The share of employers allowing Roth 401(k) savings surged last year, giving more workers access to the financial benefits that accompany such contributions.
A Roth is a type of after-tax account. Workers pay taxes up front on 401(k) savings, but investment growth and account withdrawals in retirement are tax-free. This differs from traditional pre-tax savings, whereby workers get a tax break up front but pay later.
Not all plans let workers save in a Roth account. The percentage of 401(k) plans
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