How to pay Ada County, ID property tax
✓ Verified — Last verified October 24, 2026
Payment details from the official sources for Ada County. Check the tax year and parcel on your bill before submitting a payment.
Pay on the official siteNot tax or legal advice; confirm with your county.
Payment methods and fees
Accepted methods
E-check, Debit card, Credit card, Bank bill pay, Check, Money order, Mail, Drop box, In person, Phone
Official source. Verified .
Published fees
E-check: $3 for totals under $500,000, $10 for totals over $500,000. Debit card: $3.95. Credit card: 2.4%, minimum $2.
Official source. Verified .
Published installment dates
Tax year 2026. Dates retain the year published by the source.
Published late-payment rule
A missed December installment incurs a 2% late charge and 1% monthly interest beginning the following January 1. A missed June installment incurs a 2% late charge and 1% monthly interest back to January 1 of that year.
Official source. Verified .
Official offices
Ada County Treasurer’s Office
Sources for these instructions
https://adacounty.id.gov/treasurer/
Access your property tax bill, payment history, and make secure online payments through the Ada County Treasurer’s Paydici website.
Verified October 24, 2026
https://adacounty.id.gov/treasurer/payment-options/
E-checks: Debit card: Credit card: Bill Pay: DROP BOX IN-PERSON PAYMENTS Make checks or money orders payable to: PHONE PAYMENTS
Verified October 24, 2026
https://adacounty.id.gov/treasurer/payment-options/
Flat fee of $3.00 for transaction totals under $500,000, or flat fee of $10.00 for transaction totals over $500,000. Flat fee of $3.95 2.4% of transaction total, minimum of $2.00
Verified October 24, 2026
Continue with your property
Common questions
Where can I pay Ada County property tax?
Official payment portal: https://www.paydici.com/ada-county-id/search/property-tax. E-check, Debit card, Credit card, Bank bill pay, Check, Money order, Mail, Drop box, In person, Phone