To start a business with friends, file a limited liability company with your state, get a federal tax ID from the IRS, and sign an operating agreement that spells out ownership, decision-making, and what happens when someone leaves. The filing takes days. The agreement is where the friendship either survives the business or doesn’t.
Why an LLC Beats Doing Nothing
If you and your friends start operating without filing anything, the law treats you as a general partnership by default. Every partner is personally on the hook for the business’s debts and for anything another partner does in the course of business. A creditor can go after your personal savings, your car, your house. Nobody picks this structure on purpose. You get it by doing nothing.
A limited liability company fixes that exposure. The LLC is a separate legal entity, so creditors can reach the company’s assets but generally cannot touch members’ personal assets. For a group of friends pooling money and effort, that separation is the entire reason to file paperwork.
A corporation offers similar protection but imposes a rigid structure of shareholders, directors, and officers. It makes sense if you plan to raise outside investment or go public. For most friend-group startups, it’s overhead without benefit. The rest of this walkthrough assumes an LLC.
Filing With Your State
You create the LLC by filing a document called Articles of Organization with your state’s Secretary of State or equivalent business filing office. The form asks for a business name that’s distinguishable from existing entities in the state’s database, a physical principal office address (most states won’t accept a P.O. box), a registered agent with a physical in-state address to receive legal documents, and your management structure: member-managed, where all owners run the business, or manager-managed, where designated people handle operations while others stay passive.
Most states let you file online through a business portal, which typically processes in a few business days. Paper filings can take weeks. Fees run roughly $40 to $500 depending on the state, with expedited processing available for an extra charge. Once approved, you’ll get a certificate confirming the LLC exists. You’ll need it to open a business bank account and sign commercial leases.
Getting an EIN and Picking How You’re Taxed
After state approval, apply for an Employer Identification Number from the IRS. This nine-digit number is the business’s federal tax ID. You’ll need it for tax returns, hiring, and bank accounts. The IRS online application is free and issues the EIN immediately.1Internal Revenue Service. Employer Identification Number You’ll name a “responsible party” who controls the business, along with the LLC’s legal name and address. Form SS-4 still exists but is only required if you apply by fax or mail.2Internal Revenue Service. Get an Employer Identification Number
If you’ll operate under a name different from the legal LLC name, file a “Doing Business As” registration with your local county or city clerk. Some jurisdictions require it before issuing a local business license.
Here’s something that surprises most new owners: the LLC doesn’t come with its own tax treatment. The IRS classifies a multi-member LLC as a partnership by default, which means the LLC itself doesn’t pay income tax. Profits and losses pass through to each member’s personal return in proportion to ownership.3Internal Revenue Service. Limited Liability Company LLC This default is set in Treasury regulations, which treat any domestic entity with two or more members as a partnership unless it elects otherwise.4eCFR. 26 CFR 301.7701-3 Classification of Certain Business Entities
Partnership taxation works fine for many small businesses, but every dollar of profit is subject to self-employment tax. If the business generates meaningful income, electing S-corporation treatment can reduce that burden: you pay yourself a reasonable salary subject to payroll taxes, and take remaining profits as distributions that aren’t. File Form 2553 no later than two months and 15 days after the start of the tax year the election should apply to. For a calendar-year business, that’s March 15. Miss it and you wait a year. S-corp status caps you at 100 shareholders, restricts ownership to individuals and certain trusts, and allows only one class of ownership, limits that rarely matter for a small friend group.
Writing the Operating Agreement
The operating agreement is the single most important document in a friend-owned business. It’s the private contract between members that governs what the state filing doesn’t: money, power, exits, and disputes. Most states don’t require it in writing, but without one your business defaults to whatever your state’s LLC statute says, and those default rules almost never match what friends actually intended. Once every member signs, the agreement is legally binding and overrides state defaults.
Ownership and Capital Contributions
State exactly what each person is putting in: dollar amounts for cash, agreed valuations for property or equipment, and the ownership percentage each contribution buys. Those percentages usually drive how profits and losses are split.
Then address what happens when the business needs more money later. Can the LLC require additional contributions? If one friend puts in more and the others don’t, does their percentage increase? These feel premature on day one. They’re the exact scenarios that wreck friendships at month eighteen. Spell out a capital-call process and what happens to a member who can’t or won’t contribute.
Voting and Decision-Making
Decide whether voting power follows ownership percentages or whether each member gets one equal vote. Neither is inherently better, but the choice has real consequences. A 60/20/20 split with proportional voting gives the majority owner effective control; equal voting gives the minority a collective veto.
Separate routine decisions from major ones. Hiring a contractor, buying supplies, signing a small vendor agreement: those can be handled by any member or a designated manager. High-stakes moves deserve a higher threshold. Taking on significant debt, selling major assets, admitting a new member, or changing the business’s core purpose should require unanimous consent or at least a supermajority. Write these categories into the agreement explicitly rather than assuming everyone shares the same definition of “major.”
Vesting Schedules
This is where most friend-group businesses fail to plan, and it may be the single most important provision. Without a vesting schedule, every member owns their full percentage from day one. If one friend leaves after three months, they walk away with their entire stake while everyone else keeps building. That breeds resentment faster than almost anything else in business.
A vesting schedule ties ownership to continued participation. The most common structure is four years with a one-year cliff. No one earns any equity in the first year; a member who leaves before the twelve-month mark walks away with nothing. After the cliff, equity vests monthly over the remaining three years. Stay two years, you’ve earned half. Stay three, three-quarters. Only a member who stays all four years earns the full share.
Friends often resist vesting because it feels distrustful. The alternative is worse: a member with full ownership and zero ongoing involvement.
Buy-Sell Provisions
The agreement must address what happens when someone wants out or needs to be pushed out. Buy-sell provisions create a structured process instead of leaving the remaining members scrambling. The key elements:
- A right of first refusal, so remaining members can buy a departing member’s interest before it’s offered to outsiders.
- A valuation method agreed in advance: a fixed formula tied to revenue or earnings, an independent appraisal, or a book-value formula. The worst approach is having no agreed method at all.
- Triggering events that activate the buyout: voluntary departure, death, disability, bankruptcy of a member, or removal for cause. Each trigger can carry different terms.
- Payment terms. A lump-sum buyout may be impossible for a young business, so many agreements allow installment payments over one to five years with interest, so a departure doesn’t drain the company.
Intellectual Property Assignment
If any member brings pre-existing work to the business, like code, designs, brand concepts, or inventions, the agreement needs an IP assignment clause that formally transfers ownership of that work to the LLC. Without it, the contributing member arguably retains personal ownership of IP the business depends on. The same principle covers work created after formation: anything a member creates in the course of business should belong to the company, not the individual. A clear statement that each member assigns their relevant IP to the LLC in exchange for their ownership interest is enough for most small businesses.
Dispute Resolution
Friends rarely discuss what happens when they disagree, which is exactly why the agreement needs this clause written before any disagreement exists. The standard approach is tiered: direct negotiation first, then formal mediation with a neutral third party, then binding arbitration if mediation fails. That structure keeps conflicts out of court, which is both faster and cheaper than litigation.
Build in a deadlock-breaker for situations where members are evenly split on a critical decision. Options include a trusted outside advisor as tiebreaker, a required buyout when deadlock persists past a set period, or a “shotgun clause” where one member names a price the other must either accept or counter at. The specific mechanism matters less than having one.
Keeping the LLC Alive
Filing articles and signing an operating agreement is the beginning. Most states require LLCs to file an annual or biennial report updating basic information: current address, registered agent, member or manager names. Fees vary widely by state. Miss a deadline and you face late fees. Miss it long enough and the state can administratively dissolve the LLC.
Administrative dissolution is worse than it sounds. A dissolved LLC loses legal authority to operate, can’t bring lawsuits, and the people acting on its behalf can be held personally liable for obligations incurred while it’s dissolved. The liability protection you filed for evaporates. Reinstatement is usually possible but costs more than filing on time, and you may lose your business name if another entity claims it during the lapse.
One filing you likely don’t need to worry about: beneficial ownership information reporting. As of March 2025, FinCEN removed the BOI reporting requirement for all entities created in the United States, narrowing the obligation to foreign companies registered to do business in a U.S. state.5Financial Crimes Enforcement Network. FinCEN Removes Beneficial Ownership Reporting Requirements for US Companies and US Persons That could change through future rulemaking, so check FinCEN’s site when you file.
Protecting the Liability Shield
LLC protection isn’t automatic and permanent. Courts can “pierce the veil” and hold members personally liable if the business looks like a sham rather than a genuine separate entity. The factors courts weigh include whether personal and business funds got mixed, whether the LLC was adequately funded to cover its foreseeable obligations, whether the owners kept proper records, and whether the business operated as a real entity rather than an extension of someone’s personal finances.
The practical takeaways for a friend group are straightforward. Open a dedicated business bank account from day one and never pay personal expenses from it. Keep enough working capital in the LLC to cover normal operations. Document major decisions in writing, even if your state doesn’t technically require formal meeting minutes. These habits feel like bureaucracy when business is good. They become your only defense when things go sideways.
Know the gap: personal guarantees. Banks and landlords routinely require LLC members to personally guarantee loans and leases, especially for new businesses without a track record. A valid personal guarantee lets the creditor pursue your personal assets if the LLC defaults on that specific obligation, regardless of the liability shield. Before anyone signs one, make sure every guaranteeing member understands they’re individually on the hook, and document in the operating agreement how guaranteed obligations are shared among members.