How To Get An Idaho Seller’s Permit For LLCs – 2026 Guide

An Idaho Seller’s Permit is a mandatory registration that every business selling or promoting taxable goods and/or services to consumers in the state must get. Once obtained, you can legally collect, report, and remit Sales Tax to the Idaho State Tax Commission (ISTC). 

In this guide, I will show you a comprehensive overview of the Idaho Seller’s Permit filing procedures. You’ll learn how to complete your filing online and by paper, the requirements, and the dangers of trying to operate without completing your Idaho Sales Tax registration.

Idaho Seller’s Permit Overview

If your Limited Liability Company (LLC) sells taxable goods or services, meets certain sales thresholds, or has a business presence in the state, you will need to pay Idaho’s 6% State Sales Tax. To do this, you must first obtain a Seller’s Permit from the ISTC. These requirements are stated under I.C. §63-3620.

You have two types of seller’s permits in Idaho:

1. The regular seller’s permit.
2. The temporary seller’s permit.

My guide focuses on the regular permit as it’s the most common one. If you need a temporary permit, read the official state guide.

The regular permit is free to obtain and has no annual renewal requirement, as long as your LLC remains active and in compliance.

You must get a permit for each of your operating locations (if you have more than one). However, they all share the same permit number. You also have to display your permit at each business location in a place where it can be easily seen.

To obtain a seller’s permit, you have to register your business with the ISTC. There are two methods:

• Online: Via the Business Registration System. You should receive your permit in approximately 10-15 business days.
• By mail: Complete the Business Registration form (IBR-1). Your filing may take up to 4 weeks to be approved.

I recommend reviewing the official guide for full details. This is because your registration process may include other tax requirements. You can also use the Business Wizard tool to identify your required taxes and registrations.

Once you’ve obtained your permit, file your return online via the TAP (Taxpayer Access Point) portal. Alongside this, you need to report your sales tax returns to the ISTC by mail or in person. 

1. Who Needs To Complete An Idaho Seller’s Permit Application?

In-state businesses generally need a seller’s permit if they meet the following requirements:

• You sell or promote taxable goods or services to consumers.
• You make more than 2 sales within 12 months (unless you qualify as a small seller).
• You sell goods and improve real estate property (e.g., contractor retailers).
• You sell to state customers who won’t resell or lease the product.
• You have a physical business presence in Idaho.

Out-of-state businesses may need a seller’s permit if they have a sufficient connection (nexus) with the state:

• You make more than $100,000 in sales in Idaho within 12 months (economic nexus).
• You make more than $10,000 in sales via referral agreements (click-through nexus).
• You have representatives in Idaho selling, delivering, installing, or taking orders.

2. When Is The Sales Tax Due Date?

If you require a regular seller’s permit, your sales tax filing schedule depends on your business’s sales volume. With Sales Tax reported using the accrual method, you need to report and pay tax for the period when the sale occurs, even if you haven’t received payment.

Your filing frequency is based on your business activity. This is assigned by the ISTC:

• Monthly: Most LLCs file monthly. Taxes are due by the 20th of the following month (e.g., July taxes are due August 20).
• Quarterly: Taxes are due within 20 days after the quarter ends if you owe less than $750 per quarter.
• Semiannual and Annual: You may qualify to file every six months or once per year if you’re a distributor or wholesaler with limited sales. Semiannual taxes are due on July 20 and January 20, while annual taxes are due on January 20.

Your return and payment are due on the next business day if your due date falls on a weekend or a holiday.

How To Get A Seller’s Permit In Idaho Online

You must get a business registration account to access the registration page. Scroll down to see my full guide on how to create one if you haven’t had one yet.

If you do, continue following my instructions.

1. Log In

To begin, access the Idaho Business Registration (IBRS) website. Log in with your user name and password. 

2. Start Your Registration Process

Click “New Registration.”

Then, click “I have the required information and am ready to process.”

3. Authorization

Next, follow these steps to complete the IBRS authorization section:

1. Provide your full legal name to certify your information (first name, middle name, and last name).
2. Add a contact person’s name for your registration (this can be you or an authorized representative).
3. State your contact person’s title (e.g., owner, member, manager, or advisor).
4. Add your contact person’s phone number. This must include the area code and extension (if applicable).
5. Enter your contact person’s email address.
6. Provide their fax number (optional).

Once everything is complete, click “Ok – Continue Registration” to proceed.

4. Select Your Purpose Of Registration

Choose “New Applicant” and click “Ok – Continue Registration” to proceed to the next section.

5. Business Type

To complete the business type section, follow these steps:

• Type of Business: Choose “Limited Liability Company (LLC).”
• Date business began in Idaho: This is the day that your LLC will start operating in the state (use the calendar icon if needed).
• Month tax year ends: Choose between a calendar year or a fiscal year. Pick “December” as your tax year-end if you want to use a calendar year. Your tax year will match your calendar year in this case (most LLC owners choose this option). Choose any other month to match your fiscal year if you want to use that.
• How your LLC is taxed for income purposes: Choose based on your IRS tax election. Examples include Sole Proprietorships, Partnerships, or Corporations. Most LLCs are taxed as “Partnerships”.

Click “Ok – Continue Registration” to proceed.

6. Enter Your Federal Employer Identification Number (FEIN)

In this section, enter your Employer Identification Number (EIN).

Then, click “Ok – Continue Registration” to proceed.

7. Business Name And Phone Section

Next, complete your business name and contact details section:

• Provide your LLC’s legal business name (exactly as registered).
• Add your assumed business name/doing business as (DBA) (if applicable).
• Enter your LLC’s business phone number. This can include the area code and extension (if needed).
• State your LLC’s official email address.

Once finished, click “Ok – Continue Registration.”

8. Add Your Business Addresses

a. Primary Physical Address

First, enter your business address information:

• Provide your LLC’s primary physical street address (NOT a P.O. box). If you operate outside of Idaho, state the address of an employee’s location or lodging facility.
• Add your business location.
• Choose the correct state and county.
• Enter the ZIP code.
• Confirm your country.

Click “Save Address” to continue.

b. Mailing Address

Click the provided link if your mailing address is the same as your physical address. This auto-fills the required fields.

Complete these steps if your mailing address is different:

• Add your business’s mailing street address (this can be a P.O. box).
• State the city for your mailing address.
• Choose the correct state.
• Enter your ZIP code.
• Confirm your country (e.g., USA).

Click “Save Address” to continue to the next section.

c. Forms Address

Provide the address where you would like your ISTC forms to be mailed. 

Click “Here” if your form’s address is the same as your mailing address. This will auto-fill the required fields.

Follow the steps below if you want to add a new address:

1. Provide the address where you want your official tax forms to be sent.
2. State the city, state, and ZIP code.
3. Confirm your country (e.g., USA).

Click “Save Address” to continue.

You may add different addresses for specific types of forms (optional).

d. Additional Physical Address

As stated above, if you have multiple physical locations for your business in Idaho, you need to get a permit for each of your operating locations but the state allows you to register them under one account number.

Follow the same process above to add more business addresses.

Click “Ok – Continue Registration” if you have no other physical address.

9. Select Your Primary Business Function

a. Select Major Classification

Choose the major classification that represents your business’s primary activity. If you need, you can use the search tool to find the best option.

b. Business Function Details

Following this, provide these details:

• A detailed description of the nature of your business.
• Answers relating to “Professional Employer Organization”, “Common Paymaster”, and “IRS 3504 Pay Agent”. You’ll need to follow the website’s guide and email the correct agency regarding your business situation if you answered “Yes” to any question.

To continue, click “Ok – Continue Registration.”

10. Enter Your LLC Members’ Information

After completing the primary business function section, add your LLC’s member information. You must add at least one in this section.

Once you’ve added every LLC member, click “Ok – Continue Registration” to proceed.

a. If A Member Is An Individual

Complete these steps if your LLC member is an individual:

• Select “Individual” for member type.
• Enter the member’s full name.
• Add their Social Security Number (SSN).
• Enter their phone number and email address.
• Provide their residential address (street, city, state, country, and ZIP code).
• State the member’s ownership percentage.

Once everything is complete, click “Save Entry” to add the member. Then, repeat the same steps for additional members if needed.

b. If A Member Is An Entity

Complete the following steps if your LLC member is an entity.

• Choose “Business” for the member type field.
• Enter the business member’s full legal name.
• Add their EIN.
• Provide their phone number and email address.
• Complete their business address details (street, city, state, ZIP code, and country).
• Specify their ownership percentage.

Click “Save Entry” to add the member and repeat as needed.

11. Prior Permits/Accounts Section

Check the account/permit type, enter the number, and save your entry if you’ve had any prior permits or accounts in the state.

If not, leave everything blank and click “OK – Continue Registration.”

12. Sales And Use Tax

a. Sales Tax

In this section, you must answer questions relating to your sales activities in Idaho.

As you’re completing a new application, answer “No” to the question “Do you already have an active seller’s permit for this business and location?”

Click “OK – Continue Registration” to continue.

b. Use Tax

Answer questions regarding how your business buys goods. These questions are related to your business use tax (if applicable).

Click “OK – Continue Registration” once you’ve finished. 

c. Beer/Wine And Cigarette/Tobacco

Next, answer questions about selling alcohol and tobacco products. These are based on your business activity. 

Choose “OK – Continue Registration” to proceed to the next section. 

d. Out-Of-State Retailers/Marketplace Facilitators

Finally, answer questions if you’re an out-of-state (foreign) business. Click “None of the above” if your a domestic Idaho LLC.

Click “OK – Continue Registration” to continue. 

13. Idaho Business Directory

Once you’ve finished answering the questions regarding your tax types, state whether you want your LLC to be included in the Idaho Business Directory which is free to register.

Press “OK – Continue Registration” to go to the review section. 

14. Review And Verification

Carefully review your registered tax types to make sure you haven’t missed any.

Click “Edit” next to a section if you need to make any changes.

Then, click “I have reviewed information on this page and verify it is accurate and complete” to give your consent to the terms.

Congratulations! Your application is complete.

15. The Approval Process

Once submitted, the ISTC should send your permit in around 10-15 business days via email.

Your approved permit should include your seller’s permit number and indicate how often you need to file a return and remit Sales Tax (monthly or quarterly). Alongside this, the email will contain instructions on how to get your physical permit as well as any additional requirements.

How To Create Your IBRS Account

1. Access The Website

To begin, access the IBRS website. Then, click “Create a new account.”

2. Create Your Account

Next, complete the following steps to create your IBRS account:

1. Provide your desired username in the “Username” field.
2. Create a password that meets the set requirements (at least 6 characters, 1 uppercase letter, 1 lowercase letter, 1 number, and 1 special character).
3. Re-enter your password and confirm it matches.
4. State your email address in the “Email” field.

Following this, click “Ok – Continue Registration” to proceed.

Your account is now created and ready to use. You’re logged in and can start your registration process.

How To Obtain A Seller’s Permit By Mail

If you don’t want to file for your seller’s permit online, you can complete the Business Registration form (IBR-1) paper form.

Download your form to begin. You can do this by clicking the provided link or clicking the “Download” button on the right-hand side of the screen.

The paper form does NOT specify any mandatory printing requirements. Therefore, you can print it on standard U.S. letter (8.5 × 11 inch) paper and ensure the information is clear and legible.

1. Select Your Type Of Business

First, choose “Limited Liability Company” for your business type.

Your answer to the question “If LLC, how have you chosen to be taxed for income purposes” should be based on your IRS election (e.g., sole proprietorship, partnership, or corporation). Most LLCs are taxed as partnerships.

2. Add Your Purpose Of Registration

Choose “New Applicant.”

3. Apply For Any Necessary Permits/Accounts

Choose “Sales” to apply for your seller’s permit. 

4. Enter Your EIN

Add your LLC’s EIN.

5. State Your Legal Business Name

Add your legal business name. This must be exactly as it appears on your formation documents.

6. Enter Your Date Incorporated

State the date that your LLC was officially approved by the state. This is the date that your formation documents were approved.

7. State Incorporated

In this section, enter the state where your LLC was officially formed.

8. Enter The Month That Your Tax Year Ends

Next, enter the month when your business tax year ends. You can choose between 2 main options:

• Calendar year: Your tax year will match your calendar year (January to December) if you choose “December.” Most LLCs will choose this option for easier business operations.
• Fiscal year: You can choose any other month if you want to use a fiscal year.

9. Sales Tax Questions

Questions from sections 11 to 13 are related to your Idaho Seller’s Permit.

a. Date Business Began In Idaho

Enter the date your LLC will start conducting business in Idaho. 

b. Date Sales Or Use Begin

Provide the date that your LLC will begin selling/buying products in the state. This can be the same date stated in the “Date Business Began” section.

c. Estimated Monthly Taxable Sales

Estimate the highest amount of taxable sales that your LLC will have in any month.

10. Add Your Business Addresses

a. Primary Physical Address

Next, add your LLC’s primary physical street address (you can NOT use a P.O. box).

b. Physical Location Of Idaho Employees Or The Lodging Facility Address

List the physical location where your LLC employees will work. Alternatively, state the lodging facility where their accommodations are situated. Again, you can NOT use a P.O. box.

c. Mailing Address

Provide your business mailing address. P.O. boxes are allowed. 

d. Forms Address

Next, add the address where you want your ISTC forms to be mailed. You can use a P.O. box address for this section.

11. Provide Your Business Phone Number & Contact Person Information

Enter your LLC’s official phone number in section 18.

Follow the steps below to complete sections 19 to 22. These questions are related to your contact person’s information:

• Contact person’s name: Provide their full name and title (e.g., owner, manager, or member). This can be you or an authorized representative.
• Phone number: Give their current phone number.
• Email address: Add their working email address.
• Fax number: Optional.

12. Choose Your Nature Of Business

Provide a detailed description of the products and/or services that your Idaho LLC will provide.

Examples;

• Retail sales: Clothing, food. 
• Agricultural crops: Corn, beets. 
• General contractor: Building single-family homes.

13. List Any Prior Permits/Accounts

List the number of previous accounts if you’ve had any prior permits or accounts in Idaho. Leave everything blank if this is your first permit/account.

14. Answer The Business Function Questions

Next, answer questions related to the following:

1. Professional Employer Organization.
2. Common Paymaster.
3. IRS 3504 Pay Agent.

You can use these links to access detailed IRS filing instructions:

• Professional Employer Organizations.
• Certification program for professional employer organizations.
• Common Paymaster.
• IRS 3504 Pay Agent.

15. LLC Members Information

Complete your LLC member’s information (you must enter at least one in this section).

• Name field: List all LLC members (use each member’s legal name).
• “Officer / Shareholder” labels: Leave this field blank.
• Address of Residence: Provide the residential address of each LLC member. If a member is an entity, add their principal business address.
• Contact Information: Add each member’s SSN for an individual or EIN for an entity. Also, state their phone number and email address.
• Corp Title: Not applicable to LLCs. Leave it blank
• % owned: State the ownership percentage of each member.
• Director: Not applicable to LLCs. Mark N/A.
• Compensated: Not required for LLCs. Mark N/A unless applicable.

16. Complete The Certification Section

Next, state your full name in the “Print name” fields. Then, print your document and sign your name in the “Signature” field. Finally, enter your signing date in the “Date” fields.

17. Provide Publication Consent

Sign the publication consent section if you want your LLC to be included in the Idaho Business Directory for free. Otherwise, leave it blank. 

18. File Your Completed Paper

Place your application and additional documents (if applicable) into an envelope. Then, send it to the following address:

• Idaho Business Registration
  P.O. Box 36
  Boise, ID 83722-0410

19. The Approval Process

Once you’ve submitted your documents, you will need to wait for up to 4 weeks for them to be approved.

Once approved, you’ll receive your seller’s permit from the ISTC by mail. Your permit will show your seller’s permit number and indicate how often you need to file a return and remit Sales Tax (either monthly or quarterly).

How To Report And Pay Sales Tax After Obtaining Your Seller’s Permit

As I’ve said above, you need to create a TAP account after receiving your seller’s permit (and any applicable tax accounts). This allows you to file and remit taxes and report your sales to the ISTC.

1. Create A TAP account

Follow these steps to register for Idaho TAP and manage your seller’s permit:

1. Navigate to idaho.gov/newTAP, enter your taxpayer information, and create your login credentials.
2. Wait for a registration code to complete your setup if you don’t have a recent Idaho tax return. This will be sent by mail.
3. Log in at idaho.gov/gototap and set up your security authentication.
4. Access your dashboard. This allows you to manage your seller’s permit, file and remit your Sales Tax return, and handle any ongoing tax obligations.

Read the detailed state instructions here: TAP Introduction and Registering.

2. Filing Your Reports

You also need to report all your sales using Form 850 when paying taxes, including any sales made at events.

You can file using 3 main methods:

Why Do You Need To Obtain A Seller’s Permit In Idaho?

Your business faces penalties from the ISTC if you fail to comply with Sales Tax laws or rules. These include monetary penalties, permit suspension, revocation, or new permit denials.

1. Monetary Penalties

Under I.C. §63-3620(g), you may face the following penalties if you run your LLC without a Seller’s Permit or continue operating once it’s been suspended:

• A civil penalty of up to $100 per day.
• Each day counts as a separate violation.

2. Failure To Collect Sales Tax Penalties

Your LLC faces the following negative consequences if you file or pay late under the Tax Commission’s official guidelines:

• Interest: You owe interest on your overdue tax from the original return due date until the tax is paid. This changes annually.
• You don’t file your tax return on time: A 5% penalty on the tax due for each month that your return is late. This can reach a maximum of 25%.
• You file your return but fail to submit the tax due: A 0.5% penalty on the tax due for each month that your tax is late, up to a maximum of 25%.

3. Permit’s Suspension Or Revocation

Under I.C. §63-3620(f), the ISTC has the authority to do the following if you don’t comply with Sales Tax laws:

• Suspend your permit.
• Revoke your permit.
• Deny issuing a new permit.

ISTC Contact Information

I recommend contacting the ISTC if you have questions regarding your Seller’s Permit registration or other state tax requirements:

• Phone:
  (208) 334-7660 in the Boise area
  (800) 972-7660 toll-free
  (800) 377-3529 Idaho Relay Service (TDD) for hearing-impaired callers
• Mailing address:
  P.O. Box 36
  Boise, ID 83722-0410
• Office: See the Office Locations and Hours page. 
• Working hours: Monday to Friday, 8 A.M. to 5:00 P.M. Mountain Time (the call center is closed from 8 A.M. to 9:30 A.M. for training on the 2nd Wednesday of the month).

Frequently Asked Questions