A landlord collecting $8,000 a month in rent pays zero self-employment tax on that income. A flipper who nets $80,000 on a rehab pays 15.3% in SE tax plus ordinary income rates. Same industry. Same dollar amounts. Completely different tax treatment. I walk clients through this distinction every week because it determines which entity structure makes sense, which deductions apply, and how much you actually keep.
The Two Types of Real Estate Income
The IRS does not see "real estate income." It sees two fundamentally different categories, and it taxes them under different rules. The distinction comes down to one question: are you holding the property or selling it?
If you buy a property, rent it out, and collect monthly income, that is passive rental income. It flows through Schedule E on your personal return. In the ordinary case it is not subject to self-employment tax, because IRC Section 1402(a)(1) excludes "rentals from real estate" from net earnings from self-employment. That exclusion has limits, covered below. When you eventually sell, the appreciation is taxed at capital gains rates (0%, 15%, or 20% depending on your income), but the part of the gain that represents depreciation you already deducted is unrecaptured Section 1250 gain and is taxed at up to 25% under IRC 1(h)(1)(E).
If you buy a property, renovate it, and sell it for profit, that is dealer income (also called ordinary business income). It flows through Schedule C. It is subject to self-employment tax at 15.3%. The profit is taxed at ordinary income rates, not capital gains rates. And you cannot use a 1031 exchange to defer the gain, because dealer property is explicitly excluded from 1031 treatment.
The gap between those two columns is enormous. On $100,000 in profit, the rental investor pays zero SE tax and gets long-term capital gains treatment on the appreciation when they sell. The flipper pays about $14,130 in SE tax (15.3% of the 92.35% statutory base set by IRC 1402(a)(12)) and ordinary income rates on the entire profit. Over a career with multiple transactions, the difference runs into the hundreds of thousands.
How Rental Income Is Taxed
Rental income is the simpler of the two. You collect rent. You subtract your expenses (mortgage interest, property taxes, insurance, repairs, management fees, depreciation). The net income flows to Schedule E and gets added to your personal income on your 1040. You pay federal and state income tax at your marginal rates, but you do not pay self-employment tax.
The self-employment tax exclusion is not a loophole or a planning strategy. It is a specific statutory exclusion under IRC 1402(a)(1). Rental income from real estate is excluded from the definition of "net earnings from self-employment." The statute carves out its own exception in the same sentence: the exclusion does not apply where the rentals "are received in the course of a trade or business as a real estate dealer." The regulations add a second carve-out, for payments for the use of rooms or space where you also render services to the occupant, which is how substantial-service short-term rentals commonly get treated. If you are running two flips a year alongside a rental portfolio, or renting nightly with cleaning and concierge service, do not assume the exclusion holds. How your LLC allocates profit and loss among members is governed by your operating agreement, which is also where you document the entity's tax election. I covered this in detail on my LLC vs. S-Corp page because it is the reason S-Corp elections are pointless for landlords.
Notice the last column. Zero self-employment tax. That $38,000 in net rental income is taxed at your marginal federal rate (22% in this example) plus Illinois's flat 4.95%, but the 15.3% SE tax does not apply. On this example, that saves $5,814 compared to active business income.
Two Illinois-specific items the 4.95% figure leaves out. First, if your LLC has more than one member and is taxed as a partnership, the LLC itself owes the Personal Property Tax Replacement Income Tax. 35 ILCS 5/201(c) imposes it "on every corporation (including Subchapter S corporations), partnership and trust," and 201(d) sets the rate for a partnership at "an additional amount equal to 1.5% of such taxpayer's net income for the taxable year." That 1.5% sits on top of the members' 4.95%, so a multi-member rental LLC carries roughly 6.45% of Illinois tax, not 4.95%. A single-member LLC treated as a disregarded entity is not a partnership for this purpose and owes none of it, which is a real reason to think about how many members the entity has.
There is one additional federal tax to watch for. The 3.8% Net Investment Income Tax under IRC 1411 applies to the lesser of your net investment income for the year or the amount by which your modified adjusted gross income exceeds the threshold: $250,000 filing jointly, $125,000 married filing separately, $200,000 in any other case. Those thresholds are not indexed for inflation, so more landlords cross them every year. Crossing the line does not mean the full 3.8% lands on all of your rental income. It also does not automatically catch rental income at all: Section 1411(c)(1)(A)(i) excludes rents derived in the ordinary course of a trade or business that is not a passive activity, and Section 1411(c)(2) ties the passive question to Section 469. A landlord who materially participates in a rental trade or business may owe no NIIT on the rents. Once you add W-2 income to rental net income, most owners in the three-to-five property range are over the MAGI threshold, so the question worth asking is not whether you cross it but whether your rentals are net investment income in the first place.
How Fix-and-Flip Income Is Taxed
I spend more time explaining flip taxes than any other topic in my practice. A flipper who buys a distressed property, renovates it, and sells it at a profit is not an "investor" in the eyes of the IRS. The IRS classifies that person as a dealer. The property is "inventory," not a "capital asset." And the profit is ordinary income, not capital gain.
The tax consequences of dealer status are severe. The profit is reported on Schedule C. It is subject to the full 15.3% self-employment tax (12.4% Social Security up to the wage base, plus 2.9% Medicare with no cap). It is taxed at ordinary income rates, which can reach 37% federally. And the property cannot qualify for a 1031 exchange. IRC Section 1031(a)(1) allows nonrecognition only for real property "held for productive use in a trade or business or for investment," and Section 1031(a)(2) then says flatly that "this subsection shall not apply to any exchange of real property held primarily for sale." Dealer property is held for sale to customers, so it is excluded twice over.
Take an $80,000 flip profit for a single filer in the 24% bracket. Self-employment tax is not 15.3% of $80,000. IRC 1402(a)(12) computes net earnings from self-employment on 92.35% of the profit, so the base is $73,880 and the SE tax is about $11,304. You then deduct half of that, about $5,652, above the line under IRC 164(f). Applying a 24% rate to what is left and Illinois's 4.95% on top, the total lands near $32,800, or roughly 41% of the profit. (Applying one marginal rate to the whole profit is a simplification; your real federal number depends on where the profit sits in the bracket table and on the rest of your return.) The same $80,000 as long-term capital gain for an investor would run roughly 15% federal plus 4.95% Illinois, or about $15,960. The dealer classification costs something on the order of $16,800 more on the same dollar amount. One threshold point that gets skipped: SE tax only applies if the activity is a trade or business in the first place. A genuine one-off investment sale produces capital gain and no SE tax at all, which is exactly what the dealer-versus-investor fight is about.
The Dealer vs. Investor Test
The IRS does not have a bright-line rule for when you cross from "investor" to "dealer." Courts have developed a multi-factor test over decades of litigation, and the factors vary by circuit. The factors most often quoted come from Biedenharn Realty Co. v. United States, 526 F.2d 409 (5th Cir. 1976) (en banc), and the cases that followed it. Biedenharn is a Fifth Circuit decision, so it does not bind an Illinois taxpayer, who sits in the Seventh Circuit. It is cited widely outside the Fifth Circuit, and it remains the clearest statement of what the IRS actually weighs, which is why I use its framework here.
The factor that carries the most weight in practice is frequency and continuity of sales. A landlord who sells one property every few years after renting it for a decade is clearly an investor. A person who buys, rehabs, and sells four houses in a single year is almost certainly a dealer. The gray area is the person who does two flips a year while holding a rental portfolio. I've seen the IRS go after those hybrid investors, and the outcome depends heavily on how the returns were filed and how the properties were held.
One strategy I use with clients who do both is holding the rental properties in one LLC and the flip properties in a separate entity. The IRS can still look through the entities to your overall activity, but having separate books, separate bank accounts, and separate returns makes it harder for the IRS to argue that all of your properties are dealer inventory. It is not bulletproof, but it demonstrates intent, and intent is what the factors are measuring.
Tax Brackets for Real Estate Income
Knowing your bracket matters because it determines how much of your rental net income or flip profit you actually keep. Illinois has a flat 4.95% state income tax, which simplifies the state side. The federal side is progressive.
Most of the landlords I work with in the DuPage and Cook County area have combined household income (W-2 plus rental) landing in the 22% or 24% bracket. Add the Illinois 4.95% flat rate, and your marginal rate on rental income held in a single-member LLC is roughly 27% to 29%. Hold it in a multi-member LLC taxed as a partnership and the 1.5% replacement tax pushes that to roughly 28% to 30%. For a flipper in the same bracket who also owes SE tax on 92.35% of the profit, the combined marginal rate runs into the low 40s.
One detail that catches people off guard: your real estate income stacks on top of your W-2 income. If you earn $85,000 from your day job, you're already in the 22% bracket. Your first dollar of rental income or flip profit starts at 22%, and additional income pushes you into higher brackets. I've had clients shocked by a tax bill on a $120,000 flip profit because they forgot it was being taxed on top of their $90,000 salary, pushing a significant chunk into the 32% bracket.
Property Management Expenses and Net Operating Income
Every dollar you can legitimately deduct from your gross rental income reduces your taxable income dollar-for-dollar. Your CPA handles the return, but you need to understand what counts because you are the one tracking expenses and keeping receipts throughout the year.
Two items from that grid trip up landlords regularly. The first is the repair vs. improvement distinction. Replacing a broken faucet is a repair, deductible in full the year you pay for it. Replacing every fixture in a bathroom during a remodel is an improvement, capitalized and depreciated over 27.5 years. The IRS issued extensive guidance in the tangible property regulations (Treas. Reg. 1.263(a)-3), and the test comes down to whether the work adapts, betters, or restores a "unit of property." Your CPA needs the detail on what was done, not just the total dollar amount on the invoice.
The second is the $750,000 mortgage interest cap. That cap applies to your personal residence. It does not apply to investment property. Mortgage interest on rental property held in your LLC is deductible against rental income on Schedule E without any personal-residence cap. It is not literally uncapped, since interest on a rental trade or business is business interest subject to the Section 163(j) limitation, but most landlords at this scale fall under the small-business gross receipts exception in Section 163(j)(3). Same with property taxes: the $10,000 SALT deduction cap does not apply to investment properties. I've had clients leave thousands in deductions on the table because they assumed the personal residence limits applied to their rentals. They do not.
Unpaid Rent: Cash vs. Accrual Basis
A tenant owes you $2,000 for March. March passes. April passes. You never collect. Do you owe income tax on that $2,000?
The answer depends on your accounting method, and almost every individual landlord I work with uses the cash method.
Under the cash method, you report rental income when you actually receive it. If the tenant never pays, you never report the income, and you owe no tax on it. You do not need to take a bad debt deduction because you never included the amount in income in the first place.
Under the accrual method, you report rental income when it is earned, regardless of when (or whether) you collect it. March's rent is March income even if the check never arrives. If the tenant ultimately doesn't pay, you take a bad debt deduction under IRC Section 166 to offset the income you already reported. This creates extra paperwork and timing headaches.
The cash method is almost always better for individual landlords. If you use a property management company, check which method they report on your 1099. Some management companies report on accrual basis, which can create a mismatch with your personal cash-basis reporting. I've seen this cause problems during audits when the 1099 from the management company shows income the landlord never received.
What Is Your Entity Structure Costing You?
Enter your approximate annual numbers:
Entity Structuring for Real Estate: Your Options
- S-Corp for rental income: $5,500-$9,500/yr wasted
- Flip income misclassified: IRS penalties
- Hybrid investor with no entity separation: audit risk
- Over a career: hundreds of thousands in unnecessary tax
- Entity structure matched to your actual activity
- Rental vs. flip classification reviewed
- Operating agreement with correct tax elections
- Hybrid investor? Separate entities for each activity
- Tax classification guidance
- Can't form the LLC or draft the OA
- Can't transfer deeds or review title
- You still need a separate attorney
What this costs without an attorney:
A flipper who nets $80,000 and is classified as a dealer pays $35,400 in federal and state tax (44.25% effective rate). The same $80,000 held as a rental investor pays capital gains rates. Over a career, the difference runs into the hundreds of thousands.
What this costs with us:
$750 LLC formation with tax structure review included. I match the entity to your actual activity so the IRS classification works in your favor.
Your Entity Structure Is a Tax Decision
I'll review your portfolio, confirm the right LLC structure for your tax situation, and make sure your entity isn't costing you more than it should.
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1099-S, FIRPTA, and LLC Sales
When you sell real estate through an LLC, two federal reporting forms come into play that individual homeowners rarely think about. If you are flipping through an LLC, you will deal with both of these on every transaction.
Form 1099-S: Proceeds from Real Estate Transactions
The title company or closing attorney is required to file Form 1099-S reporting the gross proceeds of every real estate sale. This form goes to the IRS. It reports the sale price, the date, and the seller's taxpayer identification number. For an LLC sale, the TIN reported is the LLC's EIN, not your Social Security number.
The IRS matches every 1099-S against filed returns. If the 1099-S shows your LLC sold a property for $340,000 and your tax return doesn't report a corresponding sale, the IRS sends an automatic notice. This is not a maybe. It is an automated matching program. Flippers who sell multiple properties per year through LLCs generate multiple 1099-S forms, and every one of them must tie to the return.
FIRPTA, Section 1446, and Foreign Members
FIRPTA, IRC Section 1445(a), requires the buyer to deduct and withhold 15% of the amount realized when a foreign person disposes of a U.S. real property interest. The definition does more work than the rate. Section 1445(f)(3) defines a foreign person as any person other than a U.S. person, and a domestic multi-member Illinois LLC is itself a U.S. person. When your Illinois LLC is the seller, the LLC is the transferor. It furnishes the non-foreign affidavit described in Section 1445(b)(2), and the withholding at closing is zero, even if one of its members is a Canadian. There is no version of that deal in which a title company withholds 15% of the gross price because a minority member is foreign.
A foreign member is still a live issue, just a different one. IRC Section 1446 taxes a foreign partner's allocable share of the partnership's effectively connected taxable income, and Treasury Regulation 1.1446-3(c)(2) provides that "a domestic partnership that is otherwise subject to the withholding requirements of sections 1445 and 1446 will be subject to the payment and reporting requirements of section 1446 only and not section 1445(e)(1)." Three consequences people get backwards at the closing table. The withholding agent is the LLC, not the title company or the buyer. The payments run quarterly on Forms 8813, 8804 and 8805, not out of the closing proceeds. And the base is the foreign partner's share of the gain, not the gross sale price. Section 1446(b)(2) sets the rate at the highest rate specified in Section 1 for a foreign partner that is not a corporation and the highest Section 11(b) corporate rate for one that is, so the dollar figure turns on the partner's status and the rate in effect that year. Run it with your CPA before you sign a contract, and do not let anyone quote you a number off the gross price.
The 15%-of-gross rule does apply in one structure, and it is the structure this page exists to distinguish: a single-member LLC owned by a foreign person is disregarded, so the foreign owner is the transferor and Section 1445(a) hits the amount realized. If that is your situation, the withholding can be reduced or eliminated by filing IRS Form 8288-B for a withholding certificate before closing. Section 1445(c)(3)(B) requires the Secretary to act on the request within 90 days, so it takes advance planning.
FinCEN Beneficial Ownership Reporting: Where It Actually Stands
The Corporate Transparency Act was written to make most LLCs file Beneficial Ownership Information reports with FinCEN, the Financial Crimes Enforcement Network. That is not the rule that applies to an Illinois LLC today. FinCEN's interim final rule published March 26, 2025 at 90 Fed. Reg. 13688 rewrote the definition of "reporting company" to reach only entities "formed under the law of a foreign country" and registered to do business in a State or tribal jurisdiction, and it added an exemption for entities created by a filing with a secretary of state under the law of a State or Indian tribe. In plain terms: if your LLC was formed in Illinois, you owe no federal FinCEN BOI filing. An entity formed abroad and registered to do business here still reports.
This is an interim final rule, which means it can change. Before you rely on it for a new entity, check FinCEN's current guidance at fincen.gov/boi. Note also that this covers the federal filing only. Some states run their own beneficial-ownership or landlord-disclosure regimes, and Chicago requires landlords to identify an owner and an agent for service in writing at the start of a tenancy.
What this changes practically: for an Illinois-formed LLC, BOI is one compliance item you can take off the list, alongside the ones that remain, like maintaining a registered agent and filing your annual report. What it does not change is 1099-S matching, which runs independently of anything FinCEN does. Every closing generates a 1099-S with the LLC's EIN and the sale price, and the IRS matches those against filed returns automatically. A flipper selling three properties through three separate LLCs generates three 1099-S forms, and every one of them has to tie to a return.
So the enforcement pressure on flippers is real, but it comes from information reporting the IRS has had for decades, not from a beneficial-ownership database that, for domestic LLCs, is not being populated. Anonymity was never much of a tax shield anyway: the EIN on the 1099-S leads back to a return. If you are flipping through LLCs, your returns need to be airtight for that reason.
1031 Exchanges: Deferring the Capital Gain
A 1031 exchange lets you sell an investment property and reinvest the proceeds into a "like-kind" replacement property without paying capital gains tax on the sale. The gain is deferred, not eliminated. You will owe tax when you eventually sell the replacement property (unless you do another 1031 exchange, and so on).
The critical rule that connects back to everything on this page: dealer property does not qualify for a 1031 exchange. IRC Section 1031(a)(1) allows nonrecognition only for property "held for productive use in a trade or business or for investment," and Section 1031(a)(2) provides that the subsection "shall not apply to any exchange of real property held primarily for sale." Property held primarily for sale to customers, which is dealer property, is explicitly excluded. Two other limits worth knowing since the 2017 amendments: Section 1031 now reaches real property only, and Section 1031(h) provides that real property inside and outside the United States are not of like kind. If the IRS classifies you as a dealer, your flip properties cannot be exchanged tax-free. The gain is taxable at ordinary rates plus SE tax in the year of sale, with no deferral available.
For rental property investors, 1031 exchanges are one of the most powerful tax planning tools in real estate. You can sell a $400,000 rental with $150,000 in gain, roll it into a $600,000 replacement property, and defer the entire $150,000 gain. You have 45 days from the date you transfer the relinquished property to identify replacements, and 180 days to close. Read the second deadline carefully, because Section 1031(a)(3)(B) caps it: the replacement must be received by the earlier of 180 days after the transfer or "the due date (determined with regard to extension) for the transferor's return" for the year of the transfer. Sell in November and your 180 days quietly becomes about 150 unless you file an extension. That is the single most common way a year-end exchange blows up. I've walked clients through the mechanics of this dozens of times, and I cover the full process, the deadlines, and the common mistakes in my 1031 exchange guide.
$750 LLC Formation. Tax Structure Included.
I'll form the LLC, draft the operating agreement, and make sure your entity structure matches your tax situation. Rental investors and flippers need different setups.
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Frequently Asked Questions
A tax attorney consultation in Chicago runs $300 to $500 per hour. A CPA who misclassifies your flip income as capital gains can cost you tens of thousands in penalties when the IRS reclassifies you as a dealer. My $750 LLC formation includes a tax structure review, so your entity matches your actual investment activity from day one. Pay what you owe and nothing more.
Further Reading
External resources: IRC Section 1402 (Self-Employment Tax) · IRC Section 1031 (Like-Kind Exchanges) · IRC Section 1411 (Net Investment Income Tax) · FinCEN: Beneficial Ownership Information
Questions about your tax situation? Call 630-839-9195 or text 312-489-8710.