REG coverage of at-risk rules, passive-loss limits, suspended losses, hobby losses, and related disallowances.
This chapter explains why an economic loss does not always become a current tax deduction. REG expects candidates to separate the loss-limitation layers and determine whether the loss is deductible now, suspended, or permanently disallowed.
Loss limitation questions should be solved in layers. A loss can fail because the taxpayer lacks economic risk, lacks material participation, has passive activity limits, has no releasing disposition, or is not engaged in an activity with profit motive.
| Limitation area | First question | Common REG trap |
|---|---|---|
| At-risk and material participation | Does the taxpayer have enough economic exposure and activity involvement? | Deducting losses because basis exists without checking at-risk and participation. |
| Passive losses and rentals | Is the activity passive, rental, or covered by an exception? | Assuming real estate losses are automatically deductible. |
| Suspended losses | Has a qualifying disposition released the suspended amount? | Forgetting that suspended losses can carry forward rather than disappear. |
| Hobby and nondeductible losses | Does the activity have the required profit motive or deductible character? | Treating an economic loss as a tax loss without classification. |
| Step | What to do | Why it matters on REG |
|---|---|---|
| 1. Confirm tax character | Determine whether the activity is a trade or business, investment, rental, hobby, capital transaction, or nondeductible personal item. | No limitation analysis helps if the loss is not deductible in character. |
| 2. Check basis and at-risk support | Compare the loss to basis and the amount the taxpayer is economically at risk. | A taxpayer can have an economic loss that exceeds the deductible tax amount. |
| 3. Determine participation status | Evaluate material participation, rental status, real estate exceptions, and passive classification. | Passive classification can suspend a loss even when basis and at-risk support exist. |
| 4. Track suspended amounts | Identify whether losses carry forward and what event can release them. | Suspended losses are deferred, not automatically lost. |
| 5. Apply disposition rules | Decide whether a complete taxable disposition releases suspended losses or changes character. | Disposition facts often determine when previously unusable losses become deductible. |
| Checkpoint | Exam use | What to avoid |
|---|---|---|
| Loss character | Classify the activity as business, investment, rental, hobby, capital, or personal before applying limits. | Running limitation rules on a loss that is not deductible in character. |
| Basis and at-risk | Confirm tax basis and economic risk before testing passive activity treatment. | Deducting a loss because basis exists while ignoring at-risk limits. |
| Participation status | Determine material participation, rental classification, and real estate exceptions. | Assuming every rental or passive-looking loss is treated the same way. |
| Suspension tracking | Identify which losses carry forward and what income or event can absorb or release them. | Treating suspended losses as permanently lost. |
| Disposition release | Check whether a complete taxable disposition to an unrelated party releases suspended losses. | Releasing losses on partial or nonqualifying dispositions. |