Get your taxes done using TurboTax

not sure about TT options but you can take TT out of the payment loop - you should have an option to mail a check and then pay directly online at https://www.irs.gov/payments

 

Fed will debit your account quickly, if you put a payment in today it will debit tomorrow most likely.  states may vary but mine took a few days to debit.

 

this site also has info on penalties/interest, payment plans etc.