Key Takeaways

  • Section 721 provides nonrecognition when property is contributed for a partnership interest.
  • Contributing services triggers immediate ordinary income recognition.
  • Outside basis = partner basis in partnership interest; Inside basis = partnership basis in property.
  • Boot (cash/liabilities) may trigger gain recognition.
  • Partnership tacks the contributing partner holding period.
  • Investment company exception can trigger gain on diversification.
Last updated: January 2026

Partnership Formation

Why This Matters for the Exam

Partnership formation is fundamental to Part 2. The exam tests the tax-free nature of property contributions, the taxable treatment of service contributions, and the critical inside/outside basis concepts.

Exam Note: For the May 2025 - February 2026 testing window, you are tested on partnership rules as of December 31, 2024 (Tax Year 2024).

Expect at least 4-5 questions on partnership formation.

Section 721: Nonrecognition on Formation

The general rule is that no gain or loss is recognized when property is contributed to a partnership in exchange for a partnership interest.

Contribution TypeTax Treatment
PropertyNo gain/loss (§721)
ServicesOrdinary income recognized
Property + BootGain to extent of boot

Property vs. Services

ContributesResult
Property (real estate, equipment, inventory, IP)Tax-free under §721
Services (legal work, consulting, labor)Taxable—FMV of interest received = ordinary income

Key Point: If you contribute services for a partnership interest, you recognize ordinary income equal to the FMV of the interest received. This is immediate taxation.

Inside Basis vs. Outside Basis

These are the two most fundamental concepts in partnership taxation:

ConceptWhat It IsWhat It Determines
Outside BasisPartner's basis in partnership interestLoss limits, distribution taxation, sale gain
Inside BasisPartnership's basis in contributed propertyDepreciation, sale gain by partnership

Outside Basis Calculation (Formation)

ComponentEffect
Basis of property contributedStart
+ Cash contributedAdd
- Liabilities assumed by partnershipSubtract
+ Share of partnership liabilitiesAdd
= Outside Basis

Inside Basis Rule

RuleDescription
Carryover basisPartnership takes partner's adjusted basis
No step-upFMV is irrelevant
Built-in gain/lossPreserved for later recognition

Boot and Gain Recognition

"Boot" can trigger gain:

Type of BootEffect
Cash receivedGain recognized
Liabilities assumed > share allocatedGain recognized
Marketable securitiesMay be treated as cash

Gain Formula:

  • Gain recognized = Lesser of realized gain OR boot received

Holding Period Tacking

RuleDescription
Partnership tacksPartner's holding period carries over
Capital/§1231 assetsFull tacking
Ordinary income assetsHolding period starts fresh

Formation Example

Partner A ContributionAmount
Land basis$40,000
Land FMV$100,000
Liability on land$20,000
Partnership interest received25%
CalculationAmount
Outside basis start$40,000
Less: Liability assumed($20,000)
Plus: Share of liability (25%)$5,000
Outside Basis$25,000
Inside Basis (to partnership)$40,000

Real-World Scenario

Scenario: Partner A contributes land (basis $40k, FMV $100k) for a 25% interest. Partner B contributes services worth $100k for a 25% interest.

  • Partner A: No gain recognized (§721). Outside basis = $40k.
  • Partner B: $100k ordinary income recognized. Outside basis = $100k (FMV of interest).

On the Exam

Expect 4-5 questions on formation, typically:

  1. Gain Recognition Questions: "How much gain does the contributing partner recognize?"
  2. Service Questions: "What is the tax consequence of contributing services?"
  3. Basis Questions: "What is the partner's outside basis?"
  4. Inside/Outside Questions: "What is the partnership's basis in the property?"

The key is to remember: Property = no gain (§721). Services = ordinary income. Outside = partner's basis in interest. Inside = partnership's basis in property (carryover).

Test Your Knowledge

Partner A contributes land with FMV $100,000 and basis $40,000 for a 25% interest. How much gain does Partner A recognize?

A
B
C
D
Test Your Knowledge

Partner B contributes services valued at $50,000 for a 10% partnership interest. What is the tax consequence?

A
B
C
D
Test Your Knowledge

Partner contributes property (basis $30,000, FMV $80,000). Partnership assumes $20,000 liability. What is outside basis?

A
B
C
D