State tax deadlines in 2025 vary by state but most states with income tax have a deadline similar to the federal tax deadline, which is April 15, 2025. Here are key points for state tax due dates in 2025:
- Most states require filing and payment by April 15, 2025.
- Some states have slightly later deadlines, for example:
- Delaware: April 30
- Iowa: April 30
- Louisiana: May 15
- Virginia: May 1
- Hawaii: April 21
- Several states do not have a state income tax, so no state tax filing is required. These states include Alaska, Florida, Nevada, South Dakota, Texas, Washington (except certain capital gains taxes), and Wyoming.
- Extensions are available in some states, with deadlines varying depending on the state.
- For example, California has a filing deadline of April 15, 2025, but offers an automatic extension to October 15, 2025, for filing (payment still due April 15).
- Some counties or regions may have special extensions if affected by disasters.
In summary, the primary due date for state taxes in most states is April 15, 2025, but it's important to check the specific due date for your state or locality and note any available extensions to avoid penalties.
