Why your workplace retirement account is set up wrong

The default 401(k) settings at most companies are calibrated for the average employee, who doesn’t exist. carmannews walks through the three settings worth changing in the first hour after enrollment.

Here’s how most people set up their workplace retirement account: they get hired, click through the enrollment form as fast as possible, accept whatever the defaults are, and never look again. That’s understandable — the paperwork is dull and the stakes feel far away. But those defaults were chosen to be safe and uncontroversial for a hypothetical average employee, and “safe and uncontroversial” is not the same as “good for you.” A few minutes spent changing three settings, early, can mean a materially different balance decades later. This is one of the rare places where small adjustments compound into large differences.

One note before the specifics: account types, contribution limits, and tax rules vary by country and change over time, and the right choices depend on your income and situation. Treat what follows as the framework to think with and the questions to ask, not a substitute for your plan’s documents or a professional’s advice on your particular case.

Setting one: the contribution rate

The default contribution rate that auto-enrollment sets is often low — chosen to feel painless so people don’t opt out. The trouble is that a painless rate is frequently too small to fund a comfortable retirement, and worse, it may not be enough to capture your full employer match. The match is the single most important thing to get right, because it’s free money: if your employer adds money when you contribute up to a certain percentage, contributing less than that percentage means leaving guaranteed compensation on the table. There is no investment anywhere that reliably beats an instant, risk-free return from a match.

So the first move is to raise your contribution to at least the level that earns the full match, immediately. Beyond that, a useful habit is to increase the rate gradually over time — bumping it up a little whenever you get a raise, so the higher saving comes out of new money you never got used to spending. Many plans even let you automate those annual increases. The combination of capturing the match now and escalating slowly later does most of the heavy lifting of retirement saving without ever feeling like a sacrifice.

Setting two: where the money is invested

This is the setting people most often don’t realize exists. Contributing to the account is only half the decision; the other half is what your contributions are invested in. Some plans default uninvested or into a very conservative option, which means your money could be sitting in cash, barely growing, while you assume it’s working for you. Decades of cash instead of long-term investment is one of the most expensive default mistakes there is, precisely because you’d never notice it without looking.

For most people who don’t want to manage individual funds, a target-date fund is a sensible, low-effort choice — you pick the one with a year near your expected retirement, and it automatically holds a sensible mix that grows more conservative as you age. The other thing to check is cost. Every fund charges an expense ratio, and over decades, a high-fee fund can quietly siphon off a large share of your returns. Given two similar options, the lower-cost one wins more often than not. You don’t need to become an investor; you just need to confirm the money is actually invested and not bleeding fees.

Setting three: the contribution type, where you have the choice

Many plans offer a choice between traditional (pre-tax) and Roth (after-tax) contributions, and the default usually lands on traditional. The distinction matters: with traditional, you get a tax break now and pay taxes when you withdraw in retirement; with Roth, you pay taxes now and withdraw tax-free later. There’s no universally correct answer — it hinges on whether you expect to be in a higher or lower tax bracket in retirement than you are today. A common rule of thumb is that Roth tends to favor people early in their careers, when income and tax rates are relatively low, because paying the tax now at a low rate can beat paying it later at a higher one. But this is exactly the kind of decision worth confirming for your own numbers, ideally with a professional, rather than accepting the default blind.

The mistakes that cost the most

• Leaving the match on the table. The most expensive error in the whole list, and the easiest to fix. Contribute at least up to the full match.
• Assuming “enrolled” means “invested.” Check that your contributions are actually in a growth-oriented investment and not sitting in cash.
• Ignoring fees. A percentage point of extra cost a year sounds trivial and isn’t — over decades it compounds against you.
• Cashing out when you leave a job. Taking the balance as cash triggers taxes and penalties and erases years of growth. Roll it into your new plan or an IRA instead.
• Never revisiting it. Set it well once, then check in once a year. The “set and forget forever” version is how people discover problems decades too late.

The short version

• Default 401(k) settings are built for a safe hypothetical, not for you — change three of them early.
• Raise your contribution to at least capture the full employer match; it’s free, guaranteed money.
• Confirm the money is actually invested for growth, not parked in cash, and watch the expense ratios.
• If you can choose Roth vs. traditional, decide deliberately based on your expected future tax bracket.
• Never cash out when changing jobs — roll the balance over to preserve the compounding.
• Set it well once, automate annual increases, and review it once a year.

The owners who handled this best ran the numbers before the decision. The ones who handled it worst skipped the math entirely.

Priya Iyer, Business Editor, carmannews