LLC or corporation — what the choice actually changes

What is the same in both, and why it is not the deciding factor

An LLC and a corporation are both separate legal entities. Both can own property, sign contracts and be sued in their own name. In both, the owners are not personally liable for the entity's debts as a general rule, and in both that protection is lost the same way — by commingling money, by failing to capitalise the business, or by using it to do something dishonest. If someone is selling you one structure over the other on the strength of liability protection, they are selling you the thing the two have in common. Piercing the corporate veil covers what actually keeps that shield intact.

The real differences are structural, and there are four of them.

Tax: the real difference is not double taxation

An LLC is by default a pass-through. The entity files an information return, each owner receives a Schedule K-1, and the profit is taxed to the owners on their personal returns — whether or not the company actually distributed any cash. That last clause is the one that catches people. A profitable LLC that reinvests everything can hand its members a tax bill on money they never saw, which is why well-drafted operating agreements include a mandatory tax distribution.

A C corporation is taxed as its own taxpayer. It pays corporate income tax on profit, and shareholders pay again when they take a dividend or sell their stock. That is the double taxation everyone talks about, and it is a genuine cost — for a business whose purpose is to distribute its earnings to a few owners each year.

It is much less of a cost for a company that retains and reinvests everything for years and then sells. In that pattern there are no dividends to be taxed twice, and the eventual gain may fall under section 1202. Which is why the double-taxation objection carries a lot of weight for a consultancy and almost none for a company chasing growth.

The S corporation confuses this further, because it is a tax election rather than an entity type. Both an LLC and a corporation can elect to be taxed as an S corporation if they qualify. The election caps how many shareholders the company may have and restricts who they can be — which is exactly why it is incompatible with outside investment from funds or non-resident investors.

Who is allowed to own it, and what you can sell them

This is where the choice stops being reversible in practice. Venture funds invest through preferred stock: shares with a liquidation preference, protective provisions and conversion rights. A corporation issues them as a matter of course. An LLC has no stock at all — it has membership interests — and replicating a preferred stack inside an operating agreement is possible, unusual, and expensive enough that most funds will simply decline.

The second obstacle is on the investor's side rather than yours. Many venture funds have tax-exempt limited partners — endowments, foundations, pension plans — that go to considerable lengths to avoid unrelated business taxable income. A pass-through entity generates exactly that, along with K-1s and potentially multi-state filings for every partner. Funds avoid the problem by requiring a C corporation.

Add Delaware for the same reason a lot of things end up in Delaware: the Court of Chancery is a specialist business court with decades of case law behind it, so both sides' lawyers can predict how a dispute would be decided. That predictability is the product being bought, and it is why the Delaware C corporation is the default expectation for a company that intends to raise institutional money.

What you can give employees

A corporation grants stock options against a pool reserved in the cap table. Everybody involved — employees, advisers, acquirers, payroll providers — understands what that is.

An LLC has no stock, so its equivalent is a membership interest or a profits interest. These can be made to work and they are used, but they are unfamiliar to candidates, they need bespoke drafting, and they turn the recipient into a member with a K-1 rather than an employee with a payslip. Every one of those is friction at the point where you are trying to hire someone.

Section 1202: the tax break only one of them gets

Qualified small business stock is the strongest argument for the C corporation and the one most often left out of the comparison. Section 1202 of the Internal Revenue Code lets a non-corporate holder exclude gain on the sale of stock in a qualifying domestic C corporation. LLC membership interests do not qualify — the relief is written around corporate stock.

The One Big Beautiful Bill Act, signed on 4 July 2025, changed the terms for stock issued after that date.

Running cost and paperwork

A corporation carries more mandatory machinery. In general, corporations must hold an annual shareholders' meeting and keep minutes of board and shareholder decisions; a board of directors is not optional. States do not impose the same meeting requirements on LLCs, though an operating agreement can — and if it does, the LLC is bound by its own document.

Against that, the LLC's flexibility is real. An operating agreement can allocate profit in ways that do not track ownership percentages, admit members on bespoke terms, and dispense with formalities a corporation cannot. That is the trade: fewer rules to follow, and correspondingly more that you have to write yourself. Does your LLC need an operating agreement covers what happens when you do not.

One structural cost applies either way: forming in a state you do not operate in means two sets of obligations, not one — annual filings and a registered agent where you formed, plus registration and tax where the business actually is.

Converting later, and why the timing matters

You can convert an LLC into a corporation. Founders often plan to, on the theory that they will take the simpler structure now and change it when investors ask. It is a defensible plan with one weakness: the conversion happens under time pressure, in the middle of a financing, when legal spend is already high and the counterparty is waiting. It has tax consequences that depend on how it is structured, and it eats weeks.

If you do not expect to raise, an LLC is a perfectly good place to be. If you do, incorporating at the outset is cheaper and cleaner than converting under pressure with the counterparty waiting.

Outside the United States, the question is different

The LLC is a US creation, and the LLC-versus-corporation framing does not translate. Most other systems offer a private limited company as the ordinary vehicle — a Ltd in the UK and Ireland, a GmbH in Germany, a Pty Ltd in Australia — which is closer to a corporation in structure but often taxed and administered more like a small company than a public one. Terms are also false friends: "corporation" and "LLC" have specific US meanings, and a foreign entity described with an American label may behave nothing like it.

The question that actually decides it

Strip out everything else and you are left with one: are you going to sell equity to people whose own investors care how it is taxed? If yes, form a C corporation, almost certainly in Delaware, and treat the rest as detail. If no — if this is a business that will be owned by the people who run it and will distribute what it earns — an LLC is the better-fitting structure and you should spend the money you saved on a properly drafted operating agreement instead. The mistake is not picking the wrong one. It is picking the one that suits the company you imagine rather than the one you are building.