Important Dates and Appointments Home » Important Dates and Appointments Important Tax Dates April 15th is the deadline to contribute to your prior year IRA or Roth IRA accounts. April 15th is the deadline to pay your prior year's income tax. Any tax due for the prior year must be paid by this date. June 15th is the initial deadline for expatriates to file their U.S. income tax returns for the prior calendar year. October 15th is the initial extension filing deadline. You must apply for this extension before June 15th. December 15th is the second and final extension filing deadline. However, you must apply for this second extension prior to October 15th of that year. Firm Appointments May 21 - 30, 2026: Tina is available for in-person appointments in Rome. January 13 - 22, 2026: Tina is available for in-person appointments in Rome. January 12, 2026: Tina is available for in-person appointments in London August 19 - 20, 2025: Tina is available for in-person appointments in Toronto.