Part of our pillar guide: Passive Activity Loss Rules: The Complete Guide →
Before You Read This
This guide explains the framework. It cannot give you your answer — and neither can we.
Whether real estate losses can offset your surgery center income depends on facts we have no visibility into: how your entities are structured and layered, whether the facility and the operating center sit in the same entity or separate ones, your ownership percentages, the size of the center and how many others participate in it, your actual documented hours, your participation history across prior years, how your K-1s are prepared and characterized, and elections made on returns you may have filed years ago. Two physicians who describe their situations identically in conversation — including two who both operate at centers they own — can have opposite answers once their returns and operating agreements are actually reviewed.
Dayan Capital does not provide tax, legal, or accounting advice, and we do not evaluate individual tax positions. Read this to understand what questions to ask, then take those questions to your own CPA or tax attorney, who can review your specific structure and returns. Nothing on this page is advice, an opinion on your circumstances, or a representation about the tax result of any investment.
At a Glance
| The governing rule | IRC §469 — passive losses offset passive income only |
| The deciding test | Material participation in the ASC (7 regulatory tests) |
| Large multi-specialty center, minority owner | Often passive even if you operate there — hours rarely reach 500 |
| Small center you effectively run | Often non-passive → passive losses generally cannot offset |
| Hours that count | Clinical work in the activity, not just management time |
| The 500-hour test | Absolute, not proportional — a small share of a large center still counts |
| Self-rental to your practice | Net income recharacterized non-passive (§1.469-2(f)(6)) |
| NIIT interaction | Offsetting passive income generally reduces the 3.8% base too |
| Unused losses | Suspended and carried forward; freed on full disposition |
| Reported on | IRS Form 8582 (and Form 8960 for NIIT) |
A physician with an ownership stake in an ambulatory surgery center has something most high earners do not: a large stream of income that may not be wages. That distinction matters enormously for tax planning, because the single biggest obstacle to using real estate deductions is not finding deductions — it is having income the deductions are allowed to touch.
This is where a lot of well-intentioned advice goes wrong. A physician hears that a cost segregation study on a real estate investment can generate a substantial first-year paper loss. That much is true. The leap — that the loss will therefore shelter their surgery center K-1 — is not automatically true, and whether it holds depends on facts specific to that physician.
This guide walks through how the passive activity loss rules apply to ASC ownership in general terms: how income gets sorted, what material participation means when your “participation” is performing surgery, the self-rental rule that catches physicians who own their facility, and what the planning looks like in each case. It ends with the questions to take to your own advisor, which is where any actual determination has to be made.
Chapter 1
The Real Question Isn't About Real Estate
Investors tend to frame this as a question about the real estate: is the deal structured well, is the depreciation big enough, was the study done properly. Those matter, but they are downstream. The gating question is about the other side of the ledger.
Under IRC §469, losses from a passive activity can only be deducted against income from passive activities. A syndicated real estate investment where you are a limited partner is almost always passive to you. So the deduction exists and is characterized as passive. The question is whether you have passive income for it to land on.
The Core Idea
“Is my surgery center income passive?” is not really a question about the surgery center. It is a question about you — and about how your interest is held and reported. Two physicians with identical 10% stakes in the same ASC can reach opposite answers, because the test is applied per taxpayer, per activity, per year, and their structures may differ in ways neither one can see from a distribution statement.
Chapter 2
How §469 Sorts Your Income
The code effectively puts income into three buckets, and passive losses can only reach one of them. This is the entire reason a physician's W-2 is so hard to shelter — and the reason ASC ownership is interesting.
Active / Earned
W-2 wages, practice income
Your clinical salary and self-employment income from practicing. Passive losses cannot offset this bucket, which is why high-W-2 physicians so often find their real estate deductions stranded.
Portfolio
Interest, dividends, most cap gains
Investment income that §469 treats as its own category. Passive losses generally cannot offset portfolio income either — a common misconception among investors with large brokerage accounts.
Passive
Rentals, non-participating K-1s
Trade or business activities in which you do not materially participate, plus most rental activity. This is the only bucket passive losses can reach — and where genuinely passive ASC income would sit.
So the planning opportunity is real, but narrow: it exists precisely when a physician's ASC interest falls into that third bucket. Which bucket yours lands in is the determination your CPA has to make. See the passive loss rules guide for how the buckets interact more generally.
Chapter 3
The Seven Material Participation Tests
An activity is non-passive to you if you materially participate in it. The regulations under Treas. Reg. §1.469-5T provide seven tests, and meeting any one is enough. Read these with your actual ASC schedule in mind — most physician-owners meet at least one without realizing it.
The 500-hour test
You participate in the activity for more than 500 hours during the year. This is the test most operating surgeons meet, and it is usually met on clinical hours alone.
Substantially all participation
Your participation constitutes substantially all of the participation of all individuals in the activity. Uncommon for an ASC with staff, but relevant for small single-physician ventures.
100 hours and no one more
You participate more than 100 hours and no other individual participates more than you do. Relevant where a small ASC is administered by a part-time manager.
Significant participation activities
The activity is a significant participation activity (more than 100 hours, without material participation under another test) and your aggregate hours across all such activities exceed 500. This test catches physicians with several 100-plus-hour ventures.
Five of the last ten years
You materially participated in the activity for any five of the prior ten taxable years. A physician who has since cut back cannot immediately convert the income to passive — this test keeps it non-passive for years.
Personal service activity, any three prior years
For a personal service activity — which includes the field of health — you materially participated for any three prior taxable years. Note that there is no lookback limit here, and medicine falls squarely within it.
Facts and circumstances
You participate on a regular, continuous, and substantial basis based on all facts and circumstances. Narrower than it sounds, with a 100-hour floor and significant limitations, but available.
Note Tests 5 and 6
These are lookback tests, and they are the ones physicians overlook when planning a wind-down. Reducing your case volume at the center this year does not make this year's income passive if you materially participated in prior years. Test 6 is especially sticky, because medicine is a personal service field and three prior years of participation is a low bar for anyone who has owned the center for a while.
Chapter 4
The Operating Surgeon Problem
Here is the assumption that gets physicians into trouble in one direction: the belief that because they do not manage the surgery center, their income from it is automatically passive. They do not sit on the board, they do not negotiate vendor contracts, they do not review the staffing schedule. Surely that is passive.
Not necessarily. Material participation counts work performed in the activity, not merely oversight of it. Where a physician's cases are performed in the conduct of the entity's business, those hours are ordinarily treated as participation in that activity — so a surgeon who owns a large share of a small center where they are a primary operator may well exceed 500 hours and meet test 1 with no management involvement at all.
But the opposite assumption is just as common and just as wrong: that operating at a center you own necessarily makes the income non-passive. It does not. The tests are quantitative, and at a large center the numbers frequently do not get there. That case is common enough — and consequential enough — that it gets its own treatment below.
The two columns below are general patterns to orient you, not conclusions about your situation. Which side you fall on is a determination for your CPA, based on your hours and your structure.
Often non-passive
Passive real estate losses generally cannot offset
- · Your documented hours in the activity exceed 500 for the year
- · You own a large share of a small center you effectively run
- · You are on the governing board or medical executive committee
- · You handle scheduling, quality review, credentialing, or vendor decisions
- · Test 4 aggregation pushes you past 500 hours across ventures
- · You materially participated in 5 of the last 10 years
- · You materially participated in any 3 prior years (personal service field)
More often passive
Passive real estate losses may be able to offset
- · Minority interest in a large multi-specialty center with many owners
- · Your in-facility hours fall short of 500 for the year
- · Full-time administrators and staff out-participate every owner
- · You hold equity in a center where you have never operated
- · You invested in a center in another specialty or market
- · You retired long enough ago to clear the lookback tests
- · Your involvement is limited to receiving distributions
The pattern worth noticing: the physician-investors who can most cleanly use passive real estate losses against ASC income are usually the ones whose stake is closer to an investment than to a workplace. But that line is not the same as “do you ever operate there” — and the next section explains why, because it is the case we see most often.
The Large Multi-Specialty Center: A Common and Different Case
Everything above describes the physician who owns a meaningful share of a small center where they are one of the primary operators. That is not the only structure, and in our experience it is not the most common one among the physician-investors we meet. Orthopedic surgeons and ophthalmologists in particular frequently hold minority interests in large multi-specialty surgery centers — often alongside dozens of other physician-owners, sometimes with a hospital system or management company as a partner — and receive substantial distributions from them.
In that setting, an owner who does perform cases at the facility can still end up with passive income, for reasons that have nothing to do with intent and everything to do with how the tests are written.
The 500-hour test is absolute, not proportional
It asks for more than 500 hours in the activity — not for a large share of the activity. Actual in-facility case time for a surgeon operating one day a week is often in the range of 300 to 400 hours a year, which is under the threshold. A physician can be a regular presence at a center and still not meet test 1 on hours alone.
Scale defeats tests 2 and 3
Test 2 requires that your participation be substantially all of everyone's, and test 3 requires that no other individual participate more than you. In a large center with full-time administrators, nursing staff, and many operating physicians, neither is realistically met. The very size that makes these centers profitable is what keeps those two tests out of reach.
Whose business are your clinical hours in?
In many large-center structures the surgeon's professional fee is billed through their own practice entity while the center earns the facility fee. Whether particular clinical hours count as participation in the center's activity or in the practice's is a genuinely structure-dependent question, and it is frequently the crux of the analysis. It is also precisely the kind of question that cannot be answered without reading the actual agreements.
Test 4 is the one to watch
The significant participation test aggregates. More than 100 hours at the center, combined with other activities in which you also exceed 100 hours without materially participating, can total more than 500 across the group and convert the income to non-passive. A physician with several such ventures should have this run explicitly rather than assumed.
The lookbacks still apply
Tests 5 and 6 do not care about your current year. Prior-year participation — five of the last ten, or any three prior years in a personal service field like medicine — can control the characterization regardless of how you practice today.
Why This Case Matters
It is the combination that produces the opportunity: substantial distributionsfrom a center large enough that no single owner dominates its participation, held by a physician whose own hours there fall short of the thresholds. That is a materially different position from the surgeon who owns a large share of a small center they effectively run — and it is why “do you operate there?” is a starting question rather than a conclusion. As with everything on this page, the determination belongs to your CPA, who can measure your hours against the specific tests and read the structure you are actually in.
Chapter 5
The Self-Rental Trap
Many physicians own the real estate their practice or surgery center occupies, often through a separate LLC. It is good business — you capture the rent instead of paying a landlord, and you build equity in an appreciating asset. It also creates a specific tax problem that surprises people.
Under Treas. Reg. §1.469-2(f)(6), the self-rental rule recharacterizes net rental income from property you lease to a business in which you materially participate. That income becomes non-passive. The intuitive planning move — use the medical office building to generate passive income that soaks up passive losses from other investments — is precisely what the rule forecloses.
The rule is asymmetric
Net rental income from the self-rental is recharacterized as non-passive. A net loss from the same property generally stays passive. You get the unfavorable characterization in both directions.
It applies property by property
The recharacterization is applied to the specific rental activity leased to the participating business — not to your rental portfolio as a whole. Unrelated third-party rentals are unaffected.
Grouping is not an easy escape
A grouping election under Treas. Reg. §1.469-4 can sometimes align a rental with the operating business, but rentals generally cannot be grouped with a trade or business unless the activities are insubstantial relative to each other or ownership is proportionate. It is a facts-and-circumstances position that binds you going forward.
The practical takeaway: if you own your facility, do not assume the rent is passive income available to absorb losses. Have your CPA confirm the characterization before building a plan on top of it.
Chapter 6
Worked Example: Two Physicians, Same Investment
This is a simplified hypothetical built to isolate one variable — it is not a projection, a representation about any investment, or a template for your own return. Both physicians earn $700,000 of W-2 clinical income, both hold ASC equity producing $180,000 of K-1 income, and both invest in the same real estate deal, which allocates each of them $200,000 of first-year passive loss after a cost segregation study. Assume for the illustration that each one's characterization has already been confirmed by their own CPA.
Note that both of them operate at the center they own.The difference is the size of the center and the scale of their participation within it — which is exactly the distinction that gets lost when this is discussed as “active versus passive investor.”
Dr. A — 40% owner of a small two-physician center
Primary operator · sets the schedule · documented hours well over 500
Because this physician materially participates in the ASC under test 1, that $180,000 is non-passive and out of reach. With no other passive income, the entire $200,000 loss is suspended on Form 8582. The investment may still be excellent — the deduction is deferred, not destroyed — but it produces no current-year offset against the ASC income.
Dr. B — 3% owner of a large multi-specialty center
Operates one day a week · ~350 documented hours · 30+ owners, full-time administration · no aggregation or lookback issue
Approximate current-year benefit
* Hypothetical and illustrative only — not a projection or a representation of any actual or expected result. Assumes top-of-bracket federal rates, that the ASC income is net investment income for NIIT purposes, and no state tax. It assumes each physician's characterization was independently confirmed by their own tax advisor. It ignores basis and at-risk limitations, which can independently restrict a loss before §469 is even reached, and it ignores depreciation recapture at eventual sale. Real outcomes depend on bracket, entity structure, participation facts, K-1 reporting, and the specific investment. Consult your own CPA or tax attorney.
The comparison illustrates why the framing matters: the real estate was identical, and both physicians perform surgery at the center they own. The difference traced to scale — how many hours each one actually logs in the activity, and how many other people participate in it. That is not something either physician could infer from how involved they feel. It comes from measurement against a specific numerical test, which is why this belongs with a CPA who can review the structure, the agreements, and the records.
Chapter 7
If Your ASC Income Is Passive: What to Do With That
For minority owners of large centers, this is often where the analysis lands. If your CPA confirms the income is passive to you, you are in an unusual and genuinely advantageous position: you hold substantial income in the one bucket that passive real estate losses can reach. Most high earners do not.
That does not mean any real estate investment is a good one. It means the tax benefit is actually available to you, so the decision can be made on the merits of the deal rather than on whether a deduction will be stranded. A few things follow from that.
Size the allocation to the income, not to the deduction
Passive losses are only useful up to your passive income. A physician with $180,000 of passive distributions gets full current-year use from roughly that much loss; anything beyond it suspends and waits. Knowing your passive income figure before you commit lets you right-size the investment rather than over-allocate for a benefit that arrives years later.
The NIIT saving is real and often overlooked
Passive ASC income is generally net investment income subject to the additional 3.8% tax. Reducing that income with passive losses typically reduces the NIIT base alongside the income tax base, so the combined benefit exceeds your marginal rate alone. Quick estimates that model only the income tax understate the result.
Understand what cost segregation is actually doing
The large first-year loss comes from reclassifying components into shorter recovery periods and applying bonus depreciation. It is acceleration, not creation — you are pulling deductions forward, which is valuable precisely because you have income to absorb them now.
Cost Segregation Guide →Plan the exit at the same time as the entry
Accelerated depreciation comes back as recapture at sale, and §1245 components are recaptured at ordinary rates rather than the 25% §1250 cap. An investment held long enough, exchanged under §1031, or held to a step-up in basis handles this very differently from one sold outright in three years.
Depreciation Recapture →Do not assume next year looks like this year
Material participation is tested annually, and the aggregation and lookback tests can change your characterization without any change in how you practice. If you cut back at one center and pick up hours elsewhere, or acquire another 100-plus-hour interest, the answer can move. This is worth revisiting with your CPA each year rather than treating as settled.
One Caution
A favorable characterization is a reason to evaluate an investment, not a reason to make one. The tax treatment improves the after-tax return of a sound deal; it does not rescue an unsound one. Underwrite the asset first.
Chapter 8
If Your ASC Income Is Non-Passive
If your CPA concludes the ASC income is non-passive and your clinical income is W-2, the honest answer is that passive real estate losses will not shelter it this year. That does not leave you without options — it means the options are different ones.
Spousal REPS
Real estate professional status is generally unattainable for a practicing physician — the 50% test requires more time in real property businesses than in medicine. But REPS is tested per taxpayer and applies to a joint return. If a spouse can meet the 750-hour and 50% tests and materially participate, rental losses become non-passive and can reach W-2 income. This is the single most powerful move available to a physician household, and it demands real hours and real documentation.
REPS Guide →Build a passive income base deliberately
Suspended losses are only stranded for as long as you have no passive income. Physicians who expect to keep investing often accumulate passive positions with the explicit intent that later cash-flowing years absorb earlier suspended losses. This turns a timing problem into a sequencing decision.
Passive Loss Rules →Plan the disposition, not just the acquisition
A complete taxable disposition of a passive activity to an unrelated party generally frees that activity's suspended losses in full. A physician sitting on years of suspended losses has a real asset, and the year a deal exits is a planning event worth coordinating with a CPA in advance.
Use the strategies that are not §469-limited
Gain deferral does not depend on the passive buckets at all. If your problem is a large realized gain rather than annual income, a 1031 exchange or a qualified opportunity fund addresses it directly and is unaffected by your material participation in an ASC.
1031 vs. Opportunity Zone →Confirm the characterization before you invest
The cheapest step is the first one: have your CPA determine, in writing, whether each of your income streams is passive to you, based on your actual structure and returns. A physician who knows they have genuinely passive income can size a real estate allocation intelligently. One who assumes it is passive may fund a deal for a benefit that never arrives.
Next Step
Questions to Bring to Your CPA
This is the productive use of everything above. None of these are questions to answer yourself — they are the ones worth putting in front of the person who has your returns, your K-1s, and your operating agreements in front of them.
Is my ASC income passive or non-passive to me for §469 purposes — and on what basis?
The threshold question. Ask for the specific test relied on, and whether the conclusion is documented.
Which material participation test do I meet, if any, and how many hours are we counting?
Establishes whether the conclusion is robust or borderline, and what records would need to support it.
How close am I to the 500-hour line, and which of my hours are attributed to the center?
The decisive number in most large-center cases. Also surfaces whether clinical time is attributed to the center or to a separate practice entity.
Do the lookback tests apply to me from prior years?
Five-of-ten, or three prior years in a personal service field, can control the answer regardless of current activity.
How are my entities structured, and does that change the analysis?
Whether the facility, the operating center, and your practice sit in the same or separate entities can matter significantly.
If I own the building my practice or ASC occupies, does the self-rental rule apply?
Determines whether that rent is available as passive income or recharacterized as non-passive.
Do I have suspended passive losses carried forward, and how much?
Often a material and overlooked asset. Worth knowing the balance before planning a disposition year.
Would offsetting this income also reduce my NIIT exposure?
Affects the true value of any offset, and is easy to omit from a quick estimate.
Is a grouping election available or advisable in my situation?
A facts-and-circumstances position with audit exposure that generally binds you in later years — not a self-service election.
If your CPA confirms you have passive income that a real estate allocation could offset, that is the point at which a conversation about specific investments becomes useful. We are happy to have that conversation — and we will still defer to your tax advisor on your tax position.
Pitfalls
Common Mistakes
Assuming "I don't manage it" means passive
Material participation counts work performed in the activity, not just management of it. Clinical hours at your own center are the most commonly overlooked path to the 500-hour test.
Assuming "I operate there" means non-passive
The opposite error, and just as costly — it causes physicians to skip the analysis entirely and forgo a benefit they were entitled to. The tests are quantitative. A minority owner of a large center can operate there regularly and still fall short of 500 hours, with substantial passive distributions as a result.
Estimating hours instead of documenting them
When the answer turns on whether you are above or below 500 hours, a recollection is not a record. Contemporaneous logs are what support the position, in either direction, if the return is ever examined.
Assuming the K-1 settles the question by itself
Material participation is determined at the taxpayer level, and the entity's preparer may not have visibility into all of your hours. The reporting matters and should not be ignored — but if it appears inconsistent with your actual participation or structure, that is a discrepancy for your CPA to reconcile, not one to resolve by assumption in either direction.
Cutting back this year to convert the income
Tests 5 and 6 look backward. Five of ten prior years — or, in a personal service field like medicine, any three prior years — will keep the income non-passive regardless of what you do this year.
Expecting self-rental income to absorb losses
Renting your building to your own practice produces non-passive net income under §1.469-2(f)(6). It cannot be used as a passive income target, and the rule does not reverse for losses.
Forgetting basis and at-risk limits
Sections 704(d) and 465 apply before §469. A loss can be limited by insufficient basis or amount at risk even when you have ample passive income to absorb it.
Treating suspended losses as lost
They carry forward indefinitely and are generally freed on a complete taxable disposition. Writing them off mentally leads investors to ignore a genuine asset in later planning.
FAQ
Frequently Asked Questions
Can real estate depreciation losses offset surgery center income?
Only if the surgery center income is passive to you. Under IRC §469, passive losses offset passive income. Whether your ASC income qualifies turns on material participation, which is measured against seven specific tests — most importantly whether your documented hours in the activity exceed 500 for the year. Minority owners of large multi-specialty centers frequently fall below that line and have passive income even when they operate there; physicians who own a large share of a small center they effectively run frequently do not. Which description fits you is a fact-specific determination that depends on your hours, your entity structure, your participation history, and how your K-1s are prepared — your CPA must make that call after reviewing your returns and operating agreements.
Is ASC K-1 income passive or active?
It depends on your own participation and on how your interest is structured and reported — the same ASC can produce passive income for one physician-owner and non-passive income for another. Operating at the center does not settle it in either direction: a physician who owns a large share of a small center they effectively run will often meet the 500-hour test and have non-passive income, while a minority owner of a large multi-specialty center may operate there regularly and still fall short of 500 hours. Note that the characterization on a K-1 reflects information available to the preparer, who may not have visibility into all of your hours; if the reporting and your actual facts appear to diverge, that is a conversation to have with your CPA rather than something to resolve on your own.
Do the hours I spend performing surgery at the ASC count toward material participation?
Generally yes, where the surgical services are performed in the conduct of that entity's business — time spent working in an activity is participation and does not have to be management time. But counting toward the test is not the same as meeting it. The 500-hour threshold is absolute rather than proportional, and actual in-facility case time for a physician operating roughly one day a week is often in the 300 to 400 hour range. Whether the hours are attributed to the center or to a separate practice entity is also structure-dependent. This is a measurement question for your CPA, not an inference to draw from your schedule.
I am a minority owner of a large surgery center and I operate there. Is my income passive?
It may well be, and this is a common pattern among orthopedic surgeons and ophthalmologists in particular. Large multi-specialty centers have many physician-owners plus full-time administrators and staff, which makes the "substantially all" and "no one participates more" tests unreachable, while an individual owner's in-facility hours frequently fall short of 500 for the year. The result can be substantial distributions that are passive to that owner. It is not automatic, though — the significant participation aggregation test and the prior-year lookback tests can both convert the income to non-passive, so the hours and the structure have to be measured rather than assumed.
What is the self-rental rule and how does it affect physicians?
Under Treas. Reg. §1.469-2(f)(6), if you rent property to a business in which you materially participate, net rental income from that property is recharacterized as non-passive. Physicians who own the medical office building or ASC facility and lease it to their own practice are frequently caught by this. The rule is asymmetric: net income is recharacterized as non-passive, but a net loss generally remains passive — so you cannot use the building to create passive income to soak up other passive losses.
Can I group my surgery center with my real estate to make the losses usable?
Rarely. The grouping rules under Treas. Reg. §1.469-4 only permit grouping activities that form an appropriate economic unit, and a rental activity generally cannot be grouped with a trade or business unless the two are insubstantial in relation to each other or ownership is proportionate. Grouping is also a facts-and-circumstances determination with real audit exposure, and once made it generally binds you in later years. This is not a do-it-yourself election.
Does offsetting passive ASC income also reduce the 3.8% NIIT?
Typically yes, and this is an underappreciated benefit. Passive ASC income is generally net investment income subject to the 3.8% net investment income tax. When passive real estate losses reduce that passive income, they usually reduce the NIIT base along with the income tax base — so the effective benefit exceeds your marginal income tax rate alone.
What happens to passive losses I cannot use this year?
They are suspended, not lost. Suspended passive activity losses carry forward indefinitely and can offset passive income in any future year. They are also generally freed in full when you completely dispose of the activity that generated them in a taxable transaction to an unrelated party — which is why a suspended-loss balance is an asset to be planned around, not a dead deduction.
Continue Learning
Passive Activity Loss Rules
The full §469 framework: the three income buckets, suspended losses, the $25,000 allowance, and how losses are freed on disposition.
Real Estate Professional Status
The 750-hour and 50% tests, all seven material participation tests, grouping elections, and the spousal REPS path for physician households.
Cost Segregation Studies
How the paper losses in this guide are generated — reclassifying components into 5-, 7-, and 15-year lives, with real dollar examples.
Depreciation Recapture
What comes due at sale for the depreciation you claimed, and how a 1031 exchange or step-up in basis defers or eliminates it.