Key Takeaways

  • Section 351 allows tax-free incorporation if 80% control obtained.
  • Transferors must control the corporation "immediately after" the exchange.
  • Boot (cash or other property) triggers gain recognition.
  • Gain recognized = lesser of realized gain or boot received.
  • Corporation takes carryover basis (increased by any gain recognized).
  • Services do not count as "property" for 80% control test.
Last updated: January 2026

Section 351 Transfers

Why This Matters for the Exam

Section 351 is the gateway to tax-free incorporation. The exam tests the 80% control requirement, boot treatment, and basis calculations.

Expect at least 3-4 questions on §351.

The Basic Rule

Section 351: No gain or loss is recognized when:

RequirementDetail
Property transferredTo a corporation
In exchange forStock of the corporation
ControlTransferors have 80%+ control "immediately after"

80% Control Defined

Control RequirementThreshold
Voting stock80% or more
Each class of nonvoting80% or more
Immediately afterRight after the exchange

"Property" Definition

Qualifies as PropertyDoes NOT Qualify
CashServices
Tangible propertyFuture services
Intangible propertyPromissory notes by transferor
Accounts receivable
Installment obligations

Key Point: Services do not count for the 80% control test. If someone contributes only services, their stock is ignored when calculating if property transferors have 80% control.

Boot: Triggering Gain

Boot = Non-stock consideration received (cash or other property).

Boot ReceivedEffect
CashGain recognized
Other propertyGain recognized
Assumption of liabilityUsually not boot (see exceptions)

Gain Recognition with Boot

FormulaCalculation
Realized gainFMV received - Adjusted basis given
Recognized gainLesser of realized gain OR boot received
LossNot recognized even with boot

Boot Example

ItemAmount
Property basis$20,000
Property FMV$100,000
Stock received (FMV)$90,000
Cash received (boot)$10,000
Realized gain$100,000 - $20,000 = $80,000
Recognized gainLesser of $80,000 or $10,000 = $10,000

Liability Assumption

RuleTreatment
General ruleLiability assumed is NOT boot
ExceptionIf liabilities exceed basis = gain
Tax avoidanceIf principal purpose is tax avoidance = boot

Shareholder's Basis in Stock

FormulaCalculation
Basis of property transferred$X
+ Gain recognized+$Y
- Boot received-$Z
- Liabilities assumed-$L
= Stock basis

Corporation's Basis in Property

RuleCalculation
Carryover basisSame as transferor's basis
+ Gain recognized by transferorIncrease basis
= Corporation's basis

Real-World Scenario

Scenario: Two individuals form a corporation. A contributes property (basis $50,000, FMV $80,000) for 70% of the stock and $5,000 cash. B contributes cash of $30,000 for 30% of the stock.

  • Control test: A and B together own 100% → control requirement met.
  • A's realized gain: $85,000 received - $50,000 basis = $35,000.
  • A's recognized gain: Lesser of $35,000 or $5,000 = $5,000.
  • A's stock basis: $50,000 - $5,000 (boot) + $5,000 (gain) = $50,000.

On the Exam

Expect 3-4 questions on §351, typically:

  1. Control Questions: "What percentage ownership is required?"
  2. Boot Questions: "How much gain is recognized?"
  3. Basis Questions: "What is the shareholder's basis in stock?"
  4. Property Questions: "Do services count as property?"

The key is to remember: 80% control. Boot triggers gain = lesser of realized gain or boot. Services ≠ property. Carryover basis to corporation.

Test Your Knowledge

What ownership percentage is required for §351 tax-free treatment?

A
B
C
D
Test Your Knowledge

Taxpayer transfers property (basis $30k, FMV $50k) for stock worth $45k and $5k cash. Recognized gain?

A
B
C
D
Test Your Knowledge

Do services count as "property" for the §351 control test?

A
B
C
D