
Part of the series: 10 Small Business Tax Mistakes (Based on IRS Guidance)
Worker classification is an important part of complying with federal tax rules.
IRS Publication 15-A explains that businesses must determine whether workers are employees or independent contractors based on common law rules. This determination affects how wages are reported and whether employment taxes must be withheld.
When workers are incorrectly classified, businesses may face additional tax liability, penalties, and interest.
Why This Happens
Many small businesses hire independent contractors for flexibility or simplicity.
In some cases, businesses may assume that issuing a Form 1099 automatically classifies a worker as an independent contractor. However, classification depends on how the working relationship is structured, not simply how payments are reported.
Without understanding the IRS guidelines, businesses may unintentionally misclassify workers.
IRS Requirements
IRS Publication 15-A outlines the common law rules used to determine worker classification.
These rules consider several factors, including:
- Behavioral control – whether the business directs how the work is performed
- Financial control – how the worker is paid and whether they have unreimbursed expenses or investment in their work
- Type of relationship – whether benefits, contracts, or ongoing relationships exist
These factors help determine whether a worker should be treated as an employee or an independent contractor for tax purposes.
Why This Creates Problems
Improper worker classification can lead to several compliance issues.
- Employment tax liability
If a worker is incorrectly classified as an independent contractor, the business may still be responsible for payroll taxes.
- Penalties and interest
Misclassification can result in penalties, interest, and additional reporting requirements.
- Reporting corrections
Businesses may need to correct previously filed forms if classification errors are discovered.
Best Practices
Businesses should evaluate worker relationships in accordance with IRS guidelines before determining how workers will be classified.
Understanding the level of control over the worker’s tasks, financial arrangements, and working relationship can help businesses make accurate classification decisions.
When there is uncertainty, reviewing the IRS guidance or consulting a tax professional can help clarify the correct classification.
Steps to Take
- Review the IRS common law rules described in Publication 15-A.
- Evaluate worker relationships based on behavioral control, financial control, and the type of relationship.
- Maintain documentation that supports the classification decision.
- Seek professional guidance if worker classification is unclear.
Continue the Series
Next → Small Business Tax Mistake #6: Not Using Available Tax-Deferred Accounts
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