Severance Package Taxes in Washington State Explained

Why Severance Gets Taxed Harder Than Your Regular Paycheck

Severance taxation in Washington state has gotten complicated with all the misinformation flying around. Here’s the one fact that actually matters: the federal government classifies lump-sum severance as “supplemental wages.” That triggers a flat 22% federal withholding rate — automatically, right off the check. No negotiation, no exceptions.

Most laid-off tech workers in Seattle see that 22% hit and assume they’re square. They’re not.

Washington has no state income tax — which is genuinely great — but that doesn’t shrink your federal bill by even a dollar. Federal withholding applies in full regardless. If your severance pushes your total 2024 income high enough, you’ll land in a higher bracket (22%, 24%, 32%, or worse), and that 22% withheld upfront won’t cover what you actually owe in April. The withholding is a down payment, not a final settlement.

I watched this play out firsthand when a friend received $120,000 in severance from a mid-size Seattle software company — one of those places on Eastlake with foosball tables and cold brew on tap. His check stub showed $93,600 after withholding. He felt genuinely relieved. For about two weeks. Then his accountant called and explained he still owed somewhere between $8,000 and $12,000 come filing time. Don’t make his mistake.

For severance packages above $1 million, withholding jumps to 37%. Less common in typical Seattle layoffs, sure — but equity-heavy packages push high earners past that threshold faster than people expect.

What Actually Shows Up on Your W-2 After a Layoff

Probably should have opened with this section, honestly. It’s the reason so many people get blindsided every April.

Your severance check is only part of what ends up on your W-2. After a layoff, your employer typically reports several distinct buckets of taxable income — and they all stack on top of each other.

Start with the severance itself. You received $80,000? That’s $80,000 in box 1. Simple enough.

Then there’s accelerated RSU vesting. If your company accelerated unvested shares worth $40,000, those vest immediately and count as ordinary income the year they vest — not when you eventually sell them. You’re now looking at $120,000 in income sitting on top of whatever salary you earned before the layoff date.

Some employers sweeten packages by covering COBRA premiums for a few months. Sounds generous. But what is imputed income? In essence, it’s compensation you receive in a non-cash form that the IRS still taxes. But it’s much more than a technicality — it’s a real number on your W-2. A family COBRA plan runs $1,500 to $2,500 monthly, so six months of employer-covered premiums adds $9,000 to $15,000 in phantom taxable income. You never see that cash. You still owe tax on it.

Here’s a real example worth walking through. An engineer — I’m apparently in a field full of these stories — earned $140,000 through September. Laid off with $80,000 severance, $40,000 in accelerated RSUs, and $12,000 in COBRA subsidies. Total W-2 income for the year: $272,000. The 24% federal bracket for single filers in 2024 starts at $191,950. She jumped from the 22% bracket into 24% on roughly $80,000 of her income. The withholding on her paychecks and severance didn’t come close to covering her actual bill.

The Washington State Angle Most Articles Get Wrong

Washington has no state income tax. Full stop. No 5%, no 9.63%, nothing on earned income. That’s real money saved compared to California or Oregon neighbors.

But stop there and you’ll miss the thing that catches Seattle workers off guard: Washington’s capital gains tax.

As of 2024, Washington taxes long-term capital gains at 7% on profits exceeding $262,000 per year. Sell RSU shares after your severance has already inflated your income, and those gains could land in taxable territory. It’s technically not an income tax — that distinction held up in court — but the check you write to Olympia spends the same either way.

Scenario: $100,000 severance lands in your account. You also hold RSU shares that vested at $30,000 and are now worth $150,000. Sell them in 2024 and you’re realizing a $120,000 long-term gain. Whether you cross the $262,000 threshold depends on your full picture for the year. The exposure is real. Run the numbers before you sell anything.

Most national tax articles are written for California or New York readers. They explain state income tax implications, note Washington doesn’t have one, and move on. Seattle readers walk away thinking they’re completely clear at the state level. Usually they are. Not always. That’s what makes this nuance endearing to us Washington residents — it’s actually in our favor most of the time, but only if you understand the full picture.

One more thing: Washington has no local income tax either. No city of Seattle surcharge. That saves another 1–2% compared to most major cities. Take the win.

Moves to Make Before December 31st to Reduce the Bill

So, without further ado, let’s dive in. You have weeks, not months — these moves require action before year-end.

Max Out a Traditional IRA Contribution

The 2024 Traditional IRA limit is $7,000, or $8,000 if you’re 50 or older. That full contribution reduces your taxable income dollar-for-dollar — saving roughly $1,540 to $1,680 in federal tax at 22–24% rates. Some custodians like Fidelity or Vanguard process contributions same-day online. While you won’t need a financial advisor just for this move, you will need to confirm your income doesn’t disqualify you from the deduction first.

Fund an HSA if You’re on a High-Deductible Health Plan

HSA contribution limits for 2024 sit at $4,150 for individuals and $8,300 for families. The contribution is pre-tax going in, grows tax-free, and withdrawals for qualified medical expenses come out tax-free forever. I’m apparently someone who ignored this account for three years before realizing what I was leaving behind. An HSA might be the best tax shelter available, as post-layoff finances require preserving every dollar possible. That is because the triple tax advantage compounds over time in a way almost nothing else does.

Make an Estimated Tax Payment

Didn’t have enough withheld from your severance? Submit an estimated tax payment before January 15, 2025 — that’s the Q4 deadline. Use Form 1040-ES or pay directly at irs.gov. Even if you still owe in April, the underpayment penalty will be meaningfully lower. This is the least exciting item on this list and probably the most important.

Time Large Charitable Gifts or Bunching

Donating appreciated stock or cash before December 31st reduces your taxable income and avoids capital gains on the donated shares entirely. First, you should confirm whether you’re itemizing — at least if your deductions might exceed the $14,600 standard deduction threshold. A $10,000 gift saves roughly $2,200 to $2,400 in federal tax at current rates. Donor-advised funds at Schwab or Fidelity Charitable can receive the gift immediately and let you direct it to specific charities later.

Consider a Roth Conversion

Here’s the situation where this makes sense: high income in 2024, likely lower income in 2025 while you’re job hunting. Converting part of a Traditional IRA to a Roth IRA now — paying tax at your current bracket — then living off savings next year when income drops can lock in long-term tax-free growth. This new strategy took off several years after Roth accounts were introduced in 1998 and has eventually evolved into the planning tool that tax-aware investors know and rely on today. That said — talk to a CPA before touching anything.

When It Makes Sense to Hire a Seattle Financial Advisor

Not everyone needs professional help here. If your severance was $30,000 with no equity attached, TurboTax Premier handles it fine — probably $89 to $120 for the federal filing.

You probably do need an advisor if:

• You received over $100,000 in severance plus unvested equity
• You’re unsure whether to roll a 401(k) to an IRA or leave it at your old employer
• You’re considering relocating out of Washington and need to understand the tax timing implications of that move
• You have RSUs continuing to vest over the next few years and want a strategic sell-or-hold plan
• You’re still negotiating a severance agreement and want someone to review the tax structure before you sign anything

A tax-aware financial planner in Seattle understands both federal withholding mechanics and Washington’s specific quirks — no income tax, the $262,000 capital gains threshold, the absence of any local Seattle surcharge. That’s what makes a locally-focused advisor different from a generic investment manager. You need someone focused on tax strategy, not portfolio returns. Fee-only planners charge by the hour or flat project fee rather than earning commissions — that’s the model worth seeking out. You’ll typically recover that fee in reduced tax liability. Reach out before year-end while there’s still time to act.