Cassia County, ID property tax deadlines
5 coming property tax dates for Cassia County, Idaho. Each one links to its official source and shows the day LevyDay last checked it.
| Next dates | Bills due | Last day without penalty | Appeal by | Exemption filing |
|---|---|---|---|---|
| Cassia | Dec 20, 2026 SunThe last day without penaltyState rulesee source | Dec 20, 2026 SunState rulesee source | Set by noticeState rulesee source | Apr 15, 2027tax.idaho.govJul 17 |
Deadlines in date order
| Date and source | Deadline |
|---|---|
| January 1 to April 15 every yeartax.idaho.govJul 17 | Exemption filing Property tax reduction (income-based) Apply every year with the county assessor. |
| June 20 every yearState rulesee source | Last day without penalty Pay the second half June 20 of the year after the levy year. Late pay gets a 2% charge plus 1% a month interest from January 1. |
| December 20 every yearState rulesee source | Last day without penalty Pay in full or the first half After that it's late, with a 2% charge plus 1% a month interest from January 1. If you mail it, the USPS postmark must be no later than the due date. |
| Varies, see rule see ruleState rulesee source | Bills due Bills due by the last day without penalty Pay in full or the first half by December 20, the second half by June 20 of the next year. |
| Varies, see rule set by noticeState rulesee source | Appeal deadline Appeal your value to the county board The fourth Monday in June. Value notices go out by the first Monday in June. Some counties want it by 5 p.m. |
Appealing your assessed value
Appeal by the date on your noticeState rulesee source
If you think the county valued your home too high, you can appeal. Filing with the county is free and you can do it yourself.
Get help filing an appeal
After you send your details, we look for an independent appeal firm or attorney to take your case. We'll be in touch once one has agreed. Firms usually charge a share of what you save, and the one that takes it may pay LevyDay a referral fee.
LevyDay doesn't file appeals or give legal or tax advice. We only pass your details on. The independent firm or attorney that takes your case does the work and sets its own fee.
Get help filing an appealPlaces in Cassia County
They are: Albion, Burley, Declo, Malta, Oakley. Every place in the county gets the dates above.
Nearby in the Idaho list
BonnevilleBoundaryButteCamasCanyonCaribouClarkClearwaterCusterElmoreFranklinFremont