A standard 401k plan allows taxpayers to save money for retirement, usually with their employer matching some or all of their 401k contributions on a regular basis. There is a catch however. In order to encourage people to save money for retirement, and to only use that money once they have stopped working, there are tax considerations, yet there are also penalties if money is withdrawn too early. A ten percent penalty is imposed on any early 401k withdrawal, and of course you have to pay tax at your current rate.
It is the tax that is the main concern for most responsible citizens who are able to save money with their 401k investing and not need it until much later in life. With a 401k retirement plan, the money you earn in your account is not taxed until you withdraw it. The principle here is that people withdrawing from their 401k accounts will likely be retired and therefore in a lower tax bracket than when they were making their money. For some people, though, being taxed when withdrawing funds from their 401k will not be financially advantageous and this has led to many choosing Roth 401k plans.
For people who want to get tax paying done at the start, the Roth plans are the best way to go. It is also a good choice for those who expect to be in a higher tax bracket when they retire. The reason for this is that the Roth plan operates by having account owners pay tax on whatever they earn in the same taxation year. This is the exact opposite of the traditional 401k plan where taxes are not imposed until the money is taken out of the account.
A Roth 401k is not the way to go for individuals currently earning a significant amount of money, and planning to be in a lower tax bracket when they are at retirement age. There are other considerations as well, like the fact that money in a Roth account cannot be moved to a regular 401k account. As well, there are not many employers out there willing to offer Roth plans, due to the extra administration required to offer the standard 401k retirement plans in addition to the Roth ones.
The standard Roth or 401k plan are similar in purpose, in that they are both there to encourage and enable people to save money for their retirement. The differences in how the funds in the accounts are taxed will be the main deciding factor in choosing which plan works best for you. As with most long-term investment strategies, having a mix of different funds will probably result in the best retirement strategy.