What a stock plan is and when to adopt one

If you've incorporated a Delaware C-Corp and plan to give equity to anyone other than the founders, you need a stock plan before the first grant goes out. An offer letter can promise options, but no option exists until the plan is adopted and the board approves the specific grant.
A stock plan (also called an equity incentive plan or stock option plan) is a legal document, adopted by your board and approved by your stockholders, that sets aside a pool of shares and defines the rules for granting equity to employees, advisors, and consultants. Most companies should adopt one at incorporation or shortly after, and in every case before making a first equity grant to a non-founder or closing a priced round.
Below is what the plan contains, what it controls, and how to time its adoption.
A stock plan is the rulebook for every equity grant
A stock plan does not give anyone equity on its own. It authorizes the company to grant equity later, within limits the plan sets. Each individual grant is then made through a separate award agreement that references the plan.
A company can technically issue equity outside a plan, through an individual written compensation agreement. In practice almost no company does this for employees, because Incentive Stock Options (ISO) can only be granted under a plan and one plan keeps every grant on the same terms and the cap table easy to follow.
The plan typically defines the following.
Share reserve. The number of shares set aside for grants, usually called the option pool. Shares in the reserve are authorized but unissued until someone receives a grant.
Eligible participants. Who can receive awards. Employees, directors, advisors, and consultants are usually eligible, though only employees can receive incentive stock options.
Award types. The forms of equity the plan allows, such as incentive stock options (ISOs), non-qualified stock options (NSOs), restricted stock awards, and restricted stock units.
Exercise price rules. Options must be granted at an exercise price at or above the fair market value of the common stock on the grant date.
Vesting framework. The plan permits vesting schedules. The most common is four years with a one-year cliff, set in each award agreement.
Termination and change of control. What happens to unvested and vested awards when someone leaves, and how awards are treated if the company is acquired.
Administration. Who approves grants (usually the board or a committee of it) and who can amend the plan.
The award type decides how the recipient is taxed
The plan usually permits several award types, and the choice for each grant changes the tax outcome for the person receiving it.
Early-stage companies mostly grant options, because they let employees buy shares at today's low valuation without paying tax up front. RSAs are common for very early hires and advisors while the share price is still close to zero. RSUs are more common at later-stage companies.
ISOs only work if the plan follows specific rules
Incentive stock options carry the best tax treatment, and the IRS attaches conditions to them. Several of those conditions sit at the plan level, not the grant level, so a poorly drafted or late-approved plan can quietly turn every ISO into an NSO.
Stockholder approval within 12 months. The plan must be approved by stockholders within 12 months before or after the board adopts it. Miss the window and every option intended as an ISO is treated as an NSO, with no action needed from anyone for that to happen.
Maximum share count stated in the plan. The plan has to state the maximum number of shares that can be issued as ISOs.
Ten-year limit. ISOs must be granted within 10 years of the plan's adoption or approval, whichever is earlier, and each option can have a term of no more than 10 years.
$100,000 annual limit. Only $100,000 worth of ISOs (measured at grant-date value) can become exercisable for the first time for one employee in any calendar year. The excess is treated as NSOs.
10% owner rules. An employee who owns more than 10% of the company can receive ISOs only at 110% of fair market value, with a maximum term of five years.
Exercise after leaving. ISO treatment generally requires exercise within three months of the employee's termination. Plans that allow a longer post-termination window convert the option to an NSO after that point.
Fair market value has to be defensible
Options granted below fair market value fall under Section 409A. The recipient can owe ordinary income tax as the option vests plus an additional 20% federal tax, which turns a benefit into a liability.
The standard protection is an independent 409A valuation of the common stock before the first option grant. A valuation from a qualified independent appraiser is presumed reasonable if the IRS challenges it. That presumption holds for up to 12 months, and only while nothing material changes. A priced financing round, an acquisition offer, or a significant shift in the business can make an existing valuation unreliable, and the company should get a new one before granting any more options.
Founder stock usually sits outside the plan
Founders normally receive their shares at incorporation through restricted stock purchase agreements, not through the stock plan. This keeps the option pool reserved for future hires and keeps founder vesting on its own terms.
Founders buying restricted stock at a nominal price usually file an 83(b) election. The window is 30 calendar days, and it starts on the date the shares are transferred. A board meeting that happens later, or paperwork that is signed after the fact, does not move the start date. The IRS does not extend this deadline for any reason.
The election tells the IRS to tax the shares at their value on the transfer date, which for founders is close to zero. A missed 83(b) means each vesting tranche is taxed as ordinary income at its value on the vesting date, which can be far higher. The IRS now publishes a standard form for the election, Form 15620, though a signed written statement with the required information is still accepted.
Early exercise turns options into restricted stock
Some plans let employees exercise options before they vest, called early exercise. The employee pays the exercise price up front and receives unvested shares that the company can buy back if the employee leaves before vesting.
Those shares are restricted stock, so the same 83(b) logic applies. Filing within 30 days of the exercise date locks in the tax position at exercise, when the spread between exercise price and fair market value is often zero. Without the election, the employee is taxed as each tranche vests, on whatever the shares are worth by then. For ISOs the election affects alternative minimum tax rather than regular income tax, but the timing rule is the same.
When to adopt a stock plan
The right moment depends less on the company's age and more on what the company is about to do with its equity.
At incorporation. Many companies adopt the plan in the same set of board and stockholder consents that set up the company. With only founders as stockholders, stockholder approval is fast, and the 12-month ISO window is easy to meet.
Before the first non-founder grant. This is the latest workable point. If an offer letter promises options, the plan has to be adopted, a 409A valuation completed, and the board has to approve the grant before the option exists. An offer letter that promises a specific number of options without that process in place can create a contractual obligation the company is not yet able to fulfill. The standard fix is to state in the letter that the grant is subject to board approval and to the terms of the plan.
Before a priced round. Investors in a seed or Series A round usually require an option pool of a set size, commonly somewhere around 10% to 20% of the post-money fully diluted capitalization. The pool is typically created or expanded before the round closes and counted in the pre-money valuation, which means the dilution falls on existing stockholders rather than the new investors. Adopting the plan earlier lets you size the pool deliberately rather than under term-sheet pressure.
Not yet, if no grants are planned. A company with only its founders and no near-term hires, advisors, or financing can wait. The cost of waiting is low until equity needs to change hands.
Securities rules apply to every grant
Equity grants are securities issuances. Private companies usually rely on Rule 701 under federal securities law, which exempts offers and sales made under written compensatory plans and agreements from SEC registration. Once the amount sold under Rule 701 in a 12-month period exceeds $10 million, the company must give recipients additional disclosure, including financial statements and risk factors.
Rule 701 does not cover state securities law, often called blue sky law. Each state where a recipient lives can have its own exemption requirements, and some require a notice filing and a fee. California, for example, requires a notice filing shortly after the first issuance under a plan to a California resident. These filings are routine but easy to miss when a remote hire lives in a state the company has not operated in before.
How Inkle fits in
Inkle Incorporation forms your Delaware C-Corp and sets up the formation records a stock plan builds on, including the board and stockholder approvals and the founder share issuances. Once the company is running, Inkle's tax experts handle the US tax and compliance filings that follow as your cap table grows.
The bottom line
A stock plan is the legal precondition for giving anyone other than the founders equity. It does not cost much to adopt early, and adopting it late creates real problems: options that cannot qualify as ISOs, grants made below fair market value, or a pool sized under a term sheet deadline. For most companies, the practical answer is to adopt the plan at incorporation or as soon as a first non-founder grant is on the horizon, get a 409A valuation before that grant, and keep founder stock outside the pool.
Frequently asked questions
What is the difference between a stock plan and an option pool?
The stock plan is the legal document that governs how equity can be granted. The option pool is the number of shares the plan reserves for those grants. You can expand the pool later by amending the plan, which requires board and stockholder approval.
Do I need a stock plan if my company only has co-founders?
Not immediately. Co-founders usually receive their shares through restricted stock purchase agreements at incorporation, outside any plan. You need a plan before granting equity to an employee, advisor, or consultant.
How big should my option pool be?
Early-stage companies commonly reserve 10% to 20% of fully diluted shares, with the exact number driven by the hires planned before the next financing round. Investors often set the required size in the term sheet. A pool sized from a hiring plan is easier to defend in that negotiation than a round number.
Do I need a 409A valuation before granting stock options?
Yes, in practice. Options must be granted at or above fair market value, and an independent 409A valuation is the standard way to establish that value defensibly. Without one, recipients risk ordinary income tax at vesting plus an additional 20% federal tax.
Can an LLC adopt a stock plan?
An LLC has no stock, so it cannot grant stock options or ISOs. LLCs typically use unit option plans or profits interests instead, which have different tax treatment. Many companies convert to a C-Corp before building out an equity program for this reason.
Does a stock plan need stockholder approval?
Board adoption is required under state corporate law, and stockholder approval is required for ISOs to qualify under federal tax rules. That approval must come within 12 months before or after the board adopts the plan. Without it, options granted under the plan are treated as NSOs.




