Understanding Cassia County Tax Rates

The overall sales tax you pay in Cassia County is the result of several layers of tax. Idaho’s state base rate is 6.0 %. On top of that, Cassia County adds a county surtax of 0.75 %. Two of the county’s incorporated municipalities—Campbell and Genesee—impose an additional city tax of 0.25 % each. For most retail purchases, these figures combine to a total sales tax rate of 7.0 %. Idaho has an income tax that is progressive and based on filing status, so residents should also be aware of that when preparing their annual returns.

What's Taxable in Cassia County?

In Cassia County, the scope of sales tax mirrors Idaho’s statewide definition. Most tangible goods—clothing, electronics, appliances, and food items (except groceries that are not prepared)—are subject to the full tax rate. Services that result in the sale of tangible property, like repair and maintenance services that include parts, are also taxable. However, there are common exemptions: fresh grocery foods, essential pharmaceuticals such as prescription drugs, and over-the-counter medications are not taxed. Also, certain items sold to qualified organizations, such as charities, may be exempt if properly documented.

Recent Rate Changes

Tax rates are not static. Local ballot initiatives can add or remove city taxes, and the Idaho Legislature can adjust the state base rate or change the definition of taxable items. Cassia County recently approved a 0.25 % surtax on a special district for road maintenance, effective July 2025; this is already reflected in the total for specific purchases but is not considered part of the county’s standard surtax. Business owners and residents should verify the current rates by checking the Idaho Department of Revenue website or contacting the Cassia County Tax Assessor’s office before making large purchases or establishing a new business.

Tips for Residents & Businesses

• Keep Receipts: Always ask for a detailed receipt that lists each tax component. This is essential for personal budgeting and for business record‑keeping.
• Use Tax Software: For online shopping, use platforms that automatically calculate Idaho state and county taxes. If the e‑teller isn’t clear, double‑check the tax field on the final checkout page.
• Take Advantage of Exemptions: If you’re a non‑profit or a school buying supplies, request exemption certificates to avoid unnecessary tax.
• Register for Sales Tax Collection Early: New businesses must register with the Idaho Department of Revenue before making taxable sales. This will give you the authority to collect and remit the correct tax rate.
• Stay Informed: Sign up for email alerts from the Idaho Department of Revenue or follow the county’s official channels. Tax changes are often announced through newsletters or local council meetings.
• Review Return Forms: When filing state income tax, cross‑check the totals reported for sales tax. Discrepancies should be reported promptly to avoid penalties.