. Essential Tax Forms for Ohio Small Businesses
  4. Steps to Filing Ohio State Taxes
  5. Common Pitfalls to Avoid
  6. Recent Changes Impacting 2024 Tax Filings in Ohio
  7. Federal Taxes for Small Businesses

Understanding Business Structures and Taxation in Ohio

The structure of your business determines your tax responsibilities. Here’s how Ohio taxes common business structures:

1. Sole Proprietorship

  • Definition: A business owned and operated by one individual.
  • Taxation: Sole proprietors report business income on their personal state income tax return using Form IT 1040. Ohio’s personal income tax rates range from 0% to 3.99%, depending on taxable income.

2. Limited Liability Company (LLC)

  • Definition: A flexible structure offering liability protection.
  • Taxation:
    • Single-member LLCs are taxed as sole proprietorships.
    • Multi-member LLCs are taxed as partnerships and file Form IT 4708 for composite income tax returns on behalf of nonresident members.
    • LLCs electing corporate taxation are subject to Ohio’s Commercial Activity Tax (CAT).

3. S Corporation (S Corp)

  • Definition: A corporation that passes income, losses, deductions, and credits to shareholders.
  • Taxation: S Corps file Form IT 4708 for composite returns for nonresident shareholders and pay the CAT. Shareholders report their income on personal tax returns.

4. C Corporation (C Corp)

  • Definition: A separate legal entity from its owners.
  • Taxation: C Corps are subject to Ohio’s Commercial Activity Tax (CAT) and file corporate income tax returns at the federal level.

Key State Taxes for Ohio Small Businesses

Ohio imposes several taxes that small businesses must comply with:

1. Personal Income Tax

  • Rate: Ohio’s personal income tax rates range from 0% to 3.99%, depending on income brackets.
  • Application: Sole proprietors, LLC members, and S Corp shareholders report business income on their personal returns using Form IT 1040.

2. Commercial Activity Tax (CAT)

  • Rate: The CAT applies to gross receipts exceeding $150,000 annually:
    • $150 annual minimum tax for businesses with receipts between $150,000 and $1 million.
    • Additional rates apply to businesses with receipts exceeding $1 million.
  • Application: Applies to all businesses except sole proprietors earning less than $150,000 annually. File using Form CAT 1.

3. Sales and Use Tax

  • Rate: Ohio’s base sales tax rate is 5.75%, with additional county sales taxes ranging from 0.25% to 2.25% (Ohio Department of Taxation).
  • Application: Businesses selling taxable goods or services must collect and remit sales tax.

4. Employer Payroll Taxes

Essential Tax Forms for Ohio Small Businesses

  • Form IT 1040: Individual Income Tax Return for personal income taxes, including sole proprietors and LLC members.
  • Form IT 4708: Composite Income Tax Return for partnerships, S Corps, and multi-member LLCs with nonresident members.
  • Form CAT 1: Commercial Activity Tax Return for businesses subject to the CAT.
  • Form ST 10: Sales and Use Tax Return for quarterly filings.
  • Form JFS 20100: Quarterly Contribution Report for unemployment insurance taxes.

Steps to Filing Ohio State Taxes

  1. Register Your Business
    • Register your business with the Ohio Department of Taxation via the Ohio Business Gateway to obtain necessary permits for sales tax, CAT, and employer withholding taxes.
  2. Collect and Remit Sales Tax
    • Collect applicable state and county sales taxes for taxable goods and services. File Form ST 10 quarterly to report and remit sales tax.
  3. File Income and CAT Returns
    • Sole proprietors and LLC members file personal income tax returns using Form IT 1040.
    • Partnerships, S Corps, and multi-member LLCs file composite returns using Form IT 4708.
    • Businesses subject to the CAT file Form CAT 1 annually or quarterly, depending on gross receipts.
  4. File Employer Payroll Taxes
    • Employers must file withholding tax returns and unemployment insurance reports quarterly using Form JFS 20100.
  5. Maintain Accurate Records
    • Keep thorough records of all income, expenses, and tax payments to ensure compliance and facilitate accurate filings.

Common Pitfalls to Avoid

  • Failing to Register: Unregistered businesses cannot legally collect sales tax or operate in Ohio.
  • Overlooking County Sales Taxes: Each Ohio county has additional sales tax rates. Confirm applicable rates for your location.
  • Missing Deadlines: Late filings incur penalties and interest. Use a tax calendar to stay on top of due dates.
  • Incorrect Worker Classification: Misclassifying employees as contractors can result in audits and penalties.

Recent Changes Impacting 2024 Tax Filings in Ohio

Income Tax Rate Reductions:

  • For 2024, Ohio has continued to phase in reductions to its personal income tax rates, with the top rate set at 3.99%, benefiting small business owners filing as sole proprietors or LLC members.

Increased CAT Threshold:

  • The threshold for the Commercial Activity Tax remains at $150,000, but discussions for increasing the threshold are ongoing.

Sales Tax Nexus for Remote Sellers:

  • Businesses outside Ohio must register and remit sales tax if they exceed $100,000 in gross receipts or conduct 200 or more transactions with Ohio residents annually.

Additional Resources

For a broader understanding of federal tax obligations, check out our guide on federal business taxes.

Conclusion

Navigating Ohio’s tax system requires a thorough understanding of your business structure, tax obligations, and deadlines. By staying organized and keeping up with recent changes like the CAT threshold and income tax reductions, you can optimize your tax filings and maintain compliance.

For personalized support, consult a tax professional experienced in Ohio state taxes to ensure your business thrives.

______________________

Red Clover HR is an outsourced human resources management company. To streamline your workflows, increase productivity, retention, and worker satisfaction, and to get the most out of your teams, contact Red Clover today. 

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