Money · Retirement

401(k) vs Roth: What Should You Fund First?

Unlock the employer match first. Then choose Traditional or Roth without turning the decision into a tax-law project.

If your employer offers a 401(k) match, contribute enough to capture the full match first. In the illustrative $80,000 example below, contributing 6% means $4,800 from you and another $2,400 from the employer—$7,200 total for the year. After the match is captured, Traditional vs Roth is mainly a tax-timing choice. Do not let that choice delay retirement saving.

The match comes first

A match is employer money that only shows up when you contribute. This article uses one illustrative plan design: the employer matches 50% of what you defer, up to the first 6% of salary. That is a teaching example—not a typical, average, or standard U.S. employer plan. Your Summary Plan Description controls the real formula, vesting, and true-up rules.

On an $80,000 salary, 6% is $4,800 from you. At a 50% match on that first 6%, the employer adds $2,400. Contribute only 3% and you still get a match—but you leave $1,200 of available employer dollars uncaptured this year. Contribute 0% and you leave $2,400.

In dollars

Illustrative $80,000 salary · 50% match on the first 6% Illustrative example
Annual dollars for one illustrative worker. Plan design is not a U.S. average.
You defer You contribute Employer adds Total saved
0% $0 $0 $0
3% $2,400 $1,200 $3,600
6% (full match) $4,800 $2,400 $7,200

What ten flat years can look like

Match dollars are not only this year’s deposit. They join the balance that can compound over time.

Traditional vs Roth, briefly

After you are contributing enough to capture the full match, you may still choose how your own elective deferrals are labeled—if your plan offers both.

Employers may match designated Roth deferrals, but matching contributions are generally allocated to a separate pre-tax account—not to the Roth account—unless a plan uses optional Roth matching features. Check your plan; do not assume.

A practical frame: (1) capture the full employer match first; (2) then choose Traditional, Roth, or a mix based partly on when the tax benefit may be more valuable; (3) do not let uncertainty about the tax choice stop retirement saving. For current IRS details, use the source links below rather than a rule table in this article.

Your Next Move

Before you treat Traditional vs Roth as the first decision, check:

  1. Whether your plan offers a match, and the exact formula and vesting schedule
  2. The deferral rate that captures the full match on your pay
  3. Whether your elective deferrals can be Traditional, Roth, or split
  4. What a higher deferral does to this month’s take-home pay

This is general education, not a recommendation to contribute a specific amount or choose a specific tax treatment.

Ready to stress-test contribution, match, time, and return assumptions? Run the retirement growth calculator →

That tool projects account balance growth. It does not compare Traditional vs Roth tax outcomes.

Want the paycheck side of a deferral? See take-home pay.

Still building a cash buffer so contributions stick? How much emergency fund do you actually need?

Methodology notes

Match rows are simple annual arithmetic on an $80,000 salary: employee deferral = salary × rate; employer match = 50% × min(employee deferral, 6% of salary). The 10-year figure is an end-of-year ordinary annuity at a constant 7% nominal return with flat contributions and a $0 start—teaching math, not a forecast. Vesting, fees, true-ups, compensation limits, and taxes on withdrawal are not modeled here. Broader methods: How we calculate.

Sources