Like many people box 16 is checked on my K-1 indicating a K-3 is attached but in fact it isn't available until after the the filing deadline. TT gives you a error message during the federal check that the box is checked but you haven't done the K-3.
My question is whether TT will let you e-file your return with this error message? And if they do let you e-file with the error message will the government accept it?
The alternative is to uncheck box 16 and I'd rather not do that.
Yes, you can e-file your return without the K-2 and/or K-3. Per the IRS:
Form 1065, Schedules K-2 and K-3 March 20, 2022
Form 1120-S, Schedules K-2 and K-3 Mid-June 2022
Form 8865, Schedules K-2 and K-3 January 2023