LLC vs S-Corp in Colorado: Which Is Right for Your Business?

One of the most common questions we hear from Colorado business owners is whether they should be an LLC or an S-Corp. The answer depends on your revenue, how you pay yourself, and your growth plans. Here is a straightforward breakdown.

Understanding the Basics

An LLC (Limited Liability Company) is a legal entity formed with the state. It provides liability protection and flexible tax treatment. By default, a single-member LLC is taxed as a sole proprietorship, and a multi-member LLC is taxed as a partnership.

An S-Corp is a tax election, not a legal entity. You form an LLC (or corporation) and then elect S-Corp tax treatment with the IRS by filing Form 2553. This changes how your income is taxed — not your legal structure.

The Self-Employment Tax Question

This is the primary reason business owners consider the S-Corp election. As a default LLC, all your net business income is subject to self-employment tax (15.3% for Social Security and Medicare).

With an S-Corp election, you pay yourself a reasonable salary (subject to payroll taxes), and the remaining profit passes through as a distribution — not subject to self-employment tax.

Example: If your LLC earns $150,000 in profit:

• As a default LLC: You pay ~$21,200 in self-employment tax on the full amount
• As an S-Corp with a $75,000 salary: You pay ~$11,475 in payroll taxes, saving roughly $9,700

When an S-Corp Makes Sense

The S-Corp election typically becomes beneficial when:

• Your net business income consistently exceeds $60,000-$80,000 per year
• You can pay yourself a reasonable salary that is meaningfully less than total profit
• You are comfortable with the additional administrative requirements (payroll, quarterly filings)

When to Stay as an LLC

An LLC with default tax treatment is often better when:

• Your business is newer and income is still variable
• Net income is below $60,000-$70,000 per year (savings do not justify the added cost)
• You want maximum simplicity in your tax filing
• You reinvest most profits back into the business

Colorado-Specific Considerations

Colorado does not have a separate state-level S-Corp tax, so the federal election flows through to your Colorado return without additional state fees. However, Colorado does require:

• Annual periodic report filing with the Secretary of State ($10 on time, $50 if late)
• State income tax on pass-through income at 4.4%
• Local jurisdiction taxes in some Colorado cities (Denver, Aurora, etc.)

The Administrative Reality

S-Corp status adds real obligations:

• Payroll: You must run regular payroll for yourself, including withholding and quarterly filings
• Reasonable compensation: The IRS requires your salary to be "reasonable" for your role and industry
• Separate finances: Strict separation of business and personal finances is even more important
• Additional tax forms: S-Corp returns (Form 1120-S) are more complex than Schedule C

Our Recommendation

Do not make this decision based on a blog post or a friend's advice. The right answer depends on your specific numbers, your industry, your growth trajectory, and your tolerance for administrative complexity.

A quick analysis with a CPA — ideally one who knows Colorado's tax landscape — can give you a clear recommendation backed by your actual financial data. At Unify CPA, we run the numbers for clients regularly and often find that the conventional wisdom does not apply to every situation.