On this page we are describing the sales taxes in the State of Idaho, we aim to educate you on the differences that occur throughout the state so you get a better understanding of it in regards to whether you may have:

  • Have taken a new job in the are
  • Applied for a new school
  • Opened a new bank account in the state of Idaho
  • People who may be unable to find their Social Security Card or have lost it.

What is the lowest and highest sales tax in Idaho?

In the map of Idaho that is pictured below there are a total of 44 countries that are within the state. You can go directly to the page and see which area has the highest and lowest sales tax in your county of choice.

Ada Adams Bannock BearLake Benewah Bingham Blaine Boise Bonner Bonneville Boundary Butte Camas Canyon Caribou Cassia Clark Clearwater Custer Elmore Franklin Fremont Gem Gooding Idaho Jefferson Jerome Kootenai Latah Lemhi Lewis Lincoln Madison Minidoka NezPerce Oneida Owyhee Payette Power Shoshone Teton TwinFalls Valley Washington
The state sales tax for businesses and so forth is a standard rate of 6% which allows the local government to be able to collect up to another 3% on top of this:

  • the average sales tax for the entirety of Idaho is 6.044%,
  • the highest is within the Blaine County that consists of Sun Valley and this equates to 9% sales tax,
  • the lowest sales tax is in the Ada, Bannock, Benewah, Bingham County, which includes cities like Pocatello, Inkom, Mccammon, Saint Maries, Plummer, Fernwood, Santa, Blackfoot, Shelley, Pingree, Boise, Meridian, Aberdeen, Eagle, Garden City, Kuna and the sales tax in these areas total to 6%

This is a brief overview, and we suggest that you go directly to the page if you wish to get a clearer image of the different ranges of sale tax in a particular county. Please note that the ones that have an asterisk means they are below the usual county level of sales tax.

How to calculate your own sales tax in the state of Idaho.

So, what does this mean for you, if you are looking into how much sales tax you are going to charged dependant on what sort of county you are residing or working out of. You can go ahead and use a sales tax calculator which will give you a section that is exampled below.

-or- Specify Sales Tax Rate
-or- Specify ZIP Code


You do need to know the purchase ZIP code and purchase amount in order to get an accurate figure. For an example we will use the amount of $300 and see what the ranges could be from the highest area to the lowest.

In Sun Valley, ID with the highest sales tax of 9% would mean that your $300 purchase would incur a $27 sales tax, taking the total amount to $327.

Whereas in Eagle, ID the sales tax is only 6% and a $300 purchase would equate to $18 tax, taking the total to $318.

The sales tax calculator makes it as easy as it can be to find out what sort of sales tax you will be charged by simply adding the amount and the ZIP code. Though there might be some purchases that are exempt from sales taxes or have some special leniency which do need to be taken into consideration.

City Sales Tax Rate Zip-code Population
Boise 6.00% 83701, 83702, 83703, 83704, 83705, 83706, 83707, 83708, 83709, 83711, 83712, 83713, 83716, 83717, 83719, 83720, 83724, 83725, 83728, 83729, 83735 186450
Nampa 6.00% 83651, 83653, 83686, 83687 77076
Meridian 6.00% 83642, 83646, 83680 65116

Coeur D Alene

6.00% 83814, 83815, 83816 42569


6.00% 83201, 83204, 83205, 83206, 83209 41673

Twin Falls

6.00% 83301, 83303 39954

Idaho Falls

6.00% 83402, 83403, 83404, 83405 39373

Post Falls

6.00% 83854, 83877 30255


6.00% 83501 27415


6.00% 83605, 83606 23256


6.00% 83221 19761


6.00% 83440, 83441, 83460 19264


6.00% 83616 19058


6.00% 83835 17972


6.00% 83843, 83844 17155

Garden City

6.00% 83714 16431

Mountain Home

6.00% 83647 16417


6.00% 83338 15083


6.00% 83634 14859


6.00% 83442 14070


6.00% 83864 13303


6.00% 83318 12718


6.00% 83617 12006


6.00% 83858 10870

Why do I need to collect sales tax in Idaho?

You will need to collect sales tax if you have any sort of nexus there, and what this means is that if you have assets that are physical or economic then you need to do this.

Physical meaning having a tangible activity or some sort of presence in any of the states of Idaho, economic nexus is simply passing the states’ economic threshold for total revenue, or the maximum number of transactions that can occur in the period of time within the state.

Two easy ways to see if you have either a physical or economic nexus in any of the counties is the following:

  • Tangible personal property
  • Business assets or property
  • Own, renting properties
  • Made more than $500,000 in a service or content delivery in the state


  • Made more than $100,000 in sales annually
  • More than 200 transactions in the last calendar year

How do I get a sales tax permit?

The main way to go about this is to register online at the Idaho Business Gateway. Follow the steps that are presented to you and ensure that you have the following to hand to use as information:

  • Business identification information
  • Business entity
  • Location/s that you will be conducting this from
  • Date you will start collecting Idaho sales tax from a business/property
  • NAICS Code (North American Industry Classification System.)

What is the best way to file sales taxes?

Before you think of doing anything else there are three things that we recommend that you do in order to make this process as easy and smooth as possible.

First of all, find out how much tax you owe (remember the sales tax calculator we mentioned before) so that you know how much you need to pay the state at the end. Second is get onto the Idaho Department Of Taxation ready to submit them, and third have the money ready so you can make the payment straight away.

There are two main options as well to filing and paying your Idaho sales tax, these are:

  • Filing online. This is where merchants are required to file all of their sales taxes through the department of taxation in the state of Idaho, you can also pay your taxes on this platform, so it is one to keep close to you for future reference.
  • Filing by mail. Simply fill out the form UST-1, but this is not the recommended way of filing your taxes due to the possibilities of them getting lost in the post and then it could mean that you are subject to late fees if they are not filed within the allotted time.

We hope this document was able to allow you to feel more confident when it comes to sales tax in the state of Idaho depending on where you operate out of.