Formation

Indiana LLC Operating Agreement: Complete 2026 Guide + Requirements

Indiana counts votes and splits cash by the agreed value of contributions, not by head, and its series statute makes an operating agreement compulsory. This guide covers the IC 23-18 defaults, the four conditions in IC 23-18.1-5-1, and what the document has to say.
Salon owner with a client.
Salon owner with a client.
Executive summary
Indiana LLC operating agreements in 2026
Required by statuteNo for an ordinary LLC. Yes for a series: IC 23-18.1-4-1 says a master LLC must have one
Written or oralThe powers in IC 23-18-4-4 and the override in IC 23-18-4-3 belong to a written agreement
Filed with the stateNo. INBiz has no field for it and the state charges no fee, because it is not a filing
Default votingA majority in interest, meaning more than half of the agreed contribution value
Default money splitBy agreed contribution value under IC 23-18-5-4, not per head
Creditor remedyA charging order giving assignee rights only; IC 23-18-6-7 does not call it exclusive
Last updatedAugust 13, 2026

Why an Indiana Operating Agreement Matters

Business partners reviewing an ownership agreement in a warehouse office.
Indiana counts votes and cash by contribution. The agreement decides whether that is what you meant.

Indiana governs LLCs through the Business Flexibility Act, at Indiana Code article 23-18. The name is accurate. Ind. Code § 23-18-4-5 lets the members enter into an operating agreement to regulate or establish any aspect of the company's affairs or the relations of the members and managers, and the Act supplies a workable default for almost every question, then steps aside wherever the members have agreed otherwise. It never requires an ordinary LLC to adopt an operating agreement.

There is one exception, and it is easy to miss. IC 23-18.1-4-1 states that a master limited liability company must have an operating agreement. If you run a series structure in Indiana, the agreement is not optional, and its contents are load-bearing.

Either way, the document is private. The Secretary of State registers the company through INBiz, keeps the articles of organization, and receives the business entity report. It has no form for an operating agreement, no place to upload one, and no fee attached to one. Nothing about the agreement is ever filed.

Indiana counts by dollars, not by heads

This is the point most summaries get wrong. Under IC 23-18-4-3, a majority in interest of the members must vote, approve or consent. IC 23-18-1-13 defines a majority in interest as the members who have made more than fifty percent of the agreed value of the total contributions made by all members, to the extent those contributions have not been returned.

Voting therefore follows money by default. Distributions work the same way. IC 23-18-5-4 allocates them based on the agreed value of each member's contributions, unless the operating agreement says otherwise.

That default favors a funding member more than the equal-shares rule most neighboring states use. And it punishes a member whose contribution was labor. Take a co-founder who built the business but put in $2,000 against a partner's $200,000. By default, that co-founder holds one percent of the vote and one percent of the cash.

The single-member case in Indiana

A sole owner has no one to negotiate with. That's why the document gets skipped, and why it still matters. An Indiana bank opening a business account asks for something that names the authorized signer. A lender underwriting equipment finance asks who may pledge assets. A buyer running diligence treats a missing agreement as an unpriced risk, and adjusts the offer.

IC 23-18-4-4 makes clear that several useful protections, including modified duties and indemnification, come from a written agreement, not from the Act itself. Background is in the single-member LLC guide and the Indiana single-member LLC page.

What Article 23-18 Decides When You Say Nothing

QuestionIndiana answer with no agreementCitation
Who decidesA majority in interest of the membersIC 23-18-4-3
What a majority in interest meansMore than half the agreed contribution valueIC 23-18-1-13
DistributionsBy agreed contribution valueIC 23-18-5-4
Amending the agreementConsent of all membersIC 23-18-4-3
Manager managementOnly if the articles of organization provide for managersIC 23-18-4-3
Personal creditorCharging order conferring assignee rights onlyIC 23-18-6-7

Why manager management has to be in the articles

IC 23-18-4-3 looks first at the articles of organization, not the operating agreement, to answer the manager question. Suppose an Indiana company decides internally to appoint a manager but never amends its articles. It is still a member-managed company, as far as the statute and any third party are concerned. If the plan is manager management, the change belongs in an amendment to the articles as well as in the agreement.

Contribution value is doing a lot of work

Both the voting default and the distribution default turn on the agreed value of contributions, as stated in the company's records. If those records are thin, informal, or contradicted by an email, the default has nothing solid to work from. Recording contributions and their agreed values isn't bookkeeping tidiness in Indiana. It is the input to two statutory formulas.

Everyone has to agree to change the deal

IC 23-18-4-3 also requires the consent of all members to amend the operating agreement, or to authorize action against it. A minority holder with one percent of the contribution value has no vote on ordinary business, yet holds an absolute veto on amendments. Companies expecting to bring in investors should decide early whether that is the balance they want.

What Belongs in an Indiana Operating Agreement

Indiana operating agreement at a glance

ItemPosition in Indiana
Required by state lawNo for an ordinary LLC, yes for a master LLC with series
FormatWrite it. Several sections give powers only to a written agreement
Filed with the Secretary of StateNo, and no fee, because there is no filing
Governing actIndiana Business Flexibility Act, IC 23-18, with series at IC 23-18.1
File.Business drafting$97 flat

Ten provisions do the heavy lifting in an Indiana company.

1. Members, percentages and the record of both

Name each member and state percentages. Then make sure the company's records reflect the agreed contribution values, since two statutory defaults read them.

2. Contributions, agreed values and later calls

Record cash, property and services at the value the members agreed. State whether more can be demanded, and what dilution follows a refusal.

3. Managers, and the matching articles change

If managers will run the company, the articles of organization must provide for them. The agreement then sets their authority, term, and removal.

4. Vote counting and approval thresholds

Decide whether votes should really follow contribution value. Then set which decisions need a supermajority, and which still need everyone.

5. Allocations and distribution timing

If the intended split differs from contribution value, say so. Add a reserve and a tax distribution sized to the members' pass-through liability.

6. Transfer controls and consent to admission

Set who may transfer, on what notice, and at what price. State what consent turns an assignee into a member with a vote.

7. Admission, exit and the buyout price

Indiana does not price an exit for you. Fix the valuation method, the payment period, and how to treat a member who leaves badly.

8. Dissolution triggers and the payment order

Say what dissolves the company, who winds it up, and how creditors and members get paid. Indiana dissolution covers the filing side.

9. Tax classification and who may change it

Record the federal classification and the consent needed to alter it. The IRS rules for LLCs follow the election, not the INBiz record.

10. Deadlock, disputes and amendment mechanics

Because amendments need unanimity by default, build the deadlock clause and the buy-sell trigger while everyone still agrees.

While you are here

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Series LLCs and the Agreement Indiana Insists On

Indiana puts its series rules in a separate article, IC 23-18.1, rather than inside the main LLC act. The structure works through a master limited liability company that designates series beneath it, and IC 23-18.1-4-1 states in one line that a master limited liability company must have an operating agreement. This is the only situation in this batch of states where the agreement is a legal precondition rather than a recommendation.

IC 23-18.1-5-1 sets the conditions for a series to have liability separate from the master and from every other series. The operating agreement must provide for this, and must establish the series. The series' records must account for its assets separately from the other assets. Notice of the liability limitation must appear in the articles of organization. And the master must file articles of designation for each series that is to have the protection.

All four conditions must hold at the same time. In practice, the record condition is the one that fails: a single bank account, an insurance policy written in the master's name, a lease signed without identifying the series. If you cannot tell which series owns an asset from the records alone, the separation you're relying on does not exist.

What an Indiana Creditor Can Reach

IC 23-18-6-7 is short. A judgment creditor of a member can apply to a court with jurisdiction, which may then charge the member's interest with payment of the unsatisfied judgment. To the extent charged, the creditor has only the rights of an assignee of that interest. The article does not take away a member's benefit of applicable exemption laws.

Notice what's absent. Indiana does not say the charging order is the exclusive remedy, though Kansas, Idaho, Iowa and Maine each say that expressly. Indiana also says nothing about foreclosure. That silence cuts both ways: there's no statutory foreclosure right for a creditor to invoke, and no statutory bar on a creditor arguing for other relief. Indiana LLC owners who assume they hold the strong exclusive-remedy protection sold in some states are relying on something their statute doesn't say.

Whether a sole member is treated differently

IC 23-18-6-7 does not distinguish by member count, so a single-member Indiana LLC gets exactly the same short provision. The practical protection is weaker here: an assignee of the only member's interest is entitled to everything the company distributes, and there's no second member whose vote could withhold distributions. Owners relying on the entity for asset protection should test that assumption honestly, and should keep the company current so nothing else is in dispute, which a certificate of existence demonstrates.

Duties, the Recklessness Standard and Written Modification

IC 23-18-4-2 sets a forgiving liability standard. A member or manager is not liable for acts or omissions in that role, unless the conduct amounts to willful misconduct or recklessness. Real obligations sit alongside it, though. A member or manager must account to the company for any profit from a transaction connected with the company's business, hold confidential and proprietary information in trust for it, and avoid self-dealing without the consent of a majority of the disinterested members or managers.

In a manager-managed company, a member who is not a manager owes no fiduciary duty to the company just by being a member.

Almost all of that is subject to one phrase: "unless otherwise provided in a written operating agreement." That's where the Business Flexibility Act earns its name. Indiana lets the members reallocate duties, expand or narrow indemnification, and change the accounting obligation, provided they do it in writing. IC 23-18-4-4 confirms this by listing what a written operating agreement may do, including modifying duties, providing indemnification, and creating officer positions. An oral understanding does not reach any of it.

Three Indiana Companies and the Default That Applied

Example one: the founder who owned one percent of the vote

Wabash Machine Works LLC, near Lafayette, was formed by an engineer who contributed $3,000 and four years of design work, and an investor who contributed $290,000. They intended an even split of control. With no written agreement, IC 23-18-4-3 gave control to a majority in interest. IC 23-18-1-13 measures that by contribution value, so the investor held roughly 99 percent of the vote. The engineer received roughly one percent of a $180,000 distribution under IC 23-18-5-4, about $1,840 against an expected $90,000. One written clause would have set the split they actually agreed.

Example two: a series structure with one bank account

Monon Rental Holdings LLC, in Indianapolis, registered as a master LLC with five designated series. It filed articles of designation for each, and carried the required notice in its articles. But every rent check went into one account, and the property insurance named only the master. After a $270,000 injury claim arose at one property, the claimant argued the conditions in IC 23-18.1-5-1 had never been satisfied, because no records accounted for that series' assets separately.

The company settled at $190,000. Five accounts and a schedule of assets per series would have cost only a few hundred dollars a year.

Example three: the manager who was never in the articles

A Fort Wayne logistics company appointed an outside manager by written consent of the members, and gave him authority to sign leases. But the articles of organization still said nothing about managers. When a landlord later challenged a disputed twelve-year lease, the company argued the manager had no authority, since IC 23-18-4-3 looks to the articles for the manager question. The dispute turned on a filing that would have taken twenty minutes. Keeping the registered agent and officer details current follows the same logic.

Five Mistakes Indiana LLCs Keep Making

Mistake 1: assuming equal shares because most states do it

Indiana is a contribution-value state for both voting and distributions. A template built around per-head equality gets the math backwards here.

Mistake 2: a sole owner treating it as optional paperwork

The audience is the bank, the lender, the insurer, and the eventual buyer. Written indemnification under IC 23-18-4-4 is also unavailable without it.

Mistake 3: leaving contribution records vague

Two Indiana defaults read the agreed value of contributions from the company's records. Vague records make both defaults unpredictable.

Mistake 4: trying to file the agreement through INBiz

There is no field and no fee. What INBiz does take is the articles of organization, articles of designation for a series, and the biennial business entity report.

Mistake 5: running a series or a manager without the matching filing

Series liability needs notice in the articles and articles of designation. Manager management needs the articles too. Internal paperwork alone does not reach third parties, and the same discipline applies to assumed business names.

What Happens When the Business Flexibility Act Decides

Indiana charges no penalty for lacking an operating agreement, and the Secretary of State never asks for one. Every cost here is private. Each figure below is the price of a dispute, not a fine.

The Lafayette founder lost roughly $88,000 of an expected distribution in one year, plus control of his own company, to a default he didn't know existed. The Indianapolis series settlement cost $190,000 for a record-keeping condition the statute states in a single sentence. The Fort Wayne lease argument turned on a filing that costs a fraction of the legal fees spent debating it.

If these reach court, add ordinary commercial litigation costs. A contested claim among Indiana members that reaches discovery and a valuation fight commonly exceeds $75,000 per side in fees. Each side also generally needs its own business appraisal, which for a small operating company runs roughly $10,000 to $25,000.

Quieter costs land first. A bank refuses the account, because nobody can prove who signs. A lender declines or discounts. A buyer holds back part of the price. And a company preoccupied with an internal fight misses its biennial report, and pays for reinstatement.

How File.Business Drafts Indiana Operating Agreements

We draft to IC 23-18, and where a series is involved, to IC 23-18.1 as well. The intake covers members, percentages and the contribution values that two Indiana defaults depend on; management structure with the matching articles language; voting thresholds; buyout terms; transfer controls; written duty and indemnification provisions under IC 23-18-4-4; and the federal tax election.

Series clients get the agreement, the articles notice, and the articles of designation treated as one package, not three separate errands. Companies trading in other states get the agreement aligned with their foreign qualification. Changes that belong on the public record go through agent changes and article amendments.

Templates against drafted agreements

A template works for a one-member consultancy with a single account. It fails an Indiana company with unequal contributions, a manager, a series, or an exit. That's because the Indiana defaults it needs to displace are not the ones a national form expects. General principles are in operating agreement essentials.

Indiana Operating Agreement FAQ

Does Indiana require an LLC to have an operating agreement?

Not for an ordinary LLC. The Business Flexibility Act supplies defaults instead. There is one exception: IC 23-18.1-4-1 provides that a master limited liability company, the vehicle used for series in Indiana, must have an operating agreement.

Does an Indiana operating agreement have to be in writing?

For the provisions that matter most, yes, in practice. IC 23-18-4-3 defers to a written operating agreement. IC 23-18-4-4 lists the things only a written operating agreement may do, including modifying duties, providing indemnification, and creating officer positions.

Is the operating agreement filed with the Indiana Secretary of State?

No. INBiz has no field for it, and no fee attaches to it, because it is an internal contract. The public filings are the articles of organization, any articles of designation for a series, and the biennial business entity report.

How does Indiana split profits with no agreement in place?

By contribution value. IC 23-18-5-4 allocates distributions based on the agreed value, as stated in the company's records, of the contributions each member made, to the extent received and not previously returned. It is not an equal-shares state.

What is a majority in interest of the members in Indiana?

IC 23-18-1-13 defines it as the members who have made more than fifty percent of the agreed value of the total contributions made by all members, to the extent those contributions have not been returned. Voting under IC 23-18-4-3 follows that measure by default.

What does an Indiana series LLC have to do to keep each series separate?

Four conditions in IC 23-18.1-5-1 must all hold: the operating agreement must provide for the limitation and establish the series; the records must account for that series' assets separately; the articles of organization must carry notice of the limitation; and articles of designation must be filed for the series.

Can File.Business draft an Indiana operating agreement?

Yes, at $97 flat, whether with a new formation or for an existing company. The draft records contribution values that two Indiana defaults depend on, sets voting and distribution terms, adds buyout and transfer provisions, and handles series documentation where the structure calls for it.

Need a custom Indiana Operating Agreement?

File.Business drafts Indiana-specific Operating Agreements at $97 flat: customized for single-member or multi-member structure, ownership percentages, capital contributions, tax election preferences, and management structure. Includes member-signature template and document-vault storage.

Create your Indiana operating agreement → Contract Templates Form an LLC

Doing this in Indiana specifically: Indiana operating agreement covers the clause list, the IC 23-18 defaults each clause replaces and the series documentation where it applies. Nothing is filed through INBiz and no state fee is payable for the agreement.

Authoritative sources

This guide is written from the official sources below. Fees, forms, and deadlines change. Confirm the current requirement with the agency before you file.

Disclosure. File.Business is a private filing service. It is not a government agency and not a law firm. We prepare and submit filings at your direction. Nothing on this page is legal or tax advice. Filing fees, deadlines and statutory references are current as of the last-updated date shown above, and they can change. Confirm current requirements with the relevant state agency before you file.

O
Written by

Orhan A. Mutlu

CTO and executive tax preparer at Troy Accounting, and the person who runs the state-filing operation behind File.Business: formation, registered agent, annual reports, amendments, reinstatement and dissolution across all 51 US jurisdictions. Founder of Global Opportunity Foundation, a 501(c)(3). Every fee in these guides is checked against the issuing agency's own published schedule. Corrections: [email protected]

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