This is the first post that you've made mentioning a "redeposit." It seems that you are referring to what is called a rollover. When entering the Form 1099-R, TurboTax will ask what you did with the funds and when you indicate that some or all of the distribution was rolled over, TurboTax will ask the amount that was rolled over and will exclude that amount from the taxable amount that would otherwise be included on Form 1040 line 4b or 5b.
