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The Basics
A tax-free retirement just got closer

Congress has changed the rules with the new Roth 401(k), letting you sock away thousands more each year to grow tax-free. The catch? Your paycheck takes a bigger hit today.

 By Tracy Harger

Some people work to live. I work to retire. Im a fan of anything thats going to help me reach that goal faster.

Since I started investing 20 years ago, the two best paths to early retirement have been the 401(k) and the Roth IRA. A 401(k) lets you defer paying taxes on your savings until you withdraw the money in retirement, when your income tax rate is likely to be lower. If you think youll be in a higher income bracket when you retire, or if you want to pass money to your heirs tax-free, you might choose a Roth IRA as well, paying the taxes now so that you can reap the gains tax-free in your golden years.

We optimists who believe well be richer in retirement love the Roth IRA. I contribute the maximum amount every year.
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The problem? Some people make too much money to use a Roth IRA. Benefits phase out quickly for single people with incomes more than $95,000 and married couples with incomes more than $150,000. In any case, the limit on contributions is just $4,000 for 2005 ($4,500 if you're over 50 and "catching up").

But a compelling new hybrid kicks in for 2006. The new Roth 401(k) allows savers to contribute right up to the 401(k) limit of $15,000, regardless of their current income. Those older than 50 can contribute an additional $5,000. And once they retire or reach 59 1/2, they wont owe a cent in taxes on their contributions or the accumulated gains. Thats a powerful weapon in your retirement arsenal.

Here are the highlights of the new Roth 401(k):

  • Contributions are made through payroll deductions, just as in normal 401(k)s.
  • But contributions do not reduce your taxable income.
  • Like traditional 401(k)s, redemptions from the account can start at 59 , or after retirement, which ever comes later.
  • Required minimum distributions begin at 70 1/2, unless the money is rolled into a Roth IRA, which doesnt require minimum distributions and can pass to heirs.
  • Any matching employer contributions are funneled into a traditional 401(k).
  • You can split your contributions between traditional and Roth 401(k) accounts.
  • But you cant move money between the different 401(k) types.
  • Your employer decides which investment options are available to you (unlike a Roth IRA, in which you pick whatever you like).
  • The Roth 401(k) will sunset after 2010 unless extended by Congress, with no new contributions allowed.

Do the math
The biggest negative is that choosing a Roth 401(k) would reduce your take-home pay. Some simple examples (that dont account for state and local taxes or mortgage deductions) spell out the impact.

A 40-year-old making $50,000 a year falls into the 25% federal income tax bracket. He contributes 10% of his salary, or $5,000, to a traditional 401(k). This 401(k) contribution reduces his taxable income to $45,000. In the 25% tax bracket, this amounts to $11,250.

If that same person were to choose a Roth 401(k) instead, the 25% tax would be levied on the full $50,000 and the tax would be $12,500, an increase of $1,250.
  Compare 401(k)s
  Complete the fields below to see how changing from a traditional 401(k) to a Roth 401(k) could affect your current paycheck and your retirement income.  
  Annual salary    
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Annual contribution
Est. pre-retirement return
Est. post-retirement return
Current tax bracket
Retirement tax bracket
Current age
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Results
  Roth 401(k)
Current after-tax monthly paycheck    
Nest egg at retirement
Taxes paid on income and investments
Monthly after-tax retirement income
Current after-tax monthly paycheck    
Nest egg at retirement
Taxes paid on income and investments
Monthly after-tax retirement income
 
  Show Traditional 401(k) with current income tax savings invested  
 
  The calculator does not factor in raises or any company match. It assumes your retirement will last 20 years. And it does not allow you to split your contribution between types of 401(k)s, though you are allowed to do so.  
 

 


The difference would be even greater for those with higher salaries. Suppose a single filer making $90,000 a year contributed the maximum, $15,000, to a traditional 401(k). In the 28% bracket, her tax would be $21,000. But that same $15,000 contributed to a Roth 401(k) would leave her with a bill of $25,200, a difference of $4,200.

Play with your future
Why on earth, then, would you choose a Roth 401(k)?

Running the numbers might convince you. Take a look at the calculator to the right to help you get a handle on the general differences between the two 401(k)s.

For simplicity's sake, Im assuming that Congress will extend the life of the Roth 401(k) beyond the initial five years. Before you take it for a test drive, remember that its a basic calculator and certain keep-it-simple assumptions have been made:

  • Like that youre in a dead-end job and will never get a raise. But hey, you wont get laid off, either.
  • Despite widespread advice urging you to periodically increase your 401(k) withholding percentage, you will not do so.
  • The length of your retirement will be 20 years.
  • It doesnt factor in any matching dollars from your employer. Remember that matching dollars automatically go to the traditional 401(k), meaning theyre taxable when you withdraw them in retirement.
  • In real life, you can split your 401(k) contribution between traditional and Roth. In this calculator, its all one or the other.
However, some of the assumptions can be adjusted to your circumstances:

  • Your current age, salary and tax bracket (if youre not sure of your tax bracket, see the table below).
 2006 tax rates
Joint returnSingle taxpayerRate
$0-$15,100 $0-7,55010%
15,101-61,300 7,551-30,65015%
61,301-123,700 30,651-74,20025%
123,701-188,450 74,201-154,80028%
188,451-336,550154,801-336,55033%
336,551 and up336,551 and up35%

  • The age at which you plan to retire.
  • The percentage you contribute to your 401(k). Although it doesnt factor in any salary increases, you can test countless scenarios.
  • Expected return on investments, both while youre working and after you retire.
  • The tax bracket you think youll be in when you retire.
The first two sets of results from the financial calculator are pretty self-explanatory. But theres a third scenario that pays off best for most people: Choose a traditional 401(k) and invest the tax dollars you save. It assumes tax savings will be invested in a regular, taxable account.
What do the experts say?
I spoke with two financial planners. Scott Jensen works at Hardy and Hardy Co. in Lima, Ohio. Scott Neal is president of D. Scott Neal, Inc. in Lexington, Ky. Both of them agree that while the tax savings from a traditional 401(k) should be invested in some way, it just doesnt happen, Neal said.

Heres where they think a traditional 401(k) is best:

  • If youre in the highest federal income tax bracket (35%) and believe youll be in a significantly lower bracket when you retire, the opportunity to lower your taxable income now through a traditional 401(k) might be more appealing.

  • If youre a very conservative investor or if retirement is near (meaning less potential for growth), the prospect of tax-free redemptions from a Roth 401(k) might be less attractive.
Heres where they think a Roth 401(k) is better:

  • If you dont plan to spend all of your money in retirement, your Roth 401(k) can be rolled into a Roth IRA and avoid minimum distribution requirements. The tax-free growth can pass to your heirs. (Neal suggests his wealthy clients pay as much attention to distributions from their nest eggs as to the building of them.)

  • If youre a younger worker currently in one of the lower tax brackets, Jensen said, the Roth 401(k) is nearly irresistible. The future tax-free growth benefit of a Roth 401(k) far outweighs the current tax reduction of a traditional 401(k), Jensen said. I would build up assets in the Roth 401(k) as much as possible until Congress takes it away.
No matter which 401(k) you wind up choosing:

  • Always, always contribute enough to your 401(k) to get your employers matching dollars. As Neal points out, this is free money that should never be left on the table.
  • Every time you get a raise, bump up your 401(k) deduction percentage.

What will I do?
Theoretically the Roth 401(k) becomes available on Jan 1. But the IRS has not released the final regulations regarding the Roth 401(k), and it might not do so in time for your employer to be able to ramp it up for your annual benefits enrollment. If Roth 401(k)s dont even seem to be on your companys radar, now is the time to put a bug in the ear of your benefits department.


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Down the road, if Congress makes significant changes to the tax code such as a flat tax or consumption tax, all bets are off. Whether or not to choose a Roth 401(k) might then become a moot point.

I currently max out my Roth IRA and put 14% of my salary in a traditional 401(k). Early on in my research I figured that, when the Roth 401(k) became available, Id evenly split the 14% between the two 401(k) options, softening the tax hit on the full 14%. In subsequent years Id tilt more toward the Roth 401(k).

After crunching the numbers, though, I want to up the ante faster, putting at least 10% into the Roth 401(k) in 2006 and hopefully eliminating contributions to my traditional 401(k) by 2007. The Scotts and I have our fingers crossed that Congress decides to extend the Roth 401(k) beyond 2010.

 
 
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