Should You Form an LLC or a C-Corp? It Comes Down to One Question

I get some version of this question every week. Someone is days away from forming their company, they've read a dozen Reddit threads and three contradictory blog posts, and now they're frozen. LLC or C-corp? Delaware or home state? Should they future-proof for investors they don't have yet?

Most of that anxiety is wasted. The choice between an LLC and a C-corp is one of the few formation decisions with a genuinely clean answer for most software founders. You can get to it with one question.

Are you raising venture capital?

Not "might you someday, if everything goes great." Not "wouldn't it be nice." Do you have an actual plan to raise a priced equity round from institutional investors in roughly the next two years? If yes, you want a Delaware C-corp. If no, you want an LLC, almost certainly in your home state. Nearly everything else is detail.

Here's why that one question carries so much weight, and why "form a C-corp just in case" is usually the wrong move.

What each one is actually built for

An LLC is built for keeping things simple and keeping your money. By default it's a pass-through entity. The business profit lands on your personal tax return, you pay tax on it once, and you take home what's left by moving money from the business account to your personal one. One return, no double taxation, no payroll required for an owner. It's the right tool for a founder running a profitable business for income.

A C-corp is built for a different job: raising money and selling stock. It's a separate taxpayer that pays its own 21% federal tax, and it can issue the things investors and employees expect. Common stock for founders. Preferred stock for VCs. Options for early hires. The entire venture financing system runs on C-corp stock. The trade-off is that a C-corp is not built to hand you the profit every year, and when it does, that money gets taxed twice.

The double taxation everyone mentions and nobody explains

You've seen "C-corps have double taxation" a hundred times. Here's what it actually means. The corporation earns $100 of profit and pays 21% corporate tax. Then, if it hands the remaining $79 to you as a dividend, you pay tax again at the individual level (qualified dividend rates of 15 to 20 percent, plus the 3.8% net investment income tax if you're over the threshold). The same dollar gets taxed on the way in and on the way out.

For a profitable business you're running for income, that's a real penalty compared to an LLC, where the profit is taxed once and you keep the rest.

But there's a catch that flips the whole thing for startups. Venture-track companies don't distribute profit. They reinvest every dollar, often run at a loss for years, and the founders' payday doesn't come from annual dividends. It comes at the exit, when the company is acquired or goes public. If you're never pulling money out as dividends, the double-taxation penalty barely touches you. And the exit is exactly where the C-corp has a feature the LLC can't match.

QSBS: why C-corps win at the finish line

This is the part most "LLC vs C-corp" posts skip, and it's the most important part for anyone actually raising money.

Section 1202 of the tax code lets you exclude a large chunk of your gain from federal tax when you sell qualified small business stock, or QSBS. Only C-corp stock can be QSBS. An LLC interest cannot, full stop.

The rules got more generous in 2025. For stock acquired after July 4, 2025, the exclusion is now tiered: hold for three years and you can exclude 50% of the gain, four years gets you 75%, five years gets you 100%. The cap on excludable gain per company went from $10 million to $15 million, and a company can now qualify with up to $75 million in assets, up from $50 million. Stock acquired before that date follows the old rules, which are still good: hold five years, exclude 100%, up to $10 million.

Put concrete numbers on it. You found a C-corp, hold your founder stock five years, and sell for $15 million of gain. You could owe zero federal tax on it. That is not a typo, and it is the single biggest reason venture-backed founders incorporate as C-corps. It's also why "I'll just convert my LLC later" can be a costly sentence, because the clock on that holding period starts when you get the stock, not when you first had the idea.

Why "just in case" is the expensive choice

Say you form a C-corp with no investors and no concrete plan to raise, purely to be ready. Here's what you've signed up for. A separate federal tax return (Form 1120, usually $1,000 to $2,500 at a CPA). Payroll for yourself, because you're now a W-2 employee of your own company and the IRS expects reasonable compensation. Delaware franchise tax and an annual report every year (a $225 minimum, due March 1, and a genuinely alarming-looking bill if someone set up 10 million authorized shares and you calculate it the wrong way). And the double taxation waiting for you the day you want to take profit out.

All of that, every year, to be ready for a financing event that most founders never have.

The LLC founder next to you is filing one return, paying themselves with a bank transfer, and getting taxed once. If they later get serious about raising, they convert to a C-corp. Conversion isn't free. It runs $1,500 to $3,000 in legal work and can reset that QSBS clock. But paying it once, when you actually have a term sheet in hand, beats paying the C-corp tax and the C-corp paperwork every single year for a maybe.

When the C-corp is right from day one

There's a real list of cases where you should form the C-corp now and not look back:

• You have a term sheet, or a credible, near-term plan to raise a priced round. VCs require Delaware C-corps and every deal document assumes one.
• You're giving early employees real equity through stock options. LLCs can grant profits interests, but options are what engineers understand and what your future investors will want to see.
• You want the QSBS holding clock running as early as possible. Starting it early is the entire game.
• You're going through an accelerator that requires a Delaware C-corp to fund you.

If that's you, don't form an LLC and convert later. Form the Delaware C-corp now. Then file your 83(b) election within 30 days of receiving founder stock that vests, because missing that 30-day window is a real, expensive, and completely avoidable tax mistake. Set a calendar reminder the day you incorporate.

A quick side-by-side

Where to form, briefly

If you land on the LLC, form in your home state. I've written about why the Wyoming and Delaware hype is usually wrong for LLCs in a separate post, so I won't repeat it here. If you land on the C-corp, it's Delaware, and this is the one place the famous "incorporate in Delaware" advice is actually right. The Court of Chancery and decades of corporate case law are real advantages, and they're advantages for C-corps specifically, not for LLCs.

Where QuickBiz fits

QuickBiz forms both. An LLC is $150 plus your state's filing fee, and a Delaware C-corp is $200 plus Delaware's fee, with corporate bylaws written for software companies instead of a generic operating agreement.

One caveat, though. If you're raising a real round, the entity is the easy part. You'll also want a cap table tool and probably a startup lawyer for the financing itself. We make sure your C-corp is stood up correctly in Delaware. We don't negotiate your Series A, and anyone who tells you formation and fundraising are the same service is overselling.

I'm a founder who has been through this, not your lawyer or your CPA, and QSBS in particular is worth getting real advice on before a big exit. But for the everyday decision in front of you, the question still holds. If you're bootstrapped and profitable, the LLC is almost certainly your answer. If you know you're raising, the Delaware C-corp is the right call from day one.