How to File for an Extension of State Taxes in 2024?

How to File for an Extension of State Taxes in 2024?

Filing for a federal tax extension through the IRS is generally a simple process, but seeking an extension for state income taxes can often be more complex. The process for obtaining a tax extension varies from state to state. Some states grant automatic extensions to their taxpayers, while others require submitting specific forms by a designated deadline. 

Furthermore, the type of business you own, its location, and the regions where it operates all influence the process for filing a state tax extension. 

In some states, entities like partnerships, multi-member LLCs, and S Corporations might be subject to minimum tax or income/franchise tax requirements.

For those considering a state tax extension, it's advisable to consult with a CPA or tax expert. This ensures a thorough understanding of your business's requirements and the proper filing of necessary state tax extension(s).

For individuals interested in understanding the procedure, here's a basic outline of the steps involved in filing for a state income tax extension.

Step 1 - Identify Where Your Business is Obligated to Pay State Income Taxes

Every state has the authority to tax businesses operating within its borders, commonly known as having a "physical nexus." Your business is obligated to pay taxes in any state where it establishes this nexus.

The concept of state income tax nexus is akin to that of sales tax nexus

Engaging in business activities within or related to a state can activate both types of nexus. The tax amount depends on your business structure, the extent of activities conducted, and other variables.

As of now, 44 states impose an income tax. Exceptions include Alaska, Florida, Nevada, South Dakota, Texas, Washington, and Wyoming.

For sales tax, various activities, such as owning property or providing services in a state, can establish nexus. The income tax nexus is similarly triggered by activities that physically link your business to the state.

However, there are notable exceptions. Certain activities do not create income tax nexus:

  • Indirectly or directly soliciting sales of personal property in a state.
  • Offering services related to the sale of property.
  • Storing display samples or other company assets used in sales (e.g., vehicles) in the state.
  • Processing and fulfilling orders within the state provided the processing is not done there.

Activities that do establish nexus when conducted in a state include:

  • Selling services (excluding personal property)
  • Providing various services
  • Taking orders
  • Repossessing property
  • Holding inventory

Consulting with a CPA or tax expert is highly recommended to accurately determine your sales tax nexus and the corresponding tax obligations.

Step 2 - Review the Requirements of Your State Tax Authority

As previously mentioned, the regulations and deadlines for filing a state tax extension vary across different state tax authorities.

If your business is in a state that does not impose corporate state taxes, there's no need to file a state tax return or seek a state income tax extension for that jurisdiction.

However, suppose your business has operations or nexus in a state that does charge state income taxes. In that case, you'll need to familiarize yourself with the specific extension filing requirements of that state's tax authority.

To do this, visit the website of your state tax authority and look for the following:

  • The relevant form for the state tax extension.
  • The deadline for filing a state income tax extension.
  • Guidelines on how to submit a state tax extension to your state tax authority.

Note that some states may offer automatic extensions without requiring any paperwork, while others might necessitate the submission of documents by a specific deadline.

Once you understand the applicable rules and deadlines for your business, it's advisable to mark these important dates in your calendar.

Note: Submit the Appropriate State Income Tax Extension Form(s) by the Due Date. Tax filing deadlines differ among states.

Step 3 - Make Your Estimated State Income Tax Payments by the Standard Deadline

While a state tax extension grants additional time to submit your return, it does not extend the deadline for paying the taxes due.

You're required to calculate and pay your estimated state taxes by your state's regular tax filing deadline.

It's prudent to pay a bit more than your estimated tax liability for the year.

Should your state tax authority determine that you've overpaid, you will receive a refund, or you can apply the excess amount to the following year's taxes. 

Conversely, if you underpay and owe state tax at year's end, you could face penalties.

For an accurate estimation of your tax liability, it's advisable to seek guidance from a tax professional.

Step 4 - File Your State Tax Return by the Revised Due Date

It's important to note that while the standard state tax filing dates are consistent across all states, the deadlines for extended state tax returns can vary.

After securing a state tax extension, mark the new filing deadline on your calendar. Please submit a complete state tax return for your business by this extended date to avoid late filing penalties. 

Handling state income taxes and extensions can be complex, even for those experienced in tax matters.

How can Inkle help?

Let Inkle be your calm in the storm of tax season. We've got your back, effortlessly bringing your transactions into our cozy corner of the web, where our warm-hearted bookkeepers treat them with care. 

Each month, we'll send over financial reports that feel like a friendly chat – perfect for guiding your business plans, smoothing out loan applications, or prepping for state taxes. 

And don't worry about those daunting federal tax filings – we'll handle them with the same ease and friendliness. Think of Inkle as your financial friend, here to make those deadlines feel like a breeze.


  • State Tax Filing Extensions: The blog emphasizes that while obtaining a federal tax extension is straightforward, navigating state tax extensions can be more complex due to varying requirements in each state.
  • Understanding State Nexus: It highlights the importance of understanding the concept of 'nexus' in different states, as it determines where a business is obligated to pay state income taxes. The blog also points out that certain activities can trigger tax obligations in states.
  • Filing State Tax Extensions: The process for filing state tax extensions is detailed, including the need to check specific state requirements, deadlines, and necessary forms.
  • Estimated Tax Payments: To avoid penalties, it underscores the importance of paying estimated state taxes by the usual deadline, even when an extension is filed
  • Finalizing State Tax Returns: The blog advises filing the state tax return promptly by the extended due date and the consequences of missing this deadline.
  • Professional Assistance: Throughout the blog, there's a strong recommendation for consulting with a CPA or tax experienced, especially for complex tax situations.

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