Does holding my STR in an LLC prevent me from using the STR loophole?

No. A single-member LLC taxed as a disregarded entity is transparent for tax purposes, so the loophole analysis is identical to holding the property in your own name. A multi-member LLC or S-corp also passes losses through, but each owner must independently meet a material participation test under Treas. Reg. §1.469-5T.

Does each partner in a multi-member LLC need to materially participate separately?

Yes. Under Treas. Reg. §1.469-5T, passive activity status is determined at the individual partner level, not the entity level. If you log 120 hours and your co-owner logs 10, only you have a realistic path to non-passive treatment on your K-1 share of the loss.

Can an S-corp use the STR loophole?

Technically yes, but S-corps add complications including the reasonable compensation requirement and potential arguments that rental income is automatically passive in a corporate context. Most tax professionals prefer a disregarded SMLLC or a partnership for STR loophole purposes. Consult a CPA before using an S-corp for this strategy.

What tax form does a multi-member LLC file for a short-term rental?

A multi-member LLC taxed as a partnership files Form 1065 and issues Schedule K-1s to each member. Those K-1 amounts flow to Schedule E on each owner's Form 1040. Whether the losses are passive or non-passive is then determined by each owner's material participation level.

Has the Tax Court ruled on material participation inside pass-through entities?

Yes. Cases like Moss v. Commissioner and Almquist v. Commissioner established that participation hours must be documented contemporaneously with dates, specific tasks, and start/end times. Reconstructed estimates or rounded totals have repeatedly been rejected, regardless of the entity structure.

STR Loophole with LLC or S-Corp: How to Claim It

You just closed on a Smoky Mountains cabin. Your attorney set up a single-member LLC, your CPA put the property on the books, and you ran the numbers with a cost segregation study. On paper, you have a significant first-year loss ready to offset your W-2 income. Then the question hits: does the LLC actually let those losses flow through to your personal tax return?

This is worth understanding before you file. The answer depends entirely on how the entity is structured and taxed.

TL;DR: Yes, you can claim the STR loophole with a property held in an LLC or S-corp, but the entity structure determines how losses reach your personal return. A single-member LLC is invisible to the IRS and passes losses through automatically. A multi-member LLC taxed as a partnership and an S-corp both pass losses through, but material participation must be tested at the owner level, and the passive activity rules under IRC §469 still apply to each individual partner or shareholder separately.

Can You Claim the STR Loophole Through an LLC or S-Corp?

Yes. The STR loophole itself does not care about your entity structure. What it cares about is the average guest stay and your participation level.

Under Treas. Reg. §1.469-1T(e)(3)(ii)(A), a rental activity whose average guest stay is 7 days or less is not treated as a rental activity for passive loss purposes. It gets reclassified as a trade or business. Once that happens, you only need to materially participate to make the losses non-passive, and non-passive losses offset ordinary income, including your W-2.

The entity is just a legal wrapper. The tax treatment flows through to whoever owns that entity.

But the wrapper matters for mechanics. And the wrong entity choice, or the wrong setup inside the right entity, can trap those losses just as effectively as never qualifying in the first place.

How Each Entity Type Affects the Flow-Through

Single-Member LLC

A single-member LLC (SMLLC) taxed as a disregarded entity is the simplest case. The IRS ignores the entity entirely. You report the rental activity on Schedule E (Part I) of your personal return, just as if you owned the property in your own name.

Material participation is tested against you as the individual. The 7-day average stay rule applies to the rental. Done. Nothing about a SMLLC complicates the analysis.

If you want to understand whether the SMLLC structure itself makes sense compared to holding title personally, the full breakdown of that decision is here. That article covers liability protection, lender considerations, and cost. This article assumes you're already in an entity and want to know how to execute the loophole correctly.

Multi-Member LLC (Partnership)

This is where most people hit an unexpected wall.

A multi-member LLC taxed as a partnership files its own return (Form 1065). The rental income, losses, depreciation, and other items flow through to each partner on a Schedule K-1. Each partner then takes that K-1 onto their own Form 1040.

Here is the critical part: each partner's passive activity status is determined at the partner level, not the entity level. The IRS looks at each individual owner separately under Treas. Reg. §1.469-5T.

That means you need to materially participate in your individual capacity. The partnership does not materially participate. You do.

If you own 50% of an LLC with a friend, and you log 120 hours of management work during the year, and your co-owner logs 10, only you have a shot at meeting the 100-hour-and-more-than-anyone-else test under Test 3. Your co-owner's K-1 loss will likely remain passive.

For a deeper look at how this plays out when spouses or business partners share a property, this guide on STR loophole partnerships explains who actually gets the tax benefit.

S-Corp

An S-corp is a flow-through entity that files Form 1120-S and issues K-1s to shareholders. Most of the same rules apply as with a partnership: the losses pass to you on your K-1, and you test material participation at the shareholder level.

S-corps add one complication: the IRS scrutinizes whether an S-corp owner-operator is paying themselves a reasonable salary. If you're actively managing the STR and the S-corp is earning income, the IRS could argue you need to pay yourself a W-2 wage from the corporation before taking distributions. That wage is subject to payroll taxes.

There's also a gray area worth flagging honestly. When a rental property is held in an S-corp, some tax professionals argue that the rental income and losses are automatically treated as passive because S-corps aren't designed to hold passive investments. The more cautious interpretation is that the 7-day rule still reclassifies the activity at the entity level, and material participation at the shareholder level then determines whether the loss is non-passive. Your CPA needs to take a position here. This is not a settled edge that you can paper over.

For most short-term rental investors, a disregarded SMLLC or a multi-member LLC taxed as a partnership is the cleaner structure for the STR loophole than an S-corp. That said, S-corps have legitimate uses in other contexts. Just make sure the entity serves the tax strategy, not the other way around.

Material Participation Inside an Entity: The Practical Test

Whether you're in a partnership or S-corp, you personally need to meet one of the material participation tests under Treas. Reg. §1.469-5T:

Test 1: You participated more than 500 hours during the year.
Test 2: Your participation was substantially all participation by anyone.
Test 3: You participated more than 100 hours AND more than anyone else, including cleaners, co-hosts, and property managers.

Test 3 is the one most STR owners use. You don't need 750 hours. You don't need to qualify as a real estate professional. You just need to beat everyone else who touched the property, and log it correctly.

What counts as participation? Booking management, guest communication, listing optimization, maintenance coordination, reviewing financials, and oversight of third-party vendors. What does not count: time spent as an investor reviewing financial statements with no operational role, or "on-call" time where you didn't actually do anything (see Moss v. Commissioner).

Contemporaneous logs are essential. The IRS and Tax Court have rejected reconstructed estimates, rounded hours, and logs with no start/end times. An app like the STR Loophole app at strhours.com is built specifically to create the kind of dated, timestamped, task-level records that hold up under scrutiny.

A Worked Example: Multi-Member LLC with Cost Segregation

Here's how the math looks in a real scenario.

Assumptions:

Two-owner LLC (you own 60%, your spouse owns 40%)
STR purchase price: $600,000; depreciable basis after land: $480,000
Cost segregation study reclassifies 30% ($144,000) into 5- and 15-year components
100% bonus depreciation on reclassified components (permanent under the One Big Beautiful Bill Act, signed July 2025)
Remaining basis ($336,000) depreciates over 27.5 years: ~$12,218/year
Gross rental income: $70,000; operating expenses (mortgage interest, insurance, repairs, management): $52,000
Your combined federal marginal rate: 35%

Year-one depreciation:

Bonus depreciation on reclassified components: $144,000 (100%, taken entirely in Year 1)
Standard depreciation on remaining basis: $12,218
Total depreciation: $156,218

Income / loss calculation:

Revenue: $70,000
Operating expenses: $52,000
Depreciation: $156,218
Net loss: $138,218

Your share (60%): $82,931 loss

Tax impact at 35% marginal rate: $82,931 × 0.35 = $29,026 in tax savings

That $29,026 comes off your actual tax bill. Not a deferral, not a credit, a dollar-for-dollar reduction against your ordinary income.

Your spouse (40% owner) shows a $55,287 loss on their K-1. If your spouse also materially participates and meets the 100-hour test independently, their loss is non-passive too. If they don't, that $55,287 sits in a suspended passive loss carryforward until a future year or until you sell the property.

You can run the numbers for your own property at our cost segregation calculator at strhours.com/calculator.

The LLC Tax Reporting Question

One thing that surprises many STR owners: the schedule you file depends on the property use and entity type, not just the fact that it's an Airbnb.

A disregarded SMLLC reports on Schedule E. A multi-member LLC files Form 1065 and issues K-1s, which then flow to Schedule E. An S-corp files Form 1120-S and issues K-1s.

What you don't want is to end up on Schedule C, which would bring self-employment tax (15.3% on net profit) into the picture. That risk arises when you provide substantial personal services beyond standard hospitality, things like daily housekeeping, prepared meals, or concierge services that look more like a hotel than a rental. Standard between-guest cleaning stays on Schedule E under IRS Publication 527. If you're unsure where your operation falls, this guide to Schedule E vs. Schedule C for STR hosts walks through the line.

Key Takeaways

The STR loophole works through an LLC or S-corp, but material participation is tested at the individual owner level, not the entity level.
A single-member disregarded LLC is the cleanest wrapper. A multi-member LLC requires each partner to independently meet a material participation test.
S-corps add complexity (reasonable compensation, potential passive activity arguments) that rarely justifies the tradeoff for most STR investors.
Cost segregation plus 100% bonus depreciation can generate substantial first-year paper losses. Entity structure determines whether those losses reach your personal return.
You do not need real estate professional status and you do not need 750 hours. You need an average guest stay under 7 days and personal material participation.
Log every hour. Per-entity. Per person. With dates, tasks, and times.

Bottom Line

If your STR is in an LLC or S-corp, the loophole is still available to you. But "available" and "automatic" are not the same thing. The entity passes the loss to your return; it does not determine whether that loss is passive or non-passive. You do, by meeting a material participation test in your own name.

Get the structure right, log your hours properly, and run the cost segregation math before you file. Those three steps are the difference between a meaningful tax result and a suspended loss you can't touch until you sell.

Sources

This article is for educational purposes only and is not tax or legal advice. Talk to a CPA who knows short-term rentals before you act on it.

How to Claim the STR Loophole with a Property Held in an LLC or S-Corp