How Stock Options Work at Early-Stage Startups

You just got a job offer at an early-stage startup. The salary looks good, but there's also something about "10,000 stock options" with a "strike price of $0.10." What does that actually mean? Will you make money? When?

This guide breaks down stock options in plain English—no jargon, no hype, just what you need to know before you sign.

What Are Stock Options?

Stock options are the right to buy company stock at a fixed price (the strike price) in the future. They're not stock—they're an option to buy stock later.

The idea: if the company grows and the stock becomes valuable, you can buy shares at your low strike price and sell them at a higher price for a profit.

The Key Parts of Your Option Grant

Your offer letter should specify these details. If anything is missing, ask before you sign.

• Number of options: How many options you're granted (e.g., 10,000)
• Strike price: The price you pay per share when you exercise
• Vesting schedule: How fast you earn the right to exercise
• Cliff: How long before any options vest (usually 1 year)
• Expiration: How long you have to exercise after leaving

Vesting: Earning Your Options Over Time

You don't get all your options on day one. They vest over time. The most common schedule is 4 years with a 1-year cliff:

• Cliff (Year 1): 0% vests until you hit 1 year, then 25% vests
• Years 2-4: Remaining 75% vests monthly (~1.56% per month)

The Cliff: Why It Matters

The 1-year cliff means if you leave before 12 months, you get nothing. It's protection for the company—they don't want to grant equity to someone who leaves quickly.

Strike Price: What You Pay to Exercise

The strike price is set based on the company's 409A valuation—an independent appraisal of the company's fair market value. At early-stage startups, this is often low (cents to a few dollars per share).

The strike price is fixed when your options are granted. Even if the company's valuation increases 10x next year, your strike price stays the same.

Exercising: When Do You Actually Buy the Stock?

Exercising means paying your strike price to convert options into actual stock. You can exercise:

• When fully vested: Many people wait until all options vest
• While employed: Exercise vested options anytime
• After leaving: You have a window (usually 90 days for early startups)

What Does It Cost to Exercise?

To exercise, you pay: Strike price × Number of options

Example: 10,000 options with $0.10 strike = $1,000 to exercise all options.

At early-stage startups, this is often affordable. But remember: you're paying cash upfront for something that may or may not pay off.

What Happens When the Company Exits?

Your options become valuable only if the company has a liquidity event—an acquisition or IPO. Here's what happens:

• If exercised: You already own shares, so you sell them at the exit price
• If not exercised: You must exercise first, then sell (but you may need cash to exercise)

Scenario: The company gets acquired at $50/share, and you have 10,000 options:

• Exercise cost: 10,000 × $0.10 = $1,000
• Sale proceeds: 10,000 × $50 = $500,000
• Your profit: $500,000 - $1,000 = $499,000

What If the Company Fails?

Here's the hard truth: most startups fail. If the company shuts down without an exit, your options are worth zero.

The money you spent exercising is lost. This is why options are high-risk, high-reward.

Taxes: The Complicated Part

Taxes on options are complex. There are two main types:

• ISOs (Incentive Stock Options): Potential tax advantages if you hold shares long-term
• NSOs (Non-qualified Stock Options): Treated as ordinary income when you exercise

83(b) election: For early employees, filing an 83(b) election within 30 days of exercising can reduce taxes—but it means paying taxes now on potential future gains. Talk to a tax professional.

Common Mistakes to Avoid

• Not understanding the cliff: Leaving before 12 months often means losing everything
• Waiting too long to exercise: If you leave, you typically have 90 days
• Ignoring taxes: Exercise + exit can trigger big tax bills
• Assuming options = guaranteed money: Most startups don't exit successfully

Should You Exercise Early?

Exercising early (before an exit) means you:

• Lock in a low strike price
• Start the clock on long-term capital gains (for ISOs)
• Pay cash upfront with no guarantee of return

When it makes sense: You believe in the company, have cash to spare, and want long-term tax advantages.

When it doesn't: You're risk-averse, need cash, or the company's future is uncertain.

Key Takeaways

• Options are the right to buy stock later at a fixed strike price
• Most vest over 4 years with a 1-year cliff (nothing before 12 months)
• You only make money if the company has a successful exit
• Exercising requires paying cash (strike price × options)
• Most options expire 90 days after you leave
• Taxes are complex—consult a professional