2025 State Income Tax Deadlines for Individuals

When it comes to filing state income taxes, every state sets its own rules and deadlines. While many states align their due date with the IRS, several offer later deadlines, and a handful do not impose an individual income tax at all. Understanding your state’s requirements ensures you don’t face penalties, late fees, or miss out on refunds you are owed. Below is a state-by-state guide to 2025 state income tax due dates for individuals.

State-by-State 2025 Deadlines

Which states have no taxes?

Most states follow the familiar April 15 deadline, ensuring taxpayers can file state and federal returns around the same time. However, a few states stand out by offering later filing deadlines, such as Delaware, Iowa, New Mexico, South Carolina, Louisiana, and Virginia. Hawaii and Oklahoma also provide unique due dates that extend beyond April 15, giving residents additional time. Several states, including Alaska, Florida, Nevada, South Dakota, Texas, Washington, and Wyoming, do not impose a state income tax, which means individuals in those states have no filing obligation. Tennessee and New Hampshire are partial exceptions, taxing only interest and dividends rather than wages.

It’s important to note that state deadlines may shift if April 15 or the state’s chosen date falls on a weekend or holiday. In addition, state tax authorities may grant filing extensions that are separate from federal rules, so an extension at the federal level doesn’t always guarantee more time for your state return. States affected by federally declared disasters may also receive special deadline relief. Because each state can adjust deadlines based on legislation or emergencies, taxpayers should confirm their specific due date with their state’s department of revenue.

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