What Is an RSU?
A Restricted Stock Unit is your company’s promise to deliver actual shares (or sometimes cash) at a future date, provided you meet certain conditions. The keyword here is restricted. At the time of grant, you don’t own stock. You have the right to receive stock later, once vesting requirements are satisfied.
Think of it like a rain check that becomes the real thing when the time is right. If you leave before meeting those conditions, the unvested portion disappears. Once units vest and shares land in your account, you become a shareholder with all the usual rights.
Key Point: An RSU is not stock at the time of grant. It becomes stock only after vesting.
How RSUs Differ From Other Types of Equity Compensation
Understanding RSUs becomes easier when you see how they compare to other equity awards.
RSUs vs. Restricted Stock Awards (RSAs)
RSAs look similar but work differently. With RSAs, shares are issued upfront. You technically own them immediately, but they remain subject to forfeiture until vesting. Because the shares exist at grant, RSA recipients may file an 83(b) election within 30 days, choosing to pay ordinary income tax on the grant-date value. RSUs don’t qualify for an 83(b) election because no shares exist at grant. This is an important distinction when comparing offers or considering tax strategies.
RSUs vs. Stock Options (ISOs and NSOs)
Stock options give you the right (but not the obligation) to purchase shares at a predetermined strike price. If the market price rises above the strike price, the option has value. If not, the option may expire worthless. RSUs, by contrast, generally retain value at vesting when the underlying stock has value. No purchase is required. The tradeoff is that options can deliver greater upside in high-growth scenarios where the stock price climbs significantly.
Bottom Line: RSUs are generally less complex than stock options.
How RSUs Vest: Understanding the Requirements
Vesting determines when you earn the right to receive your shares. Until vesting occurs, units remain at risk of forfeiture. Common structures include:
Time-Based Vesting
This is the most common structure. A typical four-year vest with a one-year cliff means you must remain employed for one full year to receive the first portion. After that cliff, the remaining shares vest monthly or quarterly. Leave before the cliff? Nothing vests.
Performance-Based Vesting
Some companies tie vesting to performance metrics such as revenue targets, profitability milestones, product launches, or the completion of an IPO or acquisition. These structures appear more frequently in private companies and executive compensation packages.
Double-Trigger Vesting
Private companies often use double-trigger RSUs requiring two conditions: time-based service and a liquidity event (IPO or acquisition). You could be fully time-vested but unable to receive shares until the second trigger occurs. Leaving before the liquidity event may result in forfeiture of those units.
Vesting vs. Settlement: Why It Matters
Vesting means you’ve earned the shares. Settlement means the shares are actually delivered to your brokerage account. Some companies settle shares immediately upon vesting, while others follow a quarterly schedule. Taxes are generally triggered at settlement, not vesting. Your holding period for capital gains purposes also begins at settlement.
What Happens If You Leave the Company?
- Vested and settled shares are yours to keep.
- Vested but unsettled shares may still be delivered at the next settlement date, depending on your plan.
- Unvested RSUs are typically forfeited when employment ends.
- For private-company double-trigger RSUs, time-vested shares may still be forfeited if the liquidity event has not occurred before you leave.
Retirement, Disability, and Death
Many plans offer special provisions for accelerated vesting in these situations. The specifics vary and should be reviewed in your plan documents.
After Vesting: What Comes Next?
Once shares land in your account, you’ll need to consider tax impact, whether withholding was sufficient, and whether to hold or sell the shares. It’s also important to evaluate concentration risk and how these shares fit into your overall financial plan.
