If you started your company in Louisiana, you should be aware that to operate your business and complete your tax responsibilities, you must register it with the state authority and have a federal tax ID (EIN) and a state tax ID number
Some US states have their own business tax laws and guidelines to manage the business environment in the state. You may find all the information you need here, including guidance on how to get your Louisiana and federal tax IDs.
Louisiana Tax ID Online Application
The Louisiana Department of Revenue issued the state tax ID for the businesses, which they can use for state tax purposes and assess multiple other operations. If you wish to get your Louisiana state tax ID number, you can apply for it online.
But before that, you should know what you need to do before you apply for the Louisiana tax ID number:
- It is recommended that you register your company as a legal entity with GeauxBIZ, the Louisiana Secretary of State.
- You should decide on your business structure, such as LLC, sole proprietorship, etc.)
- Get the federal tax ID number for businesses and entities from the Internal Revenue Service
- Have NAICS code
- Personal Info, such as ITIN/ SSN, etc.
- Full Business name and address.
The online application for the Louisiana Tax ID number is free; you can get the 10-digit number in the fastest way.
How to obtain the Federal EIN?
As you can see, you would need the federal Employer Identification number to apply for the state tax ID. However, sole proprietorships and single-member LLCs might not require an EIN in order to receive a tax ID.
Now, for the EIN application, you can follow multiple methods: if you are from the US, online, fax, or mail; however, if you are applying from outside the US or your primary business is not in the US, you can apply via phone, fax, or mail only.
The best way to apply for the federal EIN is online via the IRS EIN Assistant, where in a few minutes, you can complete the application, such as:
- Navigate to the IRS EIN Assistant and continue to the application dashboard.
- Now, choose your business entity type, like LLCs, sole proprietorships, corporations, partnerships, etc.
- Afterwards, enter your business details, location, type, and others.
- Now, enter your SSN/ ITIN in the appropriate box with other details.
- Click Submit after checking your EIN application entries.
Once you apply for the EIN, the IRS will validate your information based on your business registration and will approve your application on the same day, and you will have the EIN issued online.
You can also request the EIN to be delivered by mail, where you will receive the confirmation letter with the tax ID number.
Steps to acquire the Louisiana Tax ID number
After you obtain your federal EIN, you can move to complete your application for a Louisiana Tax ID number for state tax purposes online without paying any charges:
- Visit the Louisiana DOR website, go to the Business Service section.
- Click the Apply for Tax ID number option, and log in with your business account on the LaTAP portal.
- Next, once your business registration is complete, you can go to the Louisiana Tax ID page and enter your revenue account number.
- Next, enter all your business details and your information to complete the application.
- Once all the entries are entered, you can submit the application form and wait for approval.
What’s next after the Louisiana state Tax ID application?
Once the Louisiana Department of Revenue confirms your tax ID, you can expect the ID to be issued within a day, and you can set up your sales account, or you can do the following:
- Set up a business account in a bank
- Hire staff for the business
- Apply for company insurance
- Apply for a Louisiana state permit or business licence
- File for state tax returns
- Submit the employees’ withholding taxes
- Pay corporate tax (if applicable)
- Sales tax permit (remember it needs to be renewed within 60 days before its expiration).
- Keep your business compliant with state and federal rules.
Louisiana has sales tax compliance and other business rules; hence, you need to obtain the tax ID number for state purposes, while your federal EIN will help you in meeting the federal purposes and help you in running your business smoothly.





