Hidden Gems in Your 401(k): How to Supercharge Retirement Savings in 2025

Most Americans expect they’ll need over $1.2 million to retire comfortably, and more than half worry they’ll outlive their savings, according to a recent survey from Northwestern Mutual. The good news? If you’re still working and looking for ways to catch up, 2025 brings some powerful (and often overlooked) ways to maximize your 401(k).

While many people focus on standard annual deferral limits, there are lesser-known features in many workplace retirement plans that could dramatically boost your retirement readiness, especially if you’re age 50 or older.

New “Super Catch-Up” Contributions for Ages 60–63

For 2025, standard 401(k) deferral limits rise to $23,500. If you’re 50 or older, you can also make a $7,500 catch-up contribution, bringing your total to $31,000.

Here’s where it gets interesting: thanks to Secure 2.0 legislation, workers aged 60 to 63 get an even bigger boost. Their catch-up limit rises to $11,250, raising the total annual deferral cap to $34,750.

There’s a catch, though: this benefit is age-dependent based on your age as of December 31 of the calendar year. So if you turn 60 at any point in 2025—even December 31—you qualify. But if you’re already 63 and turning 64 that year, you miss the window.

Also, not all plans have implemented this feature yet. About 3% of plans won’t recognize the enhanced catch-up option, which means contributions above $7,500 might be blocked in those cases. It’s essential to confirm with your HR or plan administrator.

After-Tax Contributions: The Overlooked Opportunity

Beyond catch-up contributions, there’s another powerful savings route that remains underutilized: after-tax 401(k) contributions.

While standard and catch-up contributions are capped, total 401(k) contributions—including employer matches, profit-sharing, and after-tax contributions—can reach up to $70,000 in 2025. This opens a window for high earners to sock away far more than the basic deferral limits allow, if their plan permits it.

Unfortunately, only 22% of employer plans offer this feature, and even when it’s available, few employees take advantage. In 2023, just 9% of eligible investors used after-tax 401(k) contributions.

But for those who do, there’s a major benefit: after-tax contributions can often be converted to Roth dollars inside the plan or rolled over into a Roth IRA, a strategy known as a mega backdoor Roth. This can create a powerful source of tax-free income in retirement.

Why Don’t More People Use These Features?

Participation remains low across the board. In 2023, only 15% of eligible employees made catch-up contributions, and fewer than 1 in 10 used after-tax features. The reasons vary, but include a lack of awareness, financial constraints, or confusion about eligibility.

For those who are able, however, these tools can create meaningful gains in retirement savings. Even modest increases in contributions can compound significantly over time, especially when paired with sound investment management.

Don’t Miss Out on What Your 401(k) Can Really Do

Maximizing a 401(k) isn’t just about deferring a fixed amount each year. It’s about knowing the rules, using the right strategies, and aligning your plan with your long-term goals.

That’s where we come in.

At Hanover, we offer 401(k) integration services that bring professional, fiduciary-level portfolio management to your workplace retirement account. Even if your 401(k) is held with a third-party provider, we can help you manage it with the same care and strategy we bring to the rest of your investments.

Retirement planning is too important to leave on autopilot. If you're serious about getting the most from your 401(k), contact us today.