When you file right before (or on) the busy April 15, 2019 deadline, the IRS may not be able to debit your payment until after the deadline, due to high e-filing volume. In addition, it can take your bank another few days to post the debit to your account.
To verify the date that Federal funds will be withdrawn from
your account, confirm that funds have been transferred, or cancel the
transaction up to 48 hours before the date you designated the funds to be
debited, call the IRS at 1 (888) 353-4537.
As long as you filed your return or extension on or before April 15, 2019 and you selected April 15, 2019 (or earlier) as your payment date, you won't get penalized for late payment.
In the meantime, keep an eye on your bank account — if you still don't see the debit 7–10 days after your return has been accepted, call IRS e-file Payment Services at 1-888-353-4537 or contact your state tax agency, as appropriate.
