403(b) Catch-Up Contributions: The Last Push Before Retiring

What are 403(b) catch-up contributions, and who can make them?

403(b) catch-up contributions are extra salary deferrals, $8,000 above the $24,500 IRS limit for 2026, open to anyone who turns 50 by December 31. Eligibility covers the whole year, so a late-December birthday still counts for every paycheck. The money has to come out of school paychecks.

Denise (hypothetical) is 56, a single middle-school science teacher with 29 years of service. She has about $410,000 in her 403(b) and $120,000 in a 457(b), and she helps pay for her mother's assisted living. She wanted to know whether she could still save faster. She can.

The deadline is the last payroll of the calendar year. IRAs are different, since you can fund those until the April tax-filing deadline, but a check you write in March does nothing for a 403(b) catch-up.

One more point helps. Catch-up contributions sit outside the $72,000 total defined contribution limit (the IRS cap on employee plus employer money), so a district match or other employer money can't squeeze them out.

The age 60 to 63 window is bigger and short

Denise's plan was built around a flat catch-up. SECURE 2.0 changed that: for 2026 the IRS allows $11,250 in the years you turn 60, 61, 62 and 63, and at 64 the limit drops back to $8,000. Plans made before the change usually left up to $3,250 per year unused ($11,250 minus $8,000).

The same law adds a Roth requirement. If your prior-year FICA wages from the district were over $150,000, your catch-up has to be Roth, and if the plan has no Roth option, those higher earners can't make catch-ups at all. A teacher who moves into administration with a raise should check that line every year.

Denise earns well under $150,000, so pre-tax is still her choice. She plans to raise her election the year she turns 60.

Waiting two years costs Denise $16,000 of room

Start with the numbers in the table. Beginning the catch-up now gives Denise five catch-up years and $43,250 of room by age 60. Starting at 58 gives three years and $27,250. Waiting until 61 gives nothing, because she'll have no school paycheck then.

Find the Start now row first, then compare it with Start at 58. The gap between rows comes from years that are gone for good, since unused catch-up room never carries forward.

Four years at $8,000 is $32,000. Add $11,250 at age 60 and she has $43,250. Wait two years and it's $16,000 plus $11,250, or $27,250, so the delay forfeits $16,000. For illustration, at an assumed 5 percent per year, the first $8,000 would grow to about $9,724 in four years (8,000 × 1.05 four times). That's an assumption, not a forecast.

Each $8,000 lowers this year's federal tax by $1,760 (8,000 × 0.22), so her take-home drops about $6,240 per year, roughly $520 per month. That's money she'd otherwise put toward her mother's assisted living. Plug your own salary and bracket into the calculator on this site to see your monthly drop.

She starts at $8,000 now and plans to raise her election to $11,250 in the year she turns 60. She also keeps four months of spending in cash, because a care bill that jumps is more likely than a market crash to force her to sell investments. Her 403(b) funds can lose value, including the money she adds.

That deduction postpones tax. Whether it saves tax depends on her bracket once the pension starts.

What the extra years add

What it does to her paycheck, and what she chose

Does a pre-tax catch-up cut your tax or just move it?

A pre-tax catch-up cuts your tax only if your rate in retirement is lower than your rate now; otherwise it moves the bill to later years. A state pension paid from the first month of retirement often fills the same brackets your salary did, so for many teachers the deduction postpones tax.

Denise faced exactly this. A Roth 403(b) catch-up gives up the $1,760 deduction now (22 percent on $8,000) in exchange for tax-free qualified withdrawals later. Roth 403(b) accounts also have no required minimum distributions during the owner's lifetime.

Find the take-home row first: the Roth costs $1,760 more per year at the same $8,000.

Green State Credit Union compares the pension estimate with current taxable income before it suggests pre-tax or Roth. It doesn't guess at future tax law. If your pension keeps your rate where it is now, a pre-tax catch-up mostly postpones tax. Moving old pre-tax money to Roth is a separate decision, covered under Roth conversion planning.

Pre-tax or Roth at $8,000

Some teachers fall outside the usual catch-up advice

In districts that don't withhold Social Security tax, IRS guidance ties the $150,000 Roth test to prior-year FICA wages. A teacher with no Social Security wages from the district may still be caught by the Roth-only rule if prior-year FICA wages exceed $150,000, even with a high salary. Ask payroll in writing how they apply the 2026 rule to you.

A teacher retiring in June has fewer paychecks to spread the catch-up across, and you can't defer more than your actual pay. A $32,500 election may be impossible if your remaining pay is only about $30,000.

Two extra options can raise the limit. With 15 or more years at the same school district, the 403(b) special catch-up may allow up to $3,000 more per year, with a $15,000 lifetime cap. Ask the plan whether it offers it and in what order it counts the two. A 457(b) has its own separate limit, which the 457(b) plan advice page covers.

And maxing out isn't the first step if your cash reserve is thin or a family care bill could rise.

Which pay stub and W-2 lines show your catch-up room?

Your last pay stub shows year-to-date 403(b) deferrals, and last year's W-2 shows the rest: Box 12 code E is pre-tax 403(b), code BB is Roth 403(b), code G is 457(b), and Box 3 holds the Social Security wages the IRS uses for the $150,000 test.

Gather these before you decide, in this order:

The salary reduction agreement is the form that actually sets your deferral. It usually goes to the district or its third-party administrator, not to the 403(b) vendor. Changes sent only to the vendor often never reach payroll.

• Last pay stub, year-to-date deferrals
• Last year's W-2, Box 12 and Box 3
• District salary reduction agreement
• Latest statement from each 403(b) vendor
• Pension benefit estimate at retirement age

Mom's care bill usually starts the talk at home

For Denise, her brother raised it first, by asking whether a $520-per-month drop in take-home would put their mother's assisted-living share at risk. In most households, whoever pays the monthly bills brings up the catch-up question. Start with take-home pay before tax savings: agree on what each of you can cover per month, then look at the deduction.

One extra salary reduction form can be taxed twice

Separate salary reduction agreements with two 403(b) vendors can push your total past the $32,500 limit, because both vendors share one limit. The excess has to be paid out by April 15 of the following year. If it isn't, it's taxed twice, once in the year you contributed and again when you withdraw it. Say you're $2,000 over: at an assumed 22 percent, that's $440 of tax paid a second time.

Forgetting to raise your election in the year you turn 60 leaves $11,250 of room unused, and that room can't be made up later.

Checking Roth on the form when you meant pre-tax (or the reverse) can't be undone for paychecks already processed. A new form fixes only future paychecks. An $8,000 catch-up coded the wrong way changes that year's tax by $1,760 at an assumed 22 percent. Keep a dated copy of every form you file.

Bring your pension estimate to Green State Credit Union

If you're 50 or older and still on payroll, ask Green State Credit Union two things: given my pension estimate, will my tax rate after retiring be lower than it is now, and should my catch-up be Roth or pre-tax? Bring your pension benefit estimate and last year's W-2 so the answer rests on your own numbers.