No...the run test batches at several point before the official starting date.
The only thing you have to worry about is forgetting, or not waiting to enter some data you should have put in, but didn't because you filed so early. 1099-INT forms entered for bank interest?....1099-R forms for distributions of retirement $$? any mutual fund distributions you might own on 1099-DIV forms that haven't come out yet? Of course, if you will have none of those for 2019, maybe it's OK.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
