When you filed your taxes, you may have set a schedule as to when your taxes will be taken out of your bank account (assuming you set up for direct debit). Since you filed it over the weekend - I assume you set it up to be taken out either yesterday or today. Since it is the busiest day for the government for taxes, they may be delayed in taking it out. They will get to it - so no worries. As long as you filed prior to today, you are all good to go.