This is a quick way to make a comparison between the different options you have to form your business.  (Partnerships are not included in this comparison matrix).

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Elements

Sole
Proprietorship

C Corp

S Corp

Limited Liability Company (LLC)

Formation
Requirements,
Costs

No filing required

Must file with state,
and pay a filing
fee.

Must file with state,
and pay a filing
fee.

Must file with state,
and pay a filing
fee.

Personal
Liability

Unlimited liability

Shareholders and owners are protected from personal liability.

Shareholders and owners are protected from personal liability.

Have limited personal liability.

Administrative
Requirements

No election of Board of Directors/officers, annual meetings.

Election of board of
directors/officers,
annual meetings, and
annual report filing
requirements.

Election of board of
directors/officers,
annual meetings, and
annual report filing
requirements.

No election of Board of Directors/officers, annual meetings.

Management

Owner has full control.

Shareholders elect
directors who
manage business
activities.

Shareholders elect
directors who
manage business
activities.

Members can set up structure as they
choose.

Term

Terminated when
proprietor ceases
doing business or
upon death.

Perpetual: can
extend past death or
withdrawal of
shareholders.

Perpetual: can
extend past death or
withdrawal of
shareholders.

Perpetual, unless state requires fixed
amount of time.

Taxation

No corporate tax.
Pay tax as an individual.

Must pay corporate tax.

No corporate tax.
Pay tax as an individual.

No corporate tax.
Pay tax as an individual. Income passed
through to members.

Double Taxation

No

Yes, taxed at
corporate level and
then again if
distributed to
shareholders in the
form of dividends.

No

No

Self Employment
Tax

(SSN/Medicaid)

(if individual earn $400 or more)

Yes

Yes

Yes

Yes

Pass Through
Tax Treatment

Yes

No

Yes

Yes

Tax Forms

1040

IRS Form 1120

IRS Form 1120S
Shareholders get K-1 for personal tax
returns.

(1 member) Sole Proprietor: IRS Form 1040 - Schedule C


Partnership: IRS Form 1065, Members
get K-1

Transferability of
Interest

No

Shares of stock are
easily transferred.

Yes, but must
observe IRS regulations on who
can own stock.

Possibly, depending on restrictions
outlined in the operating agreement.

Raising Capital

Individual provides
capital.

Shares of stock are
sold to raise capital
(Securities laws
apply).

Shares of stock are
sold to raise capital.
Limitations prevent S corp. stock ownership
by corporations.

May sell interests, but subject to
operating agreement
(Securities laws may also apply).

Ease of
Operation

Easiest

Difficult

Moderate

Difficult