You cannot pay your Federal taxes owed with your State refund, they have to done separately. If you are asking if you can not pay your Federal taxes owed now, & pay later when you get your State refund, then you don't have to, but taxes owed had to be paid by July 15th to avoid any penalty & interest. The penalty & interest accumulate until the taxes are paid in full.
If you don't want to pay your Federal taxes when you file, choose to pay by check. That will get you through to transmit your return without paying. You can then mail in a check when you are ready or pay on the IRS website.
https://www.irs.gov/payments
