Deferred compensation plans: a great tax deal secured by nothing

Once you're maxing a 401(k), a nonqualified deferred compensation (NQDC) plan looks like the obvious next move: defer unlimited salary or bonus, skip taxes now at your peak bracket, collect in retirement at lower rates. The tax math is real and often excellent. But NQDC plans carry a structural risk that qualified plans don't: the deferred money is not yours yet. It's an IOU from your employer, and if the company goes bankrupt, you stand in line with the other unsecured creditors. Understanding that trade — bracket arbitrage versus employer credit risk — is the whole game.

How these plans actually work

• You elect — before the year you earn it — to defer part of your salary or bonus. There's no IRS dollar cap, unlike a 401(k)'s limits.
• The deferral escapes federal and state income tax now (FICA is still due at deferral), and grows tax-deferred against a menu of notional investment options.
• Legally, no account exists in your name: the company records a bookkeeping liability. Even when employers fund a 'rabbi trust' to earmark assets, those assets remain reachable by the company's bankruptcy creditors — that's the feature that keeps the tax deferral legal.
• Distributions follow the schedule you elected up front — a specific year, or installments at separation — and section 409A makes those elections nearly irrevocable. Accelerating a payout is essentially prohibited; delaying one requires a five-year pushback elected a year in advance.
• Violating 409A's timing rules is brutal: immediate taxation of vested deferrals plus a 20% additional penalty tax.

The two arbitrages that make it worth considering

First, bracket arbitrage: income deferred at a 37% federal marginal rate and withdrawn in retirement at 24% keeps 13 cents more of every dollar, before even counting the tax-deferred compounding in between. Second — often bigger — state arbitrage: defer income while working in a high-tax state, then receive it after moving to a no-tax state. Federal law protects installment payouts spread over ten or more years from being taxed by your former state, making the ten-year installment election a powerful lever for California and New York executives with Nevada or Florida plans.

A framework for how much to defer

1. Gate one — employer quality: defer meaningfully only into investment-grade, durable employers. If the company's debt trades like junk, the extra yield you'd demand as a bondholder is your answer.
2. Gate two — concentration cap: keep NQDC balances under roughly 10–15% of net worth, counted alongside your company stock and options as one combined single-company exposure.
3. Gate three — the spread: defer when there's a genuine bracket or state gap to capture. Deferring 24% income to withdraw at 24% earns only the compounding, which may not cover the risk.
4. Prefer shorter, laddered payouts when nervous (five annual distribution 'buckets' beat one balance due in 15 years) — but weigh that against the ten-year installment rule for state-tax protection.
5. Max the protected accounts first: 401(k), backdoor Roth, mega backdoor Roth, HSA. Those are yours in any bankruptcy; NQDC is the marginal dollar after them.
6. Diversify the payout years so no single distribution spikes you into top brackets — the point was to escape them.

Election mistakes that can't be fixed

Because 409A locks your choices, the expensive errors happen at enrollment, not at payout. The classic: electing 'lump sum at separation' in your 40s, then getting laid off at 58 — the entire balance lands in one tax year, at top rates, in your former high-tax state, exactly reversing the plan's purpose. Installments-over-years is the safer default for large balances. Also read the plan's fine print on what happens at death, disability, and change-of-control — an acquisition can trigger payouts on a schedule you didn't pick.

NQDC vs. your 401(k), structurally

The table explains the sizing rule in one glance: every row where the 401(k) wins is a risk you're accepting in exchange for the uncapped first row. Price that trade like the bond investor you've effectively become.

The bottom line

NQDC plans offer real money — bracket and state arbitrage plus tax-deferred compounding, uncapped — secured by nothing but your employer's promise. Treat the balance as an unsecured bond issued by your company, cap it accordingly, elect installment payouts with care (they're carved in 409A stone), and fill every bankruptcy-protected account first. For a well-paid employee of a durable company, a measured deferral is one of the best tax plays available. Just never forget which column of the balance sheet you're standing in.