P.O. Box 88 Twin Falls, ID 83303-0088. Payments mailed for the first half taxes must be postmarked on or before December 20th and have a US postal cancellation. Make check or money order to Twin Falls County Treasurer. If the first half of Personal Property or Manufactured Housing is not paid by December 20th that half becomes delinquent and the ENTIRE TAX BECOMES DUE IN FULL. The Transient Personal Property and Occupancy tax is due by March 20th. If the first half is not paid on or before December 20th, that half becomes delinquent and a 2% late charge shall be added. Interest on the delinquent tax and a late charge is calculated at a rate of 1% per month beginning January 1st of that year. If the first half tax is not in part, late charge and interest is calculated on the remaining tax. Per Idaho code 63-902(9), the fact you do not receive a tax notice on any property does not excuse you from the taxes or late charge interest for non-payment. If you have closed a business during the year, purchased property or believe you have not received all you notices, please call 208-736-4008 to inquire.

We are open Monday through Friday from 8:00 am to 5:00 pm, excluding holidays.  We accept cash, checks, money orders and cashier checks.  We do not accept postdated checks per IC 28-22-105 and are not responsible for any fees incurred upon return of the check. All associated fees will be passed on to the consumer.  However, we strongly encourage citizens to mail in payments or use our online payment options.

For your convenience we have two drop boxes.  One is located at the north entrance and one at the east entrance.  Please see Drop Box tab for locations and pictures

Any portion of a property tax may be paid at any time, however, to avoid late charge and interest, total payment must be made in full by the due date.  No Automatic payments available.  Partial payments of any tax will not invalidate any collection process.

For your convenience we have a drop box located by the north entrance and the east entrance off of Martin Street at the county.  You must write your ten digit parcel number on your check or money order.  Do not place cash in the drop box.

The Treasurer’s Office can accept credit card payments in the office.  You can pay online with a credit card by using the  Twin Falls County Online Tax Payment Page  You  will need your 10 digit bill number (parcel number) located on your annual tax notice to use this service.  A convenience fee of 2.5% for credit cards or  $3.95 for visa debit is charged by the credit card processor on all payments made using your credit card (both via the internet & in person) .  E-Check is $2.00 fee (this option is only available online).  No part of this fee is retained by Twin Falls County.

First half due by December 20th (with a six month grace period) a 2% late charge will be added to the first half if not paid by December 20th. Interest will start accruing January 1st with a rate of 12% annually. Second half due by June 20th– a 2% late charge will be added to the second half if not paid by June 20th. Interest will date back to January 1st with a rate of 12% annually. Late personal and manufactured housing taxes that are not paid on or by the 20th are considered delinquent. The entire amount of taxes must be paid in full; the second installment option is not longer available. When any part of personal property or manufactured house tax becomes delinquent, a Warrant of Distraint is issued to the Twin falls County Sheriff for the collection of taxes. Additional charges will be added.

The taxpayer must notify the Assessor’s Office  of any mailing address changes.  Your annual tax notice will be mailed no later than the 4th Monday in November.  If you do not receive a notice by the end of the month, you should contact our office immediately.  Know the annual tax due dates:  December 20th and June 20th.  The taxpayer should know if they are responsible to pay the taxes or if their lender intends to pay the annual taxes.  If you have recently financed, review your loan documentation to determine how the taxes were handled at closing.  If you are still not clear who should be paying the taxes, please contact the title company or your lender.  Important— per Idaho code 63-902(9) the fact that you do not receive a tax notice on any property does not excuse you from the taxes or the late charge and interest for non-payment.  If you have closed a business during the year, purchased property or believe you have not received all your tax notices please call (208)736-4008