Assuming a single 1099-R with a code G in box 7, zero in box 2a and the after-tax amount that went to a Roth in box 5:
TurboTax does not directly support a single 1099-R going to two different destinations.
What you must do is split the 1099-R into two 1099-Rs.
For the amount rolled to the Traditional IRA.
1) In box 1 use the original 1099-R box 1 minus the box 5 amount.
2) Box 2a = 0.
3) Box 5 = blank.
4) Box 7 = G.
5) Answer NO to the two interview questions that ask about a Roth - the default is a Traditional IRA.
For the amount rolled to the Roth IRA.
1) In box 1 enter the original box 5 amount.
2) Box 2a - 0.
3) Box 5 = original box 5 amount.
4) Box 7 = G.
5) Answer NO to the first interview question about a 401(k) Roth and YES to the rollover to a Roth IRA.
That should properly report the 1099-R. The box totals of the two 1099-R should equal the amounts on the original 1099-R.
Nothing about splitting into two 1099-R's go on a tax return - the IRS only gets the dollar amounts on the 1040 form.
Is the after tax money in box 5 on the 1099-R?
What code is in box 7?
Is box 2a zero?
If so, then this must be entered in a special way as TurboTax does not directly support this situation.
You can do a rollover between a regular 401(k) and a Roth IRA, but it requires that you make a stop at a Traditional IRA (TIRA) first. You do a 401(k) rollover, to a TIRA first. Then you do a Roth IRA conversion.
So, how you handle it depends on what's on the 1099-R(s). A Roth conversion is taxable
If the 401(k) had a mix of before and after-tax money and the after-tax is in box 5, then the before tax money can be transferred directly to a Traditional IRA and the after-tax (amount in box 5), transferred directly to a Roth IRA. Neither will be taxable. The 401(k) after-tax money would not be transferred to a Traditional IRA.
Assuming that this was reported on a single 1099-R, which is very common, I will post the procedure below.
Yes, after tax money in box 5, code is G and box 2a is 0
Assuming a single 1099-R with a code G in box 7, zero in box 2a and the after-tax amount that went to a Roth in box 5:
TurboTax does not directly support a single 1099-R going to two different destinations.
What you must do is split the 1099-R into two 1099-Rs.
For the amount rolled to the Traditional IRA.
1) In box 1 use the original 1099-R box 1 minus the box 5 amount.
2) Box 2a = 0.
3) Box 5 = blank.
4) Box 7 = G.
5) Answer NO to the two interview questions that ask about a Roth - the default is a Traditional IRA.
For the amount rolled to the Roth IRA.
1) In box 1 enter the original box 5 amount.
2) Box 2a - 0.
3) Box 5 = original box 5 amount.
4) Box 7 = G.
5) Answer NO to the first interview question about a 401(k) Roth and YES to the rollover to a Roth IRA.
That should properly report the 1099-R. The box totals of the two 1099-R should equal the amounts on the original 1099-R.
Nothing about splitting into two 1099-R's go on a tax return - the IRS only gets the dollar amounts on the 1040 form.