Vesting Schedule: Types, Examples, and How It Affects Your Equity Compensation

A vesting schedule is the timeline that determines when you earn the equity your employer granted you. Until shares or options vest, they belong to the company, not to you. Most tech companies use a 4-year schedule with a 1-year cliff.

The vesting schedule is designed to incentivize you to stay with the company over a period of time, gradually transferring ownership as you complete service milestones.

Understanding your vesting schedule is essential for financial planning, tax optimization, and making informed decisions about job changes.

Types of Vesting Schedules

Time-Based Vesting

The most common type. Equity vests based solely on your continued employment over a specified period.

Standard 4-Year Schedule with 1-Year Cliff:

This is the default schedule at most tech companies and startups.

Milestone-Based Vesting

Equity vests when specific performance or business milestones are achieved, rather than time served. Examples include:

• Hitting revenue targets
• Completing a product launch
• Achieving specific KPIs
• Company reaching a certain valuation or funding round

Milestone-based vesting is less common and is more typical in executive compensation packages or early-stage startups.

Hybrid Vesting

Combines time-based and milestone-based elements. For example:

• 50% vests on a standard time schedule
• 50% vests upon achieving performance goals

Or the increasingly common "double trigger" used by private companies for RSUs:

• Trigger 1: Time-based vesting (standard schedule)
• Trigger 2: Liquidity event (IPO or acquisition)
• Shares only deliver when both triggers are satisfied

Common Vesting Structures Compared

Vesting Frequency After Cliff

Once past the cliff, how frequently shares vest varies by company:

Monthly vesting creates the smoothest income stream but requires tracking many tax lots. Annual vesting creates larger, less frequent taxable events but is simpler to manage.

Vesting and Tax Withholding Planning

Your vesting frequency directly affects how you should plan for tax withholding shortfalls. The federal supplemental withholding rate of 22% is almost always insufficient for employees in the 32%+ brackets, but the magnitude and timing of the shortfall varies with how often you vest.

• Monthly vesting (Google): 12 small taxable events per year. Each individual event has a small per-event shortfall, but the shortfall compounds over 12 months. Annual total shortfall can still reach $5,000-$15,000 depending on your bracket and total RSU income. The advantage: shortfalls are predictable and steady.
• Quarterly vesting (Meta, Microsoft): 4 moderate events per year. Each event is larger, so the per-event shortfall is more noticeable. Easier to track than monthly, but the timing of vests relative to estimated tax payment deadlines matters.
• Annual or cliff vesting: 1-2 large events per year. This creates the biggest per-event withholding gap because the 22% supplemental rate is furthest from your actual 32-37% marginal bracket on a large lump-sum. A single cliff vest can produce a $20,000-$50,000+ shortfall.

W-4 strategy by vesting frequency:

If you vest monthly, increase your W-4 additional withholding amount by your expected annual RSU shortfall divided by the number of paychecks remaining in the year. For example, if you expect a $12,000 annual shortfall and are paid biweekly (26 pay periods), add $462 per paycheck in additional withholding. If you vest annually or at a cliff, it is often simpler to make a single large estimated tax payment (Form 1040-ES) in the quarter when the vest occurs to avoid an underpayment penalty.

For step-by-step guidance on closing the withholding gap, see our RSU tax withholding guide and quarterly estimated tax guide.

Real Company Examples

Google: Monthly Vesting

Google RSUs vest monthly after a 1-year cliff. After the cliff, shares vest on the 1st of each month. This provides a steady stream of income but creates 12 separate tax events per year.

For the full breakdown, see our Google RSU guide.

Amazon: Back-Loaded Vesting

Amazon's 5/15/40/40 schedule is unique in tech. Only 5% vests in Year 1, with 40% each in Years 3 and 4. Amazon compensates with large signing bonuses in Years 1-2.

This creates dramatic tax planning challenges in Years 3-4 when the bulk of equity income arrives. See our Amazon RSU guide.

Startup Standard: 4-Year with 1-Year Cliff

Most startups grant stock options (ISOs or NSOs) on a 4-year schedule with a 1-year cliff and monthly vesting afterward. The key difference from public company RSUs: with options, vesting gives you the right to exercise — not immediate income. You choose when (and if) to exercise.

This makes timing critical for tax planning, especially for ISOs where the spread at exercise is an AMT preference item. Use our ISO AMT calculator to find your optimal exercise strategy.

The chart below compares how different exercise-timing strategies affect your tax outcome on vested options.

How Vesting Affects Your Taxes

The tax impact of vesting depends on your equity type:

RSUs: Taxed at Each Vest

Every vesting event is a taxable event. The FMV of vesting shares becomes W-2 ordinary income.

Annual tax impact of different vesting frequencies (1,000 RSUs at $200/share over 4 years):

The annual total is the same ($50,000/year), but the timing affects withholding calculations and cash flow. Monthly vesting is slightly more tax-efficient because income is spread more evenly, reducing the chance of any single event pushing you into a higher bracket.

The chart below shows how the effective tax rate on vested RSU income changes across income levels.

Stock Options: Taxed at Exercise (Not Vest)

For stock options, vesting gives you the right to exercise — the tax event happens when you actually exercise. This gives you control over timing, which is a significant planning advantage.

• ISOs: No regular tax at exercise, but spread is AMT preference item. See our guide on estimated taxes on ISO exercise.
• NSOs: Ordinary income tax on spread at exercise.

Acceleration Clauses

Vesting schedules may include provisions that speed up vesting under certain circumstances:

Single Trigger Acceleration

All (or a portion of) unvested equity vests immediately upon a single event, typically:

• Company acquisition/merger
• Change of control
• IPO (less common)

Double Trigger Acceleration

Vesting accelerates only when two conditions are met:

1. A change of control (acquisition, merger)
2. Involuntary termination or resignation for good reason within 12-24 months

Double trigger is more employee-friendly in practice because it protects you from being let go after an acquisition while your equity is still unvested.

Tax impact of acceleration: When acceleration triggers, it creates a single large vesting event. If 2 years of unvested RSUs accelerate at once, the tax impact is equivalent to a massive cliff vest — potentially hundreds of thousands of dollars of ordinary income hitting your W-2 on a single day. Plan for the withholding shortfall the same way you would for any large cliff vest.

Double-trigger acceleration is more common than single-trigger because it protects the acquiring company. With single-trigger, all employees' equity vests at the acquisition closing, giving them no financial reason to stay and help with the transition. Double-trigger keeps employees incentivized to remain through the integration period.

Vesting During Leave of Absence

A common question for employees taking extended time away from work: does equity continue vesting during leave?

• Paid leave (maternity/paternity, short-term disability): Almost always yes. Your employment status is unchanged, so vesting continues on the normal schedule. The vest-date FMV still determines your taxable income, so you may owe tax on shares that vest while you are on leave.
• Unpaid leave (personal sabbatical, extended FMLA): Company policy varies significantly. Some companies pause vesting during unpaid leave and extend the total vesting period by the duration of the leave. Others continue vesting regardless of pay status. The difference can be worth tens of thousands of dollars.
• Performance-based vesting: May be affected by leave. If your equity includes performance milestones that cannot be met during your absence — such as individual performance ratings or project completion targets — those tranches may be delayed or forfeited.

Always check your grant agreement for the specific vesting continuation policy. It is specified in the equity plan documents, not in general HR policies. If your company uses an equity management platform such as Carta, Shareworks, or Pulley, the platform typically shows your actual vest dates including any adjustments for leave.

Milestone-Based and Hybrid Vesting

Not all vesting is purely time-based. Some equity grants include performance or milestone components:

• Milestone vesting: Equity vests when specific company events are achieved — revenue targets, product launches, regulatory approvals, or IPO. This is common in executive compensation packages and early-stage startup grants. The risk: if the milestone is never reached, the equity never vests. Unlike time-based vesting, there is no guaranteed payout for simply showing up.
• Hybrid vesting: Combines time and milestone components. A typical structure might be 50% time-based (4-year cliff schedule) and 50% upon achieving a company milestone such as IPO. This guarantees partial vesting for tenure while adding an incentive tied to company performance.
• Performance vesting: Tied to individual performance ratings rather than company events. Some companies, particularly in finance, grant RSUs that only vest if you meet specific performance thresholds. Below-threshold performance in a given year can result in partial or zero vesting for that tranche.

Performance and milestone-based vesting adds uncertainty to your compensation. When evaluating an offer that includes non-time-based vesting, discount the performance-contingent portion appropriately — it is not guaranteed income in the way that standard time-based RSUs are.

Vesting and IPO Lock-Up Periods

For employees at private companies going public, your vesting schedule intersects with the IPO lock-up period in important ways:

1. Shares that vest before the IPO are owned but cannot be sold during the lock-up (typically 90-180 days post-IPO)
2. Shares that vest during the lock-up create a tax liability with no liquidity to pay it
3. Double-trigger RSUs that vest at IPO can create a massive single-day tax event

Our IPO lock-up calculator helps you model the tax timeline and liquidity gap for these scenarios.

Negotiating Your Vesting Schedule

Elements that may be negotiable, especially for senior hires:

Frequently Asked Questions

What is the most common vesting schedule?

The standard in tech is a 4-year vesting schedule with a 1-year cliff, followed by monthly or quarterly vesting. This applies to both stock options at startups and RSUs at public companies.

What happens to unvested equity if I get laid off?

Unvested equity is typically forfeited upon termination — whether voluntary or involuntary. However, if your grant includes acceleration provisions (especially double trigger), an involuntary termination after an acquisition may accelerate some or all unvested shares.

Can I vest faster than the schedule?

Only if your grant agreement includes acceleration provisions or if you negotiate accelerated vesting. Some companies offer early exercise for stock options (exercising before vesting), which is different from accelerated vesting — see our 83(b) election guide for how this works.

How do refresh grants interact with my original vesting schedule?

Each refresh grant has its own independent vesting schedule. After 2-3 years, you may have multiple grants vesting simultaneously, which increases your annual equity income. This "stacking" effect is important for tax planning — model the combined impact with our RSU calculator.

What is a "golden handcuffs" effect?

When large amounts of unvested equity create a financial incentive to stay at a company even if you would otherwise want to leave. The closer you are to a major vesting event (like a cliff or a back-loaded Year 3 at Amazon), the stronger the handcuffs. Calculate the exact dollar value at stake before making a job-change decision.