After you file

you have to report the earnings, if any,  on the tax return for the year for which the contribution was made.

you can do it now or later.

I left that out to avoid complication.

To do it now, TurboTax may make it difficult.

the earnings should be a lot less than the IRA deduction.

 

you have until Oct 15 to do all this if you file form 4868.