The rules the exam tests
| Rule | What it says (2025) | Source |
|---|---|---|
| Control | >= 80% of total voting power and of each other class, immediately after | IRC 368(c) |
| Gain recognized | Lesser of realized gain or boot; no losses | IRC 351(b) |
| Shareholder stock basis | Property basis + gain recognized - boot received (- liabilities assumed) | IRC 358 |
| Corporation's basis | Transferor's basis + gain recognized by transferor | IRC 362 |
| Liabilities assumed | Not boot, unless tax-avoidance purpose | IRC 357(a), (b) |
| Liabilities > basis | Excess is gain | IRC 357(c) |
| Stock for services | Ordinary income; service-only transferors not counted for control | IRC 351(d) |
| Holding period | Tacks for capital and 1231 assets | IRC 1223(1) |
Facts: Joe transfers land (basis $30,000, FMV $100,000) to a new corporation for 100% of the stock (worth $90,000) plus $10,000 cash.
Result: realized gain $70,000; recognized = boot $10,000. Joe’s stock basis = $30,000 + $10,000 - $10,000 = $30,000. Corporation’s land basis = $30,000 + $10,000 = $40,000.
Exam traps
- The 80% test applies to all transferors as a group.
- Losses are never recognized, even with boot.
- Service providers are not “transferors” unless they also transfer property.
- Liabilities over basis (357(c)) is gain even with no cash boot.
Forming a corporation: Section 351: 10 free practice questions
Forming a corporation: Section 351 practice questions
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Frequently asked questions
What is a section 351 exchange?
A transfer of property to a corporation for its stock by transferors who control it (80%) immediately after; generally no gain or loss is recognized.
Is boot taxable in a section 351 exchange?
Yes, up to the realized gain.
Sources
- 26 U.S.C. 351 - Transfer to corporation controlled by transferor (accessed 2026-09-23)
- IRS Publication 542 - Corporations (accessed 2026-09-23)
- IRS - SEE Part 2 content specifications (Businesses) (accessed 2026-09-23)
- IRS - Enrolled agents: Frequently asked questions (accessed 2026-09-23)