How do catch up contributions stack for an emergency physician after 50?
By Ryan Inman
Published · Updated
The short answer
By limit, not by plan, on top of the same funding order you have run all along. The 401(k) and 403(b) share one catch up. The governmental 457(b) widens on its own. Established emergency physicians hold every plan shape in medicine: a 403(b), a 403(b) beside a governmental 457(b), or a solo 401(k).
The 401(k) and 403(b) catch up is one personal amount across those plans, while a governmental 457(b), where offered, has its own catch up room on top of its own limit. This page gives the mechanism and the order, and deliberately no catch up dollar amounts: those figures are set by the IRS year by year, and your plan documents hold the current year amounts.
Part of the emergency medicine hub.
The mechanism: base room first, then the widening
Every plan starts from the same base. For 2026, the elective deferral limit is $24,500, one personal limit across every 401(k) and 403(b) you hold, with a separate $24,500 in a governmental 457(b), and the total annual additions limit is $72,000. Catch up contributions are additional elective deferrals a plan permits a participant who has reached age 50 to make above the base deferral limit. Three properties define the system. The room follows the limit: the 401(k) and 403(b) catch up is one personal amount across those plans, and a governmental 457(b) adds its own. The room is on top: it raises what you may defer under that limit. And the room expires: unused catch up space in one plan year does not roll forward.
The consequence is the attending stack, widened. A public hospital physician who spent the attending years deferring $24,500 into the 403(b) and another $24,500 into the governmental 457(b), for $49,000 of combined base deferrals, because $24,500 times two plans is $49,000, watches both ceilings rise separately after 50. The stacking question builds that two plan base in full.
The governmental 457(b) special three year catch up
The governmental 457(b) carries one more mechanism no other plan on this menu has: a special catch up in the three years before the plan normal retirement age. In that window, a participant who underused the plan in earlier years may contribute up to twice the regular annual limit for the plan, limited by the amount of the limit left unused in those earlier years. The physician who could not max the 457(b) in the early attending years, because the waterfall sent the money to earlier rungs first, arrives at the window holding unused room the rule lets them reclaim. The physician who maxed the plan every year has no unused room to reclaim and uses the ordinary age 50 catch up instead.
Two rules keep the window honest. The special catch up and the age 50 catch up do not stack inside the 457(b) in the same year: the plan applies the larger available amount, not the sum. And the window is tied to the plan normal retirement age, so learn the date three years out. Money deferred into a governmental 457(b), catch up dollars included, is available after separation from service without the 10 percent early withdrawal penalty, which makes it the natural first draw of the staged exit the exit plan question builds.
The solo 401(k) version, and the order to use them
The solo 401(k) holds two contribution roles for one person: elective deferrals as the employee, and employer contributions as the practice, up to 25 percent of compensation, which for the self employed computes to about 20 percent of net self employment earnings. After 50, the plan adds catch up room on the employee deferral side, above the $24,500 base for 2026. The employer side gains no catch up of its own. What the contractor gives up is the second room: there is no solo equivalent of the governmental 457(b) beside the solo 401(k). The contractor answer at scale is a different instrument, the cash balance plan worked in the cash balance question.
The order does not change because the rooms grew. Inside the max retirement tier of the waterfall, the HSA still leads where you hold one, at $4,400 for self only coverage and $8,750 for family coverage in 2026. The first workplace plan fills next, to its base limit and then into its catch up room, because the employer match still sits on that plan and the match still comes before everything. The governmental 457(b) fills after it, base room and then whichever catch up route the year allows. The solo 401(k) physician runs the same logic on one plan: deferral, catch up room on the deferral, then the employer contribution. Mega backdoor room still comes last in the tier. Bigger rooms, same ladder.
The main points
- Catch up room follows the limit: the 403(b) and the solo 401(k) share one catch up after 50, and a governmental 457(b) where offered widens separately, on top of the $24,500 base deferral for 2026.
- The governmental 457(b) special catch up runs in the three years before the plan normal retirement age and reclaims room underused in earlier years, without stacking with the age 50 catch up.
- The solo 401(k) catch up lives on the employee deferral side only. The contractor has no second plan room, which is what the cash balance plan answers at scale.
- The funding order never changes: HSA first inside the tier, the matched plan and its catch up room, then the 457(b), then mega backdoor room last.
Related questions
Do the age 50 catch up and the special 457(b) catch up add together?
No. Inside a governmental 457(b), a year in which both routes are available uses the larger of the two amounts. The special window wins when the unused room from earlier years is large, which is why it rewards the physician whose early attending years were spent on the earlier rungs of the waterfall.
I am 52 and only ever had a 403(b). Is the second room lost?
The room itself is not lost. If a current or future public employer offers a governmental 457(b), its base limit, catch up room, and special window mechanics are available from the years you hold that job. What cannot be recovered is time in a plan you never held.
Where do I find the actual catch up amounts for this year?
In your plan documents and your benefits office summary for the current year. The amounts adjust over time, and a general page that printed one figure without a year attached would mislead more than it helped.
Sources
- Internal Revenue Service, Notice 2025-67 (2026 elective deferral limit of $24,500 and total annual additions limit of $72,000, accessed October 2026)
- Internal Revenue Service, 457(b) plans (governmental 457(b) special catch up in the three years before normal retirement age, and distributions after separation without the early withdrawal penalty, accessed October 2026)
- Internal Revenue Service (One Participant 401(k) Plans: employer contributions up to 25 percent of compensation, about 20 percent of net self employment earnings for the self employed, accessed October 2026)
- Internal Revenue Service, Revenue Procedure 2025-19 (2026 HSA limits of $4,400 self only and $8,750 family, and IRA limit of $7,500, accessed October 2026)