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Startup Taxes Breakdown: LLC, C-Corp etc. - Airstrip AI

Learn about startup taxes for different business structures and save money. This offers a comprehensive breakdown of information on taxes for LLC, C-Corp, and more.

The tax implications of your chosen business structure can significantly impact your financial bottom line. This blog post gives into the key tax considerations for various business structures, helping you to make informed decisions for your startup.

Startup Taxes

The common structures of businesses

1. Limited Liability Company (LLC):

A business structure offering limited liability protection to its owners (members) and is treated as a pass-through entity for tax purposes.

2. Corporation:

A separate legal entity from its owners (shareholders) and is taxed on its profits before distributing them to shareholders as dividends.

3. S Corporation:

A specific type of corporation that meets certain qualifications and allows for pass-through taxation similar to LLCs and partnerships, but with some additional requirements and limitations. Learn more about pass-through taxation

Fundamentals of Taxation

1. Pass-through entities (LLCs, partnerships, sole proprietorships, and S corporations): These entities don't pay income tax directly. Instead, the profits or losses "pass through" to the individual owners and are reported on their personal tax returns.

Owners pay taxes on their share of the business income based on their individual tax rates. This simplifies tax filing for the business itself but can expose owners to self-employment taxes, as discussed further below.

2. C corporations: Unlike pass-through entities, C corporations are taxed separately from their owners. They pay corporate income tax on their profits, and then shareholders pay additional taxes on the dividends they receive from the corporation (double taxation).

While this structure offers limited liability protection and potential tax benefits in specific situations, it can be complex and less favorable for small businesses due to double taxation. Learn more about: Taxes for C-Corp and LLC

Taxes by business structure


LLCs are considered pass-through entities. This means the business itself doesn't pay income tax. Instead, the profits or losses "pass through" to the individual members and are reported on their personal tax returns. Members pay taxes on their share of the business income based on their individual tax rates.


  • Simpler tax filing: Avoids the need for a separate corporate tax return.
  • Avoidance of double taxation: Members only pay taxes on their share of the income once.
  • Flexibility in profit distribution: Allows for greater flexibility in allocating profits and losses among members.


  • Self-employment taxes: Members are responsible for paying self-employment taxes in addition to regular income taxes. These taxes cover Social Security and Medicare, and the current combined rate is 15.3% (as of 2024): source
  • Limited access to certain tax benefits: LLCs cannot deduct employee health insurance premiums from their taxable income, unlike C-Corps.

S Corporation:

Similar to LLCs, S corporations offer pass-through taxation, but with some limitations. S corporations can only have a limited number of shareholders, all of whom must be U.S. citizens or permanent residents.

Additionally, S corporations have stricter operational requirements compared to LLCs, such as holding annual meetings and maintaining separate payroll accounts for employees. Learn more about: Should your startup be a S-Corp?


  • Avoids double taxation: Similar to LLCs, shareholders only pay taxes on their share of the income once.
  • Limited liability protection: Offers the same protection for shareholders' personal assets as C-Corps.


  • Stricter eligibility requirements: S-Corps must meet specific qualifications, such as having a limited number of shareholders (100 as of 2024) who are all U.S. citizens or permanent residents.
  • More complex compliance requirements: S-Corps are subject to stricter operational requirements compared to LLCs, such as holding annual meetings and maintaining separate payroll accounts for employees.

C Corporation:

While C corporations offer limited liability protection and the potential for tax benefits in specific situations, such as retaining profits for reinvestment in the business, the double taxation structure can be a significant disadvantage, especially for small businesses with high profit margins.


  • Limited liability protection: Shareholders' personal assets are shielded from business liabilities.
  • Access to certain tax benefits: C-Corps can deduct employee health insurance premiums from their taxable income and may benefit from lower tax rates on long-term capital gains compared to individual tax rates.
  • Potential for raising capital: C-Corps can attract a wider range of investors compared to LLCs. Learn why Investors prefer C-Corps


  • Double taxation: Shareholders are taxed twice on corporate profits, first through corporate income tax and then again on dividends.
  • More complex tax filing: Requires filing separate tax returns for both the corporation and shareholders.
  • Potential for higher overall tax burden: Depending on the specific situation, the combined effect of corporate income tax and individual taxes on dividends might result in a higher overall tax burden compared to pass-through entities like LLCs.

Things to know

Beyond the core structure types, several other factors can influence your tax implications.

State and local taxes:

Different states and localities may have varying tax regulations for different business structures. It's crucial to research these specific regulations to ensure compliance and avoid potential tax liabilities.

Business deductions and credits:

Various tax deductions and credits are available for businesses, and the specific ones you qualify for might depend on your chosen structure and industry.

Payroll taxes:

If your business has employees, you'll be responsible for paying payroll taxes, including Social Security and Medicare taxes, regardless of the chosen business structure.

What is Pass through taxation?

Pass-through taxation refers to a system where the business itself doesn't pay income tax directly on its profits. Instead, the profits or losses of the business "pass through" to the individual owners or partners and are reported on their personal tax returns. These owners or partners then pay taxes on their share of the business income based on their individual tax rates.

Frequently Asked Questions (FAQ)

1. Which business structure is the most tax-efficient?

There's no one-size-fits-all answer, as the most tax-efficient structure depends on several factors, including:

Your business type and industry: Different industries may benefit from specific tax advantages associated with certain structures. Consulting a tax professional familiar with your industry can provide valuable insights.

Number of owners: If you plan to operate solo, a sole proprietorship is simplest, but consider self-employment taxes. If you have multiple founders, an LLC or S corporation might be preferable.

Profit distribution and growth plans: If you plan to reinvest most profits back into the business, a C corporation might offer some tax benefits. However, for most small businesses, the double taxation of C corporations makes them less favorable.

Complexity and compliance requirements: Sole proprietorships and LLCs generally have simpler filing requirements compared to S corporations and C corporations.

2. When should I consider changing my business structure?

Several situations might warrant considering a change in business structure:

Significant growth or changes in ownership: If your business experiences substantial growth or changes in ownership, the initial structure might no longer be optimal. Re-evaluate your needs and consult a tax professional to determine if a different structure offers better tax advantages or aligns better with your evolving goals.

Seeking outside investment: If you plan to raise capital through investors, an S corporation or C corporation might be more attractive to potential investors compared to an LLC. Learn about why Investors prefer C-Corps

Liability concerns: If your business operates in a high-risk industry, changing to a structure like an LLC or C corporation can offer increased personal asset protection compared to a sole proprietorship or partnership.

Disclaimer: The information provided on this website is for general informational purposes only and should not be considered legal advice. We make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, or suitability of the information. Any reliance you place on such information is strictly at your own risk. We are not liable for any loss or damage resulting from the use of this website or its content.

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