Nonqualified Deferred Compensation (Section 409A)
By Timothy LeGendre, CPA · Florida License #AC62625 · Published 2026-08-31
How a nonqualified deferred compensation plan under Section 409A defers a key employee's tax, and why it does nothing for an S-corp owner's own pay.
How it works
A nonqualified deferred compensation plan is a written agreement to pay compensation earned now in a later year. A qualified plan under Section 401(a) has to satisfy minimum participation, vesting, and nondiscrimination rules before the employer gets a current deduction. An NQDC plan trades that away: it is typically unfunded, the employee holding nothing but the employer's unsecured promise to pay, with no dollar cap comparable to what limits a 401(k) deferral. Not every payment made later is a deferral: compensation actually paid by the 15th day of the third month after the end of the later of the service provider's or the service recipient's taxable year in which the right to it first vests is not a deferral at all (Treas. Reg. 1.409A-1(b)(4)). An ordinary bonus paid the following March is never NQDC in the first place; Section 409A only bites once payment is pushed past that window.
Two older doctrines decide whether a deferral actually works, before Section 409A enters the picture. Constructive receipt taxes income once it is credited, set apart, or otherwise made available without substantial limitation, whether or not the taxpayer has taken it in hand. The economic benefit doctrine runs the other way: if the employer irrevocably sets aside property for the employee's sole benefit, the employee is taxed on its value immediately. Revenue Ruling 60-31 is the foundational authority here: an unsecured promise to pay, represented by no note, is not a receipt of income under the cash method.
Section 409A, added in 2004, layered a full statutory regime on top of those doctrines without replacing them; a plan has to satisfy both. 409A controls when a deferral election has to be made, when and how the money can come back out, and how the arrangement can be funded, backed by a penalty aimed at the employee rather than the employer.
The FICA timing effect
One piece of NQDC has nothing to do with income-tax deferral and gets missed constantly. Ordinary wages become FICA wages when paid; a deferred amount instead becomes FICA wages at the later of when the underlying services were performed or when the right to it vests. Once taken into account under that rule, the amount and any earnings credited on it afterward are never FICA wages again. A key employee whose salary already clears the Social Security wage base typically has deferred pay draw only the uncapped Medicare tax, plus a 0.9 percent surtax above a fixed $200,000 single / $250,000 joint threshold that has not moved since Congress enacted it. The deferral does not dodge FICA; it locks the bill in early, on the principal only, and shields every later dollar of growth from payroll tax for good, even though that growth stays ordinary income when paid.
What this is worth in Florida
The income-tax side of this is entirely federal. Florida has no individual income tax, so deferring compensation into a later year creates or avoids no state tax either way, no filing consequence going in or coming out. Whatever this is worth to a Florida employer or employee, it is worth it because of federal rate arbitrage and the FICA timing above, not anything the state does.
Who this applies to
Section 409A's coverage is broad on one side, narrow on the other. Employees, independent contractors, and non-employee directors can all be parties to a covered arrangement. Who actually benefits from running one is the narrower question.
- The plan sponsor. Any employer or service recipient can maintain an unfunded NQDC arrangement: a C corporation, an S corporation, a partnership, or a sole proprietor. Which entity a Florida business should even be is a separate question, covered in my Florida S-corp guide.
- The exemption that makes it practical. An unfunded plan limited to a select group of management or highly compensated employees qualifies as a top-hat plan, exempt from ERISA's Title I participation and vesting rules, its funding standards, and its fiduciary-responsibility provisions. That exemption is the whole reason NQDC can run without a qualified plan's compliance machinery. Broadening the covered group toward the general workforce risks losing it.
- The right participant. A genuine, non-owner key employee: a general manager, a VP of operations, a producer with no ownership stake. That person has no K-1, so none of the employer's income counts as theirs before it is actually paid, and deferring their pay genuinely defers their tax. Whatever base wage they already draw is a separate question; see S-Corp Reasonable Compensation for how that number gets set.
Why deferring an owner's own pay does not work
A majority S-corp shareholder-employee who defers their own pay hits a mechanical trap. S-corp income passes through under Section 1366(a): each shareholder picks up their pro-rata share of the corporation's income regardless of whether it was ever paid out. Section 404(a)(5) then denies the employer's deduction for deferred compensation until the employee includes it, so deferring part of an owner's own pay denies the corporation's deduction for that amount in the deferral year, raising its taxable income by the same amount and flowing straight through to that owner's own K-1 in the very year the deferral was supposed to push it out. Nothing gets deferred; the owner just adds FICA and 409A risk. The deduction does catch up in the payment year, offsetting the W-2 income the owner reports then, so the double-count resolves over time; what it never fixes is that the tax on the original amount landed in the wrong year relative to what the owner intended.
A partner's distributive share hits the same wall a different way: includible under Sections 702 and 704 in the year the partnership earns it, independent of distribution. A separately negotiated guaranteed payment can be genuine NQDC once deferred, but only for a minority partner whose payment is a real cost to the others, not a wash against their own share.
None of this makes NQDC a bad idea. It makes it the wrong tool for an owner's own paycheck. I route an owner looking for more deferral capacity to a Solo 401(k) or a Defined Benefit / Cash Balance Plan first, and an owner who has already maxed those out back to entity-level planning, the S-corp owner comp stack, rather than to NQDC for their own comp.
What it requires
A handful of structural conditions run underneath every compliant plan, and 409A treats a slip on any one of them as a full failure, not a partial one.
Stay unfunded
An arrangement stays unfunded as long as whatever is set aside remains a general asset of the employer, reachable by its creditors if the employer becomes insolvent, most often through a rabbi trust: an irrevocable trust that stops the employer from diverting or clawing the money back while its assets stay subject to those same general creditors in a bankruptcy. Because the money never leaves creditors' reach for the employee's exclusive benefit, it is not property under Section 83, so there is no current inclusion. What the trust does not do is protect the employee from those same creditors if the employer goes bankrupt, and that gap is the price of the deferral, not a drafting flaw. A trust that does shield the money, a secular trust, is funded instead, and the economic benefit doctrine taxes the employee immediately on the whole amount.
Elect on time
An election to defer compensation for services performed in a year has to be made by the close of the prior year: a bonus for next year's work must be deferred by December 31 of this year. A newly eligible participant gets a 30-day window, but only for services performed after electing. Pay tied to preestablished, written performance criteria over at least 12 months, substantially uncertain when set, can be deferred as late as six months before that period ends. Changing a payment date afterward is possible but restricted: the new election cannot take effect for 12 months, for most payments has to push the date out at least five years, and cannot be made within 12 months of the scheduled date of a fixed-date payment. There is no way to move a payment closer.
Distribute only on a permitted event
Section 409A allows exactly six triggers for paying the money out, and no others.
| Permitted event | Statutory cite |
|---|---|
| Separation from service | 409A(a)(2)(A)(i) |
| Disability | 409A(a)(2)(A)(ii) |
| Death | 409A(a)(2)(A)(iii) |
| A specified time or fixed schedule set at the date of deferral | 409A(a)(2)(A)(iv) |
| A change in ownership or effective control of the corporation, or of a substantial portion of its assets | 409A(a)(2)(A)(v) |
| An unforeseeable emergency | 409A(a)(2)(A)(vi) |
Once a payment is tied to one of these events, the plan cannot let anyone accelerate it. Only the employer, never the employee, can hold any discretion over moving a payment up, and only for a short list: a domestic relations order, an ethics-law compliance issue, a mandatory full liquidation of the employee's entire plan interest capped at the Section 402(g)(1)(B) elective-deferral dollar limit, or covering the FICA bill the deferral itself creates. A haircut letting an employee cash out early by forfeiting part of the balance fails the same way. Section 409A also requires all of this to be in writing, and a plan that reads correctly on paper but is administered off its own terms is still a failure.
What you need to document
Substantiation decides whether any of this survives an examination, and the file has to be built as things happen, not reconstructed afterward.
- The written plan document, dated and version-controlled
- Every amendment gets its own date. A defective provision can only be fixed before it is irrevocably exercised or paid under, so the history has to show exactly when a term existed.
- The rabbi trust agreement
- Ideally tracking the IRS's own model language, so the required general-creditor-claims provision is unambiguous rather than drafted from scratch.
- Contemporaneous deferral elections
- Signed and dated before the deadline, not reconstructed afterward. A timely election left undocumented looks, on examination, exactly like a late one.
- Distribution records tied to a permitted event
- Each payment should show which of the six triggers applied and when it occurred, not only the date the check went out.
The same discipline behind any examined compensation position applies here. My Reasonable Compensation Documentation strategy covers the file-building habits that make a wage figure defensible, habits a deferral file needs just as much.
Where it goes wrong
This is a mainstream, IRS-sanctioned compensation tool, with no listed-transaction posture and no aggressive-position risk on a properly drafted, properly run plan. The exposure is compliance risk, severe precisely because it is narrow: get the document and the operation right, or do not run one.
Two correction programs exist, and both punish waiting. An operational failure, the plan runs inconsistently with its own compliant terms, can often be corrected with no or limited income inclusion if fixed within the same taxable year, under Notice 2008-113. A document failure, a term in the plan itself violates 409A, can often be fixed by amendment under Notice 2010-6, but the cutoff for an impermissible acceleration provision is the earlier of it being irrevocably exercised or an actual payment made under it. Past that point, the full statutory consequences apply: immediate inclusion of every vested deferred amount, a flat 20 percent additional tax, and interest computed back to the year first deferred. Relief under Notice 2008-113 is unavailable once the taxpayer is under IRS examination on the issue, and neither notice is available for an intentional failure or a listed transaction.
The recurring mistakes
- Funding it too well. Setting money where the employer's creditors cannot reach it, an annuity or policy naming the employee directly, converts an unfunded plan into a funded one. Sproull v. Commissioner is the case usually cited: an irrevocable transfer for an employee's sole benefit is taxed immediately and in full.
- A constructive receipt slip inside an otherwise compliant plan. Handing the employee a debit card, a checkbook, or borrowing rights against the deferred balance defeats the no-substantial-limitations test regardless of what the plan document says.
- An offshore or springing trust. Moving rabbi trust assets outside the United States, or restricting them to the NQDC benefit specifically because the employer's finances deteriorate, is taxed the same as funding it too well.
- Missing the election deadline, or moving a payment date without the 12-month notice and five-year push-out.
- A haircut clause. Giving the employee, rather than the employer, any discretion over accelerating their own payment is never a valid exception.
- Deferring an owner's own pay. Not an audit failure exactly, nothing gets disallowed on examination, but a planning failure: the owner picks up the pass-through income anyway while carrying the full compliance risk above for nothing.
A situation where this comes up
The version I see most often is an owner-managed S corporation bringing on a genuine non-owner key employee, a general manager or VP of operations the business wants to lock in for years, not one bonus cycle. A raise creates no golden handcuffs; a properly drafted NQDC plan does, because the employee is paid only if they stay through the vesting and distribution terms, and because the deferred balance genuinely defers that employee's tax the way it never would an owner's.
Setting one up correctly is mostly documentation before it is tax: a written plan, a rabbi trust tracking the IRS's model language, a timely deferral election, and distribution terms tied to one of the six permitted events, not left to whenever the company decides. That work has to happen before the plan year starts, not after the fact.
The version that worries me is an owner who hears about NQDC as a deferral idea and wants to run it for their own bonus. The document can be flawless and the strategy still does nothing for that owner's return, while adding 409A's compliance risk on top of a benefit that was never there. That conversation belongs earlier, at how the owner's own wages get set, not at how they get deferred.
Authority
The primary sources behind this page. Where a citation has no link, the reporter citation is itself the locator.
- IRC sec. 409A
- IRC sec. 451(a)
- Treas. Reg. sec. 1.451-2
- Rev. Rul. 60-31, 1960-1 C.B. 174
- IRC sec. 83
- Treas. Reg. sec. 1.83-3
- IRC sec. 404(a)(5)
- IRC sec. 1366(a)
- IRC sec. 702
- IRC sec. 704
- Treas. Reg. sec. 31.3121(v)(2)-1
- IRC sec. 3101(b)(2)
- Treas. Reg. sec. 1.409A-1
- Treas. Reg. sec. 1.409A-3
- ERISA sec. 201(2) (29 U.S.C. 1051(2))
- ERISA sec. 301(a)(3) (29 U.S.C. 1081(a)(3))
- ERISA sec. 401(a)(1) (29 U.S.C. 1101(a)(1))
- IRS Notice 2008-113
- IRS Notice 2010-6
- Sproull v. Commissioner, 16 T.C. 244 (1951), aff'd per curiam, 194 F.2d 541 (6th Cir. 1952)
- Fla. Const. art. VII
Related strategies and guides
Please read: This page explains how a tax provision works in general terms. It is not advice about your situation, and reading it does not make you my client. Tax outcomes turn on facts I would need to review. Before acting on anything here, talk it through with your own CPA or attorney.
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Frequently asked questions
- What is a nonqualified deferred compensation plan?
- A nonqualified deferred compensation plan is a written agreement in which an employer promises to pay an employee, or another service provider, compensation earned now in a later year. It sits outside the qualified-plan system, so it carries no dollar cap like a 401(k) and no nondiscrimination testing, but it is typically unfunded, meaning the employee holds only the employer's unsecured promise, and it must satisfy Section 409A's strict rules on election timing, distribution events, and funding or the deferral fails.
- Can an S-corp owner use NQDC to defer their own taxes?
- Essentially no. S-corp income passes through to the owner's own return in the year the corporation earns it, regardless of whether it was paid out as wages, so deferring the owner's own pay does not defer the owner's own tax. The corporation's deduction is also denied until the deferred amount is includible, which raises taxable income passed through to every shareholder that same year. The strategy works cleanly only for a genuine non-owner key employee.
- What happens if a 409A plan violates the rules?
- All compensation deferred under the plan that is vested, going back to the year it was first deferred, becomes taxable income to the employee in the year the failure occurs. On top of regular tax, the employee owes a flat 20 percent additional tax and interest computed back to that original deferral year at the federal underpayment rate plus one point. The penalty falls on the employee, not the employer, and correction programs exist only before certain points are crossed.
- Does a rabbi trust protect deferred pay from the employer's creditors?
- No, and that is the point. A rabbi trust keeps the employer from diverting or clawing back the money, but its assets stay reachable by the employer's general creditors if the employer becomes insolvent, which is exactly why the arrangement is not taxed as funded. A trust that does shield the money from creditors is a secular trust, and it triggers immediate taxation on the full amount set aside, destroying the deferral entirely.
- Does deferring pay through NQDC avoid Social Security and Medicare tax?
- No, it changes the timing rather than the amount. A deferred amount becomes subject to FICA tax when it vests, not when it is eventually paid, and once it has been taxed once for FICA it is never taxed again, even as it grows. For a key employee whose wages already clear the Social Security wage base, that usually means the deferred principal draws only the uncapped Medicare tax, while years of investment growth on it escape FICA permanently.
- Who qualifies to participate in a top-hat NQDC plan?
- Only a select group of management or highly compensated employees, which is what makes the plan exempt from ERISA's usual participation, funding, and fiduciary rules in the first place. Broadening the covered group toward the general workforce risks losing that exemption and landing the plan under full ERISA Title I instead. Independent contractors and non-employee directors can also be parties to a deferred-comp arrangement, but the top-hat exemption itself is reserved for that narrow employee group.