All the returns filed before today have been sitting in a "holding pool" waiting for the IRS to come and drain the pool. The IRS fetched a few returns early for testing purposes but nothing will start processing until sometime today no matter when your return got put in the pool. Due to the large numbers of returns sitting in the pool it may take the IRS a couple of days to drain it ... when they get to your return you will get an email from TT alerting you if it was accepted or rejected.
FYI ... if your return had any EIC, CTC or ACTC on it then those returns will not start processing until mid February at the earliest so don't expect a refund until March and it you have a stimulus credit on line 30 those could take much longer to process like last year so don't hold your breath.
