Understanding State Tax Extension Deadlines in 2019
In 2019, the federal tax deadline was extended to April 15th due to a holiday falling on the traditional deadline. However, not all states follow the federal extension. Some states have their own deadlines, and some even require tax filings earlier than the federal deadline. If you're a resident of a state that has its own tax deadline, it's crucial to understand your state's tax extension rules to avoid penalties and interest.
State Tax Deadlines vs Federal Tax Deadlines
While the federal tax deadline for 2019 was April 15th, state tax deadlines varied. Some states, like California and New Jersey, follow the federal deadline. Others, like Massachusetts and Virginia, have deadlines that are earlier or later than the federal deadline. A few states, such as Hawaii, Maryland, and Mississippi, have no state income tax at all.
States with Earlier Deadlines
If you're a resident of a state with an earlier deadline, it's important to plan accordingly. For example, Massachusetts residents had to file their state taxes by April 15th, 2019, regardless of the federal extension. Similarly, Virginia residents had to file by May 1st, 2019.

States with Later Deadlines
On the other hand, some states have later deadlines. For instance, Iowa residents had until April 30th, 2019, to file their state taxes. Similarly, the deadline for Louisiana residents was May 15th, 2019.
State Tax Extensions in 2019
If you're unable to meet your state's tax deadline, you can request an extension. However, it's important to note that a federal tax extension does not automatically extend your state tax deadline. You'll need to request a state tax extension separately.
How to Request a State Tax Extension
To request a state tax extension, you'll typically need to file a state extension form. The form and process vary by state. Some states allow you to request an extension online, while others require a paper form. The extension will give you more time to file your taxes, but it does not extend the time for payment. If you owe taxes, you'll still need to pay them by the original deadline to avoid penalties and interest.

State Tax Extension Penalties
If you don't request an extension and miss your state's tax deadline, you may face penalties and interest. The penalties and interest rates vary by state. For example, California imposes a 5% penalty on any unpaid tax for each month (or part of a month) the tax remains unpaid, up to a maximum of 25%. Meanwhile, New York imposes a 12% penalty on any unpaid tax for each month (or part of a month) the tax remains unpaid, up to a maximum of 12%.
State Tax Extension Deadlines in 2019
Here's a table of some state tax extension deadlines for 2019:
| State | Tax Extension Deadline |
|---|---|
| California | April 15, 2019 |
| New Jersey | April 15, 2019 |
| Massachusetts | April 15, 2019 |
| Virginia | May 1, 2019 |
| Iowa | April 30, 2019 |
| Louisiana | May 15, 2019 |
Remember, this is not an exhaustive list. It's important to check your specific state's tax extension deadline and follow the appropriate process for requesting an extension.
In conclusion, understanding your state's tax extension rules is crucial to avoid penalties and interest. If you're unsure about your state's tax deadline or how to request an extension, it's a good idea to consult a tax professional or your state's department of revenue.