Direct answer
IRS accepts same-day federal tax wires and instructs taxpayers to give the completed Same-Day Taxpayer Worksheet to their financial institution.
Your bank controls availability, fees and cutoffs. The current IRS worksheet, tax type code, tax period and account transcript control; this is not tax or banking advice.
Source checked 4 August 2026: IRS — Pay taxes by same-day wire, reviewed 22 July 2026.