Vesting Schedules for Startups: How Equity Vesting Works (With Examples)

Equity vesting is one of the most consequential — and most misunderstood — mechanisms in startup finance. Get it wrong and you either demotivate your best people or create serious legal and accounting headaches down the road. This guide explains exactly how vesting schedules work, why every startup uses them, and what the numbers look like in practice.

Why Startups Use Vesting Schedules

Without vesting, a co-founder or early employee could receive their full equity grant, leave the company six months later, and still own a significant stake — while doing nothing to build the company's value. Vesting aligns incentives: you earn your equity by staying and contributing.

Vesting also matters for investors. Venture capital firms typically require that founders' shares are subject to vesting as a condition of investment. This protects the VC's capital: if a founder departs, the unvested shares can be bought back at cost or cancelled, preventing the founder from walking away with a large equity stake for minimal work post-investment.

From an accounting perspective, equity-based compensation must be recognized as an expense over the vesting period under ASC 718 (US GAAP) and IFRS 2 (for IFRS reporters). The fair value of the equity grant is spread across the vesting period, impacting your income statement every period.

Standard Vesting Terms: 4 Years with a 1-Year Cliff

The technology and venture capital industry has converged on a set of standard terms. These aren't legal requirements, but they are market practice — departing from them can signal to investors that you don't know what you're doing.

The Four-Year Vesting Period

Most startup equity grants vest over 48 months (4 years). During this period, the employee or founder earns their shares incrementally. The most common vesting schedules are:

• Monthly vesting: 1/48th of the grant vests at the end of each month
• Quarterly vesting: 1/16th of the grant vests at the end of each quarter
• Annual vesting: 25% of the grant vests at the end of each year

Monthly vesting is the most common for stock options because it is the most favorable from a tax perspective for Canadian employees (more on this below).

The 1-Year Cliff

The cliff is a critical concept. On the cliff date (typically 12 months after the grant date), a lump sum of shares vests if the employee has stayed with the company. For a 4-year grant with monthly vesting and a 1-year cliff:

• Months 1–11: Nothing vests. If the employee leaves before the 1-year cliff, they receive zero shares.
• Month 12 (cliff date): 25% of the grant vests immediately (12 months × 1/48th per month = 12/48 = 25%).
• Months 13–48: Remaining shares vest monthly (or quarterly) at 1/48th per month.

The cliff exists to protect the company: if someone leaves before contributing for a full year, they walk away with nothing. This discourages "tourist employees" who join purely to collect equity and leave.

A Worked Example: 40,000-Share Option Grant

Suppose you grant an employee 40,000 stock options on January 1, 2026, with a 4-year vesting schedule, 1-year cliff, and monthly vesting. The exercise price is $1.00 per share.

Vesting Timeline

Date	Months of Service	Cumulative Vested %	Shares Vested	Shares Unvested
Jan 1, 2027 (cliff)	12	25%	10,000	30,000
Apr 1, 2027	15	31.25%	12,500	27,500
Jan 1, 2028	24	50%	20,000	20,000
Jan 1, 2029	36	75%	30,000	10,000
Jan 1, 2030 (fully vested)	48	100%	40,000	0

At the 1-year cliff (January 1, 2027), the employee vests 10,000 shares — exactly 25% of the grant. After that, vesting is monthly: each additional month of service adds 833.33 shares to the vested total (40,000 ÷ 48 = 833.33 per month).

What Happens If Someone Leaves?

When an employee with unvested options leaves the company, the unvested options are typically forfeited (they don't walk away with those shares). However, the employee usually has a window of time — often 30 to 90 days — to exercise their vested options before they expire. This window is called the post-termination exercise period.

Good Leaver vs. Bad Leaver

Many shareholder agreements distinguish between "good leaver" and "bad leaver" provisions, which affect what happens to unvested (and sometimes vested) shares upon departure:

• Good leaver (e.g., resignation, redundancy, retirement, death, disability): Typically keeps vested options and may have an extended exercise window. May also receive accelerated vesting on a portion of unvested shares.
• Bad leaver (e.g., termination for cause, breach of employment agreement): Forfeits all unvested options and may be required to sell back vested shares at a discount to fair market value (or even at cost).

These distinctions matter enormously in practice. A founder who resigns vs. one who is terminated for cause could walk away with very different economic outcomes — even if they own the same number of shares on paper.

Founder Vesting and Reverse Vesting

Founders typically have their shares subject to a vesting schedule from the outset — often the same 4-year term with a 1-year cliff. This is sometimes called reverse vesting because the founders technically own the shares upfront but the company has the right to repurchase unvested shares at the original cost (or a nominal amount) if the founder leaves.

The mechanics of reverse vesting for founders are:

1. Founder receives all shares upfront but signs a share repurchase agreement.
2. Company's right to repurchase lapses as shares vest over time.
3. If founder leaves before vesting is complete, company repurchases unvested shares at cost.

This structure gives founders the psychological benefit of owning all their shares immediately, while protecting the company and co-founders from a founder who contributes little and walks away with a large stake.

Accelerated Vesting: Single and Double Trigger

In M&A scenarios, vesting acceleration becomes critical. Accelerated vesting means that unvested equity vests sooner than the original schedule — typically upon a change of control (acquisition or IPO).

Single-Trigger Acceleration

With single-trigger acceleration, all unvested shares automatically vest upon a liquidity event (acquisition or IPO), regardless of whether the employee is terminated. This is the most employee-friendly approach and is common in founder equity terms.

Double-Trigger Acceleration

With double-trigger acceleration, acceleration requires TWO events: (1) a change of control, AND (2) the employee's termination without cause (or constructive dismissal) following the change of control. This is more common in employment agreements for senior executives and is generally considered more balanced — it protects the acquirer from having every employee immediately vest and leave.

Example: An executive has 60,000 unvested options when the company is acquired. If her employment is terminated without cause 6 months post-acquisition, double-trigger acceleration means those 60,000 options vest on termination. Single-trigger would have vested them at the moment of acquisition.

Vesting and the Accounting Treatment

Under ASC 718 (US GAAP) and IFRS 2, equity-settled share-based payment transactions must be measured at fair value and recognized as compensation expense over the vesting period.

The key accounting steps are:

1. Grant date: Measure the fair value of the equity instruments granted (typically using an option pricing model like Black-Scholes for options, or the company's 409A valuation for RSUs).
2. Vesting period: Recognize compensation expense on a straight-line basis over the vesting period.
3. Forfeitures: If an employee leaves before vesting is complete, reverse previously recognized compensation expense for the forfeited shares.

For our 40,000-share grant example above, if the fair value per option at grant date is $4.00 (based on 409A valuation minus exercise price), the total compensation expense to recognize is:

40,000 shares × $4.00 fair value = $160,000 total compensation expense

This $160,000 would be recognized as follows:

• Year 1: $40,000 (10,000 shares vest at cliff = 25% of total)
• Years 2–4: $40,000 per year ($120,000 total)

For RSUs, the fair value is simply the market price of the shares at grant date, since there is no exercise price. The RSU fair value is recognized as compensation expense over the vesting period, with a credit to equity.

Vesting for Canadian Employees: Tax Considerations

In Canada, the tax treatment of equity compensation depends on whether the employee holds stock options or RSUs, and whether the employer is a Canadian-controlled private corporation (CCPC) or not.

Stock Options — CCPC vs. Non-CCPC

For employees of CCPCs (most Canadian startups), the tax deferral privilege applies: the employee can elect to defer the taxable benefit until the options are exercised, rather than when they vest. The benefit is the difference between the fair market value at exercise and the exercise price. If the employee holds the shares after exercise (rather than selling immediately), the capital gains rules apply on any further appreciation.

For employees of non-CCPCs (e.g., a US parent company), there is no such deferral — the taxable benefit arises at the time of vesting (not exercise). This is a critical distinction for cross-border employees.

RSUs — Employment Income at Vesting

For RSUs, the full fair value of the shares is recognized as employment income at the vesting date, subject to income tax and CPP contributions. There is no tax deferral for RSUs regardless of CCPC status. This creates a meaningful cash flow challenge: employees must pay tax on the RSU value at vesting without having sold the shares to fund the tax bill.

Key Takeaways

• Standard startup vesting is 4 years with a 1-year cliff and monthly vesting thereafter — this is market norm and expected by investors.
• The cliff means zero equity vests until the 1-year anniversary; then 25% vests in a lump sum, followed by monthly vesting of the remainder.
• Unvested equity is typically forfeited on departure; the employee has a window (30–90 days) to exercise vested options.
• Good leaver / bad leaver provisions govern what the departing employee keeps and whether unvested shares accelerate.
• Accelerated vesting (single or double trigger) determines what happens to unvested equity in an acquisition — double trigger is more common and protects acquirers.
• Accounting requires recognition of compensation expense over the vesting period under ASC 718 / IFRS 2.
• Canadian tax rules for equity compensation differ significantly between CCPCs and non-CCPCs, and between stock options and RSUs.

Related Articles

• Journal Entries for Stock-Based Compensation: Stock Options and RSUs — Dr/Cr examples for recording equity compensation expense at grant, vesting, and exercise
• Dilution in Funding Rounds: How Equity Raises Affect Founder and Investor Ownership — How new equity issuances dilute existing shareholders
• 409A Valuation: What Founders and CFOs Need to Know — How fair value is determined for equity compensation
• Tax Treatment of Share-Based Compensation in Canada — Stock options, RSUs, PSU tax rules for Canadian employees
• Accounting for Share-Based Compensation (IFRS 2) — IFRS accounting for equity compensation