Seed funding is the first meaningful round of outside capital a startup raises, usually in exchange for an equity stake or an instrument that will later convert into equity. The median U.S. seed round sits around $3.1 million as of 2026, with individual rounds ranging from a few hundred thousand dollars to well over $10 million depending on the sector and the founders’ background. The money carries a company from an idea or early prototype to a product real customers pay for, and it sets the valuation baseline that every later round will be measured against.
How Much Founders Typically Raise
Seed rounds vary enormously. A pre-revenue startup with a first-time founder might close on $500,000, while a team with prior exits building in artificial intelligence can raise $5 million or more before shipping anything. Median pre-money valuations for seed-stage companies hovered around $16 million in 2025, so a $3 million raise at that valuation would hand investors roughly 16 percent of the company.
The target is enough capital to operate for about 18 months before raising again. That runway gives the team time to build the product, land early customers, and hit milestones that justify a higher valuation at the next round. Raising too little forces founders back into fundraising before they have results to show. Raising too much at the seed stage over-dilutes the founders when the company’s valuation is at its lowest point.
Where Seed Capital Comes From
Angel Investors
Angels invest their own money in startups, usually writing checks between $25,000 and $500,000. Many organize into groups that pool capital and share due diligence, which lets them fund larger rounds than a single angel could. Most angels participating in Regulation D offerings must qualify as accredited investors, meaning net worth above $1 million (excluding primary residence) or annual income above $200,000 individually ($300,000 jointly) for at least two consecutive years.1U.S. Securities and Exchange Commission. Accredited Investors
Seed-Stage Venture Capital Firms
Some venture firms focus exclusively on seed deals. They deploy institutional money from limited partners and tend to write larger checks, often $500,000 to $2 million per company. They bring operational support, introductions, and follow-on investment capacity, but they also expect more formal governance, including board seats and information rights. Expect a more structured negotiation than a typical angel round.
Accelerators
Accelerator programs combine capital with mentorship, workspace, and an advisor network. Investment amounts vary by program. Y Combinator invests $500,000 per startup, Techstars invests roughly $120,000 to $220,000, and 500 Global typically offers around $150,000. Most accelerators take 5 to 10 percent equity in exchange for funding and program participation. A few, like MassChallenge, take no equity and award cash prizes instead.
Equity Crowdfunding
Under Regulation Crowdfunding, startups can raise up to $5 million in a 12-month period by selling shares through an SEC-registered broker or funding portal.2U.S. Securities and Exchange Commission. Regulation Crowdfunding Non-accredited investors can participate, but with limits. If your annual income or net worth is below $124,000, you can invest the greater of $2,500 or 5 percent of the larger of your income or net worth across all crowdfunding offerings in a year. If both income and net worth are at or above $124,000, you can invest up to 10 percent of the greater figure, capped at $124,000 total.3eCFR. 17 CFR Part 227 – Regulation Crowdfunding, General Rules and Regulations Crowdfunding works best for consumer-facing startups that can tap their user base as investors, though the compliance and disclosure costs can be heavy for a very early-stage company.
You Probably Need to Be a Delaware C-Corp First
Most institutional investors and many angels will only invest in a C-corporation. If you’re an LLC or sole proprietorship, expect to be told to convert before anyone writes a check. The reasons are structural. C-corps issue shares of stock that are easy to divide into preferred and common classes, they can grant stock options to employees, and they qualify for the Qualified Small Business Stock capital gains exclusion. LLCs pass profits and losses through to members’ individual tax returns, which creates headaches for tax-exempt institutional investors like pension funds and endowments that don’t want taxable income from portfolio companies.
Delaware is the standard state of incorporation for venture-backed startups, even when the company operates entirely elsewhere. Investors prefer Delaware because its Court of Chancery specializes in corporate law and produces predictable rulings, and its corporate statutes are unusually flexible. The modest annual franchise tax is a small price for the legal predictability most seed investors expect.
Common Deal Structures
Priced Equity Rounds
In a priced round, the company sells preferred shares at a fixed price per share, which requires agreeing on a valuation up front. Preferred shares carry rights common shares lack: liquidation preferences (investors get paid first if the company is sold), anti-dilution protections, and sometimes board seats. Priced rounds involve more legal paperwork and higher legal costs than the alternatives below, which is why many seed-stage companies skip them.
Convertible Notes
A convertible note is a loan that converts into equity when the company raises a later priced round. The note accrues interest, typically 4 to 8 percent annually, and carries a maturity date, usually 18 to 36 months out. If no priced round happens by maturity, the note either comes due as debt or converts at pre-negotiated terms. To compensate for the early risk, notes include a valuation cap (a ceiling on the price at which the note converts) and often a discount rate (typically 15 to 25 percent off the next round’s share price). Investors get whichever produces more shares.
SAFEs
The Simple Agreement for Future Equity, created by Y Combinator, has become the most common instrument for seed deals. It works like a convertible note but with no interest and no maturity date, so the founder isn’t carrying a debt that’s accruing cost or coming due. Y Combinator publishes standardized SAFE templates in three main variants: valuation cap only, discount only, and an uncapped “most favored nation” version.4Y Combinator. Safe Financing Documents Most seed investors know these templates, which cuts legal fees and negotiation time.
One distinction trips up first-time founders: pre-money versus post-money SAFEs. With a post-money SAFE, the current Y Combinator standard, each SAFE investor’s ownership percentage is fixed relative to other SAFE holders, and all the dilution from multiple SAFEs lands on the founders. With older pre-money SAFEs, SAFE investors dilute each other too, making it harder to calculate exact ownership until conversion. If you’re raising from multiple investors on SAFEs, knowing which version you’re using matters a great deal for predicting your own dilution.
SEC Compliance for a Seed Round
Selling equity in a private company is a securities transaction, and every seed round must fit within an SEC exemption from full registration. Two Regulation D exemptions do most of the work.
Rule 506(b) allows unlimited capital but no general advertising, and permits up to 35 non-accredited investors alongside unlimited accredited ones. If any non-accredited investors participate, the company must provide more extensive disclosure documents.5U.S. Securities and Exchange Commission. Private Placements – Rule 506(b) Rule 506(c) allows general solicitation and public advertising, but every purchaser must be accredited, and the company must take reasonable steps to verify that status. Self-certification alone isn’t enough.6U.S. Securities and Exchange Commission. General Solicitation – Rule 506(c)
After the first sale of securities in the round, the company must file a Form D notice with the SEC within 15 calendar days.7U.S. Securities and Exchange Commission. Filing a Form D Notice Many states also require a separate notice filing or “blue sky” registration. Missing these deadlines doesn’t automatically void the offering, but it can create legal exposure that resurfaces when a future round’s investors run background checks.
What the Money Gets Spent On
Product development absorbs the biggest share of most seed rounds. The money carries a startup from a minimum viable product to something polished enough for broad release, which means hiring engineers, refining designs, running user tests, and sometimes filing for intellectual property protections. For software companies, this phase usually includes building infrastructure that can handle paying customers at scale rather than demo users.
Hiring is the other large expense. Early employees cost not just salary but opportunity: a bad early hire can set a team back months. Startups stretch seed capital by mixing salary and equity, but the cash portion still makes payroll the single largest recurring cost. Marketing and customer acquisition round out the typical budget. Enough spending to prove customers exist and will pay, but not so much that the company burns through its runway before reaching the milestones a Series A requires.
How a Seed Round Actually Comes Together
Preparation
Before reaching out to investors, you need a pitch deck that explains the problem your company solves, how your product addresses it, the market size, and how you make money. Financial projections covering three to five years should accompany the deck, showing expected revenue, expenses, and burn rate. A capitalization table tracking every shareholder, option holder, and outstanding SAFE or note is essential. Investors will ask for it immediately, and errors here signal sloppiness.
Serious investors will also expect a virtual data room with your incorporation documents, bylaws, existing contracts, employment agreements, IP assignment records, and prior financial statements. Having this organized before outreach saves weeks during due diligence and signals that you run a tight operation.
Outreach and Due Diligence
Raising a seed round means meeting with dozens of potential investors. Warm introductions through mutual connections convert at much higher rates than cold emails. When an investor shows interest, they’ll conduct due diligence: reviewing legal standing, financial records, intellectual property ownership, and any potential liabilities. This is where the data room pays off. Investors check that the pitch deck’s claims hold up and that nothing ugly is hiding, such as unresolved lawsuits, disputed IP ownership, or a messy cap table.
Term Sheet and Closing
If due diligence goes well, the lead investor (the one writing the largest check) usually drafts a term sheet laying out investment amount, valuation, security type, and governance provisions like board seats or voting rights. The term sheet isn’t a binding contract; it’s a framework for the final legal documents. Once both sides agree, lawyers draft the closing documents. The round officially closes when everyone signs and investors wire funds. A SAFE-based round can wrap up in a couple of weeks. Priced rounds with multiple investors and complex terms can take two months or longer.
Tax Obligations Founders Overlook
The 83(b) Election
If you receive restricted stock that vests over time, common for founders and early employees, you have exactly 30 days from the date of the stock transfer to file a Section 83(b) election with the IRS.8Office of the Law Revision Counsel. 26 U.S. Code 83 – Property Transferred in Connection With Performance of Services This election lets you pay income tax on the stock’s value at transfer, when it’s presumably worth very little, rather than at each vesting event, when it could be worth much more. Missing the 30-day window is irreversible. The IRS does not accept late filings, and the tax consequences can be enormous if the company’s value climbs between grant and vesting. This is one of the most common and expensive mistakes founders make.
Qualified Small Business Stock
Section 1202 of the Internal Revenue Code lets investors in qualifying C-corporations exclude a portion of their capital gains when they sell the stock. For stock acquired after July 4, 2025, which includes 2026 investments, a tiered exclusion applies based on holding period: 50 percent after three years, 75 percent after four years, and 100 percent after five years. Any gain that isn’t excluded under the three- or four-year tiers is taxed at 28 percent rather than the standard capital gains rate. The maximum exclusion is the greater of $15 million or ten times your adjusted basis in the stock, per issuing company.9Office of the Law Revision Counsel. 26 USC 1202 – Partial Exclusion for Gain From Certain Small Business Stock The benefit only applies to C-corporations, which is another reason LLCs struggle to attract institutional seed capital.
QSBS qualification has specific requirements. The corporation’s gross assets must not exceed $50 million when the stock is issued, and the company must be engaged in an active trade or business (certain industries, including finance, hospitality, and professional services, are excluded). Both founders and investors should confirm QSBS eligibility early, because structuring decisions at the seed stage determine whether the exclusion is available years later at exit.