Yes, an LLP can have a subsidiary. Under the Revised Uniform Partnership Act, an LLP is a separate legal entity that can own property, enter contracts, and hold ownership interests in other businesses. This means an LLP can form or acquire an LLC, a corporation, or even another partnership as a subsidiary. The key factor is whether the LLP holds a controlling interest — usually more than 50% — in the other entity.
About two million U.S. corporations and partnerships are connected through roughly 15 million owner-subsidiary links across the American economy. Many of these structures involve pass-through entities like LLPs that serve as parent entities over one or more subsidiaries. Getting this structure right affects everything from liability protection to tax obligations to regulatory compliance.
Here’s what you’ll learn in this article:
- 🏛️ How federal and state laws allow an LLP to own and control subsidiary businesses
- 💼 The specific types of subsidiaries an LLP can create — LLCs, corporations, and other partnerships
- 🛡️ How a parent-subsidiary structure shields your LLP from the liabilities of each subsidiary
- 📊 The tax consequences of layering a subsidiary under a pass-through entity like an LLP
- ⚠️ The most common mistakes LLP owners make when forming subsidiaries and how to avoid them
What Exactly Is an LLP Under U.S. Law?
A Limited Liability Partnership is a partnership where each partner receives protection from the debts and negligence of the other partners. Unlike a general partnership, where every partner is personally on the hook for everything the business owes, an LLP puts a legal shield between each partner and the mistakes or obligations of their co-partners.
Under the Revised Uniform Partnership Act (RUPA), a partnership — including an LLP — is treated as its own legal entity. This is a critical distinction. It means the LLP itself, not the individual partners, owns the partnership’s property, signs contracts, and holds assets.
This entity treatment is the legal foundation that allows an LLP to own a subsidiary. Because the LLP is recognized as a separate “person” in the eyes of the law, it can hold membership interests in an LLC or shares in a corporation just like any other legal entity could. Without this entity status, an LLP would have no legal standing to act as a parent company.
Every state that authorizes LLPs has its own version of these rules, but the core concept remains the same across the country. The LLP files a statement of qualification with the state, and once approved, the partnership gains limited liability status and full entity powers.
What Makes a Business a “Subsidiary”?
A subsidiary is a business that another entity controls. That control usually comes from owning more than 50% of the voting power or membership interest in the subsidiary. The entity that holds that controlling interest is called the parent company or holding company.
The subsidiary remains its own separate legal entity. It has its own name, its own bank accounts, its own tax filings, and its own legal obligations. The parent does not merge with the subsidiary — it simply owns enough of it to make the key decisions about how the subsidiary operates.
When an LLP owns a controlling stake in another business, that business becomes the LLP’s subsidiary. The LLP partners indirectly control the subsidiary through the LLP’s ownership interest. This creates a layered structure where the LLP sits on top and the subsidiary operates below it.
A wholly owned subsidiary is one where the parent owns 100% of the subsidiary’s outstanding shares or membership interest. This gives the parent entity total control over the subsidiary’s operations, governance, and finances.
How Federal Law Allows LLPs to Own Subsidiaries
No federal statute prohibits an LLP from owning a subsidiary. The legal authority comes from the combination of RUPA’s entity treatment and each state’s LLP statute. Because RUPA treats an LLP as a legal entity separate from its partners, the LLP can hold property — and ownership interests in other businesses count as property.
The IRS does not treat the creation of a subsidiary as a taxable event by itself. What matters to the IRS is how the subsidiary is classified for tax purposes. If the LLP forms an LLC subsidiary with a single member (the LLP itself), the IRS will treat that subsidiary as a disregarded entity by default. This means the subsidiary’s income flows directly onto the LLP’s tax return as if the subsidiary did not exist.
If the subsidiary has multiple members, the IRS treats it as a partnership by default, which requires it to file its own Form 1065 and issue K-1s to each member. If the LLP forms a corporate subsidiary, that corporation files its own tax return and pays its own corporate income tax.
The IRS also imposes one important restriction that affects LLP-subsidiary structures. An S Corporation can only be owned by individuals, certain trusts, and estates — not by partnerships or LLPs. This means an LLP cannot own shares in an S Corp. If an LLP wants a corporate subsidiary, that subsidiary must be a C Corporation.
Types of Subsidiaries an LLP Can Own
An LLP has several options when choosing what kind of subsidiary to form. Each entity type brings different advantages for liability, taxation, governance, and regulatory compliance.
| Subsidiary Type | Key Feature for LLP Owners |
|---|---|
| Single-member LLC | Treated as a disregarded entity; income flows directly to the LLP’s return |
| Multi-member LLC | Treated as a partnership; files its own Form 1065 |
| C Corporation | Separate taxpayer; pays corporate income tax on its own profits |
| S Corporation | Not available — LLPs cannot own S Corp shares |
| Another LLP or LP | Allowed in most states; creates a multi-layered partnership structure |
LLC Subsidiary
The most common subsidiary for an LLP is an LLC. When the LLP is the sole member of the LLC, the IRS ignores the LLC for tax purposes. All income and deductions from the subsidiary pass through to the parent LLP and then to the individual partners. This creates a clean, single layer of taxation.
The LLC subsidiary also provides an extra layer of liability protection. If the subsidiary gets sued or takes on debt, the LLP’s other assets are generally protected. The LLC’s obligations stay with the LLC, and the LLP’s risk is limited to the amount it invested in that subsidiary.
C Corporation Subsidiary
An LLP can form or acquire a C Corporation as a subsidiary. This is common when the LLP wants to raise capital from outside investors, issue stock options to employees, or operate in an industry that requires a corporate structure.
The trade-off is double taxation. The C Corp pays corporate income tax on its profits, and when those profits are distributed to the LLP as dividends, the LLP’s partners pay tax again on that income. Despite this cost, a C Corp subsidiary gives the LLP access to corporate-level benefits like stock issuance and easier access to venture capital.
Another LLP or Limited Partnership
An LLP can also own a controlling interest in another LLP or a limited partnership (LP). This creates a layered partnership structure where income passes through multiple levels before reaching the individual partners. Each layer files its own partnership return, and the income ultimately lands on each partner’s personal tax return.
This structure can become complex. Each partnership in the chain must track its own allocations, maintain its own books, and file its own Form 1065 with the IRS. Partners in the top-level LLP may not see their K-1 forms until every subsidiary partnership has completed its filings.
State-by-State Rules That Affect LLP Subsidiaries
While no state outright bans an LLP from owning a subsidiary, each state has its own LLP statute with different requirements. These differences can affect how the subsidiary is formed, taxed, and regulated.
Delaware
Delaware is one of the most popular states for forming business entities. The Delaware Limited Liability Company Act (DLLCA) gives LLCs enormous flexibility in how they structure ownership and governance. An LLP that forms a subsidiary LLC in Delaware benefits from the state’s freedom of contract principle, which allows the operating agreement to override many default rules.
Delaware does not impose an entity-level income tax on LLCs unless the LLC has elected to be taxed as a corporation. LLC members — including an LLP parent — are subject to Delaware personal income tax with a highest marginal rate of 6.6%. Delaware also enacted significant reforms to its corporate law in 2025 through Senate Bill 21, which may influence how entities structure subsidiaries going forward.
Texas
Texas uses the Texas Business Organizations Code (TBOC) to govern all business entities, including LLPs and their subsidiaries. The TBOC requires that an LLC’s name be distinguishable from any existing entity registered in Texas.
Texas does not have a personal income tax, which makes it attractive for pass-through structures. However, Texas imposes a franchise tax (also called a margin tax) on most business entities, including LLCs. An LLP that forms a subsidiary LLC in Texas should plan for this entity-level tax, which applies to the subsidiary’s revenue.
In 2025, Texas overhauled its business entity laws to compete more directly with Delaware for corporate registrations. These changes may create new advantages for LLPs structuring subsidiaries in Texas.
California
California requires every LLC doing business in the state to pay an annual minimum franchise tax of $800, regardless of whether the LLC earns any income. An LLP that forms multiple LLC subsidiaries in California will owe this fee for each subsidiary, which can add up fast.
California also imposes an LLC fee on entities with total income above $250,000, on a sliding scale. This makes California one of the most expensive states for maintaining subsidiary LLCs. An LLP with a subsidiary earning $5 million or more in California owes an additional $11,790 per year on top of the $800 minimum tax.
New York
New York requires LLCs to publish a notice of formation in two newspapers for six consecutive weeks. This publication requirement applies to every LLC subsidiary formed in the state and can cost anywhere from a few hundred dollars in upstate counties to over $1,000 in New York City.
New York also imposes an annual filing fee on LLCs based on the New York-source gross income of the LLC. For an LLP parent with a high-revenue subsidiary in New York, these fees can become a meaningful annual expense.
Three Real-World Scenarios: LLP Creates a Subsidiary
Scenario 1: The Law Firm That Expands Into Consulting
Maria is a partner in a five-person law firm structured as an LLP in Texas. The firm wants to launch a management consulting practice, but the partners are worried that a bad consulting engagement could put the law firm’s assets at risk.
| Decision | Result |
|---|---|
| LLP forms a new LLC subsidiary for consulting services | Consulting liabilities stay with the LLC; law firm assets are protected |
| LLP is the sole member of the consulting LLC | IRS treats the LLC as a disregarded entity; income flows to the LLP’s return |
| Each entity maintains separate bank accounts and contracts | Partners maintain the corporate veil between the two businesses |
Maria’s LLP now operates the law practice directly while the consulting work runs through the subsidiary. If a consulting client sues, the claim targets the LLC — not the law firm’s assets.
Scenario 2: The Accounting LLP That Acquires a Software Company
James and his partners run a mid-size accounting LLP in Delaware. They want to acquire a small tax software company to offer proprietary tools to their clients.
| Decision | Result |
|---|---|
| LLP purchases 100% of the software company’s shares (C Corp) | Software company becomes a wholly owned C Corp subsidiary |
| C Corp files its own tax return and pays corporate income tax | Dividends to the LLP are taxed again at the partner level (double taxation) |
| LLP keeps the software company’s existing corporate structure | Easier to attract outside investors or issue stock options to developers |
James’s LLP chose a C Corp subsidiary because the software company needed to retain earnings and recruit engineers with equity compensation. The double taxation is a cost, but it gives the subsidiary the tools it needs to grow.
Scenario 3: The Real Estate LLP That Creates Multiple Property LLCs
Linda and her two partners run a real estate investment LLP in California. They buy commercial properties and want to isolate the liability of each building.
| Decision | Result |
|---|---|
| LLP forms a separate single-member LLC for each property | A lawsuit on one property cannot reach the others |
| Each LLC is a disregarded entity for tax purposes | All rental income flows through to the LLP and then to partners |
| Each LLC pays California’s $800 annual minimum franchise tax | Five properties mean $4,000 per year in state fees before earning a dime |
Linda’s structure maximizes liability protection but carries a real cost in California. Every new property means a new LLC, a new franchise tax payment, and a new set of books to maintain.
Tax Consequences of Layering a Subsidiary Under an LLP
The tax impact depends almost entirely on what type of subsidiary the LLP chooses. The default tax treatment differs dramatically between an LLC subsidiary and a corporate subsidiary.
An LLP is already a pass-through entity for tax purposes. Profits and losses flow through to each partner’s personal tax return, and the LLP itself does not pay income tax at the entity level. When the LLP adds a subsidiary, the question becomes whether that subsidiary adds another layer of tax or keeps the pass-through benefit intact.
Single-member LLC subsidiary: The IRS ignores the LLC entirely. All of the subsidiary’s income, deductions, and credits appear on the LLP’s partnership return. Partners report their share on their individual returns. There is no additional layer of tax.
Multi-member LLC subsidiary: The IRS treats this as a partnership. The subsidiary files its own Form 1065 and issues K-1 forms to each member, including the parent LLP. The LLP then allocates that income to its partners on their K-1s. There is still no entity-level tax, but the filing requirements increase.
C Corporation subsidiary: The subsidiary pays its own corporate income tax (currently 21% at the federal level). When the C Corp distributes dividends to the LLP, the partners pay tax again on that income. This double taxation is the biggest tax drawback of using a C Corp subsidiary under an LLP.
Partners in an LLP are considered self-employed and must pay self-employment taxes on their share of the LLP’s income. When the LLP owns a pass-through subsidiary, the subsidiary’s income that flows up to the LLP may also be subject to self-employment tax, depending on the partner’s level of involvement.
Some states impose additional entity-level taxes on pass-through entities. Texas charges a franchise tax on LLCs and partnerships, while California levies its annual franchise tax and LLC fee. These state-level costs can erode the tax benefits of a pass-through subsidiary structure.
| Subsidiary Type | Federal Tax Treatment |
|---|---|
| Single-member LLC | Disregarded entity — no separate return; income flows to LLP |
| Multi-member LLC | Files Form 1065; issues K-1s; income flows to LLP and then to partners |
| C Corporation | Pays 21% corporate tax; dividends taxed again at the partner level |
| S Corporation | Not available — LLPs cannot be S Corp shareholders |
Pros and Cons of an LLP Having a Subsidiary
| Pros | Cons |
|---|---|
| Liability isolation — a lawsuit against the subsidiary does not reach the LLP’s core assets | Added cost — each subsidiary requires its own formation fees, registered agent, and state filings |
| Tax flexibility — an LLC subsidiary preserves pass-through taxation | Administrative burden — separate books, bank accounts, and tax returns for each entity |
| Business separation — different ventures operate under distinct legal entities | State fees — states like California charge $800+ per LLC per year regardless of revenue |
| Easier fundraising — a C Corp subsidiary can issue stock and attract investors | Double taxation — a C Corp subsidiary creates two layers of income tax |
| Asset protection — valuable property or IP can be held in a separate subsidiary | Complexity — multi-layered structures make accounting and compliance harder |
| Scalability — add new subsidiaries as the business grows without restructuring the LLP | Veil piercing risk — if entities are not kept separate, courts can ignore the subsidiary structure |
Do’s and Don’ts for LLP Subsidiary Structures
Do’s:
- Do maintain separate bank accounts for the LLP and each subsidiary — commingling funds is the fastest way to lose liability protection
- Do draft a distinct operating agreement for each subsidiary LLC that names the LLP as the member and spells out governance rules
- Do file all required annual reports and pay all state fees for each subsidiary to keep them in good standing
- Do keep separate financial records, contracts, and tax filings for every entity in the structure
- Do consult a tax professional before choosing between an LLC subsidiary and a C Corp subsidiary — the tax difference is significant
Don’ts:
- Don’t treat the subsidiary’s money as the LLP’s money — this destroys the legal separation between them
- Don’t forget to register the subsidiary in every state where it does business — failing to qualify as a foreign entity can result in fines and loss of court access
- Don’t use the same registered agent address as a substitute for maintaining actual operational separation
- Don’t assume one operating agreement covers the whole structure — each entity needs its own governing documents
- Don’t try to make an LLP a shareholder of an S Corporation — the IRS does not allow it and the S Corp election will be terminated
Mistakes That Can Cost LLP Owners Big
Commingling Funds Between the LLP and Subsidiary
The number one mistake is mixing the LLP’s money with the subsidiary’s money. When an LLP deposits subsidiary revenue into its own bank account — or pays subsidiary bills from the LLP’s account — it creates a legal argument that the two entities are not truly separate. A court can use this to pierce the corporate veil, which means the liability protection between the entities disappears.
The fix is simple: every entity gets its own bank account, its own credit card, and its own bookkeeping. No exceptions.
Failing to Maintain Separate Records
An LLP that treats its subsidiary like an internal department — rather than a separate legal entity — risks losing the liability shield. Each subsidiary must have its own operating agreement, financial records, and meeting minutes (if it’s a corporation). The subsidiary should sign its own contracts under its own name.
If a creditor can show that the subsidiary has no independent existence, the court may hold the LLP responsible for the subsidiary’s obligations.
Choosing the Wrong Entity Type for the Subsidiary
Picking a C Corporation when an LLC would work better — or vice versa — creates unnecessary tax costs or misses important structural benefits. An LLP that forms a C Corp subsidiary when it only needs basic liability isolation will pay double tax on every dollar of profit. An LLP that forms an LLC subsidiary when it needs to raise equity capital from venture investors may find that investors refuse to invest in a pass-through entity.
The choice should be driven by how the subsidiary will operate, how it will be funded, and what the partners’ exit strategy looks like.
Ignoring State-Specific Requirements
Each state has its own rules for forming and maintaining subsidiaries. An LLP that forms an LLC subsidiary in New York but skips the newspaper publication requirement will face penalties. An LLP that forms multiple LLC subsidiaries in California without budgeting for the $800 per entity annual fee will get an unwelcome surprise.
Not Updating the LLP Agreement
When an LLP forms a subsidiary, the LLP partnership agreement should be updated to address the subsidiary. This includes who has authority to manage the subsidiary, how profits from the subsidiary will be allocated among partners, and what happens to the subsidiary if the LLP dissolves. Failing to address these issues in the partnership agreement can lead to disputes among partners.
How to Form a Subsidiary Under an LLP: Step by Step
Forming a subsidiary under an LLP follows a structured process. While the details vary by state and entity type, the core steps apply across the board.
Step 1: Review the LLP Partnership Agreement. Check whether the existing partnership agreement gives the LLP authority to form or acquire subsidiaries. If it does not, the partners need to amend the agreement to grant that authority. Most well-drafted LLP agreements already include broad language about the partnership’s power to own other entities.
Step 2: Choose the Subsidiary’s Entity Type. Decide whether the subsidiary will be an LLC, a C Corporation, or another partnership. This decision should be based on the subsidiary’s purpose, the desired tax treatment, the need for outside investment, and the level of liability protection required.
Step 3: Pick a Name and Check Availability. The subsidiary needs its own unique name that meets the naming requirements of the state where it will be formed. Run a name search on the Secretary of State website to confirm the name is available.
Step 4: File Formation Documents. For an LLC subsidiary, file Articles of Organization with the state. For a corporate subsidiary, file Articles of Incorporation. The formation documents should list the LLP as the member or sole shareholder.
Step 5: Draft the Subsidiary’s Governing Documents. Create an operating agreement (for an LLC) or bylaws (for a corporation). These documents should clearly state that the LLP is the owner, describe the governance structure, and outline how decisions will be made.
Step 6: Obtain an EIN. The subsidiary needs its own Employer Identification Number from the IRS, even if it has no employees. This number is used for tax filings, bank accounts, and regulatory filings.
Step 7: Open a Separate Bank Account. The subsidiary must have its own bank account from day one. This is not optional — it is the foundation of maintaining legal separation between the LLP and the subsidiary.
Step 8: Register in Other States If Needed. If the subsidiary will do business in states other than where it was formed, it must register as a foreign entity in each of those states. This usually involves filing an application for authority and paying a registration fee.
Step 9: Get Required Licenses and Permits. Depending on the subsidiary’s industry and location, it may need business licenses, professional permits, or industry-specific approvals before it can begin operations.
How Series LLCs Offer an Alternative Structure
Some states offer a special entity called a Series LLC that provides an alternative to forming multiple separate subsidiary LLCs. A Series LLC allows a single LLC to create multiple internal “series,” each with its own assets, members, and liabilities. Each series functions like a separate subsidiary, but all series exist under one LLC filing.
The advantage is cost savings. Instead of forming five separate LLCs (with five separate filing fees, five separate registered agents, and five separate annual reports), the LLP can form one Series LLC and create five internal series. Each series is protected from the liabilities of the other series.
The disadvantage is limited recognition. Not all states authorize Series LLCs, and there is uncertainty about whether a series created in one state will be respected in another state. If the subsidiary will operate in multiple states, a traditional subsidiary LLC may be the safer choice.
States that currently authorize Series LLCs include Delaware, Texas, Illinois, Nevada, and several others. California does not authorize the formation of domestic Series LLCs, though it may recognize foreign Series LLCs that register in the state.
Key Entities and Organizations Involved
Several entities and organizations play a role when an LLP forms a subsidiary:
- The IRS determines how the subsidiary is taxed. Its classification rules (disregarded entity, partnership, or corporation) drive the entire tax structure.
- The Secretary of State in each relevant state processes formation filings, maintains records, and enforces naming and registration requirements.
- The Uniform Law Commission drafted RUPA, which provides the baseline rules for how partnerships (including LLPs) operate as legal entities across the country.
- State legislatures in Delaware, Texas, California, New York, and every other state set their own LLP and LLC statutes, fees, and regulatory requirements.
- The partners of the LLP must approve the formation of a subsidiary (usually through a vote or written consent) and update the partnership agreement to reflect the new structure.
When an LLP Should Not Form a Subsidiary
Not every LLP needs a subsidiary. Forming one adds cost, complexity, and administrative work. If the LLP only operates a single line of business with modest risk, a subsidiary may create more headaches than protection.
An LLP should think twice about a subsidiary when:
- The new business activity carries low liability risk and does not justify the cost of a separate entity
- The partners do not have the resources to maintain separate books, accounts, and filings for another entity
- The LLP operates in a state like California where each subsidiary triggers a minimum $800 annual fee
- The partners plan to dissolve the LLP in the near future, making a new entity unnecessary
An LLP should form a subsidiary when it enters a new line of business with different risks, acquires another company, needs to isolate high-value assets, or wants to attract outside investors through a corporate structure.
FAQs
Can an LLP own 100% of an LLC?
Yes. An LLP can be the sole member of an LLC, making it a wholly owned subsidiary. The IRS treats that LLC as a disregarded entity for tax purposes.
Can an LLP own shares in a corporation?
Yes. An LLP can own shares in a C Corporation. It cannot own shares in an S Corporation because the IRS only allows individuals as S Corp shareholders.
Does forming a subsidiary protect the LLP from lawsuits?
Yes. A properly maintained subsidiary keeps its own liabilities separate. If the subsidiary is sued, the LLP’s assets are generally not at risk.
Can an LLP be a subsidiary of another company?
Yes. Another entity — like a corporation or LLC — can hold a controlling interest in an LLP, making the LLP the subsidiary in that relationship.
Do all states allow LLPs to form subsidiaries?
Yes. Every state that authorizes LLPs treats them as separate legal entities with the power to own property and hold interests in other businesses.
Does a subsidiary need its own EIN?
Yes. The IRS requires every separate business entity to have its own Employer Identification Number, even if it shares ownership with the parent LLP.
Can an LLP form a subsidiary in a different state?
Yes. An LLP can form a subsidiary in any state. The subsidiary must comply with the formation and registration rules of the state where it is created.
Is a subsidiary LLC taxed separately from the LLP?
No. A single-member LLC subsidiary is a disregarded entity. Its income passes through to the LLP’s tax return and then to the partners’ personal returns.
Can an LLP convert a subsidiary into a different entity type?
Yes. Most states allow entity conversions. An LLP can convert a subsidiary LLC into a corporation, or vice versa, by filing the required documents with the state.
Does an LLP need partner approval to form a subsidiary?
Yes. Most LLP agreements require a vote or written consent from the partners before the LLP can form or acquire a new entity.
Related reading
- Can an LLC Really Own Another LLC? – Yes, But Avoid This Mistake + FAQs
- Is a Subsidiary Company a Separate Legal Entity? (w/Examples) + FAQs
- Are Joint Ventures Considered Subsidiaries? (w/Examples) + FAQs
- Can a Joint Venture Be a Subsidiary? (w/Examples) + FAQs
- Can an LLC Have a Subsidiary? (w/Examples) + FAQs
- How Do Subsidiary Companies Work? (w/Examples) + FAQs
- Can a C Corporation Be a Shareholder in an S Corp? (w/Examples) + FAQs