Arizona Tax Deadline 2025. For tax year 2023 and beyond, there are no optional or x&y tax tables to post due to arizona's flat tax rate of 2.5%. The erc is reported on form 941 and can be claimed against the employer’s payroll tax liability.

Payment for taxes for the fiscal year 2024 is due by march 15, 2025. Deadline for individuals who turned 73 in any year before.