I am attempting to submit return with data from a 1099-R. TurboTax states the info in box 7 "1G" is invalid. It is clearly on the form. What is wrong with TurboTax?

[DoninGA]

Code 1 is an early distribution, no known exception and Code G is a direct rollover of a distribution.  Those two codes are not compatible.  It was either one or the other, not both.

Get a corrected 1099-R from the plan administrator.

[dmertz]

The payer might have generated this improper Form 1099-R if you performed a direct rollover and also received a distribution that was not directly rolled over, such as tax withholding.  Amounts direct rolled over (code G) and those that are not (code 1) are required to be reported on separate Forms 1099-R.

(Also make sure that you yourself have not tried to combine separate Forms 1099-R into a single form.  Some payers report multiple Forms 1099-R as separate line items on a single sheet, each with its own separate box-7 code.)