A vesting schedule determines when an employee earns a nonforfeitable right to an equity award. Cliff vesting applies a single milestone before any portion vests, while graded vesting releases portions over time. Many startup grants combine both structures, using a one-year cliff followed by monthly or quarterly vesting.

Key Takeaways

• Vesting does not always mean immediate share ownership: vested options become exercisable, while vested RSUs may settle in shares or cash under separate rules.

• Pure cliff vesting releases the covered award at one milestone; graded vesting releases it in installments.

• A four-year schedule with a one-year cliff is a hybrid: 25% often vests at the first anniversary, followed by monthly or quarterly vesting.

• Employees who leave generally forfeit unvested awards, while vested options may remain exercisable only for a limited post-termination period.

• Vesting, exercise, settlement, tax, transferability, and liquidity are separate events.

What Is a Vesting Schedule?

A vesting schedule sets the conditions under which an equity award becomes nonforfeitable. Time-based schedules depend on continued service. Performance-based schedules depend on business or individual goals. Some grants require both.

The word “vesting” does not produce the same result for every award:

• A vested stock option is generally eligible to be exercised, but the employee does not own the underlying shares until exercise.

• A vested restricted stock unit (RSU) represents an earned contractual benefit, but settlement may occur at vesting or later.

• Restricted stock may be issued at grant while remaining subject to the company’s repurchase or forfeiture right until it vests.

• A cash-settled award may vest without ever delivering shares.

This distinction prevents a common mistake: treating the grant date, vesting date, exercise date, settlement date, and sale date as one event.

Cliff Vesting vs. Graded Vesting

Cliff vesting requires the employee to reach a stated milestone before any covered portion vests. Graded vesting releases the award in installments across the vesting period.

Neither structure is universally better. A cliff can be simple and strengthen early retention, while graded vesting reduces the all-or-nothing effect after each installment.

Can One Grant Use Both Methods?

Yes. The common four-year schedule with a one-year cliff combines cliff and graded vesting. The first portion vests at the cliff, and the rest vests incrementally.

How Does a Four-Year Schedule With a One-Year Cliff Work?

Consider a grant of 48,000 options that vests over four years. Under one common design, 25% vests after 12 months and the remaining 75% vests monthly over the next 36 months.

This example is illustrative, not a universal rule. Some companies vest quarterly, use different cliffs, credit prior service, or apply separate schedules to each grant. The award agreement and equity plan control.

Does the Cliff Reset for Every Grant?

It can. A new-hire grant and a later refresh grant may have separate vesting commencement dates and schedules. Employees should not assume that reaching the cliff on one award accelerates another.

What Happens When Employment Ends?

Unvested awards are generally forfeited when service ends, unless the plan or agreement provides acceleration or another exception. The treatment of vested awards depends on the instrument.

Employees should check the definition of termination, the treatment of resignation versus dismissal, and whether leave, disability, death, or retirement changes the result.

What Is a Post-Termination Exercise Window?

Vested options do not necessarily remain available until their original expiration date after employment ends. The plan may provide a shorter period—sometimes measured in months—to exercise vested options. Missing the deadline can cause them to expire.

The tax classification of an incentive stock option can also change if it is exercised outside the applicable statutory period. Employees should obtain advice based on their grant and jurisdiction.

How Does Vesting Differ for Options, RSUs, and Restricted Stock?

The economic value of a vested award depends on what the employee must do next.

Stock Options

Vesting generally makes an option exercisable. The employee must decide whether to pay the exercise price and any taxes to acquire shares. If the current share value does not exceed the exercise price—or if the shares are illiquid—exercise may still involve substantial risk.

Restricted Stock Units

RSUs do not require an exercise payment. Once the vesting and settlement conditions are satisfied, the company delivers shares, cash, or a combination stated in the plan. Private-company RSUs may use a double-trigger structure that requires both service-based vesting and a liquidity event before settlement.

Restricted Stock

Restricted stock can involve actual shares issued near the grant date, subject to forfeiture or repurchase until vesting. Because property may be transferred before it vests, Section 83(b) may be relevant in some cases. An 83(b) election is generally not used for standard RSUs because no property is transferred at grant.

Understanding the capitalization table helps employees distinguish authorized awards, outstanding options, issued shares, and fully diluted ownership.

What Are Single-Trigger and Double-Trigger Acceleration?

Acceleration allows some or all unvested equity to vest earlier than the regular schedule.

• Single-trigger acceleration requires one event, often a change in control.

• Double-trigger acceleration requires two events, commonly a change in control followed by a qualifying termination within a stated period.

Acceleration is contractual, not automatic. The agreement should define the triggering transaction, qualifying termination, accelerated percentage, and interaction with any replacement award.

Double-trigger provisions can protect employees after an acquisition while reducing the risk that all retention incentives disappear at closing.

Does Vesting Make Private Shares Liquid?

No. Vesting determines whether an award is earned; liquidity determines whether an owner can sell the resulting shares. A private-company employee may hold fully vested and exercised shares but still face company consent, a right of first refusal, securities-law limits, or no available buyer.

The private-share transfer process can therefore matter long after vesting. Employees should also separate a company’s latest valuation estimate from an executable sale price.

Does an IPO Guarantee Immediate Liquidity?

No. An IPO may create a public market, but employee shares can remain subject to lockups, trading windows, company policies, and securities laws. A public listing is also uncertain until it occurs.

These limits are part of the broader risk profile of private-company equity.

How Does Vesting Affect Taxes?

Tax treatment depends on the award, the relevant dates, and the employee’s jurisdiction.

• Nonqualified stock options: Tax commonly arises at exercise based on the spread between fair market value and the exercise price.

• Incentive stock options: Exercise may create alternative minimum tax consequences, while sale timing affects qualification for favorable treatment.

• RSUs: Ordinary income generally arises when shares or cash are delivered, subject to the plan and deferred-compensation rules.

• Restricted stock: Tax may arise at vesting unless a valid Section 83(b) election was made after the property transfer.

Private-company values may rely on periodic appraisals rather than market quotes. Employees should understand the date and purpose of the company’s valuation and review the limits of private-company financial information.

Tax rules are technical and can change by jurisdiction. Employees should consult a qualified adviser before exercising options, filing an election, or selling shares.

What Should Employees Review Before Accepting an Equity Grant?

The headline number of options or units is not enough. Employees should review:

• the type of award and number of units;

• the vesting commencement date;

• cliff length and installment frequency;

• exercise price and expiration date for options;

• settlement conditions for RSUs;

• performance targets and who determines whether they were met;

• treatment of leave, termination, disability, death, or retirement;

• post-termination exercise deadlines;

• acceleration provisions;

• transfer restrictions and liquidity limitations;

• tax withholding and election requirements;

• the fully diluted share count needed to estimate ownership percentage.

A grant summary may omit important conditions. The equity plan and award agreement should be read together.

FAQ

What is a vesting schedule?

A vesting schedule defines when an employee earns a nonforfeitable right to an equity award. It may depend on time, performance, or both.

What happens if an employee leaves before the cliff?

The employee generally forfeits the portion covered by the cliff, subject to the plan, award agreement, and any acceleration provision.

Is a four-year schedule with a one-year cliff cliff vesting or graded vesting?

It is usually a hybrid. The first portion vests at the one-year cliff, and the remaining award vests in monthly, quarterly, or other installments.

Do vested options mean the employee owns shares?

No. Vested options are generally exercisable rights. The employee becomes a shareholder only after a valid exercise and issuance or transfer of the underlying shares.

Conclusion

A vesting schedule explains when an equity award is earned, but it does not answer every ownership question. Employees must also understand exercise, settlement, tax, transfer, and liquidity rules. Reading the full plan and award agreement turns a headline grant into a realistic picture of what the compensation may deliver.