Section 409A of the Code: Elections, Payouts, and Corrections

Section 409A of the Internal Revenue Code is the federal tax rule that governs nonqualified deferred compensation. It controls when an employee can elect to push pay into a later year, when that pay can actually be distributed, and how the arrangement must be reported. A plan that breaks the rules costs the employee, not the employer: the entire deferred balance becomes taxable immediately, and a 20% federal additional tax and a premium interest charge stack on top.¹

What Section 409A Covers

The statute applies to any plan under which a service provider has a legally binding right to compensation that will be paid in a later tax year. The right is “legally binding” when the employer cannot unilaterally reduce or eliminate it, and the analysis happens at the moment the right is created, not when the money eventually arrives.²

Common arrangements caught by Section 409A include supplemental executive retirement plans, annual bonuses paid after the short-term deferral window closes, phantom stock and restricted stock unit plans that pay out on a future date, and certain severance packages. “Service provider” is broad. It covers employees, corporations, partnerships, and personal service entities using the cash method of accounting.² Independent contractors in their own trade or business are generally exempt if they work for multiple clients and are not economically dependent on any one, though that carve-out is narrower than many contractors assume.

What Falls Outside Section 409A

Not every deferred payment triggers the rules. Several categories sit entirely outside them, and that is where most practical planning happens.

Qualified Retirement Plans and Welfare Benefits

Plans already governed by their own tax regime are excluded: 401(k) plans, 403(b) annuities, simplified employee pensions, and SIMPLE retirement accounts. Bona fide vacation leave, sick leave, compensatory time, disability pay, and death benefits are also out, along with Archer Medical Savings Accounts, Health Savings Accounts, and health reimbursement arrangements that satisfy Sections 105 and 106.²

The Short-Term Deferral Exception

This is the most important exemption in everyday practice. Compensation is not treated as deferred if it is actually paid by the 15th day of the third month after the end of the later of the service provider’s or the employer’s tax year in which the right to payment is no longer subject to a substantial risk of forfeiture.² For a calendar-year employer and employee, that is March 15 of the year after vesting.

The rule is why most annual bonuses never touch Section 409A. Earn a bonus for 2026 performance, receive it by March 15, 2027, and no deferral has occurred. Miss the window and the full weight of Section 409A applies.

The Separation Pay Exemption

Certain severance payments to employees who are involuntarily terminated, or who leave through a window program, sit outside Section 409A if two conditions are met. Total severance cannot exceed two times the lesser of the employee’s prior-year annualized compensation or the Section 401(a)(17) limit, which is $360,000 for 2026.³⁴ All payments must also be completed by December 31 of the second calendar year following separation. Anything over either limit is back inside Section 409A for the excess.

When Deferral Elections Must Be Made

If the compensation does not fit an exemption, the participant has to lock in a deferral election before the year of service begins. The statute requires the election no later than the close of the tax year before the year in which the related services are performed.¹ To defer part of your 2027 salary, the election has to be finalized by December 31, 2026.

Two exceptions exist. A newly eligible participant can make a deferral election within 30 days of first becoming eligible, but only for services performed after the election. Performance-based compensation tied to at least 12 months of service can generally be elected up to six months before the end of the performance period.⁵

When Deferred Pay Can Be Paid Out

Once compensation is deferred, it can only be paid on one of six events listed in the statute:

Separation from service (subject to the six-month delay described below).
Disability, as defined under the plan.
Death, with payment to the estate or beneficiary.
A specified time or fixed schedule set in the plan document at the time of deferral.
A change in ownership or effective control of the company, or a change in ownership of a substantial portion of its assets.
An unforeseeable emergency caused by events beyond the participant’s control.

Nothing else works. A plan that lets a participant request a distribution because they want the money, or that pays out on a non-qualifying event, violates Section 409A.¹

The Six-Month Delay for Specified Employees

When a specified employee of a publicly traded company separates from service, payments cannot begin until six months after the separation date, or the employee’s death if earlier. A specified employee is a key employee under Section 416(i): any officer with annual compensation above the indexed threshold (currently around $230,000), any 5% owner, or any 1% owner with compensation over $150,000.¹ Amounts that accumulate during the waiting period are typically released in a lump sum once it expires.

Change-in-Control Thresholds

Three transaction types qualify. A change in ownership happens when a person or group acquires more than 50% of the total fair market value or voting power of the corporation’s stock. A change in effective control happens when someone acquires 30% or more of total voting power within 12 months, or when a majority of the board is replaced within 12 months by directors not endorsed by the existing board. A change in asset ownership happens when someone acquires 40% or more of the corporation’s total gross asset value within a 12-month period.⁶ A plan that defines “change in control” using different numbers can create a nonqualifying payment event.

Changing or Accelerating a Payment

Participants cannot simply change their minds about timing. A subsequent election to alter the date or form of payment must satisfy all three of the following: the new election cannot take effect until at least 12 months after it is made; the payment must be pushed out at least five additional years from the originally scheduled date; and if the payment was tied to a specific date or fixed schedule, the new election must be made at least 12 months before the original payment date.⁵ The five-year push-out does not apply to payments triggered by death, disability, or unforeseeable emergency.

The anti-acceleration rule cuts the other direction. Paying out a deferred balance early, even at the participant’s request, triggers a 409A violation for the participant. Narrow exceptions exist for certain domestic relations orders, tax withholding obligations, and plan terminations that meet specific regulatory requirements.

Stock Options and Stock Appreciation Rights

Stock options and stock appreciation rights sit outside Section 409A only if the exercise price is set at or above the fair market value of the underlying stock on the grant date. An option with an exercise price below fair market value is a discount option, and the spread is deferred compensation subject to the full penalty regime.

For public companies, fair market value is the closing price on the grant date or the average of the high and low. For private companies, the regulations offer three safe harbors that create a presumption of reasonable valuation:²

An independent appraisal by a qualified appraiser, dated no more than 12 months before the grant.
A written internal valuation prepared by someone with at least five years of relevant experience in business valuation, financial accounting, investment banking, or a comparable field in the company’s industry, accounting for all relevant factors as of the valuation date.
A formula-based valuation used in connection with a nonlapse restriction under Section 83, applied consistently to all transfers of that class of stock, including repurchase rights.

The safe harbors only create a rebuttable presumption. The IRS can still challenge a valuation it considers grossly unreasonable, and a significant corporate event such as a new funding round or a signed merger agreement typically invalidates the prior valuation, requiring a fresh appraisal before new grants.

FICA Timing and W-2 Reporting

FICA has its own timing rule under Section 3121(v)(2) that runs independently from the income tax rules of Section 409A. Social Security and Medicare taxes are owed at the later of the date the services are performed or the date the compensation is no longer subject to a substantial risk of forfeiture.⁷ FICA is usually due when the deferred compensation vests, even though income tax is not due until it is actually paid years later.

A nonduplication rule prevents the same amount from being taxed for FICA twice. Once an amount is taken into account as FICA wages under the special timing rule, neither that amount nor the income it later generates is FICA wages when distributed.⁷ An employer that fails to withhold at vesting will owe FICA at the time of payment on a larger figure, because investment earnings on the deferred balance become subject to FICA too.

On the W-2, Box 12 Code Y reports amounts deferred under a Section 409A plan during the year. Code Z reports income includible because of a Section 409A violation.⁸ A Code Z entry signals to both the employee and the IRS that the plan failed and additional taxes are owed. The employer is not required to withhold the 20% additional tax or the premium interest charge; those are assessed against the employee, who reports and pays them on the individual return.

Penalties for a 409A Violation

The penalty structure is deliberately harsh, and it explains why this area gets the attention it does.

When a plan fails, all compensation deferred under it becomes includible in the participant’s gross income for the current tax year. Not just the amount that triggered the failure. Prior-year deferrals that have not yet been paid out are pulled in too. On top of regular income tax, the participant owes a flat 20% additional tax on the total amount required to be included.¹

The statute also imposes a premium interest charge running from the date the compensation was first deferred or, if later, the first year in which it was no longer subject to a substantial risk of forfeiture. The rate is the IRS underpayment rate plus one percentage point.¹ Because interest compounds from the original deferral date, a participant with a decade of accumulated deferrals can face a combined tax and interest hit that consumes well over half the deferred value. At least one state imposes its own additional 20% penalty on top of the federal amounts.

The penalties apply regardless of fault. A plan document with a noncompliant provision can trigger penalties even if the plan was never operated in a way that used the bad language. An operational mistake as small as a distribution paid two weeks late can trigger the full penalty on the participant’s entire deferred balance.

Fixing Mistakes Before Penalties Hit

The IRS provides two correction programs. The right one depends on whether the problem is in the plan document or in how the plan was operated.

Operational Failures: Notice 2008-113

Notice 2008-113 covers situations where the plan document complies but the company or participant did not follow it. Examples: paying out funds too early, distributing on a nonqualifying event, or failing to apply the six-month delay for a specified employee.⁹

Relief is graduated. Errors corrected within the same tax year they occur get the most favorable treatment, with no income inclusion under Section 409A. Corrections in the following tax year are available to participants who are not company insiders. For errors involving amounts below the annual elective deferral limit, the notice caps the income inclusion and limits the extra taxes. Even for larger errors caught later, the notice can waive the premium interest charge, though the 20% additional tax may still apply to a portion of the deferred amount.⁹ The window for same-year correction closes at the end of the tax year in which the error occurred, so mistakes discovered in December leave very little time.

Document Failures: Notice 2010-6

Notice 2010-6 addresses plan documents that violate Section 409A on their face.¹⁰ Common drafting errors include an incorrect “change in control” definition, a missing six-month delay for specified employees, impermissible employer discretion to accelerate payments, and vague language like “as soon as practicable” without a specific payment window.

Correction means amending the plan to replace the offending provision with compliant language. Relief is generally available only if the corrected provision does not affect the plan’s operation within one year after the correction. If it does affect operations within that year, the notice limits the income inclusion and additional taxes but does not eliminate them.¹⁰ Both programs require disclosure to the IRS and careful documentation of the fix.

1
Office of the Law Revision Counsel. 26 USC 409A – Inclusion in Gross Income of Deferred Compensation Under Nonqualified Deferred Compensation Plans
2
eCFR. 26 CFR 1.409A-1 – Definitions and Covered Plans
3
eCFR. 26 CFR 1.409A-1 – Definitions and Covered Plans
4
Internal Revenue Service. 2026 Amounts Relating to Retirement Plans and IRAs, as Adjusted
5
eCFR. 26 CFR 1.409A-2 – Deferral Elections
6
eCFR. 26 CFR 1.409A-3 – Permissible Payments
7
Office of the Law Revision Counsel. 26 USC 3121 – Definitions
8
Internal Revenue Service. 2026 General Instructions for Forms W-2 and W-3
9
Internal Revenue Service. Notice 2008-113 – Relief for Certain Operational Failures Under Section 409A
10
Internal Revenue Service. Notice 2010-6 – Relief and Guidance on Corrections of Certain Failures of a Nonqualified Deferred Compensation Plan to Comply With Section 409A(a)