Do States Accept the Federal Tax Extension? State-by-State Rules for IRS Form 4868

Filing a federal tax extension using IRS Form 4868 gives you more time to file your federal tax return.

However, many taxpayers are unsure whether that same extension automatically applies to their state income tax return.

The answer depends on where you live. Some states automatically accept a valid federal extension, while others require taxpayers to submit a separate state tax extension form or make a separate payment.

Understanding your state’s rules is important because missing the correct extension process can lead to late-filing penalties, interest charges, or compliance issues.

This guide explains which states accept the federal tax extension, when additional filing steps are required, and how to stay compliant with both federal and state deadlines.

Quick Answer: Do States Accept the Federal Tax Extension?

Some states automatically accept the federal tax extension, while others require taxpayers to file a separate state-level extension form.

Even when a state accepts the federal extension, taxpayers usually must still:

• Pay any unpaid tax by the original due date
• Submit an estimated tax payment if they expect a balance due
• Follow the state’s payment rules

In other words, a federal extension gives you more time to file your return, but not more time to pay taxes owed.

The comparison table below shows which states accept the federal extension and which require a separate state extension request.

Federal Tax Extension Basics

Before reviewing the state rules, it helps to understand how the federal extension process works.

What Is IRS Form 4868?

IRS Form 4868 allows taxpayers to request an automatic extension of time to file their federal tax return.

The extension request can be submitted by:

• Electronic filing (e-file)
• Mailing the federal form
• Making an extension tax payment electronically

Most tax software allows you to file Form 4868 in minutes.

How Long Is the Federal Extension?

The IRS grants an automatic six-month extension to file your federal return.

For most taxpayers:

• Original due date: April 15
• Federal extended due date: October 15

This is often referred to as the IRS's automatic six-month extension.

Extension to File vs Time to Pay

This is where many taxpayers get confused.

A tax extension only gives you more time to file your tax returns, not more time to pay.

That means:

• Your tax liability is still due by the original deadline
• Any unpaid tax may trigger interest charges
• Late payment penalties can apply

If you expect to owe taxes, the safest approach is to submit an estimated payment when filing the extension request.

Do States Automatically Accept the Federal Tax Extension?

Some states do make things easier.

If you file a valid federal extension, certain states will grant automatic extensions at the state level. In those states, you usually do not need to submit a separate state extension form.

However, there are important exceptions.

Some states:

• Require their own extension form
• Require an extension tax payment
• Require taxpayers to file a state extension electronically

Others may accept the federal extension but still require full payment of state taxes by the original due date.

Because the rules vary by state, checking the state extension requirements is important.

States That Accept the Federal Tax Extension

The table below compares how each state handles federal tax extensions filed using IRS Form 4868.

Some states automatically accept the federal extension, while others require taxpayers to file a separate state form.

Note that payment deadlines may still apply even when the federal extension is accepted.

Examples of State Extension Rules

Here are a few examples showing how state tax extension rules can differ across the country.

Alabama

Alabama accepts the federal tax extension.

If you file IRS Form 4868, Alabama generally grants an automatic state extension. However, taxpayers must still pay any state income tax owed by the original deadline to avoid penalties.

See the full Alabama tax extension guide.

California

California automatically grants a six-month extension to file state tax returns.

However, taxpayers must still pay any state tax liability by the original due date. Failure to submit payment may result in interest charges or late payment penalties.

See the full California tax extension guide.

Georgia

Georgia accepts the federal extension.

If you file IRS Form 4868, the state generally grants a matching extension for your Georgia state tax return. However, taxpayers may still need to submit an estimated payment.

See the full Georgia tax extension guide.

New York

New York has slightly different rules.

Taxpayers must submit a state extension request if they expect to owe taxes, even if they filed a federal extension.

See the full New York tax extension guide.

Texas

Texas does not have a personal income tax, so most residents do not need to file a state tax return or request a state extension.

However, businesses and pass-through entities may still have filing obligations depending on the type of tax.

Florida

Florida also has no personal income tax, meaning most individuals do not need a state extension.

However, certain businesses may still need to follow separate state filing requirements.

Illinois

Illinois accepts the federal extension automatically for individual taxpayers.

However, any tax payment owed must still be paid by the original deadline to avoid penalties.

See the full Illinois tax extension guide.

Pennsylvania

Pennsylvania also accepts the federal extension.

But taxpayers who owe taxes should submit an extension tax payment by the original due date to remain compliant.

See the full Pennsylvania tax extension guide.

States That Require a Separate Tax Extension

Some states require taxpayers to file a separate state extension form, even if they already filed IRS Form 4868.

Examples include:

• Arkansas
• New Jersey
• New York

In these states, the federal extension does not automatically extend the state tax return.

Taxpayers must submit the correct state form or electronic filing request to receive the extension.

How to File a State Tax Extension if Required

If your state requires its own extension form, the process usually follows these steps.

Step 1 — File IRS Form 4868

Submit the federal extension request before the original filing deadline.

Step 2 — Check Your State Extension Rules

Determine whether your state accepts the federal extension automatically or requires a separate state form.

Step 3 — Submit the State Extension Form

If required, file the state extension electronically or by mail.

Some states require an extension payment voucher if you owe taxes.

Step 4 — Pay Any Taxes Owed

Even if you receive an extension of time to file, you should still pay any tax liability by the original due date.

This helps avoid late filing penalties, interest charges, and additional fees.

States Without a Personal Income Tax

Several states do not have a personal income tax, which means residents generally do not need to file a state return or request an extension.

These states include:

• Texas
• Florida
• Washington
• Nevada
• South Dakota
• Alaska
• Wyoming
• New Hampshire
• Tennessee

If you live in one of these states, you typically only need to file your federal tax return.

Find Detailed Rules for Your State

State tax extension rules can vary significantly.

While this guide provides a comparison overview, each state has its own filing deadlines, payment requirements, and extension rules.

To stay compliant, review the detailed state extension guides for your specific state, including:

• Alabama tax extension
• Georgia tax extension rules
• California tax extension guide
• New York tax extension rules

These guides explain exact filing requirements, payment options, and electronic filing steps.

Need Help Filing Your Federal Tax Extension?

Filing a federal tax extension can give you valuable time to prepare your tax return and stay compliant.

File your extension today to avoid late-filing penalties.