LLC vs. S-Corp for Illinois Landlords: You're About to Waste $5,000 a Year

Justin Abdilla, Esq.

Managing Attorney, Abdilla & Associates · ARDC #6308444

I form LLCs for Illinois landlords and investors every week. At least twice a month, someone walks in asking about S-Corp election for their rental properties because they heard it saves on taxes. I walk them through the math. They keep the LLC.

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Someone at a BiggerPockets meetup or a YouTube video told you to elect S-Corp status for your rental LLC. Before you do that, I need you to read one section of the Internal Revenue Code. It will save you thousands of dollars a year.

LLC vs. S-Corp for Rental Property: The Short Answer

For rental property, keep the LLC and skip the S-Corp election. IRC Section 1402(a)(1) excludes rental income from self-employment tax. You cannot save a tax you never owed. The S-Corp election adds $4,000 to $8,000 in annual costs. It saves $0 in self-employment tax on rent. Form a standard LLC for liability protection. Take the default pass-through taxation. Elect S-Corp status only for active income, such as flipping, consulting, or management fees. My flat fee for the LLC is $750, and it includes the operating agreement.

The S-Corp Pitch

The S-Corp argument goes like this: in a standard LLC, all of your business income is subject to self-employment tax at 15.3% (12.4% Social Security plus 2.9% Medicare). If you elect S-Corp status, you pay yourself a "reasonable salary" and only that salary is subject to FICA taxes. Everything above the salary comes out as a distribution, and distributions are not subject to FICA. So you save 15.3% on whatever you can push into distributions.

For an active business (a consulting firm, a marketing agency, a medical practice), that math works. If you're earning $200,000 in active income and you set a reasonable salary of $80,000, you save roughly $18,000 a year in FICA taxes on the $120,000 in distributions. After S-Corp compliance costs, you come out ahead.

For a landlord collecting rent, the math falls apart completely. And the reason is one sentence in the tax code.

The One Statute That Ends This Debate

IRC Section 1402(a)(1) defines "net earnings from self-employment." Buried in that definition is an exclusion: "rentals from real estate" are not net earnings from self-employment.

Read that again. Rental income from real estate is specifically, statutorily excluded from self-employment tax. It has been excluded since the statute was written. This is not a loophole, a gray area, or an aggressive tax position. It is black-letter tax law.

If you own rental property through a single-member LLC, your rental income flows to Schedule E on your personal tax return. Schedule E income is not subject to self-employment tax. You pay zero FICA on your rental income right now, today, in your LLC. I break down exactly how rental income and fix-and-flip income are taxed differently in my guide to real estate earnings and taxes.

The S-Corp's entire value proposition for landlords is saving you from a tax you do not owe.

Annual Cost: LLC vs. S-Corp

I'm going to lay out the actual annual operating cost for each structure. These are real numbers for an Illinois landlord with $75,000 in net rental income.

That cost-compare grid assumes a $30,000 reasonable salary, which is modest. If the IRS or your CPA sets the salary higher, the FICA and payroll costs go up proportionally.

And the SE tax savings on the distribution side? Still zero. Rental income was never subject to it.

What an S-Corp Actually Costs You Every Year

Let me break down each line item so you can see exactly where the money goes.

Form 1120-S Preparation: $1,200 - $2,500

An S-Corp must file a separate federal return (Form 1120-S) every year, even in years with no activity. This is not a Schedule E tacked onto your 1040. It is a full corporate tax return with its own K-1s, basis calculations, and shareholder distribution tracking. CPAs in the Chicago area charge $1,200 to $2,500 for a straightforward 1120-S. If you have multiple properties, the cost goes up.

Illinois adds Form IL-1120-ST and Schedule K-1-T for each shareholder. Most CPAs bundle this with the federal prep, but it adds $200 to $500 to the bill. Miss the March 15 deadline and IRC 6699 imposes a monthly penalty on the S corporation. The statutory base in Section 6699(b)(1) is $195 per month per shareholder, indexed annually under Section 6699(d), so the figure you actually pay is higher than $195 and changes each year. Check the current revenue procedure before you budget for it. Two details worth knowing: Section 6699(a) caps the penalty at 12 months, and Section 6699(c) assesses it against the corporation, not against you personally.

Payroll: $600 - $1,200 (Service) + $2,295+ (FICA)

The IRS requires S-Corp shareholders who provide services to the corporation to receive a "reasonable salary" subject to payroll taxes. Collecting rent, arranging repairs, and managing tenants are services. The IRS can and does reclassify distributions as wages when shareholders pay themselves $0 in salary, and the penalties include back FICA taxes plus interest.

Running payroll means a payroll service (Gusto, ADP, or similar) at $50 to $100 per month. It means quarterly Form 941 filings. It means W-2 preparation. It means Form 940 for federal unemployment. It means quarterly Illinois unemployment filings. And it means employer FICA: 7.65% of whatever salary you set. On a $30,000 salary, that is $2,295 per year in employer-side payroll taxes alone.

Workers' Compensation: $750 - $1,500 (Often Optional for the Officer)

Illinois requires workers' compensation insurance for employers, and S-Corp shareholders who take W-2 wages are employees of the corporation. There is an officer opt-out, and it does not depend on how much stock you own. It lives at 820 ILCS 305/3(17)(b), and as the Appellate Court quotes it, "the corporate officers of any corporation may elect to withdraw themselves as individuals from the operation of the Act," with a "corporate officer" defined as "a bona fide President, Vice President, Secretary or Treasurer of a corporation who voluntarily elects to withdraw." Country Mutual Insurance Co. v. D and M Tile, Inc., 394 Ill. App. 3d 729, 733-34 (3d Dist. 2009). No ownership percentage appears in the test; the questions are whether you genuinely hold the office and whether the election is voluntary. So a single-shareholder S-Corp officer can usually elect out. Carriers frequently want coverage anyway as an underwriting matter, which is a business decision, not a legal requirement. Minimum annual premiums for clerical and property management classifications run $750 to $1,500.

Bookkeeping Overhead: $500 - $1,500

An LLC needs a separate bank account, basic income/expense tracking, a registered agent, and an operating agreement. An S-Corp needs all of that plus corporate minutes, shareholder basis tracking (which does not include entity-level debt, unlike an LLC), separate payroll records, quarterly tax deposit reconciliation, and year-end W-2 reconciliation. The added complexity costs $500 to $1,500 per year in additional bookkeeping or CPA time, depending on whether you do it yourself or hire it out.

Illinois Replacement Tax

Illinois imposes a 1.5% personal property replacement tax on S-Corp net income. Some landlords assume this is a reason to avoid S-Corp status. It is not, because multi-member LLCs pay the exact same 1.5% replacement tax on partnership income. The rate is identical for both structures.

Single-member LLCs are the exception: because income passes directly to the individual's IL-1040, there is no entity-level replacement tax. This is actually another advantage of keeping a single-member LLC over electing S-Corp status. The S-Corp pays the 1.5% replacement tax. The single-member LLC does not.

The 1.5% applies to the entity's net income, which is computed after the reasonable salary this same page says you have to pay yourself. On $75,000 of revenue with the $30,000 salary assumed in the cost grid above, net income is roughly $45,000 and the replacement tax is roughly $675, not $1,125. Run it against your own salary number rather than against gross. Either way, it is money the single-member LLC owner keeps.

S-Corps Create Real Estate Problems

1031 Exchanges Get Complicated

A 1031 exchange lets you defer capital gains tax by reinvesting sale proceeds into a like-kind property. The exchange must be between the same taxpayer. Property held inside an S-Corp is the corporation's property, not yours. To do a 1031 exchange, the S-Corp itself must execute the exchange at the entity level. You cannot pull the property out of the S-Corp, do a personal exchange, and put the replacement property back in without triggering gain recognition.

With an LLC, the property is effectively yours (for tax purposes) through the pass-through. A single-member LLC is a disregarded entity, so you are the taxpayer and you do the 1031 exchange directly. No complications.

You Lose Debt Basis for Depreciation Losses

This one is technical but it matters. LLC members can include their share of entity-level debt in their tax basis under IRC Section 752. If your LLC has a $300,000 mortgage, that $300,000 is part of your basis, which means you can deduct depreciation and other losses up to that amount.

S-Corp shareholders cannot include entity-level debt in their basis. Under IRC Sections 1366 and 1367, shareholder basis only includes stock basis and direct loans from the shareholder to the corporation. The mortgage on the property does not count. If your S-Corp has $50,000 in stock basis and $300,000 in mortgage debt, your deductible losses are limited to $50,000. In the LLC, your basis is $350,000.

For landlords using cost segregation or accelerated depreciation (which many should be), this basis limitation can freeze your ability to use depreciation losses in the years you need them most.

Built-in Gains Tax on Conversion

The built-in gains tax under IRC Section 1374 gets cited on this point more often than it applies. Section 1374(c)(1) says the tax "shall not apply to any corporation if an election under section 1362(a) has been in effect with respect to such corporation for each of its taxable years." When an LLC elects S status directly, the deemed corporation has been an S corporation for every one of its taxable years, so Section 1374 generally does not reach it. The BIG tax targets entities with C corporation history, or assets taken with a carryover basis from a C corporation under Section 1374(d)(8). The five-year recognition period in Section 1374(d)(7) is real; the trigger is what gets misstated. The trap that does fire on a leveraged, long-depreciated rental is a different one: the deemed Section 351 incorporation can produce immediate gain under Section 357(c) when the property's liabilities exceed its basis. If you later decide to unwind the structure entirely, dissolving the entity after an S-Corp election adds its own layer of complexity that a standard LLC avoids.

When an S-Corp Actually Makes Sense

I am not saying S-Corps are bad. They are bad for passive landlords. They are excellent for active business income.

If you run a property management company and you charge management fees to other property owners, those fees are active income subject to self-employment tax. An S-Corp election lets you split that income between salary and distributions, and the FICA savings on distributions are real. For a PM company netting $150,000 in management fees, the S-Corp saves roughly $10,000 to $12,000 in FICA after compliance costs.

House flippers with significant volume also benefit. Flip income is dealer income, not passive rental income, and it is subject to SE tax. A flipper clearing $200,000 in profits can save substantially with an S-Corp election once the compliance costs are absorbed.

Short-term rental operators who provide substantial hotel-like services (daily cleaning, concierge, meal service) may have their income reclassified as active rather than passive. If that happens, the S-Corp argument starts to make sense. But a landlord renting out apartments on 12-month leases? That income is passive. IRC 1402(a)(1) applies. The S-Corp adds cost with no benefit.

How to Form an S-Corp in Illinois (If You Still Want One)

Some owners still need the election for active income. An S-Corp is a tax election, not an entity. You place the election on an LLC or a corporation you already formed. The path has four steps.

1. Form the entity. File an LLC or a corporation with the Illinois Secretary of State. You do not form the S-Corp itself at the Secretary of State.
2. File IRS Form 2553 within the election window. Illinois follows the federal election automatically. You do not file a separate Illinois election.
3. Set a reasonable salary and run payroll. The IRS requires a reasonable salary for shareholders who provide services. Use a payroll service, file quarterly Form 941, and prepare a W-2.
4. File Form 1120-S and Form IL-1120-ST every year. The federal deadline is March 15. Illinois adds Schedule K-1-T for each shareholder. Budget for the 1.5% replacement tax.

Every step after the first repeats every year, and every step costs money. Read the cost section above before you elect.

Frequently Asked Questions

Further Reading

External resources: IRC Section 1402 (Self-Employment Tax Definition) · IRC Section 1374 (Built-in Gains Tax) · IRC Section 752 (Partner Basis in Liabilities)