Passive vs Active Income: How Mobile Home Park Ownership Is Classified by the IRS

One of the most significant tax planning questions for any MHP owner — particularly one who has just commissioned a cost segregation study and is staring at a large depreciation deduction — is this: can I actually use this loss?

The answer depends entirely on how your mobile home park ownership is classified by the IRS under the passive activity loss rules of IRC §469. If the park is a passive activity, your depreciation losses can only offset passive income — not your W-2 wages or business income. If you qualify as a material participant or a real estate professional, the rules change significantly.

This is one of the most misunderstood areas of MHP tax planning, and getting it wrong — in either direction — creates real problems. Understanding the classification framework before you acquire your first park is essential.

The Default Rule: MHP Rental = Passive Activity

Under IRC §469, rental activities are presumptively passive. A “rental activity” is one where payments are principally for the use of tangible property (like land and homes). Mobile home park ownership — receiving lot rent in exchange for use of a lot, receiving POH rent in exchange for use of a home — fits squarely within the rental activity definition.

The practical consequence: losses generated by your MHP (primarily from depreciation exceeding income) are classified as passive activity losses. Passive activity losses can only offset passive activity income. They cannot offset your W-2 wages, business income, interest, dividends, or any other non-passive income category.

If you have no other passive income, your MHP’s depreciation losses go into a suspended passive loss account — they accumulate and carry forward year after year, unusable, until one of two events happens: you generate passive income to offset them, or you dispose of the passive activity in a fully taxable transaction (at which point all suspended losses are released).

The Material Participation Tests: Seven Ways to Qualify

If you materially participate in the mobile home park activity, it is classified as active (not passive), and losses can offset non-passive income. IRC §469 and Treasury Regulation §1.469-5T provide seven tests for material participation. Meeting any one of the seven tests qualifies the activity as non-passive for that year.

The seven tests are:

1. 500-hour test: You participated in the activity for more than 500 hours during the year. This is the most commonly applicable test for active MHP operators who are hands-on in managing their parks.
2. Substantially all test: Your participation constitutes substantially all participation in the activity — meaning no one else put in significant time (other than spouses).
3. 100-hour / not less than others test: You participated more than 100 hours, and not less than any other individual (including non-owners).
4. Significant participation activity aggregation: You participate more than 100 hours in several “significant participation activities,” and the aggregate participation in all such activities exceeds 500 hours.
5. Material participation in 5 of prior 10 years: You have materially participated in the activity for any 5 of the 10 immediately preceding taxable years.
6. Material participation in any 3 prior years (personal service activity only): Applies to personal service activities, not typically applicable to rental activities.
7. Facts and circumstances test: Based on all facts and circumstances, you participated on a regular, continuous, and substantial basis. This test requires more than 100 hours and that no one else participated more than you. It cannot be met solely through management participation if the taxpayer participates less than any other individual.

For most MHP operators who are actively managing their parks — responding to maintenance, handling tenant relations, managing vendors, overseeing capital improvements — the 500-hour test (Test 1) is the most relevant. If you spend more than 500 hours annually on your MHP, you materially participate, and the activity is non-passive.

However, there’s a critical exception: even if you materially participate in a rental activity and it becomes non-passive, the passive activity rules still classify rental activities as passive unless the real estate professional exception applies. Material participation alone does not recharacterize rental income as active income — you need the real estate professional exception to fully escape passive classification for rental activities.

The Rental Activity Exception to Material Participation

This is where many MHP owners get confused. The material participation tests described above determine whether an activity is passive or active. For most activities, material participation = non-passive. But rental activities have a special rule: they remain passive even with material participation unless you qualify as a real estate professional under IRC §469(c)(7).

This means an MHP owner who passes the 500-hour test still has passive rental income and losses — unless they also meet the real estate professional exception. The two rules work together: you need material participation AND real estate professional status to fully treat MHP losses as non-passive.

The Real Estate Professional Exception: The 750-Hour Test

IRC §469(c)(7) provides that a taxpayer who qualifies as a real estate professional is not subject to the passive loss limitation for rental real estate activities in which they materially participate. To qualify as a real estate professional, a taxpayer must:

1. Perform more than 750 hours of services during the tax year in real property trades or businesses in which the taxpayer materially participates
2. More than 50% of the taxpayer’s total personal service hours during the tax year must be performed in real property trades or businesses

The 50% test is the significant hurdle. If you have a full-time W-2 job (2,000+ hours per year), meeting the 50% test requires more than 2,000 hours in real property activities — which almost no one can sustain alongside full-time employment. The real estate professional exception is most accessible to taxpayers whose primary occupation is real estate: full-time investors, developers, brokers, or MHP owners who have left other employment.

For married couples filing jointly, only one spouse needs to qualify — but the qualifying spouse’s hours cannot be combined with the other spouse’s to meet either the 750-hour or 50% threshold (each test must be met individually by one person).

If you do qualify as a real estate professional and materially participate in your MHP, all losses from the park (including depreciation) can offset your ordinary income without limitation.

Most MHP Investors Should Plan Assuming Passive Classification

For MHP investors who are not full-time real estate professionals — those who have other jobs, other businesses, or multiple investment activities that don’t add up to 750+ hours of real estate work — the realistic planning posture is: your MHP losses are passive.

This doesn’t mean the depreciation benefit is worthless. It means:

• Your depreciation losses will suspend until you have passive income to offset them
• If you acquire additional passive income investments (other MHPs, syndication interests, other rental properties), the suspended losses become usable
• All suspended losses are released in the year you sell the MHP in a fully taxable transaction — they offset the gain at disposition
• Holding multiple passive properties in the same activity grouping can allow you to apply losses from one against income from another

The suspended loss release at complete disposition is a meaningful planning tool. An investor with $500,000 in suspended passive losses sells their MHP and recognizes $800,000 of gain — the $500,000 of released losses reduces the net taxable gain to $300,000. The losses weren’t wasted; they were preserved until they could be used most efficiently.

The $25,000 Rental Loss Allowance

IRC §469(i) provides a special exception for individual taxpayers who “actively participate” (a lower standard than material participation) in rental real estate activities: up to $25,000 of rental losses can be deducted against non-passive income if the taxpayer’s modified Adjusted Gross Income (MAGI) is below $100,000.

This allowance phases out ratably between $100,000 and $150,000 of MAGI — at $150,000 and above, the allowance is completely phased out. For most MHP investors with meaningful income from other sources, this exception is either fully or partially phased out and provides little practical benefit.

Active participation — the standard for this exception — is lower than material participation. It requires making management decisions in a bona fide sense (approving tenants, repairs, lease terms), even if through a property manager. But the income phase-out makes this exception relevant primarily for lower-income investors, not the typical MHP buyer.

How Passive Losses Are Released at Disposition

When you sell your mobile home park in a fully taxable transaction — not a 1031 exchange, which defers everything — all suspended passive activity losses from that activity are released. They offset your gain in the following order:

1. The released passive losses first offset any current-year passive income
2. Then they offset the gain from the sale (capital or ordinary recapture income)
3. Any excess released losses are then deductible against non-passive income

This release mechanism means that suspended losses are never permanently lost — they’re preserved and released at the most tax-efficient moment: when you have gain to offset. For long-term MHP holders with significant accumulated suspended losses, this can meaningfully reduce the net tax on sale.

Understanding how passive loss release interacts with your overall exit tax picture — including depreciation recapture and capital gain — is part of comprehensive exit planning. See our posts on depreciation recapture at MHP sale and installment sale vs lump sum exit structures for the full exit tax framework.

Activity Grouping: A Planning Tool

Treasury Regulation §1.469-4 allows taxpayers to group activities together as a single activity for passive loss purposes. If you own multiple MHPs, grouping them as a single rental activity means income from one park can offset losses from another within the group — rather than having each park’s passive loss and income calculated separately.

Grouping decisions made early in your MHP investing career can significantly affect how passive losses flow across your portfolio. Once made, grouping elections are generally locked in — changing them requires IRS approval. Work with your CPA before acquiring your second or third park to ensure your grouping elections align with your investment strategy.

FAQ

For the IRS statutory guidance on passive activity loss rules, see IRS Publication 925: Passive Activity and At-Risk Rules.

Internal links: Depreciation Recapture at MHP Sale | MHP Returns vs Other Real Estate: A Tax Perspective | Installment Sale vs Lump Sum for MHP Sellers

Disclaimer: This post is for educational and informational purposes only and does not constitute tax, legal, or financial advice. The passive activity rules are complex, and individual facts and circumstances significantly affect their application. Tax laws change. Consult a qualified tax professional before making any investment, entity structure, or income classification decisions related to mobile home park ownership. The MHP Accountant® is an enrolled agent firm; engagement of professional services is required for personalized advice.