How to Choose a Business Structure like a Pro

Choosing a business structure is one of the first real decisions you’ll make as a business owner. It affects how you’re taxed, how exposed you are legally, how much admin you’ll deal with, and how easily the business can evolve as it grows.

Below is a practical overview of the most common U.S. business structures, including how to set each one up, how it’s taxed, and the key trade-offs.

1. Sole Proprietorship

A sole proprietorship is the default structure when one person runs a business without forming a separate legal entity.

How to set up

1. Begin operating the business (no formal setup required)

2. Register a DBA (Doing Business As) if operating under a business name

3. Apply for an EIN if hiring employees or opening a business bank account

4. Obtain required licenses or permits

   
   

Tax filing

• Schedule C with Form 1040 (Business income and expenses are reported on your individual tax return)

  
  

How taxes work

• Net profit is subject to:

  • Federal income tax

  • Self-employment tax (Social Security and Medicare)
    

Pros

• Very easy and inexpensive to start

• Minimal administrative work

• Full control over the business

Cons

• No liability protection

• Personal assets are fully exposed

• Limited credibility with lenders and investors

• Can become tax-inefficient as income increases

Best for

• Freelancers and contractors

• Side hustles and early-stage businesses

• Low-risk service-based work

2. Partnership

A partnership exists when two or more people own and operate a business together without forming a corporation.

How to set up

1. Choose the partnership type (general partnership, LP, or LLP)

2. Draft and sign a partnership agreement

3. Register with the state if required

4. Apply for an EIN

5. Open a business bank account

6. Obtain required licenses or permits

Tax filing

• Form 1065(Informational return for the partnership)

• Schedule K-1(Each partner reports their share on their personal return)

How taxes work

• The partnership does not pay income tax

• Partners are taxed on their share of profits, even if profits aren’t distributed

• General partners typically owe self-employment tax

Pros

• Straightforward structure for multiple owners

• Pass-through taxation

• Flexible ownership arrangements

Cons

• Potential personal liability depending on structure

• Requires strong agreements to avoid disputes

• Taxed on income even if cash stays in the business

• More compliance than a sole proprietorship

Best for

• Businesses with two or more active owners

• Professional services firms

• Co-founder arrangements with clear roles

3. Limited Liability Company (LLC)

An LLC is a legal structure only, created under state law.It provides liability protection, but it does not determine how the business is taxed on its own.

For tax purposes, the IRS looks at how many owners the LLC has and whether any elections are made.

How to set up

1. Choose the state of formation

2. File Articles of Organization

3. Draft an Operating Agreement (important even for one owner)

4. Apply for an EIN

5. Open a business bank account

6. Register for state and local taxes

7. Obtain required licenses and permits

How an LLC is taxed by default

Single-member LLC

• Treated as a sole proprietorship

• Files Schedule C with Form 1040

Multi-member LLC

• Treated as a partnership

• Files Form 1065

• Issues Schedule K-1s to owners

In simple terms:

• One owner → taxed like a sole proprietorship

• Two or more owners → taxed like a partnership

Optional tax elections

• Form 2553 (Elects S corporation taxation if appropriate)

How taxes work

• Owners are generally treated as self-employed

• Net income is subject to income tax and self-employment tax

• An S corporation election may reduce self-employment tax at higher profit levels if payroll is handled correctly

Pros

• Liability protection for personal assets

• Flexible tax treatment

• Widely accepted by banks, clients, and platforms

• Allows future tax planning without forming a new entity

Cons

• Not a tax strategy by itself

• Self-employment tax still applies by default

• State fees and annual filings may apply

• More complexity with multiple owners

Best for

• Most small and mid-sized businesses

• Owners who want liability protection

• Businesses planning to grow or optimize taxes later

4. S Corporation

An S corporation is not a legal entity.It is a tax election available to eligible LLCs and corporations.

How to set up

1. Form an LLC or corporation at the state level

2. Apply for an EIN

3. File Form 2553 to elect S corporation status

4. Set up payroll for owner wages

5. Maintain ongoing compliance

Tax filing

• Form 1120-S

• Schedule K-1 for each owner

How taxes work

• Income passes through to owners’ personal returns

• Owners who work in the business must take reasonable salaries (subject to payroll tax)

• Remaining profit may avoid self-employment tax

Pros

• Potential reduction in self-employment taxes

• Pass-through taxation

• Effective for consistently profitable owner-led businesses

Cons

• Payroll and added compliance required

• Ownership and eligibility restrictions apply

• Increased IRS scrutiny

• Not cost-effective at lower income levels

Best for

• Owner-operated businesses with steady profits

• Service businesses earning above entry-level thresholds

• Founders ready to handle payroll and compliance

5. C Corporation

A C corporation is a separate legal and tax entity, typically used for businesses planning to scale or raise outside capital.

How to set up

1. Choose the state of incorporation

2. File Articles of Incorporation

3. Create corporate bylaws

4. Appoint directors and officers

5. Issue stock

6. Apply for an EIN

7. Open a corporate bank account

8. Register for payroll and applicable taxes

Tax filing

• Form 1120 (Corporate income tax return)

How taxes work

• The corporation pays corporate income tax (currently 21% in the US)

• Shareholders pay tax again on dividends (double taxation)

Pros

• Strong liability protection

• Preferred structure for investors

• Easier access to capital

• Clear separation between owners and business

Cons

• Double taxation

• Higher compliance and administrative burden

• More expensive to maintain

• Often unnecessary for owner-operated businesses

Best for

• Venture-backed startups

• High-growth companies

• Businesses planning an acquisition or IPO

Final Takeaway

Legal structure and tax treatment are not the same thing. An LLC provides legal protection, while taxes depend on ownership, elections, and income level.

A common path for many businesses is: Sole Proprietorship → LLC → LLC taxed as an S Corporation

Choosing the right structure - and adjusting it at the right stage - can reduce risk, improve tax efficiency, and prevent costly restructuring later.

Ready to set up your business with confidence?

Our experts are here to support you every step of the way.

📞 Schedule a consultation to choose the right structure, understand the tax impact, and start on solid ground from day one.

📥 Prefer to leave us a message? You can drop it here, and one of our experts will contact you promptly.