How to Do North Carolina State Taxes as a Small Business

Jennifer L'Estrange
February 4, 2025

North Carolina offers a relatively straightforward tax system for small businesses, featuring a flat corporate income tax, state sales taxes, and employer tax obligations. Understanding your tax responsibilities is crucial for compliance and maximizing your business’s financial efficiency. This guide provides a practical overview of state tax obligations for North Carolina small businesses and includes a link to additional resources on federal business taxes.

Table of Contents: 

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

Understanding Business Structures and Taxation in North Carolina

Your business structure determines how you will be taxed at the state level. Here’s a breakdown of North Carolina’s taxation system for different business structures:

1. Sole Proprietorship

  • Definition: A business owned and operated by one individual.
  • Taxation: Sole proprietors report business income on their personal state tax returns using Form D-400. North Carolina has a flat 4.5% personal income tax rate for 2024.

2. Limited Liability Company (LLC)

  • Definition: A flexible structure offering liability protection.
  • Taxation:
    • Single-member LLCs are taxed as sole proprietorships by default.
    • Multi-member LLCs are taxed as partnerships and must file Form D-403 (NC Partnership Tax Return).
    • LLCs electing to be taxed as C Corporations must file corporate income tax returns.

3. S Corporation (S Corp)

  • Definition: A corporation that passes income, losses, deductions, and credits to shareholders.
  • Taxation: S Corps file Form CD-401S, while shareholders report income on personal tax returns.

4. C Corporation (C Corp)

  • Definition: A separate legal entity from its owners.
  • Taxation: C Corporations file Form CD-405 and pay North Carolina’s 2.5% corporate income tax (one of the lowest corporate tax rates in the U.S.).

Key State Taxes for North Carolina Small Businesses

1. Personal Income Tax

  • Rate: North Carolina imposes a flat 4.5% income tax on individuals.
  • Application: Sole proprietors, LLC members, and S Corp shareholders report business income on personal tax returns.

2. Corporate Income Tax

  • Rate: 2.5% corporate income tax rate (one of the lowest in the country).
  • Application: Applies to C Corporations and LLCs electing corporate taxation.

3. Sales and Use Tax

4. Employer Payroll Taxes

Essential Tax Forms for North Carolina Small Businesses

  • Form D-400: Individual Income Tax Return for sole proprietors and LLC members.
  • Form D-403: Partnership Income Tax Return for multi-member LLCs and partnerships.
  • Form CD-401S: S Corporation Income Tax Return.
  • Form CD-405: Corporate Income Tax Return for C Corporations.
  • Form E-500: Sales and Use Tax Return.
  • Form NC-5: Employer’s Quarterly Withholding Tax Return.
  • Form NCUI 101: Unemployment Insurance Tax Report.

Steps to Filing North Carolina State Taxes

  1. Register Your Business
  2. Collect and Remit Sales Tax
    • Businesses selling taxable goods or services must collect and remit sales tax using Form E-500.
  3. File Income and Business Taxes
    • Sole proprietors and LLC members file personal income tax returns using Form D-400.
    • Partnerships and S Corps file Form D-403 or Form CD-401S, respectively.
    • C Corporations file Form CD-405 for corporate income tax.
  4. File Employer Payroll Taxes
    • Employers must report wages and payroll taxes quarterly using Form NC-5 and unemployment insurance contributions via Form NCUI 101.
  5. Maintain Accurate Records
    • Keep thorough records of income, expenses, and tax payments for audit protection and tax deductions.

Common Pitfalls to Avoid

  • Failing to Register: Businesses must register with the North Carolina Department of Revenue before collecting sales tax or hiring employees.
  • Overlooking County Sales Taxes: Different counties have varying local tax rates. Check applicable tax rates in your county.
  • Missing Estimated Tax Payments: Business owners earning more than $1,000 in taxable income must make quarterly estimated tax payments.
  • Misclassifying Workers: North Carolina monitors worker classification closely—misclassifying employees as independent contractors can result in penalties.

Recent Changes Impacting 2024 Tax Filings in North Carolina

  1. Lowered Income Tax Rate
  2. Corporate Income Tax Phase-Out
  3. Remote Seller and Marketplace Facilitator Sales Tax Compliance
  4. New Small Business Property Tax Exemptions

Additional Resources

For more details on handling federal tax obligations alongside state taxes, check out our guide on federal business taxes.

Conclusion

Navigating North Carolina’s tax system requires an understanding of business structure, tax deadlines, and compliance requirements. By filing correctly, taking advantage of tax reductions, and keeping up with recent changes like the corporate tax phase-out and remote seller compliance, small businesses can remain compliant while optimizing their financial strategy.

For personalized assistance, consider consulting a tax professional experienced in North Carolina tax laws to ensure compliance and maximize tax savings.

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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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