Equity-plan basics back in focus

Founders are dusting off stock-option math that felt optional in 2021, because when cash is tighter, a 2% grant or a bad strike price can do more recruiting work than another $20,000 of salary. A new April 9, 2026 startup-law explainer puts option-pool size, tax treatment, vesting, and valuation back at the center of board conversations. (thestartuplawblog.com) An option pool is the slice of shares a startup sets aside for future hires, and the size of that slice changes who gets diluted before the next round even closes. Cooley says founders who build a 12-to-18 month hiring budget often end up with a smaller, more defensible pool than the abstract percentage investors first ask for. (cooleygo.com) That pool math got sharper as dilution became easier to measure across the market. Carta found median dilution fell from 23% to 20.1% at seed and from 24.1% to 20.5% at Series A between the first quarter of 2019 and the first quarter of 2024, which means every extra pool top-up now stands out more clearly on the cap table. (carta.com) Then comes the split between incentive stock options and nonstatutory stock options, which sound similar until taxes arrive. The Internal Revenue Service says incentive stock options generally do not create regular taxable income at grant or exercise, while nonstatutory stock options can create income depending on value and timing. (irs.gov) Incentive stock options come with a catch that boards forget until a late-stage hire gets a big grant. Federal regulations say only $100,000 of stock, measured by grant-date value, can first become exercisable as incentive stock options in one calendar year, and any excess spills over into nonstatutory treatment. (ecfr.gov) Vesting is the clock that decides when someone actually earns the option, and the standard startup version is four years with a one-year cliff. That one-year cliff means an employee who leaves after 11 months usually gets zero, while an employee who stays 12 months unlocks the first block all at once and then vests monthly or quarterly after that. (thestartuplawblog.com) The strike price usually comes from a 409A valuation, which is the private-company appraisal used to price common stock for options. Valuation firms say that number normally has to be refreshed at least every 12 months, or sooner after a material event like a financing round, because an old price can turn a clean grant into a tax problem. (stout.com) If that strike price is set below fair market value, the mistake is not cosmetic. Cooley’s 2025 equity-compensation materials warn that failure to fit within or comply with Section 409A can trigger immediate income inclusion at vesting plus a 20% penalty tax. (cooley.com) Early exercise is the move where someone buys shares before they vest, usually when the price is still low. That choice often goes hand in hand with an 83(b) election, and the Internal Revenue Service says that filing must be made within 30 days after the property transfer date. (irs.gov) Miss that 30-day window and the tax bill can shift from “pay tax on pennies now” to “pay tax on dollars later as shares vest.” That is why this old plumbing is back in focus: in a slower market, equity design is not paperwork after the real decisions, it is the real decision on who gets hired, who stays, and how much ownership is left when the company finally raises or sells. (thestartuplawblog.com)