--- slug: startup-legal-formation type: pattern summary: "The default legal structure of a fundable US tech startup: a Delaware C-Corp incorporated before raising, with founder IP assigned and equity vesting from day one." created: 2026-05-26 updated: 2026-06-10 related: cap-table-hygiene: relation: upstream-of note: "A Delaware C-Corp with IP assignment and stock-purchase agreements in place is the structure cap-table hygiene is practiced on, so the formation choices come before the record-keeping discipline." cofounder-equity-split: relation: enables note: "Incorporation is the moment the agreed founder split stops being a conversation and becomes issued stock on a signed purchase agreement, so the formation event is where the split is formalized." vesting-cliff: relation: enables note: "Founder restricted stock is issued at formation with the standard vesting schedule attached, so the formation documents are where vesting is installed before any capital arrives." safe-note: relation: upstream-of note: "The post-money SAFE and the standard convertible instruments are drafted to convert into the preferred stock of a Delaware C-Corp, so a clean C-Corp is the structure the instruments assume." term-sheet-mechanics: relation: upstream-of note: "A priced preferred round is papered against a Delaware C-Corp's charter and bylaws, so an LLC or a non-Delaware entity has to convert before a standard term sheet can close." due-diligence: relation: related note: "Entity type, IP assignment, and the 83(b) and stock-purchase paper trail are among the first items an investor's counsel inspects, and a defect found there reprices or stalls the round." sector-regulatory-risk: relation: complements note: "Choice of entity is the baseline formation decision, while sector regulation adds a separate layer of formation-stage constraints for founders in fintech, healthcare, AI, and crypto." --- # Startup Legal Formation > **Pattern** > > A named solution to a recurring problem. *Incorporating as a Delaware C-Corp before raising, with founder IP assigned and equity vesting from day one, so the structure an investor diligences is already the one they expect.* A founder builds for a year as a single-member LLC because the formation site was written for small businesses. Then a seed investor sends a term sheet. Counsel explains that the fund can't invest in the LLC, the SAFE the founder signed assumes a corporation, and the company must convert to a Delaware C-Corp before closing. The conversion costs five figures, burns weeks during the raise, and exposes a contractor who never assigned their code. The defect was quiet until money arrived. ## Context This pattern sits at the start of the founding-formation stage, before outside capital and ideally before shared code. It is the structure the rest of the company records itself against: the [equity split](cofounder-equity-split.md), [vesting](vesting-cliff.md), stock purchases, and [cap-table hygiene](cap-table-hygiene.md). For a venture-track US startup, the default is narrow: Delaware C-Corporation, formed before raising, with founder and early-contributor intellectual property assigned to the company and founder stock issued on vesting from the start. That isn't the right structure for every business. A consultancy, lifestyle company, or bootstrapped firm that never intends to raise institutional money may be better served by an LLC and pass-through taxation. The pattern is for the company that expects venture capital and an equity exit. For that company, formation is less a creative choice than a known default. ## Problem Formation mistakes don't throw an error. A founder can choose the wrong entity, skip IP assignment, or incorporate at home instead of Delaware and still operate for a year. The problem arrives at diligence, when investor counsel finds a fund can't invest in the entity, the company may not own its product, or a departed founder's equity is stuck on the table. Each defect costs far less to prevent than to fix, and each appears when the company is trying to close a round. The wrong choice often looks reasonable in isolation. An LLC is simpler and cheaper for many small businesses. Home-state incorporation avoids one filing. A contractor IP assignment is one more document no one wants to chase. The trap is that general-purpose formation guidance optimizes for ordinary small businesses, while venture financing assumes a different form. ## Forces - **Simplicity now versus fundability later.** An LLC is cheaper and simpler at first. A venture-track company pays that simplicity back later through conversion, on the investor's timeline. - **Founder tax versus investor requirement.** C-Corp double taxation matters for a profitable small business. For a startup reinvesting every dollar and aiming at an equity exit, the investor requirement usually dominates. - **Home-state convenience versus the Delaware default.** Local incorporation avoids a foreign-qualification filing and annual Delaware franchise tax. Standard financing documents, investors, and their counsel assume Delaware. - **Speed of building versus the paper trail.** IP assignments, stock-purchase agreements, vesting documents, and 83(b) elections compete with product work. The deadlines are quiet, which is why they get missed. ## Solution **Form the company the way venture investors expect to find it: a Delaware C-Corporation, incorporated before raising, with founder IP assigned, founder stock on vesting, and 83(b) elections filed on time.** The standard form has four parts that matter. First, **the Delaware C-Corp.** Most venture-backed startups incorporate as C-Corporations in Delaware, not as LLCs or S-Corps. A C-Corp supports preferred and common stock, lets institutional investors hold shares without pass-through tax liability, and matches the assumptions in SAFEs, convertible notes, and standard term sheets. Delaware is the default because its corporate law is developed, its Court of Chancery is a specialized business court, and the financing documents assume it. An S-Corp fails the venture test because it caps shareholders at 100 and bars entity shareholders, which no fund can satisfy. Second, **incorporate before raising, and assign IP from the start.** The entity should exist before outside money or shared work product. Every founder signs an invention-assignment agreement transferring their work to the company, and every contractor and early employee does the same. Under US copyright law, contractor work belongs to the contractor by default unless assigned in writing. A company that skips this may not own its codebase. That can sink an acquisition, not merely delay a financing. Third, **issue founder stock on vesting and file the 83(b) election.** Founders typically receive restricted stock at formation on the standard [four-year schedule with a one-year cliff](vesting-cliff.md). Each founder files an 83(b) election with the IRS within 30 days of the grant, paying tax on the stock's near-zero value at issuance rather than on its value as it vests. Missing the 30-day window is irreversible and can create a large tax bill years later. Fourth, **keep the setup standard and cheap.** The early structure is standardized enough that low-cost incorporation services can produce a fundable result for a few hundred to a couple of thousand dollars. That matters because the corner founders are tempted to cut early is the one that costs most later. > **⚠️ Warning** > > "Incorporate before raising" does not mean "incorporate the day you have an idea." Incorporation starts Delaware franchise-tax and corporate-maintenance obligations. A solo founder still validating an idea may reasonably wait. The entity needs to exist before there is shared IP, an outside investor, or a co-founder equity stake to record, whichever comes first. ## How It Plays Out The clean case is invisible. Two founders agree on a split, incorporate as a Delaware C-Corp before writing shared code, sign invention-assignment agreements, issue restricted stock on four-year vesting, and file 83(b) elections within 30 days. A year later, a seed term sheet arrives against exactly that structure. Entity and IP diligence comes back clean. The formation work cost an afternoon and a few hundred dollars, and it returns that investment by never becoming a topic. The cleanup case is the common warning. A founder builds inside a home-state LLC, signs a SAFE, and then has to convert when a fund's counsel explains that the LLC is uninvestable for them. Stripe Atlas, Clerky, and Y Combinator publish formation guidance because this conversion is routine and avoidable. It is survivable, but it costs legal fees, slows the raise, and often exposes a second defect, especially a missing contractor IP assignment. The deal rarely dies outright. It bleeds through fees, delay, and a weaker negotiating position when someone is deciding the company's price. ## Consequences **Benefits.** A standard Delaware C-Corp with assigned IP and vested founder stock matches what investors, counsel, and financing documents expect. It lets the company take institutional capital, issue preferred stock in a priced round, and grant employee options out of a clean pool. It also establishes company ownership of the product, protecting both the next round and a future acquisition. Correct formation matters because it is boring: no one has to talk about it at closing. **Liabilities.** A C-Corp carries overhead an ordinary small business may avoid: Delaware franchise tax, double taxation for profitable non-venture companies, and corporate-maintenance work. For a founder who never raises venture capital, the venture default can be the wrong default. Clean formation also does not make later choices good. A Delaware C-Corp with a badly negotiated [first SAFE](safe-note.md) or an over-generous early grant is still a company that made expensive decisions. Formation sets the record; it does not make the record wise. ## Sources - Brad Feld and Jason Mendelson, *[Venture Deals](https://openlibrary.org/works/OL16134369W)* — the standard practitioner reference on venture financing, and the source for why institutional investors require a Delaware C-Corp and how entity and IP defects surface and reprice a round at diligence. - Y Combinator's incorporation and formation guidance, including [its library on getting started](https://www.ycombinator.com/library) — the canonical statement of the Delaware C-Corp default, the case for incorporating before raising, and the standard founder-stock, vesting, and IP-assignment paperwork. - The Delaware Division of Corporations and the [Court of Chancery](https://courts.delaware.gov/chancery/) — the primary source on why Delaware's developed corporate law and specialized business court make it the default state of incorporation for venture-backed companies. - The IRS [Form 15620, the election under Section 83(b)](https://www.irs.gov/pub/irs-pdf/f15620.pdf) — the primary source on the 30-day filing window for restricted stock and the tax consequences of the election that founders install at formation. --- - [Next: Diversity and Capital Access](diversity-capital-access.md) - [Previous: Founder Mode](founder-mode.md)