It depends on the employer, but some employers offer both a pension plan and a 401k.
If this is the case, you can opt for both, neither, or one or the other. Let's take a look at how pension plans stack up against 401ks.
Pension Plans
The pension plan has actually been around for a long time. They got started in 1875, with the first pension plan established at The American Express Company.
Pensions became more popular over the years. At that time, it was normal for a worker to stay with a company from when they started working until they retired. Of course, today, that's often not the case.
That's why 401ks have become more common than pensions.
401k Plans
With a 401k, you can roll your retirement savings over into a new company's plan or an IRA if you switch jobs. And, with a 401k, you can better control your investments than with a pension plan.
401ks also allow you to choose to increase your contributions, while with a pension, you can only contribute a set amount.
Few companies today offer pensions, much less both a 401k and a pension. However, it's common to have both choices if you work in the public sector.
Which One Is Better?
If you plan to spend the rest of your working years with the same company, a pension makes sense.
But a 401k can be a better choice if you plan to leave the company in a matter of years.