Register an Indiana Limited Liability Partnership (LLP) the Straightforward Way

A limited liability partnership is a general partnership that has taken one extra legal step: it has registered with the state to obtain a liability shield for its partners. In a plain general partnership, every partner is personally responsible for the debts and wrongful acts of the business — and, critically, for the wrongful acts of the other partners. The LLP form removes that last piece. Once your partnership is registered as an Indiana LLP, a partner is generally not personally liable for the negligence, malpractice, or misconduct of another partner, or for obligations of the partnership itself, simply because of their status as a partner.

That distinction is why the LLP is the default structure for licensed professional groups. Law firms, accounting practices, medical and dental groups, architecture and engineering firms, and financial advisory partnerships gravitate to the LLP because each partner wants to be protected from a colleague's mistake. A CPA who did nothing wrong should not lose personal assets because a partner three offices away botched an audit. The LLP delivers exactly that protection while keeping the flexible, partner-run character that professionals prefer over the rigid formalities of a corporation.

How the LLP differs from an LLC

People often conflate the two, but they are separate entity types under separate parts of Indiana law. An LLC is owned by members and formed by filing Articles of Organization. An LLP starts life as a general partnership and becomes an LLP by filing a Statement of Qualification (sometimes called a registration as a limited liability partnership) with the Secretary of State. The partners continue to run the business directly, governed by their partnership agreement, and the partnership's underlying character carries over — the LLP is essentially a general partnership wearing a liability shield.

Governance stays in the partners' hands

There are no mandatory managers, no board of directors, and no required annual meetings baked into the LLP form. The partners decide how the business runs, and they write those decisions down in a partnership agreement. Indiana's partnership statutes fill any gaps you leave, but the agreement is where the real governance lives — profit splits, voting, admitting new partners, and what happens when someone leaves.

If two or more people are already carrying on a business for profit together, Indiana law treats them as a general partnership whether they signed anything or not. That default status is convenient but dangerous: it exposes each partner to unlimited personal liability, including liability for what the other partners do. Registering as an LLP is the deliberate act that fixes this.

The liability shield is the whole point

In a general partnership, a creditor or a plaintiff who wins a judgment against the partnership can pursue the personal assets of any partner. In a registered LLP, the partners are shielded — the claim generally reaches the partnership's assets and the assets of a partner who is personally at fault, but not the innocent partners' homes, savings, or personal property. This is the same functional protection that a corporation or LLC gives its owners, adapted to the partnership form.

What the shield does not cover

No liability shield is absolute. A partner remains personally responsible for their own negligence or wrongful conduct — the LLP protects you from your partners' mistakes, not from your own. A partner who personally guarantees a lease or a business loan is personally on the hook for that specific obligation. And in the professional context, the shield does not override malpractice liability for the individual who committed the malpractice, nor does it substitute for the professional liability insurance that Indiana licensing boards may require. Treated properly — with the partnership's finances kept separate and contracts signed in the LLP's name — the shield is durable and reliable.

Pass-through taxation

An LLP is a partnership for federal tax purposes. It does not pay income tax at the entity level; instead, profits and losses pass through to the partners, who report their share on their personal returns via a Schedule K-1 issued from the partnership's Form 1065. Indiana does not tax the partnership itself on its income, though the partnership does file an information return and partners account for Indiana-source income on their own returns. This pass-through treatment avoids the double taxation that hits C-corporations and is one reason partnerships stay partnerships rather than incorporating.

Indiana runs business filings through INBiz, the state's one-stop online portal operated by the Secretary of State's Business Services Division. To become an LLP, an existing or newly formed general partnership files a Statement of Qualification (the registration as a limited liability partnership) through INBiz. The filing is short and does not require you to disclose the partnership's internal financial arrangements.

What the registration captures

• Partnership name: The official name of the LLP, which must include a required designator such as "Limited Liability Partnership," "LLP," or "L.L.P."
• Principal office address: The main business address of the partnership. A physical street address is expected; a P.O. box alone is not sufficient for the registered agent.
• Registered agent: A person or business with a physical Indiana street address, available during business hours to receive legal process and state notices on the partnership's behalf.
• Statement of business: A brief description confirming the partnership is registering for LLP status.

Processing and confirmation

INBiz filings are fast — Indiana typically processes online registrations in about one business day, and often the same day. Once processed, the LLP appears in the state's business search and your filed confirmation is available. Paper filings by mail take substantially longer, usually several business days, which is why nearly everyone files online.

Registering the LLP is a one-time act. Keeping it in good standing is an ongoing commitment, and Indiana has one wrinkle that trips people up: the report cycle is biennial, not annual.

The Business Entity Report

Indiana LLPs file a Business Entity Report with the Secretary of State every two years, not every year, through INBiz. The report confirms your registered agent and address information and keeps the entity active. Because it comes around only every other year, it is easy to forget — set a reminder or use a service that tracks it for you, because letting it lapse eventually leads to administrative dissolution.

Registered agent maintenance

Your registered agent must remain continuously available at an Indiana street address. If the agent moves, resigns, or stops being reachable, you must update the record. An LLP with a stale or invalid agent address is technically out of compliance even if its report is current.

Partnership agreement and licensing

Indiana does not require you to file a partnership agreement — it stays private — but every LLP should have one, and professional LLPs must also maintain whatever licensure and professional liability coverage their Indiana licensing board requires. These obligations run in parallel with the state filing and are the partners' responsibility to track.

Mainstay Filing prepares and submits the LLP registration so you are not left to interpret the INBiz interface, guess at what the Statement of Qualification needs, or wonder whether you have satisfied every state requirement. You give us the partnership's name, its address, and your choice of registered agent; we prepare the registration, file it through INBiz, and return the confirmed documents once the state processes them.

We include registered agent service, so a professional Indiana address sits in the public record instead of a partner's home, and someone is always available during business hours to receive service of process and state mail. Because Indiana's report is biennial and easy to miss, we track the deadline and can file the Business Entity Report for you when it comes due.

What we don't do

What we offer is a filing service — we are neither a law firm nor a firm of accountants. We do not draft your partnership agreement's economic terms, advise on how partners should split profits or equity, or provide tax or legal opinions. For those decisions — especially for a professional practice — you want a business attorney and a CPA. What we handle is the state-facing paperwork, done correctly and on time, so the partners can focus on the practice itself.