North Dakota sales tax is filed online through ND TAP (Taxpayer Access Point), the portal run by the North Dakota Office of State Tax Commissioner, on the state's sales, use, and gross receipts tax return. Monthly returns are due on the last day of the month after the reporting period, and quarterly returns on the last day of the month after each calendar quarter. A return is required every period, even when no tax is due.
This guide covers who files and how often, how to file in ND TAP, how to handle destination-based local rates, how to report no sales, how to amend a return, the deduction North Dakota allows for filing on time, and what late filing costs.
This article is educational information, not tax advice. Filing rules, thresholds, and penalties can change, so confirm current requirements with the North Dakota Office of State Tax Commissioner before you file.
North Dakota sales tax filing at a glance
- Who administers it: North Dakota Office of State Tax Commissioner.
- Online portal: ND TAP, at tap.tax.nd.gov. The Commissioner describes it as free and secure.
- Return: Sales, use, and gross receipts tax return, filed through ND TAP.
- Filing frequency: Assigned when you apply for your permit. The Commissioner's deadline calendar lists monthly, quarterly, semi-annual, and annual sales and use tax returns.
- Due dates: The last day of the month after the reporting period. When that day is a weekend, the Commissioner's 2026 calendar moves the due date to the next business day.
- Zero returns: Required every period.
- State rate: 5% on most retail sales, plus city and county local taxes.
- Deduction for filing on time: 1.5% of the tax due, capped at $110 per return, under the North Dakota Century Code.
- Economic nexus: Taxable sales into North Dakota above $100,000 in the current or previous calendar year.
Who has to file, and how often
A business with a physical presence in North Dakota that makes taxable retail sales holds a sales, use, and gross receipts tax permit and collects North Dakota and local taxes. Our North Dakota sales tax guide covers registration and nexus in more detail, and our North Dakota sales tax exemptions guide covers what is and is not taxable.
Out-of-state sellers are covered by the small seller exception. The Commissioner's Sales and Use Tax page says a remote seller must collect only if its taxable sales into the state exceed $100,000 in the current or previous calendar year. Once the threshold is met, the seller must obtain a permit and begin collecting on sales delivered during the following calendar year, or beginning 60 days after the threshold is met, whichever is earlier. The Century Code section on out-of-state sellers words the test as gross sales of taxable items delivered in North Dakota, so confirm with the Commissioner how your sales are counted. The Commissioner's sales tax history page notes that the separate test of 200 or more transactions was repealed, so the $100,000 figure is the only sales test those pages describe.
Marketplace facilitators collect on sales made through their marketplaces. A marketplace seller that has written certification from the facilitator does not report those sales, according to the Commissioner's marketplace facilitator page, so check it if you sell on marketplaces as well as your own site.
Your filing frequency is set when you apply for the permit, and you can contact the Commissioner's office to ask to change it. The Century Code sets the default and the monthly trigger:
| Frequency | Who it applies to | Due date |
|---|---|---|
| Quarterly | The default for permit holders | The last day of the month after each calendar quarter |
| Monthly | Businesses whose sales subject to sales and use tax for the preceding calendar year equal or exceed $333,000 | The last day of the following month |
The Commissioner may waive the monthly requirement on request for good cause, and a business that falls below $333,000 in a later year may return to quarterly filing. Monthly filers must file electronically. The Commissioner's deadline calendar also lists semi-annual and annual returns, which the Commissioner assigns, so follow the frequency shown on your account.
Before you start: get into ND TAP
You need a North Dakota sales tax permit before you can file. Apply through ND TAP, and the Commissioner recommends applying 30 days before opening for business. Permits are not transferable if you buy an existing business. Our sales tax permit overview explains the process in general terms.
To sign up for ND TAP, you create a logon and password. An authorization code is mailed or emailed to you or the business, depending on the access level you choose, and it works only for your first login. After you log in, you may need to add access to your tax accounts. ND TAP uses multi-factor authentication and lets you grant access to an employee, payroll provider, or tax preparer.
Before filing, gather your gross sales for the period, sales broken out by the North Dakota city and county where the customer received the item, and records for any sales you claim as sales for resale. The Commissioner says exemption certificates for resale must be kept in your files, not sent to the state. For wholesale sales, see our North Dakota resale certificate guide.
Step-by-step: filing a North Dakota return in ND TAP
The Commissioner's ND TAP instructions describe this path:
- Log in to ND TAP. From your Home page, click the blue Account ID link for your sales tax account.
- Find the period. The Account page lists available filing periods. Click the link for the period you are filing.
- Open the return. In the "I Want To" section of the Period page, choose the link to file, amend, or print a return.
- Complete the return. Follow the steps on screen. Enter your taxable sales by location and any items subject to use tax, and answer every required line.
- Submit and pay. After you submit, a summary page appears. If there is a balance due, ND TAP prompts you to make a payment.
ND TAP sends an email when a return is available to file, sends reminders, and warns you about missing returns. You can also file early and schedule the payment for a future date.
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Local and destination-based rate pitfalls
North Dakota's 5% state rate is only part of the total. Cities and counties can add local sales and use taxes, which the Commissioner administers on their behalf. The Commissioner's marketplace facilitator page says sales tax is calculated based on the North Dakota location where the sale is delivered, and the office publishes a Sales Tax Rate Lookup for that purpose. New local taxes and changes take effect on the first day of a calendar quarter, and updates are posted 60 days in advance.
Applying one rate to every sale leads to under- or over-collection. Our North Dakota sales tax calculator shows current rates by location. The Commissioner's guideline also notes that the cities of Bisbee, Cando, and Scranton impose a local sales tax but no local use tax.
Due dates and the weekend rule
Returns are due on the last day of the month after the period ends. The Commissioner's calendar for the rest of 2026 shows:
| Return | Period | Due date |
|---|---|---|
| Monthly | August 2026 | September 30 |
| Monthly and quarterly | September 2026 and third quarter | November 2 (October 31 is a Saturday) |
| Monthly | October 2026 | November 30 |
| Monthly | November 2026 | December 31 |
Semi-annual returns for the first half of 2026 and quarterly returns for the second quarter were due July 31. You can compare states on our North Dakota sales tax due dates page.
The Commissioner's calendar states the weekend rule directly. When the last day of a month falls on a weekend, any return, payment, or other required action is not due until the next business day. For example, January 31, 2026 was a Saturday, so those returns were due February 2. Check the calendar for the year you are filing.
Filing a zero return
You must file even if you had no activity. The Commissioner's requirements guideline says returns must be filed each period whether tax is due or not, and that if no tax is due, the return must be filed indicating that no taxable sales or reportable purchases were made for the period. It adds that if the return is not filed, the Sales Tax Compliance Section will notify the permit holder that the return is delinquent and that a penalty is due.
Amending a return
Sales, use, and gross receipts tax returns may be amended to report additional tax due or to request a refund of tax paid in error. Amendments are made through ND TAP, using the same "file, amend, or print a return" link on the period page. To get an amended return by mail instead, the Commissioner directs you to call 701-328-1246. If you receive a calculation worksheet for a return you already filed, the Commissioner says to make the correction on the worksheet and return it to the address shown.
The Commissioner's pages we reviewed do not state a deadline for amending, so confirm the time limit for your situation with the office. The Commissioner says records should be kept for three years and three months.
Payment methods
The Commissioner says sales tax returns and payments are made through ND TAP, and you can schedule a payment for a future date when you file early. The sales tax pages we reviewed do not list other payment methods or card fees, so confirm current options with the Commissioner's office at 701-328-1246 before you pay another way.
The deduction for filing on time
North Dakota lets a retailer deduct and retain 1.5% of the tax due. Under the Century Code, the combined deduction may not exceed $110 per return. The deduction reimburses the cost of record keeping, preparing returns, and remitting tax. It is allowed only if the tax is paid within the statutory deadline, although the Commissioner may allow it for good cause if a return or payment is late. Remote sellers that use a certified automated system, and certified service providers, have separate compensation rules in the same section. This comes from the Century Code rather than a Commissioner page, so confirm how the deduction appears on your ND TAP return.
Penalties and interest for late filing and payment
The Commissioner's Sales and Use Tax page and requirements guideline describe these charges:
- Late filing penalty: 5% of the tax due or $5, whichever is greater, for the first month a return is late. An additional 5% is added for each additional month or fraction of a month, up to a 25% maximum.
- Late payment penalty: 5% of the tax not paid by the deadline, or $5, whichever is greater.
- Interest: 12% per year, computed from the filing deadline to the date all tax, interest, and penalties are paid. Interest is not charged for the first month a return is late.
The guideline says penalty and interest are calculated separately for sales and use tax and for gross receipts tax. For continued failure to file or pay, the Commissioner may issue an assessment of estimated tax, place a lien on your property, or revoke your permit. Under the Century Code, the Commissioner may waive and refund all or part of the penalty and interest if satisfied that the delay was excusable.
Common mistakes to avoid
- Skipping zero returns. Every assigned period needs a return, even with no sales.
- Using one rate for every sale. Local taxes apply based on where the sale is delivered, so use the rate for the delivery location.
- Missing the switch to monthly filing. Businesses at or above $333,000 in the prior year file monthly and electronically.
- Ignoring the weekend rule. Confirm the calendar date each period rather than assuming the last day of the month.
- Paying late and losing the deduction. The 1.5% deduction requires timely payment.
- Reporting marketplace sales you did not need to. If a facilitator certified in writing that it collects and remits, the Commissioner says you should not report those sales.
If you receive a sales tax notice
A missed or late return often leads to a letter. Our North Dakota sales tax notices guide explains the notices the North Dakota Office of State Tax Commissioner sends, including Statement of Tax Due, Notice of Determination, and Collection Letter. It also covers how to ask for penalty relief: Waiver of penalty and interest. Check the date on the notice, match it to your filing period, and follow the instructions on the notice itself.
Next steps for North Dakota sellers
- Download North Dakota's due dates as a calendar file, or see them on the due dates page.
- Check the combined rate for any North Dakota address.
- Get the North Dakota resale certificate to buy inventory without paying tax.
- Check whether you have nexus in other states before your sales cross a threshold.
More state filing guides
Filing in more than one state? These step-by-step guides cover the portals, due dates, and penalties in other states. See them all in our state-by-state guide to filing sales tax online.
- How to file Minnesota sales tax online
- How to file Wyoming sales tax online
- How to file South Dakota sales tax online
Let Kintsugi file for you
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Frequently asked questions
Can I file North Dakota sales tax online for free?
Yes. The Commissioner describes ND TAP as a free and secure site for submitting returns and payments.
What form do I use to file North Dakota sales tax?
The sales, use, and gross receipts tax return, filed through ND TAP.
When is North Dakota sales tax due?
The last day of the month after the reporting period. Monthly returns are due at the end of the following month, and quarterly returns at the end of the month after each quarter. When that day falls on a weekend, the Commissioner's calendar moves the due date to the next business day.
Do I have to file if I had no sales?
Yes. North Dakota requires a return each period whether or not tax is due, indicating that no taxable sales or reportable purchases were made.
What is the economic nexus threshold in North Dakota?
Taxable sales into the state above $100,000 in the current or previous calendar year, according to the Commissioner. The Commissioner's sales tax history page notes that the separate 200-transaction test was repealed.
What if I miss the deadline?
File and pay as soon as possible. The late filing penalty is 5% or $5 for the first month, rising 5% per month to a 25% maximum, and interest accrues at 12% per year after the first month. The Commissioner may waive penalty and interest if the delay was excusable.
Sources
Checked September 29, 2026.
- North Dakota Office of State Tax Commissioner, Sales and Use Tax
- North Dakota Office of State Tax Commissioner, Sales and Use Tax Deadlines
- North Dakota Office of State Tax Commissioner, ND TAP Information
- North Dakota Office of State Tax Commissioner, Sales, Use, and Gross Receipts Tax Requirements Guideline
- North Dakota Office of State Tax Commissioner, Marketplace Facilitator
- North Dakota Office of State Tax Commissioner, Local Taxes - City and County Taxes
- North Dakota Office of State Tax Commissioner, Sales and Use Tax History
- North Dakota Legislative Branch, North Dakota Century Code Chapter 57-39.2, Sales Tax
