Restricted Stock and RSUs for Software Engineers: What Actually Vests

Restricted stock and restricted stock units sound like they should be the same thing. They are not. That distinction matters because it changes what you own, when income is recognized, whether an 83(b) election is relevant, and how much cash you need ready when the award vests or settles.

This guide is for U.S.-based software engineers evaluating an offer or a grant. It is not individualized tax, legal, or investment advice. Your plan documents, employer reporting, state of residence, and work location can all change the answer.

Restricted Stock Is Property; An RSU Is Usually A Promise

With restricted stock, the company transfers actual shares that are subject to a substantial risk of forfeiture or transfer restrictions. You may have shareholder rights before vesting, depending on the plan. If you leave before the restrictions lapse, the company can generally repurchase or reclaim the unvested shares.

With an RSU, the company generally promises to deliver shares or cash after you meet vesting conditions. You normally do not own stock or have voting rights until settlement. The company may pay dividend equivalents, but those are plan terms rather than proof that you already own the shares.

Do not use an option's vocabulary for either one. There is normally no exercise price for restricted stock or RSUs. You are not buying shares at vesting; the taxable value is generally tied to the shares delivered or the restricted shares that become substantially vested.

The Timeline You Need To Map

A grant letter can contain four different dates:

1. Grant date: when the award is issued.
2. Vesting date: when you satisfy service or performance conditions and the risk of forfeiture lapses.
3. Settlement date: when an RSU converts into shares or cash. It may be the vesting date or later, depending on the plan.
4. Sale date: when you sell public-company shares or otherwise obtain liquidity.

For an RSU, vesting and settlement are commonly close together, but never assume they are identical. A delayed settlement can affect tax timing, trading-window planning, and your ability to sell. For restricted stock, the substantial-vesting date is usually the important default tax event unless a timely 83(b) election changes it.

What Happens At Vesting Or Settlement

RSU settlement and vested restricted stock are generally compensation income, not a capital gain. For employees, the amount is generally reported as wages on Form W-2 and is subject to applicable withholding. The IRS describes restricted stock and RSUs as equity compensation that is generally subject to federal income tax withholding in its 2024 guidance.

That is why a vest can feel like a cash bonus that arrived as stock. You receive shares with a value, the company withholds taxes somehow, and you decide whether to keep the remaining shares. Once the shares are yours, future movement in the price is normally a separate investment gain or loss, with its own holding-period rules.

Understand The Withholding Method

Ask which of these your employer uses:

• Sell to cover: the broker sells enough shares to fund withholding.
• Net settlement: the company keeps a number of shares for withholding and delivers the rest.
• Cash payment: you pay withholding from cash, which is less common but can matter for private-company shares.

Withholding is not necessarily your final tax liability. A flat supplemental wage withholding rate can be lower than your marginal rate, and state taxes add another variable. Keep the vest statement, W-2, broker confirmation, and cost basis records together; reconstructing them years later is unnecessarily painful.

The 83(b) Election: Important, Narrow, And Time-Sensitive

An 83(b) election may be available when you receive actual restricted stock that is not yet substantially vested. It generally elects to include the value at transfer in income now rather than waiting for vesting. The election must be filed within 30 days after the property transfer; there is no ordinary extension just because the paperwork was confusing. The IRS explains the rule in Publication 525.

The potential appeal is straightforward: if the shares have little value when granted and later become valuable, recognizing income early may start the capital-gains holding period and reduce later ordinary income. The risk is just as straightforward: if you leave and forfeit the shares, or the value collapses, you may have paid tax on value you never realize.

An 83(b) election generally does not apply to an RSU because no property has been transferred at grant. If someone tells you to file one for RSUs without reading the agreement, that is a reason to slow down and get professional advice.

A Decision Checklist Before You Accept Or Hold

For each grant, answer these questions in writing:

• Is it restricted stock or an RSU? Does the agreement say shares, units, or both?
• What must happen for it to vest: time, performance, a liquidity event, or all of the above?
• Are vested RSUs settled immediately? If not, when?
• How are taxes withheld, and can you cover any shortfall from cash?
• Is the company public? If it is private, what liquidity path actually exists?
• What percentage of your net worth will remain in employer stock after each vest?
• If it is restricted stock, is an 83(b) election even available, and have you discussed the downside with a qualified adviser before the 30-day deadline?

The last two questions matter because your job already exposes you to company risk. Keeping every share after it vests is an active investment decision, not a neutral default.

Example: A Public-Company RSU Vest

Suppose 100 RSUs settle when the stock trades at $200. The $20,000 value is generally wage income. If the company retains 30 shares for withholding, you receive 70 shares. The 70 shares are not "free" in the sense of being tax-free; the tax was funded with part of the award. If you keep them and the price later falls to $150, you still had $20,000 of compensation income at settlement, while the later price change affects the separate investment position.

The point is not to make a universal sell recommendation. It is to make the moment of choice visible: after settlement, you have a concentrated stock position and should deliberately decide how much to retain.

Common Mistakes

• Calling RSUs options and looking for an exercise price that does not exist.
• Treating a tax withholding rate as a final tax estimate.
• Missing the 30-day 83(b) deadline because the grant paperwork arrived late.
• Filing an 83(b) election for an RSU rather than actual restricted stock.
• Ignoring settlement timing and trading-window restrictions.
• Holding every vested share by default while salary and career already depend on the same company.

Where This Fits In Your Offer

Equity Compensation for Software Engineers is the starting point for comparing the entire offer. If the award is a contractual payout rather than shares or units, read Phantom Stock for Software Engineers instead.

The right outcome is not a clever tax maneuver. It is a grant you understand, with enough cash and records to handle the tax event and a conscious limit on how much of your financial life rides on one employer.