How to Incorporate a Startup: A First-Time Founder's Guide

You've got a side project that's starting to feel real. Maybe you have early users, maybe a co-founder, maybe a check coming from someone who keeps asking, "Are you a real company yet?" That last question is usually what pushes founders to finally figure out how to incorporate a startup.

The bad news: most of the advice online is written for tax accountants, not founders. The good news: the actual decisions are simpler than they look. There are about five real choices to make, the paperwork takes a weekend, and you can do almost all of it for under $500 if you're careful.

Here's the playbook, written the way I wish someone had explained it to me the first time.

When should you incorporate a startup?

Incorporate the moment you're about to take real money, sign a real contract, hire a real person, or split equity with a co-founder. Before any of those, you can usually wait.

A lot of first-time founders incorporate too early. They get excited, file a Delaware C-corp on day one, and then spend $800 a year on franchise tax for a company that hasn't validated anything. If you're still in idea-and-prototype mode and the only money flowing is your own, you don't need a legal entity yet. Your laptop and a Notion doc are fine.

The trigger points where you actually need an entity are clear: you're about to take outside investment, you're signing a customer contract that needs a real legal counterparty, you're hiring an employee or contractor and don't want personal liability, you're splitting equity with a co-founder, or you're storing user data that creates real risk. If any of those are days or weeks away, file now. If they're months away, focus on the product.

There's one exception worth flagging: if you're applying to an accelerator like Y Combinator or Techstars, they'll usually want you incorporated as a Delaware C-corp before they wire the SAFE. Don't get caught flat-footed two days before close.

Should you form an LLC or a C-corporation?

If you're planning to raise venture capital, form a Delaware C-corp. If you're building a lifestyle business or a profitable services company, an LLC is simpler and cheaper. That's the 80% answer.

The real distinction comes down to who can own you. C-corps can issue multiple classes of stock, take on institutional investors, grant employee stock options, and eventually IPO. LLCs are pass-through entities, which is great for taxes when you're profitable, but they're a nightmare for VCs because most fund LP agreements prohibit them from owning LLC interests. If you tell a Sand Hill associate you're an LLC, you'll see their face do something interesting.

For SaaS, marketplace, deep tech, or anything aiming at venture scale: C-corp. For an agency, ecommerce store, consulting practice, or local services business: LLC. If you're somewhere in the middle and not sure, default to C-corp because converting an LLC to a C-corp later is doable but annoying, and triggers tax events you don't want.

A common worry I hear: "But C-corps have double taxation." This is technically true and practically irrelevant for startups. You're not going to be paying corporate income tax for years because you're not going to be profitable for years. By the time you are profitable, you'll have a CFO who can think about it.

Why do most startups choose Delaware?

Most venture-backed startups incorporate in Delaware because investors expect it, the courts are predictable, and the corporate law is the most developed in the country. It's the path of least resistance.

Delaware has a separate court system called the Court of Chancery that handles only business disputes, with judges who specialize in corporate law and no juries. When you read about a "shareholder lawsuit" or a "fiduciary duty case," it's almost always being heard there. For investors, this means lower legal risk and faster resolution if something goes wrong.

The other reason is just convention. Term sheets, SAFE templates, board consent forms: they all assume Delaware. If you incorporate in your home state, every law firm involved in your eventual fundraise will quietly add a step to convert you, and the bill shows up on your closing statement.

That said, if you're certain you'll never raise outside capital and you're running a small profitable business, incorporating in your home state is fine and probably cheaper. You skip the registered agent fee in Delaware (around $50 to $300 per year) and you don't have to file in two states. But if there's any chance you'll raise, save yourself the headache and start in Delaware.

There's a related question about state of operation. If you incorporate in Delaware but operate out of California, you'll usually need to register as a foreign entity in California, which means California franchise tax. Don't try to outrun your state's tax laws by picking a different state of incorporation. It doesn't work.

What does it cost to incorporate a startup?

Expect to spend between $300 and $800 to incorporate a Delaware C-corp the first year if you DIY, and between $500 and $2,500 if you use a service. Here's where the money actually goes.

Filing the certificate of incorporation with Delaware costs around $109 if you're authorizing a standard 10 million shares of common stock. Annual franchise tax for a small startup with the right share structure is $400 minimum, sometimes higher if you authorize too many shares (this trips up new founders constantly). A registered agent in Delaware runs $50 to $300 per year, depending on the provider. An EIN from the IRS is free if you do it yourself online.

If you use a service like Stripe Atlas, Clerky, Firstbase, or doola, you'll pay $500 to $800 upfront, and they'll handle the filings, registered agent, and basic post-incorporation paperwork. For a venture-track startup, this is usually worth it because they generate a clean cap table and standard founder documents that any law firm will recognize. Foundra's planning workflow walks founders through these decisions before they spend the money, so you're not paying a service to make choices you haven't actually made yet.

The "hidden" costs that surprise people: stock issuance to founders (you literally have to "buy" your own shares, usually for $0.0001 each, so $100 in total for 1 million shares), 83(b) election filings (free, but if you miss the 30-day window the tax cost can be enormous), and state foreign qualification if you operate in another state ($100 to $750 depending on the state).

For a lifestyle LLC, the math is simpler: $50 to $500 to file in your home state, and most states don't have annual franchise tax. Wyoming and New Mexico LLCs are popular for low-cost privacy reasons but come with their own compliance considerations.

How do you actually file the paperwork?

Filing a Delaware C-corp takes about three to four hours of focused work if you DIY, or one form on a service. Here's the order of operations.

First, pick a name and check availability. The Delaware Division of Corporations has a free name search at corp.delaware.gov. The name must include "Inc.," "Corp.," "Corporation," or similar, and can't be deceptively similar to an existing entity. Pro tip: also search the USPTO trademark database before you commit, because a clean Delaware filing doesn't protect you from a trademark holder.

Second, decide your share structure. The standard for venture-backed startups is 10,000,000 authorized shares of common stock, par value $0.0001. Don't authorize 100 million shares to "look big." Delaware franchise tax is calculated based on authorized shares, and going over 10 million can spike your annual bill from $400 to several thousand.

Third, file the Certificate of Incorporation. This is a one-page document filed with the Delaware Division of Corporations, either by mail, fax, or via a service. It lists the corporation's name, registered agent address, total authorized shares, and incorporator. Filing fee is $109 plus a $50 expedite if you want it back within 24 hours.

Fourth, get your EIN from the IRS. Apply online at irs.gov, takes 10 minutes, free, and you'll have the number immediately if you file as a U.S. resident. Non-U.S. founders need to file Form SS-4 by fax or mail, which can take weeks.

Fifth, prepare and sign the post-incorporation documents: bylaws, action by the incorporator, founder stock purchase agreements, board consent, and indemnification agreements. If you're using a service, this is generated for you. If you're DIYing, the Y Combinator post-funding documents are public on their website and a reasonable starting template, but get a lawyer to review before you sign anything you're going to issue stock against.

Sixth, file your 83(b) election within 30 days of receiving founder stock. Miss this window and you'll owe ordinary income tax on the appreciation of your shares as they vest, which on a successful startup could be six or seven figures. This is the single most expensive mistake first-time founders make. Send it certified mail, keep the receipt, and don't lose it.

What do you need to do after incorporating?

After you incorporate, you need to issue founder stock, set up a bank account, file your 83(b), get bookkeeping in place, and stay current on annual filings. This is where most founders drop the ball.

Issue founder stock immediately, not "later." Your shares should be issued and paid for (even if it's $100 total) before you do any meaningful work for the company, because the lower the value of the company at issuance, the lower the tax basis. Backdating is fraud. Don't.

Open a business bank account in the company's name. Mercury, Brex, Relay, and traditional banks like SVB or Chase Business all work. Wait until you have your EIN and certificate of incorporation in hand. Once the account is open, never co-mingle: every dollar in or out of the business goes through that account, not your personal one. Co-mingling is the fastest way to lose your liability protection.

Set up basic bookkeeping. QuickBooks, Xero, or even a clean Google Sheet works for the first few months. The IRS will eventually want a tax return, and so will any future investor. Track every expense, every revenue dollar, and every equity event. If you can't afford a bookkeeper, you can do it yourself in 30 minutes a week if you stay disciplined.

File your 83(b) election. I'm mentioning it twice because I'd rather be annoying than have you miss it. Thirty days from stock issuance, certified mail, keep the receipt.

Mark your calendar for annual filings. Delaware franchise tax and annual report are due March 1 every year. Federal tax return is due April 15 (Form 1120 for C-corps). State franchise tax dates vary. Missing these doesn't dissolve the company immediately, but it stacks up penalties and can put you in bad standing right when you need to close a round.

Get a basic legal stack. A founders agreement, even a simple one, that covers vesting, IP assignment, and what happens if a co-founder leaves. Standard vesting is four years with a one-year cliff. IP assignment is non-negotiable: every founder must assign all relevant IP to the company at incorporation. If you skip this, the first VC who does diligence on you will not invest.

What are the most common incorporation mistakes?

The most common incorporation mistakes are filing too early, picking the wrong entity type, forgetting the 83(b) election, authorizing too many shares, and skipping IP assignment. Each one is fixable, but some are expensive to fix.

Filing too early burns money on annual franchise tax for an entity you don't need yet. If you've been an "Inc." for two years and have no revenue, no users, and no customers, you've probably spent $1,000+ on a vanity title. Wait until you have a real reason.

Picking an LLC when you'll later raise venture capital means you'll have to convert to a C-corp at the worst possible moment, which triggers tax events and slows your fundraise by weeks. Pick the right entity the first time.

Missing the 83(b) deadline is the most expensive mistake on this list. It can cost you hundreds of thousands of dollars in tax over the life of a successful startup. There is no extension, no appeal, no "I forgot." Thirty days, no exceptions.

Authorizing too many shares of stock makes your Delaware franchise tax skyrocket. The default for a venture-track startup is 10 million authorized shares. Going to 50 million or 100 million for no reason can push your annual tax bill from $400 to $5,000+.

Skipping IP assignment means the company doesn't actually own the code, designs, or content you've built. Every founder, employee, and contractor needs to sign a Confidential Information and Invention Assignment Agreement (CIIAA) on their first day. If you've been operating without one, fix it now and have everyone sign it retroactively. It's not perfect, but it's better than nothing.

Key takeaways

Incorporate when you're days away from taking money, signing a contract, hiring someone, or splitting equity, not before. For venture-track startups, default to a Delaware C-corp with 10 million authorized shares of common stock. For lifestyle businesses, an LLC in your home state is simpler and cheaper. Budget $300 to $800 for a DIY Delaware filing, $500 to $2,500 if you use a service like Stripe Atlas or Clerky.

The work doesn't end at filing. Issue founder stock immediately, file your 83(b) within 30 days, open a business bank account, set up bookkeeping, and never co-mingle funds. Get a real founders agreement with vesting and IP assignment in place before you take any outside money.

Most first-time founders waste money on incorporation by either filing too early or picking the wrong entity. Pick the right one the first time, do the post-filing checklist properly, and you'll spend a few hundred dollars instead of a few thousand. If you want a structured walkthrough of these decisions alongside the rest of your launch prep, Foundra's planning tools cover incorporation timing as part of the broader business plan workflow, and there are free calculators at foundra.ai/tools/ for the financial side. Tools like Stripe Atlas, Clerky, and Firstbase handle the actual filings well if you've already made the decisions.

FAQ

How long does it take to incorporate a Delaware C-corp?
Standard filing takes 7 to 10 business days. Expedited 24-hour filing costs an extra $50 to $100. Most services like Stripe Atlas can complete the full incorporation process, including EIN, in 5 to 10 business days for U.S. founders.

Do I need a lawyer to incorporate a startup?
Not for the filing itself. Services like Stripe Atlas, Clerky, and Firstbase generate the standard documents correctly. You should have a lawyer review your founder stock issuance, IP assignment, and any custom terms before signing, especially if you have multiple co-founders or unusual equity arrangements.

Can I incorporate from outside the United States?
Yes. You don't need to be a U.S. citizen or resident to form a Delaware C-corp. Getting an EIN takes longer (Form SS-4 by fax can take 4 to 8 weeks), and you'll need a U.S. registered agent. Services like Stripe Atlas and doola specialize in non-U.S. founders.

What happens if I miss the 83(b) election deadline?
You'll be taxed on the value of your shares as they vest, at ordinary income rates. On a startup that hits even a modest valuation, this can mean a six-figure tax bill on stock you can't sell. There is no extension. The 30-day window is firm.

Should I incorporate in my home state instead of Delaware?
If you're certain you'll never raise venture capital and you're running a profitable small business, your home state is fine. If you might raise, incorporate in Delaware from day one to avoid converting later. Either way, you'll likely register as a foreign entity in your state of operation, so don't expect to dodge state taxes.

What is the difference between authorized and issued shares?
Authorized shares are the maximum number your corporation can issue, set in the certificate of incorporation. Issued shares are the ones actually given to founders, employees, and investors. Most startups authorize 10 million and issue around 8 million to founders, leaving 2 million for the option pool.