When are property taxes due in Adams County, Idaho?

Adams County property taxes are due December 20. A second installment is due June 20. This deadline applies to all counties in Idaho.

What is the penalty for late property tax payment in Adams County, Idaho?

The late payment penalty in Adams County is 2% + 1% per month interest.

How do I pay Adams County, Idaho property taxes?

You can pay Adams County property taxes online through the county payment portal or by mail to the county treasurer.

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Adams County Property Tax Due Date

Name: Adams County Treasurer
Address: 201 Industrial Ave, Council, ID, 83612, US
Telephone: (208) 253-4561

Idaho

(208) 253-4561

2026 Property Tax Due Dates

Official Source

Installment 1in 177 days

December 20

Full payment or first half

Installment 2overdue

June 20

Second half (if split)

Pay Taxes Online →

Penalty: 2% + 1% per month interestGrace period: None

Payment Methods

Online, Mail, In-Person

🏛️

Idaho Laws That May Affect Your Property Taxes

Idaho recently changed homestead exemption rules and property assessment methods — effective January 1, 2026. See which bills passed and what they mean for your bill.

View on Tally Idaho →

Adams County Treasurer

Phone

(208) 253-4561

tspelman@co.adams.id.us

Fax

(208)253-4368

Office Address

201 Industrial Ave
Council, ID 83612

Get Directions

Mailing Address

PO Box 47, Council, ID 83612

Office Hours

Mon-Fri 8am - 5pm

How to Pay

Online

Pay using credit card or e-check

Pay Online →

By Mail

Mail check payable to Adams County Treasurer — PO Box 47, Council, ID 83612

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In Person

Visit the Treasurer's office — 201 Industrial Ave, Council ID 83612, Mon-Fri 8am - 5pm

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About Property Taxes in Idaho

Idaho property taxes are administered at the county level. Property is assessed at 100% of market value as of January 1 each year. Tax bills are typically mailed in October or November, with a December 20 deadline for the full amount or an option to pay in two installments. Idaho offers a meaningful homeowner exemption that exempts half of a home's value from taxation (up to a cap), making it one of the more generous homeowner exemptions in the western United States.

Payment & Assessment

Idaho property taxes are due December 20. You may pay in two equal installments: First installment: Due December 20 Second installment: Due June 20 of the following year Paying by the first installment date is also an option for paying in full. A penalty of 2% per month (up to 12% maximum) applies to late payments. Most counties offer online payment through the county treasurer's website. Contact your county assessor or treasurer for payment options.

Statewide framework for Idaho. Your county's specific rates and deadlines are shown above.

Other Counties in Idaho

Ada Bannock Bear Lake Benewah Bingham Blaine Boise Bonner

View all Idaho counties →

About Adams County

Adams County is a rural county in the state of Idaho. As of the 2020 census, the county had a population of 4,379, making it the sixth-least populous county in Idaho. The county seat and largest city is Council. Established in 1911, the county was named for second U.S. President John Adams. Adams County is home to the Brundage Mountain ski area, northeast of New Meadows, and the Little Ski Hill, just west of McCall.

Source: Wikipedia — content available under CC BY-SA 4.0