These big 401(k) changes are coming in 2026 — what it means for you
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As 2025 draws to a close, many financial advisors are preparing for 2026, which will bring significant changes to saving for retirement in 401(k) plans.
These changes include contribution limit updates and big tax change may impact long-term planning for certain investors.
“The most impactful change for next year will be for high-income earners,” said certified financial planner Juan Ros, a partner at Scottsdale, Ariz.-based Forum Financial Management.
More than 100 by the end of 2025 144 million Americans Defined Contribution will participate in so-called “defined benefit plans,” such as 401(k) plans through an employer, according to the Corporate Investment Association.
The 401(k) changes for 2026 come at a time when many Americans are worried about how inflation, stock market volatility and the U.S. political climate could affect their nest eggs.
Here are some important things you need to know.
Greater 401(k) contribution limits
From 2026 you can: Transfer more savings to your 401(k).
The employee deferral limit increased from $23,500 in 2025 to $24,500 for 2026, the IRS announced in November. The catch-up contribution for investors aged 50 and over will increase from $7,500 to $8,000 in 2026. The “super catch-up contribution” for savers ages 60 to 63 remains at $11,250.
“These increases are important because they help retirement savers keep pace with rising income and inflation while reducing taxable income in high-earning years,” said André Small, CFP, founder of consulting firm A Small Investment in Humble, Texas.
Currently, only a small percentage of 401(k) investors maximize employee deferrals each year.
Only 14% of 401(k) participants in 2024 maximized his plansAccording to Vanguard’s 2025 How America Saves report, based on more than 1,400 qualified plans and nearly 5 million participants.
The same report found that these investors were generally older, had higher incomes, and had been with their companies longer. By this point, nearly half of Vanguard participants earning more than $150,000 per year had maxed out their deferrals.
On average, the overall 401(k) savings rate, which includes employer deposits, is projected to be 12% for 2024, according to Vanguard.
High earners could lose tax breaks
Typically, 401(k) catch-up contributions for investors age 50 and older can be traditional pre-tax or post-tax Roth, depending on what the plan allows.
However, from 2026, catch-up contributions in general If you win, you must be Roth after tax more than $150,000 from your current employer in 2025, according to the IRS. This threshold, which came into force with the Secure 2.0 Act of 2022, has been adjusted for 2026 inflation.
“Effectively this change will mean that high earners will now pay more tax,” said Ros of Forum Financial Management.
Pre-tax 401(k) contributions provide an up-front tax deduction, but investors pay regular income taxes upon withdrawal. By comparison, after-tax Roth contribution growth is tax-free.
Typically, the choice between Roth and pre-tax 401(k) contributions depends on a variety of factors, including your current and expected future tax brackets, experts say. While high-income earners may lose the current year’s tax deduction in 2026, they can estimate with an advisor to strategize toward long-term tax planning goals.
