Deferred compensation
Your leave payout and your 457(b)
A firefighter can walk out with a year of banked overtime, vacation and sick leave in a single check, and watch a large piece of it disappear into one very bad tax year. Part of that money can go into the 457(b) instead. Not all of it, and only if you set it up before the check is cut.
This page is about federal rules that apply to governmental 457(b) plans generally. Whether your plan allows any of it is a question for your plan document, and the tax result is a question for your CPA.
First, the word everybody gets wrong
This is not a rollover, and that is the whole reason the deadline matters
People describe this as rolling their leave hours into the 457. I understand why, but the word sends you down the wrong path, and the wrong path has no deadline in it.
A rollover moves money that is already inside a retirement plan into another retirement plan. You can do that with your 457 balance after you retire, and you have plenty of time.
A leave payout is not plan money. It is wages. It is the same thing as a paycheck, just a large one. Which means the only way to get it into the 457 is the same way any paycheck gets in there, which is a deferral election made before you are paid. Once that money hits your bank account it is taxable income and there is nothing left to do about it. There is no do over, no sixty day window, no fix in April.
The one sentence version
You are not moving money after the fact. You are telling payroll, in advance, to send part of your final check somewhere else.
The mechanics
Three conditions, and all three have to be true
1. Your plan document has to allow it
Federal rules permit a governmental 457(b) to accept deferrals of pay for unused, accrued leave, but permitting is not requiring. The plan has to actually say so. Some do, some do not, and the people answering the phone at the recordkeeper are not always the people who know. Ask your employer's plan administrator, in writing, whether the plan accepts deferrals of leave payouts at separation, and keep the answer.
There is also a condition inside the condition. The leave has to be the kind you could have used if you had stayed employed. Accrued vacation and accrued sick leave generally qualify. A severance payment or a retirement incentive generally does not, because it is not pay you could have taken as time off.
2. The money has to be paid inside the window
The payment has to be made by the later of two and a half months after you separate, or the end of the calendar year in which you separate. Separate in March and the calendar year rule gives you until December 31. Separate in November and you are on the two and a half month clock.
This usually takes care of itself, because most departments pay leave out quickly. It stops mattering only if your department is slow, and then it matters a great deal.
3. Your election has to be in before the month begins
This is the deadline that costs people the whole strategy
For a 457(b), the deferral agreement has to be entered into before the first day of the month in which the compensation is paid or made available. If your leave payout lands in an August check, your election has to be on file by July 31. Not August 1. Not the day you clear out your locker.
This is a month earlier than most people assume, and it is the single most common way this plan falls apart. Get the election form in a month before you think you need to.
The ceiling
The annual limit is what actually decides how much you can shelter
This is the part that disappoints people, and it is better to be disappointed now than in your last month. You are not moving your leave payout into the 457. You are contributing it, and contributions are capped.
| 2026 | Amount |
|---|---|
| Elective deferral limit | $24,500 |
| Additional if you are 50 or older | $8,000 |
| Instead, if you turn 60, 61, 62 or 63 this year | $11,250 |
| Special catch-up in the three years before normal retirement age, in place of the age based catch-up | up to $49,000 total |
That special catch-up is the one worth understanding, because it is the only lever large enough to matter against a real leave payout. In the three years before the normal retirement age your plan specifies, a governmental 457(b) may allow you to defer up to twice the normal limit. In 2026 that is $49,000.
- It is not automatic and it is not a bonus. It only lets you make up limit you did not use in earlier years. If you maxed out your 457 every year of your career, there is nothing to catch up on and this does nothing for you.
- You use the special catch-up or the age based catch-up, not both. You take whichever is larger.
- Your plan has to offer it and you generally have to apply. There is usually a form and a service history calculation behind it.
What that means with real numbers
Say your combined annual and sick leave payout comes to roughly $90,000, which is not an unusual figure for a long tenured firefighter with a generous sick leave provision.
Best case, using the special catch-up at the 2026 limit, you shelter $49,000 and about $41,000 is paid to you and taxed. Without the special catch-up, at 50 or older, you shelter $32,500 and roughly $57,500 is taxed. Either way a large piece of it is coming to you as income, and the honest planning question is not how to shelter all of it. It is how to keep the taxable piece from landing in your highest income year.
Those are illustrations with round numbers, not your numbers. Your payout depends on your hours and your rate, and your limit depends on your plan and your history.
What this does not do
Two things people believe that are not true
It does not save you Social Security and Medicare tax
Deferring into a 457(b) keeps the money out of your federal taxable income for that year. It does not keep it out of Social Security and Medicare. Those come out either way. If somebody tells you deferring your leave payout avoids payroll tax, they are wrong, and it is worth knowing which part of the saving is real before you build a plan on it.
It does not make the tax go away
It moves the tax to the year you take the money out. That is genuinely valuable if your retirement income is lower than your final working year, which for most firefighters it is, especially in the years before Social Security starts. It is worth much less if you are going to pull it all out in year one anyway. The win comes from the gap between your last working year and your early retirement years, and that gap is a number you can actually calculate before you decide.
A reminder that applies to everything on this page. 457(b) money has no early withdrawal penalty once you separate, which is one of the real advantages of the plan over an IRA or a 401(k), but it is still ordinary income when it comes out. Rolling it to an IRA can cost you that penalty free access before 59 and a half.
A newer rule worth knowing about
If you work a lot of overtime, part of your catch-up may have to be Roth now
Starting in 2026, a participant whose Social Security wages from the employer exceeded the indexed threshold in the prior year, which is $150,000 of 2025 wages for 2026 determinations, must make age based catch-up contributions on a Roth basis rather than pre tax. Firefighters working heavy overtime cross that line more often than people expect.
Two things soften it, and both are in your favor:
- The governmental 457(b) special catch-up is excluded. The three year pre retirement catch-up can still be made pre tax regardless of your wages. Only the age based catch-up is affected. Which is one more reason to find out whether you qualify for the special catch-up before your last three years, not during them.
- Governmental plans get a later start date. The requirement applies to governmental plans for tax years beginning after the later of the end of 2026, or the close of the first regular legislative session beginning after 2025 of the body that can amend the plan. In plain terms, your plan may not have to comply as early as a private employer's.
Roth is not a worse outcome, it is a different one. It means tax now instead of tax later. But if your whole reason for deferring the payout was to get it out of a high income year, Roth treatment on that slice defeats the purpose, and you should know which slice is which before you file the form.
Better questions than how much can I defer
Three moves that are usually worth more than the deferral itself
1. Ask whether your department has a special pay plan or a retiree health account
Some employers run a 401(a) special pay plan that receives terminal leave payouts, and the ceiling there is far higher than the 457. The total annual additions limit for 2026 is $72,000. Others fund a retiree health account or HRA with unused leave, where the money goes in without income tax and comes out tax free for qualified medical expenses, which is a better result than the 457 for money you are going to spend on premiums anyway.
These are plan design features. Either your employer has one or it does not, and you cannot create one on your way out the door. But a surprising number of firefighters have one available and have never heard it mentioned. It is a two minute question to benefits and it is the highest value question on this page.
2. Look at where your separation date falls in the calendar year
The limit is annual. A separation late in one year with the payout landing early in the next can put two years of deferral limit in play, and can split the taxable remainder across two tax years instead of stacking it on top of a full year of salary and overtime. The payment timing rule above still has to be satisfied, and your plan and payroll have to cooperate, so this is a conversation to have with payroll and a CPA well in advance rather than an assumption.
3. Do not wait until your last year to use the 457 at all
The special catch-up only gives back limit you did not use. Which means the firefighter who contributed steadily for twenty years has less room at the end, and the firefighter who never contributed has more room but twenty years of growth he never got. The second one is not ahead. Overtime pay is ordinary wages and can be deferred like any other wages, within the same annual limit, and the hours you already work are the easiest source of contributions you will ever find.
This is the point I keep coming back to. The end of career move is damage control on a tax bill. The twenty year habit is the thing that actually builds the account. Both are worth doing. Only one of them is a strategy.
Take this with you
What to ask, and who to ask
- Does the plan accept deferrals of accrued leave payouts at separation? To your employer's plan administrator, in writing. This is the yes or no that decides whether anything else on this page applies to you.
- What is the deadline for my deferral election, given the date my payout will be issued? To payroll and the plan. Get the payout date first, then count back.
- Do I qualify for the special three year catch-up, and how much unused limit do I have? To the plan. There is usually a form and a calculation.
- Does my employer have a 401(a) special pay plan or a retiree health account that receives leave payouts? To benefits. Highest value question here.
- What will my gross payout be, broken into annual leave and sick leave? To payroll, in writing, because the two are often treated differently for pension purposes even when they are taxed the same.
And bring the numbers to a CPA before you sign anything. This is a tax decision with a deadline, which is the worst kind to improvise.
Sources for this page
- Internal Revenue Code sections 457(b) and 415(c), and Treasury Regulation 1.415(c)-2(e) on post severance compensation
- IRS Information Letter 2019-0026, on deferring payments for unused accrued leave into a 457(b) plan
- Treasury Regulation 1.457-4(b), requiring a deferral agreement before the first day of the month in which compensation is paid or made available
- IRS, Retirement Topics, Catch-up Contributions, and the 2026 cost of living adjustments
- Final regulations on the SECURE 2.0 Act catch-up provisions, published November 2025
Dollar limits are indexed and change annually. Plan provisions differ from employer to employer and a plan may be more restrictive than federal law allows. Confirm every figure against your own plan document and the current year's limits before acting.
Related
The rest of it
Questions about your own numbers
I watched good money go to waste over this
I am Mark Buckley, retired Miami-Dade Fire Rescue. I wrote Beyond The Firehouse because these questions kept coming up in station kitchens and union halls and there was no plain language book that answered them for the fire service. If you want to walk through your own payout and your own limits before your last year, reach out. No cost, no pitch.
mark.buckley@prudential.com
305-608-2690