Should You Defer Your RSUs? 2026 Tax & Risk Guide

If your compensation statement gives you an RSU deferral election, the real question is not simply “Can I push the tax bill into a later year?” It is whether the future tax savings are valuable enough to justify giving up liquidity, accepting your employer’s plan rules, and potentially becoming an unsecured creditor for money you already earned.

For the right executive, deferring restricted stock units can be useful. For the wrong one, it can turn a simple stock award into an inflexible tax and cash-flow problem. I’ve spent decades guiding high-income professionals through decisions like this, and one mistake I would avoid is treating “lower taxes later” as the whole analysis.

Quick Answer

You should consider deferring RSUs only when your employer’s plan actually permits the election, the Section 409A timing rules are satisfied, and the specific payout schedule fits your future income plan. A lower expected marginal tax rate helps, but there is no universal 13-point, 15-point, or other magic tax-bracket threshold that makes deferral automatically worthwhile. Employer-credit risk, liquidity, company-stock concentration, state-tax sourcing, Medicare IRMAA, and the plan’s distribution rules can all change the answer.

Can You Actually Defer Your RSUs?

First separate two ideas that often get mashed together. A standard RSU is a promise by your employer to deliver shares or cash after you satisfy the vesting conditions. An elective RSU deferral is a plan feature that lets an eligible employee delay settlement or payment beyond the normal date, generally under nonqualified deferred compensation rules.

You cannot create that option yourself after the fact. Your employer’s written plan controls whether deferral is available, how much can be deferred, whether the value can later be diversified into notional investment choices, which payment dates are allowed, and what happens when you retire, quit, are terminated, die, become disabled, or the company changes control.

Start With the Plan Document

Before you model tax savings, get the actual plan document and election materials. If you do not know the distribution options, creditor treatment, investment or diversification choices, and election deadline, you do not yet have enough information to decide whether deferral is attractive.

What Gets Taxed at Vesting vs. Settlement?

The most important technical distinction is that income-tax timing and employment-tax timing can be different in a compliant nonqualified deferred compensation arrangement.

The IRS’s 2026 Employer’s Supplemental Tax Guide explains that Section 409A allows income-tax deferral only when the plan satisfies its election and distribution requirements. Separately, the special FICA timing rule generally takes deferred compensation into account for Social Security and Medicare taxes at the later of when the services are performed or when the employee’s right is no longer subject to a substantial risk of forfeiture.

RSU deferral: the tax timing to separate
Event	What generally happens	Why it matters
Grant	Usually no current federal income tax merely because an RSU is granted.	You normally have a contractual award, not freely owned stock.
Vesting / lapse of forfeiture risk	Employment-tax timing can occur here for deferred compensation under the special FICA timing rule.	You can owe payroll tax before receiving the deferred shares or cash.
Settlement / payment	A compliant elective deferral can postpone federal income inclusion until the permitted payment event.	This is where the potential income-tax timing benefit comes from.

For 2026, the Social Security wage base is $184,500. Social Security tax stops after wages reach that annual base, while the 1.45% Medicare tax has no wage cap. The IRS says the 0.9% Additional Medicare Tax applies above the statutory thresholds—$200,000 for single and head-of-household filers and $250,000 for married couples filing jointly—although employer withholding starts once one employee’s Medicare wages exceed $200,000 regardless of filing status.

Michael’s Take

Do not say “I’m deferring the taxes” as if every tax disappears until retirement. Ask two separate questions: When do payroll taxes hit? and when does federal income become taxable? That distinction changes the cash you need at vesting.

Section 409A: Election Deadlines You Cannot Treat Casually

Elective RSU deferral is usually not a “decide later” strategy. Treasury Regulation §1.409A-2 generally requires an employee’s initial deferral election before the start of the service year to which the compensation relates, unless a specific exception applies.

Important exceptions include a 30-day election window in a first year of plan eligibility for compensation earned after the election; a 30-day rule for certain forfeitable rights when at least 12 additional months of service are required; and a later deadline for qualifying performance-based compensation, generally no later than six months before the end of the performance period while the outcome is not yet readily ascertainable.

Those are federal 409A boundaries, not a promise that your employer must offer every exception. Your plan can be narrower. That is why “the IRS allows it” and “my plan allows me to elect it” are two different questions.

The Six-Month Delay Is a Public-Company Rule for Specified Employees

Section 409A also has a six-month payment delay after separation from service for a specified employee. The statutory definition ties that status to key employees of a corporation whose stock is publicly traded on an established securities market. It is not a blanket rule for every private-company executive with deferred compensation.

A 409A Failure Is Not a Small Paperwork Penalty

If an arrangement fails Section 409A, the law can require current income inclusion of affected deferred compensation, plus an additional federal income tax equal to 20% of the amount required to be included and a premium-interest calculation. The exact consequences are technical enough that this is a “verify before changing the election” issue, not a place for improvisation.

When RSU Deferral Can Make Sense

The strongest case for deferral is not “taxes are high.” It is a specific mismatch between a high-income vesting year and a future payment year in which your combined marginal tax cost is credibly lower—and the plan’s risks are acceptable.

Hypothetical: A Planned Income Valley

Suppose an executive is near retirement, has a large RSU tranche, and can choose a compliant settlement date after employment income ends. Deferral may be worth modeling if the later year leaves genuine room in lower federal brackets and the payout schedule does not collide with other large income. But if the plan forces a lump sum just after departure, the hoped-for “income valley” may disappear. The plan document can matter more than the headline tax bracket.

Other facts can strengthen the case: you expect unusually high commission or bonus income in the current year; the plan allows a payment schedule that matches early retirement; or the deferred account can be diversified away from employer stock after vesting under the plan’s terms. That last detail can completely change the decision: two plans both described as “deferred RSU” can create very different concentration and payout risks.

There Is No Universal “13-Point Rule” for RSU Deferral

The older version of this article used a rule of thumb that deferral “usually” required roughly a 12-to-15-percentage-point drop in marginal tax rate. I would not use that as a decision rule.

There is no tax-law threshold saying a 12-, 13-, or 15-point drop makes RSU deferral worthwhile. More importantly, the break-even point is not determined by the tax bracket alone. It depends on the actual plan: payout timing, creditor risk, diversification choices, liquidity, state-tax treatment, opportunity cost, and other income in the settlement year.

A Better Rule

Do not ask, “Is my future bracket at least 13 points lower?” Ask, “After I model the actual payout year, what am I being compensated for accepting this plan’s loss of flexibility and employer risk?” If the answer is a tiny estimated tax difference, I would usually prefer the flexibility of taking the shares now.

The Five Questions to Answer Before You Defer

I am replacing the old point-scored “Decision Engine” with a simpler test because these are not questions that become safe by adding points. One bad plan term can outweigh three attractive features.

RSU deferral decision check
Question	What you need to know	Red flag
1. What exact year(s) will I be paid?	Lump sum vs. installments, separation rules, fixed-date elections, and whether later changes are permitted.	You are assuming retirement creates a low-tax year, but the plan forces a large payout when you leave.
2. Can the deferred value be diversified?	Whether vested RSU value stays tied to company stock or can track other plan choices.	Your job, current pay, and a large share of your wealth all depend on the same company.
3. What happens if the employer fails?	Whether the arrangement is an unfunded NQDC promise and what creditor exposure remains.	The tax benefit is modest but the deferred balance would become a large part of your net worth.
4. Is the future tax advantage real?	Federal bracket, state sourcing/residency, other deferred payouts, pensions, conversions, capital gains, and Medicare effects.	The “lower bracket later” exists only because you ignored another large source of income.
5. Can I handle the taxes and lost liquidity now?	Employment-tax cash flow at vesting and the amount of wealth you are locking away.	You would need to borrow, sell unrelated assets at a bad time, or keep too little liquid cash.

This is the order I would use. First decide whether the plan mechanics are livable. Then model taxes. A beautiful tax projection cannot rescue a payout schedule you hate or a creditor risk you cannot afford.

When You Should Not Defer RSUs

You do not have a credible lower-income payment window. “Someday I’ll retire” is not a tax plan.
The distribution options are bad. A forced lump sum can recreate the high bracket you were trying to avoid.
You are already overexposed to your employer. If the plan keeps the deferred value tied to company stock, more deferral can increase concentration rather than reduce it.
The employer-credit risk is too large for the tax benefit. The Department of Labor describes unfunded NQDC plans as unsecured employer promises; if the employer fails, the risk is not the same as owning shares in your brokerage account.
You need the liquidity. Deferred compensation is a poor place for money you may need for a home, college, a business, or an uncertain early-retirement bridge.
You are trying to “fix” the election after the deadline. Section 409A is exactly the kind of rule where a casual amendment can create a much bigger tax problem.

One pattern I have seen in planning is people spending an hour estimating the future tax rate and five minutes reading the distribution section. I would reverse that. The distribution section tells you what future tax planning is actually possible.

Second-Order Tax Effects Most People Miss

A Move to a No-Income-Tax State Is Not Automatically a Free Tax Win

Moving from a high-tax state before settlement can change the math, but do not use a state’s top marginal rate as if every deferred dollar automatically escapes it. State sourcing rules, the period over which services were performed, residency, and federal rules affecting certain retirement or deferred-compensation payments can all matter. Treat the state-tax savings as a claim to verify for your specific plan and move, not as a guaranteed percentage.

If relocation is part of your strategy, use MRM’s guide to states with no income tax in retirement for the broader residency and total-tax tradeoffs—but have the RSU sourcing itself reviewed for your facts.

A Large Settlement Can Raise Medicare IRMAA Two Years Later

For Medicare beneficiaries, the Social Security Administration generally uses modified adjusted gross income from the tax year two years before the premium year to determine the income-related monthly adjustment amount (IRMAA). That means a large taxable settlement in 2026 can affect 2028 Medicare premiums if you are enrolled then.

The important correction is that one high-income tax year does not automatically create two years of IRMAA. The “two-year” rule is the lookback. Each premium year gets its own income determination. If you are close enough to Medicare for this to matter, review your IRMAA questions and income-planning issues before you lock a settlement year.

Deferral Can Crowd Out Other Low-Income-Year Opportunities

An RSU settlement can consume the same low-income tax bracket you hoped to use for Roth conversions, capital-gain realization, or other retirement-income moves. Do not model the RSU in isolation. The valuable question is which use of the tax bracket creates the best after-tax result for the whole plan.

Want Better Decisions Before the Deadline?

RSU deferral is a perfect example of why I focus on the second-order effects—not just the obvious tax rate. My weekly email breaks down decisions like 409A timing, equity-compensation tradeoffs, and retirement tax collisions before the fine print turns into an expensive surprise.

Get the free Michael Ryan Money newsletter.

The Practical Decision: Defer, Take It Now, or Defer Only Part

Consider deferring when the plan offers a payout schedule you actually want, you have a credible lower-income window, employer and concentration risks are acceptable, and you can fund the employment-tax and liquidity needs without strain.

Take the shares now when the projected tax advantage is small or speculative, the employer risk is uncomfortable, the plan locks you into bad distribution timing, or you want the ability to diversify immediately.

A partial deferral can be reasonable when your plan allows it and the tradeoff is genuinely mixed. But “50%” is not a universal prescription. The percentage should come from the amount of tax-rate capacity you want to shift, the concentration you can tolerate, and the liquidity you need to keep—not from a generic score.

What to Do Before Your Election Deadline

Get the plan document and election form. Highlight the election deadline, permitted deferral percentage, payment events, installment choices, and separation rules.
Ask whether the deferred value stays in company stock. If the plan uses notional investment choices, identify exactly when and how you can change them.
Map the tax years. Put vesting, employment-tax cash needs, settlement years, retirement income, other deferred compensation, and any Medicare lookback years on one timeline.
Model at least two futures. One where the planned lower-income year happens, and one where you keep working or another income source fills the bracket.
Verify state-tax treatment. Do this before you count a move as savings.
Have the election reviewed before changing payment timing. A CPA or attorney familiar with executive compensation and Section 409A is worth more here than an internet rule of thumb.

Frequently Asked Questions

Are RSUs taxed when they vest or when they settle?

For ordinary RSUs that settle at vesting, those dates are often effectively the same for income-tax purposes. When a compliant employer plan permits settlement to be deferred, federal income-tax inclusion can occur later while employment-tax timing may occur when the compensation is no longer subject to a substantial risk of forfeiture. Your actual award and plan terms control.

Can I change my RSU deferral election after I make it?

Sometimes a plan can permit a later change, but Section 409A imposes strict rules on subsequent elections, including timing and additional-deferral requirements in many situations. Do not assume you can simply move the payment date because your retirement plan changed.

Can deferred RSUs be lost if my employer goes bankrupt?

Unfunded nonqualified deferred compensation can remain subject to the employer’s creditors. The exact risk depends on the plan’s structure. This is fundamentally different from shares already delivered to and owned in your brokerage account.

Does moving to Florida or Texas eliminate state tax on deferred RSUs?

Not automatically. Your state of residence at payment matters, but state sourcing rules and the nature and payout period of the deferred compensation can also matter. Verify the treatment for your specific award, service history, move, and distribution schedule before counting the state-tax savings.

The Bottom Line

RSU deferral is not a tax-bracket trick. It is a trade: you give up some flexibility today in exchange for the possibility of better tax timing later.

The best candidates have three things at the same time: a plan with workable distribution rules, a credible future income valley, and enough financial strength that they do not need to pretend employer risk and lost liquidity are free.

Start with the plan document. Model the entire settlement year. Then decide whether the projected tax benefit pays you enough for the risks you are accepting.

Deferral without a plan is speculation dressed up as tax strategy.