REG related-party coverage for attribution, loss disallowance, deferred gain, imputed interest, and family structures.
This chapter covers the special rules that prevent taxpayers from creating favorable tax results through dealings with related parties. REG questions in this area often test whether ownership attribution applies and whether a transaction’s apparent result is limited or deferred.
Related-party questions should begin with relationship classification. If the parties are related under attribution or control rules, the tax law may defer gain, disallow loss, impute interest, or recharacterize a structure that would otherwise appear valid.
| Related-party issue | First question | Common REG trap |
|---|---|---|
| Attribution and related parties | Are ownership, family, entity, or control rules creating related-party status? | Looking only at direct ownership. |
| Loss disallowance and deferred gain | Does the relationship limit current recognition or deduction? | Applying ordinary sale rules after related-party status is established. |
| Imputed interest | Is a below-market loan being recharacterized for tax purposes? | Treating missing interest as a nontax event. |
| Family partnerships and complex structures | Does substance or attribution override the formal structure? | Assuming layered ownership avoids related-party limits. |
| Step | REG question to ask | Tax effect |
|---|---|---|
| 1. Identify direct and indirect relationships | Do family, ownership, entity, or control rules connect the parties? | Related-party status often arises through attribution, not direct ownership alone. |
| 2. Classify the transaction | Is the fact pattern a sale, exchange, loan, lease, partnership arrangement, or layered structure? | Different related-party rules apply to different transaction types. |
| 3. Apply loss or gain limits | Is loss disallowed, gain deferred, basis affected, or character changed? | Ordinary disposition rules may be overridden once related status exists. |
| 4. Test interest and pricing terms | Do below-market loans, imputed interest, or non-arm’s-length terms require adjustment? | Missing or understated consideration can create taxable consequences. |
| 5. Evaluate substance and documentation | Does the structure have economic substance and support for the reported treatment? | Complex family or controlled structures need more than formal labels. |
| Checkpoint | Ask before applying ordinary sale rules | Tax effect |
|---|---|---|
| Relationship source | Is related status created by family, ownership, entity control, attribution, or constructive ownership? | Related-party status often exists without direct ownership. |
| Transaction type | Is the transaction a sale, exchange, loan, lease, partnership arrangement, or layered structure? | Different anti-abuse rules apply to different transaction forms. |
| Loss or gain treatment | Is loss disallowed, gain deferred, basis affected, or character changed? | Ordinary disposition results can be overridden by relationship rules. |
| Pricing and interest | Are below-market loans, imputed interest, bargain pricing, or non-arm’s-length terms present? | Missing market terms can create taxable income or deduction limits. |
| Substance support | Does the structure have economic substance, documentation, and a non-tax explanation? | Formal labels are weak when controlled parties can shape the result. |