Multiple Businesses Under One LLC
When one LLC with a few DBAs is enough, when it is not, and what each structure does to your tax return.
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Four structures, and what you trade with each
Two questions usually decide this: how different are the risks, and who owns each line? Filing columns assume no corporate election unless noted.
| Structure | Liability between lines | Federal filing | Fits when | Watch for |
|---|---|---|---|---|
| One LLC with several DBAs | No separation. Every line shares one entity and one pool of assets. | A separate Schedule C for each business, and Schedule E for a rental | Related, lower-risk lines with the same owners, or a side line you are still testing | A judgment or lender against one line can reach everything the LLC owns |
| Separate LLCs you own directly | Each LLC is its own legal entity. Protection depends on state law and clean operations. | Same schedules on your Form 1040 if each LLC is disregarded | Different risk levels, different owners, or a line you may sell on its own | More state filings and fees, plus a separate bank account and books for each |
| Holding LLC with LLC subsidiaries | Each subsidiary is separate, and the holding LLC owns the membership interests. | Depends on who owns the holding LLC. See the ownership table below. | Several businesses under common ownership, with units you may add or sell | It does not cure commingling, and each LLC can carry its own state fees |
| Series LLC | A series can wall off its own assets where state law allows and the conditions are met. | Less settled. Federal regulations on series have only been proposed. | Many similar assets in a state with a series statute, set up with counsel | State treatment differs, so test it in every state where a series operates |
DBAs Under One LLC
A second name, not a second company
A DBA (doing business as) lets your LLC operate under another name. An LLC can generally hold more than one. Federal tax law does not set a number, and requirements vary by state, county, and municipality. SBA
A DBA is not a separate entity. Your LLC still signs the contracts, owns the assets, and owes the debts, whichever name is on the invoice. A DBA also does not protect the name by itself, so a brand you care about needs its own trademark check.
Taxes stay simple. The IRS says a name change does not require a new EIN. A sole proprietor who owns multiple businesses does not need a new EIN for that reason either. IRS
Liability Across Business Lines
The real cost of keeping everything together
An LLC shields your personal assets from the company's debts in many situations. It does not shield one business line from another inside the same LLC. If your low-risk consulting line shares an LLC with a construction line, a construction judgment can reach the consulting receivables and cash.
Separate LLCs can fix that, but only if you run them as separate companies. Shared bank accounts, undocumented transfers, and personal guarantees all weaken or bypass the wall. Insurance is often the first line of defense either way.
This part needs a lawyer
Liability protection, charging orders, and veil piercing are state-law questions, and courts do not all treat them the same way. We handle the tax and accounting side. Have a business attorney in your state choose the legal structure and draft the operating agreements.How Each Activity Gets Reported
One LLC can still mean several schedules
With no election, a single-member LLC is disregarded and a multi-member LLC is a partnership. Treas. Reg. 301.7701-3(b)(1) A disregarded LLC's activity goes on Schedule C, E, or F of the owner's Form 1040. IRS
The LLC does not get one blended schedule. The Schedule C instructions say to complete a separate Schedule C for each business you own. IRS Rental real estate income or loss goes on Schedule E. IRS
Books matter too. A business counts as separate for accounting method purposes only if it has a complete and separable set of books and records. Treas. Reg. 1.446-1(d) And a disregarded LLC is still a separate entity for employment tax, so payroll runs under the LLC's own name and EIN. IRS
Not sure how your filing changes by entity? Our LLC tax filing guide walks through each form.
Illustrative example: lumping a rental into Schedule C
A hypothetical single owner has one disregarded LLC with $180,000 of consulting profit and $30,000 of net rental income, and no other earnings. Rentals from real estate are generally excluded from self-employment income, unless you receive them as a real estate dealer. IRC 1402(a)(1)
- SE tax with the activities reported separately ($180,000 on Schedule C)
- $25,433
- SE tax if all $210,000 goes on one Schedule C
- $28,502
- Extra 2026 tax from the reporting error
- $3,069
Uses the 15.3% rate, the 2026 Social Security wage base of $184,500, and the 92.35% net earnings factor. IRS SE tax IRS Topic 554 Ignores income tax and the deduction for half of SE tax. Rounded, and not a client result.
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Holding Companies and LLC Subsidiaries
Yes, an LLC can own an LLC
A holding company here just means a parent LLC that owns the membership interests of the operating LLCs. State law generally allows it. In Delaware, a member is a person, and person includes an LLC. 6 Del. C. 18-101 The parent can usually own an LLC formed in another state, and the subsidiary may need to register where it operates.
The usual reasons are separating risk between units, keeping ownership in one place, and making it easier to sell one unit. The tax result follows the owner count and any elections. A disregarded LLC is treated like a sole proprietorship, branch, or division of its owner. Treas. Reg. 301.7701-2(a)
| Ownership | Federal tax result |
|---|---|
| You own 100% of an LLC, no election | Disregarded. Reported on your Form 1040 on Schedule C, E, or F. |
| You own 100% of a holding LLC, which owns 100% of LLC B | Both are disregarded. Everything lands on your Form 1040, one schedule per activity. |
| A holding LLC with two or more members owns 100% of LLC B | The holding LLC is a partnership by default. LLC B is a division on its Form 1065. |
| A holding LLC owns 60% of LLC C and an outsider owns 40% | LLC C has two members, so it is a partnership with its own Form 1065. |
| An LLC taxed as an S corp owns 100% of LLC B | LLC B stays disregarded and reports as a division on the parent Form 1120-S. No QSub election is involved. |
| An S corp owns 100% of a corporation | The parent can elect QSub status on Form 8869. The election is a deemed liquidation of the subsidiary into the parent. |
| A holding LLC taxed as a partnership wants to own S corp stock | Not allowed. A partnership is not an eligible S corporation shareholder. |
Sources: IRS on single-member LLCs , Form 8869 , IRC 1361(b) .
One planning limit people miss: businesses under common control can be treated as one employer for retirement plan rules, so adding an entity does not automatically give you a separate plan limit. IRC 414(b), (c) For the wider picture, see our entity structure planning hub.
What an S Election Changes
The election covers the whole entity, not one line
If your one LLC elects S corporation status, every line inside it reports on one Form 1120-S. Profit and loss from all the lines pass through to the owners together, with separately stated items kept apart. IRC 1366(a) You cannot elect S status for the consulting line and leave out the rental line.
The entity is also held to S corporation rules as a whole: eligible shareholders and one class of stock. IRC 1361(b)(1) If two partners split one line 60/40 and another line 50/50, a single S corporation is a poor fit, and that alone can justify separate entities.
For a subsidiary, the question is what kind it is. An LLC owned 100% by the S corp and not electing corporate status is a division of the parent automatically. A corporate subsidiary owned 100% by the S corp needs a QSub election on Form 8869, and once that election applies, its assets, liabilities, and income are treated as the parent's. IRS
Before electing, run the numbers line by line with our S corp tax calculator. A profitable service line and a break-even side line can give a very different answer than the blended total.
Rental Property in the Same LLC
The combination investors most often need to rethink
Say you own a consulting business and a rental in one LLC. Three things go wrong at once.
Liability runs both ways. A tenant injury claim can reach the business cash, and a business creditor can reach the property.
The tax character is different. Rental activity is generally passive under IRC 469, with an exception for qualifying real estate professionals. IRC 469(c) A rental can be grouped with a business only in limited cases, such as when one is insubstantial compared with the other. Treas. Reg. 1.469-4(d)(1) So sharing an LLC does not by itself let rental losses offset business income.
An S election can trap the property. When a corporation distributes appreciated property, it recognizes gain as if it sold the property at fair market value. IRC 311(b) Subchapter C rules generally apply to S corporations, and that gain passes through to the shareholders.
Illustrative example: moving a rental out of an S-elected LLC
A hypothetical owner elected S status for an LLC to save payroll tax on consulting profit. The same LLC holds a rental. A lender later wants the rental in its own entity.
- Fair market value of the rental
- $400,000
- Adjusted tax basis
- $250,000
- Gain passed through on the owner's Schedule K-1
- $150,000
The owner reports that gain with no sale proceeds to pay the tax. Character, recapture, and state tax depend on the facts. Hypothetical numbers, not a client result.
That is why many investors keep property outside the operating company from the start, in a separate LLC that leases to the business if needed. It is not always the answer, and a small rental may not justify the cost. For the property side, read our guide to an LLC for rental property, and see the wider real estate investor tax hub.
Series LLCs
A useful tool, with a state-by-state caveat
A series LLC is one company with internal series, each holding its own assets. Availability depends on state law. Delaware and Texas are two states with series statutes. Both condition the liability limit on requirements such as separate records for each series and required language in the formation documents. 6 Del. C. 18-215 Texas bill analysis
The tax side is less settled. Treasury proposed regulations in 2010 that would treat each series as a separate entity for federal classification, and we found no final rule when we checked on the review date. 75 FR 55699 States can go their own way too. California treats each protected series doing business there as a separate LLC, with its own return, annual tax, and fee. California FTB
Do not assume that a series formed in one state gets the same protection in another. Ask counsel to test it in each state where a series will operate, and ask your lender too.
Running more than one business?
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Frequently Asked Questions
Can I have multiple businesses under one LLC?
Yes. One LLC can generally run several lines of business, often under separate DBAs, if its operating agreement and state law allow those activities. The catch is liability: all the lines sit in one legal entity, so a claim against one can reach the assets of the others.
How many DBAs can an LLC have?
Federal tax law does not set a number. A DBA is a registered name, and requirements vary by state, county, and municipality, so check with the office that handles the filing. Each name may carry its own registration and renewal.
Do I need a separate EIN for each DBA?
A name alone does not call for a new EIN, because the IRS says a name change does not require one. The IRS rules turn on the entity. A separate LLC with employees needs its own EIN for employment tax, even if it is disregarded for income tax.
Can an LLC own another LLC?
Yes in general. Delaware, for example, lets any person be a member and defines person to include an LLC. The tax result depends on the number of owners and any elections, and the subsidiary may need to register where it operates.
Can an LLC own an LLC in another state?
Generally yes, since membership interests are not tied to the parent state. The subsidiary follows the law of its formation state and may need to register in any state where it does business. The parent may also face filings there, so confirm with counsel and your CPA.
Do I file a separate tax return for each business under one LLC?
A single-member LLC with no election does not file its own income tax return. You file a separate Schedule C for each business on your Form 1040. A multi-member LLC files one Form 1065, and an LLC taxed as an S corp files one Form 1120-S, with the activities tracked inside it.
Should I put a rental property in the same LLC as my business?
Usually that is the combination worth separating. A claim from either side can reach the other, and an S election can make the property expensive to move out later. Whether separation is worth the added cost is a legal and tax question for your situation.
Does an S election cover every business in the LLC?
Yes. The election applies to the entity, so every line inside it reports on one Form 1120-S. If you want one line taxed as an S corp and another left out, you generally need separate entities.
Is a series LLC the same as a holding company?
No. A holding structure uses separate LLCs that each stand on their own. A series LLC is one company with internal series, available only where state law provides for it, and the protection depends on meeting statutory conditions such as separate records.
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Educational information, not individualized tax or legal advice. State entity law varies and changes, so have counsel in your state confirm the legal structure before you form, merge, or move anything. Examples are hypothetical. Figures and authorities checked October 30, 2026.