When to Incorporate a Startup: What Waiting Costs in Tax

Should you incorporate a startup before revenue, or wait?

Forming early has a small, known yearly cost; waiting can create a larger tax cost that is hard to undo. A corporation files a state report and a federal return every year it exists, revenue or not. Waiting until after a SAFE, a priced round or real traction can make founder shares worth more than founders pay for them, and that gap is taxed as pay (26 U.S.C. 83).

A case is not simple when money or a customer arrived before the company did, when a founder lives outside the US, when the business already runs as an LLC, or when shares vest and the 83(b) window of 30 days is close. Gather: each founder's name, split and home country, the date work began, any money received or promised so far, and who paid which costs. Legal reasons to form early, such as liability, contracts and who owns the code, are a question for a lawyer.

What yearly costs start the day you incorporate, even with no revenue?

A Delaware C corporation owes a yearly report and franchise tax to Delaware and a Form 1120 to the IRS from its first year, with or without revenue. Delaware assesses the tax if the corporation is active at any time during the calendar year, and the report is due March 1 of the following year (Delaware). All domestic corporations must file an income tax return whether or not they have taxable income (Form 1120 instructions; 26 U.S.C. 6012).

The state you work from may add its own filing; see Delaware C corporation taxes for startups for the full calendar, including why the first Delaware notice can be far larger than the minimum. Where to form is covered in which state to form in.

If you wait, are two co-founders already a partnership for tax?

Two co-founders who run a business together and split its profits may already be a partnership before any company is formed. A joint venture or other arrangement may create a separate entity for federal tax if the participants carry on a business and divide the profits; merely sharing expenses does not (26 CFR 301.7701-1(a)(2)). With two or more owners, that entity is a partnership by default (26 CFR 301.7701-3).

A domestic partnership must file Form 1065 unless it neither receives income nor has expenses treated as deductions or credits (Form 1065 instructions). A late Form 1065 costs $260 per partner per month. Selling a pilot together and splitting the profit can be enough. The partnership's code and customers then move into the new corporation, a transfer to plan; see moving a startup into a Delaware corporation.

Why are founder shares cheapest before raising money?

Founder shares are taxed as pay to the extent their value exceeds the price paid, so they cost least when the company is worth almost nothing. Under section 83, stock received for services is income equal to its fair market value minus the amount paid. On Form 15620, the income in box 8 is the value in box 6 minus the price in box 7; when founders pay full value, that line is zero.

For shares that vest, an 83(b) election must be made within 30 days of the transfer and cannot be revoked without IRS consent. Without it, each slice is taxed at its value when it vests, which may be after a round has raised the price. Filing steps are in founder shares that vest.

Once the company has taken SAFE money or signed customers, its common shares may be worth more than a nominal price. The gap is taxable pay, in the year of issue if the shares are vested or an 83(b) is filed; an 83(b) does not remove it. If that has already happened, see founder shares issued after a SAFE.

When does the QSBS clock start, and what does waiting cost?

The section 1202 holding period runs from the day the shares are acquired, so every month of waiting is a month later before a sale can qualify. For stock acquired after July 4, 2025, a sale excludes 50% of gain after three years, 75% after four and 100% after five, up to the per-company cap of $15,000,000 (P.L. 119-21, section 70431; 26 U.S.C. 1202). The company's gross assets must not exceed $75,000,000 at any time before or right after the shares are issued.

For unvested shares, the 83(b) election matters here too: without it, section 83(f) starts the holding period only as each slice vests. Who qualifies, and what the active-business test requires, is in QSBS for founders and early employees.

Do you need to incorporate before taking investment or a customer payment?

For tax, money received before the corporation exists belongs to whoever received it: the founder alone, or the founders' partnership. A customer payment taken before incorporating is generally reported on that founder's or partnership's return for that year, not on the corporation's first Form 1120. A SAFE is a right to a company's future shares, so whether one can be signed before the company exists is a legal question for a lawyer. The tax point is order: if the company takes SAFE money before founders get their shares, those shares may be taxable pay (see the section above).

What happens to costs you pay before incorporating?

Costs a founder pays personally before the corporation exists are the founder's, until the corporation repays them or takes them over for shares. The corporation can deduct a limited amount of qualifying start-up and organizational costs in its first year and spread the rest over 180 months (26 U.S.C. 195; 26 U.S.C. 248). Which costs qualify and how to repay founders is covered in startup costs before launch.

Does incorporating in December save a year of filings?

No. A corporation in existence during any part of a tax year must file a return for that part of the year (26 CFR 1.6012-2(a)(2)). A calendar-year corporation formed on December 15 files a short-year Form 1120 by 15th day of the fourth month after year-end. Delaware prorates its tax for the part of the year the corporation existed (8 Del. C. § 503(d)), but the report is still due March 1 of the following year (Delaware). Relief from filing is possible only for a corporation that never completed its organization, did no business and had no income, and only after showing those facts to the IRS.

A late start can even waste a break: California does not charge its minimum franchise tax in a newly formed or registered corporation's first taxable year (FTB), so a calendar-year corporation formed in early December spends that break on a few weeks and owes the minimum for the next full year. A first year of 15 days or fewer with no California business is also free of the minimum. A new corporation sets its tax year on its first return (Publication 538), so a fiscal year can avoid a few-week first year; that choice and what the first return contains are in first corporate return for a pre-revenue startup.

Should you start as an LLC and convert to a C corporation later?

An LLC taxed as a partnership may be simpler to start, but its interests are not corporate stock, so the QSBS clock waits for the conversion. When property such as an LLC's business is exchanged for stock, section 1202 treats the stock as acquired on the exchange date, with a basis of at least the property's fair market value, so value built before conversion does not count toward the exclusion (26 U.S.C. 1202(i)). An LLC with two owners files Form 1065 each year until then. The structure choice is in LLC or C corporation, and the conversion itself in moving a startup into a Delaware corporation.

What changes if a founder lives outside the US?

A founder abroad adds filings on both sides. A US corporation at least 25% owned by a foreign person generally files Form 5472 for reportable transactions with that owner, such as loans, and the penalty for not filing is $25,000 (Form 5472 instructions). The founder's home country may also tax the shares, on its own timing. Whether a non-US founder files an 83(b) is in founder shares that vest; founders in Canada choosing a country should read Delaware or Canadian corporation for a startup.

Example

Incorporate in February, SAFE in June

All figures in US dollars and illustrative. Two founders form a Delaware C corporation in February and buy 8,000,000 vesting founder shares at $0.0001 each, paying $800 in total. Each files an 83(b) within 30 days; the value equals the price paid, so the election reports no income. In June the company takes a SAFE. The founders' QSBS holding period runs from February, and the company owes its Delaware report by March 1 of the next year and a Form 1120 for February to December.

Wait until after a $500,000 SAFE

The same founders take a $500,000 SAFE at a $5,000,000 valuation cap before founder shares are issued. When they then buy their shares for $800, the shares may be worth well above that price. The difference is taxable pay, in that year if the shares are vested or they file 83(b) elections, and the QSBS clock starts only now.

A $20,000 pilot before incorporating

Two co-founders sell a $20,000 pilot in March, split the profit, and incorporate in September. For March to September they may be a partnership that files Form 1065 for that year, and the code they built then has to move into the corporation.

Different for you?

• Not sure a C corporation is the right structure: LLC or C corporation.
• Deciding where to form: which state to form in.
• Founder shares vest and the 30 days are running: founder shares that vest.
• The company took SAFE money before founder shares were issued: founder shares issued after a SAFE.
• The business already runs as an LLC or a corporation in another state: moving a startup into a Delaware corporation.
• Founders paid costs before forming: startup costs before launch.
• One founder in Canada and one in the US: Canadian startup with a US co-founder.
• Just formed and need the first steps: after you form your company.
• Forming the corporation and issuing founder shares in the right order: business formation.