How Much Salary Is Your 401(k) Worth?

SURE, YOU KNOW that your employer's 401(k) plan is a good deal. But how much of a good deal? And how much should it figure into your negotiations next time you think about changing jobs?

How Much Salary Is Your 401(k) Worth?

Perhaps more than you realize.

Let's say you're making $75,000 at your current job, and you contribute 10% of your salary to the firm's 401(k) large-cap fund option. The plan matches your $7,500 with 50 cents on the dollar, or $3,750. And since you save $2,250 in taxes (assuming a 30% combined federal and state rate), you can put most or all of that away for your kid's education.

Then you get a job offer from a startup firm with a 20% raise, bringing your salary to $90,000. Not bad. The only problem: There's no 401(k). So how much of a raise are you really getting?

Some of the disadvantages are immediately obvious. You'll lose the $3,750 in matching contributions. That means the raise is really only $11,250. And then there's the tax savings. Okay, sure, you can now open a deductible IRA, something you weren't eligible for before because you were already covered by a plan, but there's a $4,000 limit on that. That means that in 2005 you'll have only $1,200 in tax savings, $1,050 less than you now have -- which shrinks your raise even further, to $10,200.

But that's not all. You still want to save for retirement and your kid's education. But now you'll have to save more because you've lost the benefit of tax-free compounding. The after-tax rate of return each year on a taxable account can be more than one percentage point lower.

Add everything up and you will discover that if you keep your money invested for 20 years, $6,451 of your new raise will go to replacing the cost of the 401(k) program you're giving up. That means the new position is really only a 11.3% improvement on your current job -- chump change, really.

The worksheet below will help you calculate how much you'd be giving up if you walked away from your 401(k).