Comparing the Roth 401(k) and Traditional 401(k)
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My employer recently added a new option to our 401(k) plan: a Roth 401(k). While I had heard about these plans, I had to do some research to determine if the Roth 401(k) was a good idea for me. Here’s what I found out.
What is a Roth 401(k)?
As the name suggests, a Roth 401(k) combines features of the traditional 401(k) with those of the Roth IRA. It’s offered by employers like a regular 401(k) plan, but as with a Roth IRA, contributions are made with after-tax dollars. While you don’t get an upfront tax-deduction, the account grows tax-free, and withdrawals taken during retirement aren’t subject to income tax, provided you’re at least 59 1/2 and you’ve held the account for five years or more.
The Roth 401(k) concept was introduced with the Economic Growth and Tax Relief Reconciliation Act of 2001, which stipulated that employers could start offering these plans on Jan. 1, 2006. So far, 12% of employers offer a Roth 401(k), according to the 2007 “Hot Topics” survey by Hewitt Associates, an employee benefits consulting firm, and 32% have indicated that they’re likely do so this year.
Who is eligible to contribute to a Roth 401(k)?
Anyone whose employer offers it.
What about the employer match?
Employer matches are made with pretax dollars, so the match will accumulate in a separate account that will be taxed as ordinary income when it is withdrawn at retirement.
What are the early withdrawal rules?
They’re exactly the same as the traditional 401(k) rules.
Is the Roth 401(k) here to stay?
Yes. It was originally set to expire after 2010, but 2006 legislation made it permanent.
Should I invest in a Roth 401(k)?
It depends. If you expect your tax rate to be the same or higher in retirement than it is now, you might be better off with a Roth 401(k). This is likely to be the case with young people who are just starting their careers and expect their income to increase in the future. For people who are in the 15% or 25% tax bracket, it may not be a bad idea to pay those taxes now and never have to worry about what tax brackets might become in the future. However, if you’re in your peak earning years and you think your tax bracket will be lower in retirement, you’ll benefit from continuing with traditional 401(k) contributions.
A simple calculation
I never recommend specific investments, or even specific types of investments. Your situation is different than mine, so you need to do the research yourself to see what makes sense for you. But I’d like to show you the math that led me to switch from a traditional to a Roth 401(k).
There are a lot of Roth 401(k) vs Traditional 401(k) calculators on the web. I used this one.
My situation is this: I’m 32 years old, I earn $50,000/yr, and I save 15% of my salary (or $7500) towards retirement. I plan to be wealthy when I retire, so I’m going to assume that I’ll still be in the 25% tax bracket in retirement. (I never understood why people plan to be in a lower tax bracket when they retire. I want to get RICH. I’d be THRILLED to be in the 35% tax bracket at retirement! But I digress…) I’m also assuming an 8% rate of return for the next 33 years, and assuming I’ll live 20 years in retirement.
Traditional and Roth accounts: Equal value at retirement
After 33 years of contributions and growth, the traditional and Roth accounts would both be worth $1,216,585 at retirement. Without accounting for taxes, each account could provide annual withdrawals of $101,271 in retirement.
Traditional 401(k): Withdrawals are taxed
With traditional 401(k) accounts, taxes are paid on withdrawals. So annual withdrawals from a traditional 401(k) account would be reduced to $75,953 after taxes of $25,318 are paid.
Contributions to Roth 401(k) accounts are made with money that’s already been taxed, so qualified withdrawals are not taxed again. Therefore, the Roth account could provide the full $101,271 each year.
Traditional account: Tax savings can be invested
With a traditional account, the tax benefit comes at the time money is invested — contributions are not taxed.
To allow for a fair comparison, the potential value of these tax savings with a traditional account needs to be measured.
If the annual tax savings of $1,875 were invested in a taxable account with the same returns as for the retirement plans, the investment of your tax savings could provide additional annual income of $14,480.2
The additional income would not make up for the taxes paid on withdrawals.
Conclusion: For me, the Roth 401(k) is the better option.
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