Restricted Stock Units at a Private Company: When Does the Tax Bill Arrive?

The short version

A private-company award can be described as vested while stock delivery, federal income tax, payroll taxes, and an opportunity to sell follow different timelines. The award’s legal terms matter more than a dashboard label. Sheepdog Tax reviews those timelines together so the employee can see the expected income, available cash, and documents needed before the company settles the award.

A unit is a promise; a share is property

Internal Revenue Code section 83 governs property transferred for services. A restricted stock unit, or RSU, ordinarily begins as an unfunded, unsecured promise to pay cash or deliver stock later. Treasury regulation 1.83-3(e) excludes that kind of promise from property for section 83. Granting the unit is therefore different from transferring an actual share.

When an ordinary stock-settled RSU delivers fully vested shares, their value generally enters compensation income under section 83, less any amount paid. A valid statutory deferral or another applicable rule can change that result. The Firm therefore checks the grant, service conditions, payment conditions, stock-delivery date, and whether the arrangement complies with the deferred-compensation rules before naming the inclusion year.

Some plans use both a service condition and a specified liquidity condition. These terms must be read in the actual agreement. Completing service is not proof that a sale is available, and a trading restriction does not automatically postpone tax on stock that has already been transferred and become substantially vested. Section 83(a) and (c)

An initial public offering, or IPO, is not a universal tax trigger for all equity. It can matter because of a particular award’s settlement terms or because it ends a qualifying deferral. The analysis should not start by assigning an assumed offering date to a named company.

Why the settlement terms need review before a change

Section 409A governs many arrangements that defer compensation. Treasury regulation 1.409A-1(b) includes exceptions, including the short-term-deferral rules, but those exceptions have conditions. An RSU label alone does not establish either compliance or an exception.

A noncompliant arrangement can cause income inclusion before the expected payment and additional federal tax. The Firm reviews whether the award is exempt or compliant and coordinates unresolved plan-design questions with counsel. A request to change the settlement date should be reviewed before the company acts, not assumed to be a routine tax-timing election.

Payroll taxes need their own timeline. For arrangements subject to section 3121(v)(2), the special rule generally takes deferred compensation into account for Social Security and Medicare tax purposes at the later of performance of the services or lapse of the substantial risk of forfeiture. That can differ from federal income-tax inclusion. The Firm reconciles the employer’s payroll treatment rather than assuming all taxes wait for a share sale.

Section 83(i) is a narrow deferral, not a general five-year choice

Section 83(i) can allow eligible employees to defer federal income inclusion on qualified stock received from an option exercise or RSU settlement. It requires more than employment at a private company. Internal Revenue Service (IRS) Notice 2018-97 explains the employer plan, employee, withholding, and election requirements.

The corporation must satisfy the eligible-corporation rules, including the absence of publicly tradable stock during preceding calendar years and a qualifying written plan. The coverage test generally requires grants to at least 80% of the relevant U.S. employee population during the applicable calendar year, with statutory exclusions. Option grants and RSU grants cannot simply be combined to reach that threshold. The rights-and-privileges requirements also need review.

Excluded employees include statutory 1% owners, current or former chief executive officers and chief financial officers, specified family members of those officers, and certain highly compensated officers. The ownership and compensation tests include lookback periods. The Firm verifies the actual categories rather than relying on job titles or a simplified ownership percentage.

Qualified stock and the election itself have additional limits, including cash-or-repurchase rights and certain employer stock repurchases. The employee must satisfy the withholding requirements; Notice 2018-97 describes the escrow arrangement. This is a coordinated employer-and-employee process, not a form an employee can assume will work independently of the plan.

The numbers that limit the deferral

Scroll the table sideways to read all columns, including sources.

Requirement	Number or timing	Scope	Primary source
Maximum potential deferral	5 years	Counted from the earlier transferability or lapse-of-forfeiture date for the qualified stock; specified events end it sooner	Section 83(i)(1)
Employer coverage threshold	At least 80%	Relevant U.S. employees, with statutory exclusions, tested for the applicable calendar year	Notice 2018-97, III.A
Election period	No later than 30 days	After the earlier transferability or lapse-of-forfeiture date	Section 83(i)(4)
Highly compensated officer exclusion	4 highest compensated officers	Current taxable year or any of the 10 preceding taxable years	Section 83(i)(3)(B)(iv)

The five-year endpoint is a maximum, not a promise. Earlier inclusion can follow transferability, becoming an excluded employee, any stock of the issuer becoming readily tradable on an established securities market, or revoking the election. A public listing can therefore end the deferral before the five years expire. Section 83(i)(1)(B)

The deferred compensation amount is based on the value fixed under the original inclusion rules, not a lower value selected when the deferral ends. The employer’s required notice expressly addresses that downside. Section 83(i) also does not provide a general deferral of Social Security and Medicare taxes. Notice 2018-97, II.F and III.B

An 83(b) election is not a substitute. An ordinary RSU grant is not transferred property, and section 83(i) concerns eligible stock received at settlement. The two elections solve different problems and are not interchangeable. Section 83(b) and (i); regulation 1.83-3(e)

A hypothetical settlement without an available sale

Assume an employee’s award settles in 2,000 fully vested shares worth $40 each. The employee paid nothing. Assume the arrangement is compliant or exempt under section 409A, no section 83(i) election applies, and no other rule changes inclusion. These are invented facts and amounts, not an issuer’s program or a client result.

The compensation starting point is $80,000. If only 1,300 shares reach the employee’s account because 700 shares are retained under a valid net-settlement arrangement to fund withholding, the modeled share values are $52,000 retained and $28,000 applied toward taxes. Those assumed withholding figures are not statutory rates or a conclusion that $28,000 pays the final liability. The gross compensation calculation still begins with the 2,000 shares. Section 83(a)

The Firm reconciles the employer’s actual withholding and share records, then projects the complete return. Publication 505 explains why withholding and estimated payments may not cover the final liability. If the retained shares cannot be sold, the remaining tax reserve must come from another available source. A lower later share value does not retroactively change the settlement-date compensation merely because the employee held the shares.

What the review should produce

The useful deliverable is an award-by-award schedule connecting the legal conditions, expected stock delivery, federal income inclusion, payroll treatment, withholding mechanism, and possible sale. Sheepdog Tax also identifies what remains unconfirmed with the employer and models a settlement-date change only within the legal terms that actually permit it.

How Sheepdog Tax can help

Request an RSU settlement and cash-reserve review before a scheduled delivery or proposed liquidity event. Sheepdog Tax can read the award terms, assess the tax-timing questions, evaluate whether section 83(i) warrants employer coordination, reconcile withholding, and prepare federal and applicable state projections under the engagement.

Contact noah@sheepdogtax.com. Sheepdog Tax is a veteran-owned practice led by Noah Green, Certified Public Accountant (CPA) and Certified Fraud Examiner (CFE). The review does not guarantee deferral eligibility, tax savings, a public offering, or access to a buyer.

Sources

Prepared by Noah Green, CPA, CFE, for Sheepdog Tax.