Your 2025 State Tax Filing Calendar: When Are State Taxes Due?

If you’re wondering when are state taxes due in your state, take note—the clock is ticking. While most taxpayers are familiar with the federal April 15 deadline, state tax requirements tell a more complex story. Forty-one states impose individual income taxes on wages, and deadlines vary considerably depending on where you file.

The April 15 Standard: Most States Follow Federal Timeline

The majority of states align their tax deadline with the IRS’s April 15 cutoff. This includes Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Idaho, Illinois, Indiana, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Jersey, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, Utah, Vermont, West Virginia, and Wisconsin.

However, California residents in Los Angeles County affected by recent wildfires received special relief, pushing their state deadline to October 15 to match the IRS’s extended federal deadline for impacted taxpayers.

New Mexico offers flexibility with both options: paper filers have until April 15, while electronic filers get an extension to April 30.

Extended Deadlines: Know Your State’s Schedule

Several states deviate from the standard April 15 date. Delaware taxpayers must file by April 30, while Iowa follows suit with the same deadline. Hawaii sets its deadline slightly earlier at April 21.

States providing more generous timelines include:

• Georgia and South Carolina: May 1 deadline (extended following Hurricane Helene relief measures)
• Virginia: May 1 deadline for state returns
• Louisiana: May 15 deadline, offering the latest filing window among all states

Hurricane Relief Adjustments

Natural disasters reshaped filing deadlines for certain regions. Following Hurricane Helene, the IRS granted Alabama, Georgia, North Carolina, and South Carolina residents until May 1 to file federal returns. State tax authorities in these regions have coordinated accordingly, ensuring alignment between state and federal obligations.

Planning Your Tax Year

When are state taxes due depends entirely on your location, but regardless of your state, procrastination isn’t advisable. The key is verifying your specific state’s deadline and marking your calendar now. Many states offer electronic filing options that can expedite processing and potentially reduce errors.

Whether you’re filing on April 15 or benefiting from an extended deadline, gathering documents and consulting with a tax professional early ensures a smoother filing experience. Don’t wait until the last minute to discover state-specific requirements or relief provisions that may apply to your situation.