When are property taxes due in Knox County, Indiana?

Knox County property taxes are due May 10. A second installment is due November 10. This deadline applies to all counties in Indiana.

What is the penalty for late property tax payment in Knox County, Indiana?

The late payment penalty in Knox County is 5% within 30 days, 10% after.

How do I pay Knox County, Indiana property taxes?

You can pay Knox County property taxes via Online, mail, in-person.

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Knox County Property Tax Due Date

Indiana

2026 Property Tax Due Dates

Official Source

Installment 1

May 10

Spring installment

Installment 2

November 10

Fall installment

Pay Taxes Online →

Penalty: 5% within 30 days, 10% afterGrace period: None

Payment Methods

Online, Mail, In-Person

Knox County Treasurer

How to Pay

Online

Pay using credit card or e-check

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By Mail

Mail check payable to Knox County Treasurer

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In Person

Visit the Treasurer's office

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Other Counties in Indiana

Adams Allen Bartholomew Benton Blackford Boone Brown Carroll

View all Indiana counties →

About Knox County

Knox County is a county in the U.S. state of Indiana in the United States. The oldest county in Indiana, it was one of two original counties created in the Northwest Territory in 1790, alongside St. Clair County, Illinois. Knox County was gradually reduced in size as subsequent counties were established.

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

Related Resources

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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.