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

Justin Abdilla, Esq.

Managing Attorney, Abdilla & Associates

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.

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 the IRS charges $220 per month per shareholder in late filing penalties.

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

Illinois requires workers' compensation insurance for employers. S-Corp shareholders who receive W-2 wages are employees of the corporation. Officers holding less than 7.5% of stock cannot opt out under 820 ILCS 305/1(a)(4). For a single-shareholder S-Corp, you may qualify for the officer exclusion, but many insurance carriers require coverage regardless. 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.

On $75,000 in net income, the replacement tax is $1,125 per year. That 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

If you convert an existing LLC to an S-Corp and the LLC holds appreciated property, any sale of that property within five years triggers the built-in gains tax under IRC Section 1374. The S-Corp pays a corporate-level tax on the built-in gain, and you also pay tax on the distribution. Double taxation on property that would have been taxed once in the LLC. 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.

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)