Restricted Stock Units (RSUs)

Restricted Stock Units (RSUs) are a form of equity compensation where an employer promises to grant shares of company stock, or their cash equivalent, once a vesting schedule is met. Unlike stock options, employees don't pay anything to receive RSU shares; the only requirement is meeting the vesting conditions, usually continued employment over time.

At grant, an RSU has no tax impact and represents no ownership. Ownership and tax liability both begin at vesting, when the shares are actually delivered. This is a key reason equity compensation can significantly affect an employee's annual base salary comparison, since RSU value doesn't show up until it vests.

How Do RSUs Work?

An RSU grant specifies a number of units and a vesting schedule, commonly four years with a one-year cliff, followed by monthly or quarterly vesting after that. Until a unit vests, the employee holds no stock, no voting rights, and no dividend rights.

Once vested, each unit converts into one share of company stock (or its cash equivalent), which the employee can hold or sell, subject to any company trading windows or blackout periods.

How Are RSUs Different From Stock Options?

Stock options give employees the right to buy shares at a fixed strike price, which only has value if the stock price rises above that price. RSUs carry inherent value at vesting regardless of stock price movement, since no purchase is required.

This makes RSUs simpler to understand and lower risk for employees, which is part of why they've become more common than options at established, publicly traded companies, while options remain more typical at early-stage startups.

How Are RSUs Taxed?

RSUs are taxed as ordinary income at vesting, based on the fair market value of the shares on that date. This differs from ESPP or option taxation, which can be deferred until a later sale. Forbes warns that standard withholding rates often fall short of an employee's actual tax bracket, creating an unpleasant surprise at tax time for anyone with a large vest.

Vesting events also trigger payroll tax withholding, including FICA. Organizations tracking nonqualified deferred compensation plans alongside RSU grants often see similar spikes in reportable wages when large vesting events land in a single pay period, which gross-to-net payroll calculations need to account for. Any gain after vesting, from holding shares before selling, is taxed separately as a capital gain or loss.

What Happens to RSUs If You Leave the Company?

Unvested RSUs are typically forfeited entirely if an employee leaves before the vesting date. Some private companies use double-trigger vesting, which requires both a time condition and a liquidity event, such as an IPO or acquisition, before shares actually vest.

Vested RSUs already delivered as shares are the employee's regardless of departure, since ownership transferred at vesting. Only the unvested portion is at risk when someone leaves.

Why Do Employers Grant RSUs?

RSUs help employers compete for talent without an immediate cash outlay, while giving employees a direct stake in company performance. SHRM reports that companies have increasingly ramped up stock-based compensation, including out-of-cycle RSU grants, specifically to retain employees in competitive hiring markets.

Because vesting events can materially change what an employee takes home in a given period, payroll and total rewards teams should document RSU policy clearly within employee benefits management software and communicate expected vesting dates well in advance.

What Should Employees Know Before Accepting RSUs?

RSU value is entirely tied to a single company's stock, which concentrates financial risk. Indeed advises evaluating an RSU grant's total value and vesting timeline as part of any job offer comparison, not just the headline number quoted at hire.

Employees should also plan for the tax hit at each vesting date. Since vested RSU income shows up alongside regular pay, understanding how it affects net pay for that pay period helps avoid surprises when a large vesting event lands.

Discover how our HR solutions streamline onboarding, boost employee engagement, and simplify HR management

Book Your Free Demo

Frequently Asked Questions

Q: What are Restricted Stock Units (RSUs)?

A: RSUs are a form of equity compensation where an employer promises company shares, delivered once a vesting schedule is completed, typically tied to continued employment.

Q: Do I pay anything to receive RSUs?

A: No. Unlike stock options, employees don't pay to receive RSU shares. The main requirement is meeting the vesting schedule.

Q: When are RSUs taxed?

A: RSUs are taxed as ordinary income at vesting, based on the fair market value of the shares on the vesting date, not at grant.

Q: What happens to unvested RSUs if I leave my job?

A: Unvested RSUs are typically forfeited if you leave before the vesting date. Already-vested shares remain yours regardless of departure.

Q: How are RSUs different from stock options?

A: RSUs carry value at vesting regardless of stock price, since no purchase is required. Stock options only have value if the stock price rises above the strike price.

Q: Can RSUs be paid in cash instead of stock?

A: Some plans allow this, paying the cash equivalent of vested shares instead of issuing actual stock, depending on how the plan is structured.

Q: What is the difference between single-trigger and double-trigger RSUs?

A: Single-trigger RSUs vest based on one condition, usually time. Double-trigger RSUs require both a time condition and a second event, such as an IPO or acquisition, common at private companies.

Q: Should I sell my RSUs as soon as they vest?

A: Many advisors suggest selling at vest to avoid concentrating wealth in a single company's stock, though the right choice depends on individual financial goals and tax situation.

Q: Are RSUs the same as restricted stock awards (RSAs)?

A: No. RSAs transfer actual shares at grant, subject to forfeiture, while RSUs are a promise of future shares with no ownership until vesting.