This page asks for the total value of all IRAs as of Dec 31, 2017; but shouldn't it be asking for the total on Dec 31, 2016? Some 5498s are not yet issued for 2017?

[dmertz · Accepted solution]

"shouldn't it be asking for the total on Dec 31, 2016?"

No.  TurboTax does not calculate RMDs.  TurboTax is asking for the 2017 year-end balance for one of two reasons:  either you made an excess traditional IRA contribution and TurboTax needs to calculate the penalty on the lesser of the excess and the 2017 year-end balance, or you have basis in nondeductible traditional IRA contributions, made a distribution from a traditional IRA in 2017 and TurboTax needs to know the 2017 year-end balance to be able to calculate on Form 8606 the taxable and nontaxable amounts of the distribution.

Obtain the year-end value(s) of your traditional IRA(s) from your year-end statement(s).