District of Columbia LLC
Tax Registration (FR-500)

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Tax registration is required for your Basic Business License

We will discuss how to get your Basic Business License (in an upcoming lesson), which is a requirement for every District of Columbia LLC.

However, before you can apply for your Basic Business License, you need to register your LLC with the Office of Tax & Revenue (OTR).

Once your LLC is registered with OTR, they will mail you a Notice of Business Tax Registration.

In the upper-right hand corner of this letter will be your LLC’s Notice Number.

You’ll need this Notice Number in order to apply for your Basic Business License.

Tax Registration with the OTR (FR-500)

In order to register your LLC with the OTR, you need to file an FR-500.

The FR-500 can only be filed online.

FR-500 filing fee: $0

Get started: Go to the MyTax homepage and click “Register a New Business: Form FR-500” (it’s in the middle of the page).

The FR-500 will ask you a series of questions about your DC LLC.

Note: Unlike some of our LLC formation lessons, we cannot walk you through the tax registration process step-by-step. Your answers to the questions will vary widely depending on location, industry, and how you make money.

We have explained some of the topics and made some notes below to help you understand the form. However, if you have any questions while going through your filing, we recommend speaking with an accountant.

Business Activity Code (NAICS)

An NAICS Code (North American Industry Classification System) is used by government agencies to identify an LLC’s line of business activities.

An NAICS Code is a 6-digit number. For example, the NAICS Code for Jewelry and Silverware Manufacturing is 339910.

You’ll need to choose an NAICS Code for your LLC to enter in your FR-500.

You can use the NAICS Identification Tool to find an NAICS Code for your LLC.

How to Use the NAICS Identification Tool: Search

In the “NAICS Keyword Search” box, enter a word or two that describes your LLC’s activities. For example: “nail salon”, “real estate”, or “consulting”. Look through the search results and find an NAICS Code that most closely resembles your LLC’s business activities.

How to Use the NAICS Identification Tool: Browse

Instead of searching by keyword, you can also browse all NAICS Codes by industry. Just scroll below the search box and you’ll see a list of all the industries. Click the industry to find the specific NAICS Code that most closely resembles your LLC’s business activities.

Help with NAICS Codes

If you need help determining your LLC’s NAICS Code, you can call the US Census Bureau at 888-756-2427.

Address validation

In Step 3 (General Business Information), you need to validate your address with the system. All this does is cross-reference your business address with the USPS database. The OTR does this to ensure tax notices can be properly delivered through U.S. mail.

Note: Your District of Columbia LLC’s business address can be a home address or an office address.

It’s easy to miss, but underneath the address fields is a “Validate” button.

After you enter your business address, click “Validate” and a pop-up box will appear. Click the “Unverified” red link in the upper right. It will look like this:

District of Columbia LLC FR-500 Address Validation

Then another pop-up box will appear. If the address is correct, select the “Verified” address and then click “Save“.

Date present business commenced in DC or date expected to begin

Towards the bottom of the Step 3 page (General Business Information), you’ll see a question about the date business commenced (started) or will start.

You can use the date that your LLC was approved (or the LLC Effective Date, if applicable). You can find this date on your Articles of Organization or Certificate of Organization.


In Step 4 (Officers), this is where you’ll enter the owner(s) of your LLC. Owners of an LLC are called LLC Members.

Make sure to add all of your LLC’s Members. When adding a record, in the “Title” drop down menu, use the title “Owner“.

Each owner will need to enter their Taxpayer ID Number, such as their SSN or ITIN.

What if I don’t have an SSN or ITIN?

If an LLC Member doesn’t have an SSN or an ITIN, just add any Members that have a Taxpayer ID Number now. Then later, edit your LLC’s tax profile by logging into MyTax and adding the other Member’s information.

If you need an ITIN, please see: how to apply for an ITIN.

Date on which your taxable year ends

You’ll see this question in Step 5 (Business Tax Registration).

Most filers run their fiscal year as January through December. This is known as the “calendar year” for tax purposes.

If that’s the case for your business, then the date your taxable year ends will be December 31 2024 (the current year).

If you have a different fiscal year, then enter the last date of your fiscal year.

Tax Registration Approval & Notice Number

After you submit FR-500 to the OTR, they will review and process your registration.

Then within 3 – 5 business days, you will receive a “Notice of Business Tax Registration” in the mail. This is an official notice that your District of Columbia LLC has been successfully registered with the OTR.

This notice will be sent to the Business Address that you entered in the FR-500.

There is a very important code (composed of letters and numbers) in the upper-right hand corner of your Notice of Business Tax Registration. It’s called your “Notice Number“.

You will need your Notice Number in order to apply for your Basic Business License, which we’ll discuss in an upcoming lesson.

Certificate of Occupancy or Home Occupation Permit

After you file FR-500 with the Office of Tax & Revenue and receive your Notice Number, you will need either a DC LLC Certificate of Occupancy or Home Occupation Permit. Our lesson will help you figure out which one is right for your business, and help you apply for it.

Office of Tax & Revenue Contact Info

If you have any questions you can contact the Office of Tax & Revenue at 202-727-4829. Their office hours are 8:15am to 5:30pm, Monday through Friday.

Matt Horwitz
Matt Horwitz
Matt Horwitz is the leading expert on LLC education, and has been teaching for 15 years. He founded LLC University in 2010 after realizing people needed simple and actionable instructions to start an LLC. He's cited by Entrepreneur Magazine, Yahoo Finance, and the US Chamber of Commerce, and was featured by CNBC and InventRight.
Matt holds a Bachelor's Degree in business from Drexel University with a concentration in business law. He performs extensive research and analysis to convert state laws into simple instructions anyone can follow to form their LLC - all for free! Read more about Matt Horwitz and LLC University.

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8 comments on “District of Columbia Tax Registration”

Disclaimer: Nothing on this page shall be interpreted as legal or tax advice. Rules and regulations vary by location. They also change over time and are specific to your situation. Furthermore, this comment section is provided so people can share their thoughts and experience. Please consult a licensed professional if you have legal or tax questions.

  1. OMG thank you so much! This entire article and the links to other articles were extremely helpful. I learned more from reading this than I did speaking with certain reps at the tax office. Two gave me the wrong info. (One told me to file D20 although I’m not taxed as an S or C Corp 😫 After placing several calls, and being mysteriously disconnected about five times after being on hold for 20 minutes, the last representative was the only one that gave me the correct info.

    • Oh wow LOL! Glad you were able to navigate all those phone calls! And you are very welcome. We’re happy we could help make things simpler :-)

  2. Does every LLC need to file the tax registration once you receive the EIN .

  3. Hey Matt, love this resource… it’s helped me so much in starting my business in DC. Wanted to just flag this page because the FR-500 seems to have changed a little bit. there is now a page asking you if all kinds of taxes apply to you, then individual pages for every tax that does. I sorted it out with a rep from the DC gov. on the phone.

    Might be more detail than you care to go into in these lessons (there were A LOT of options), but wanted to mention it.

    • Hey Byron, that is wonderful to hear! We made a note in this lesson stating that we can’t go into too much detail on the FR-500. The reason why is this tax registration process varies a lot and the form is conditional, so certain people see certain questions depending on how they answer. From a lesson-writing perspective, it’s quite a beast. Since it’s such a complicated process, it’s really best done with an accountant. Thank you for your understanding.

      • Oops! must have skimmed over that part. You all go above and beyond. Look for my donation to your site soon.

        • It’s all good Byron. We don’t expect everyone to read every word ;) Thanks so much!

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