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1. What are the Due Dates for Paying My Taxes?

Spring - May 10th
Fall - November 10th
(unless that falls on a Saturday, Sunday or Holiday, then payments will be due the next business day)

2. Porter County tax payment options

You can make your tax payments by phone, mail, online, in person or on the phone! Find more information about these tax payment options HERE.

Click here

3. Can I send my tax bill to the return address on the envelope?

You should mail your payment along with your payment coupon to Porter County Treasurer, 155 Indiana Ave, Suite 209, Valparaiso IN 46383. To expedite processing of your payment, please do not staple, paper clip or fasten your check to the payment coupon. 

4. When is my tax bill considered late? How is penalty calculated?

All payments received by the Treasurer's office AFTER that installments due date are considered late UNLESS:

1 - Your properly addressed payment envelope CLEARLY displays a United States Post Mark dated on or prior to the due date
2 - Your properly addressed payment envelope has been deposited with a nationally recognized express parcel carrier on or prior to the due date

Penalty calculation instructions are printed on the front of your bill.

See IC 6-1.1-37-10 for full code on post mark and penalty calculation
Click here

5. How and to whom do I address penalties on my tax bill?

If an error was made in the posting of your tax payment please contact the
Treasurer's office (219) 465-3470

All other considerations must be made to the Auditor’s office (219) 465-3445

6. Why did my tax bill go up?

Many factors affect the final amount on your tax bill. You are mailed a TS-1A along with your tax bill. The TS-1A shows every category and every change that has occurred since the prior year's billing. REVIEW the information provided on your TS-1A BEFORE you call ANY County Office. This reduces your frustration of getting transferred from office to office. Each office can only answer to their particular function. Did your ASSESSMENT increase from last year and you need to know why? Call the Assessor's Office Did your DEDUCTIONS decrease and they should not have? Call the Auditor's Office Did a Fee increase from last year? If so, call the appropriate department who is charging the fee Did the tax rate change from last year? This is determined by the State. Learn more...

Tax Bills 101

7. How can I get a receipt when I mail in my Taxes?

When you mail your tax bill to the Porter County Treasurer, provide a self-addressed, stamped envelope and the Treasurer's Office will send you a receipt. Your cancelled check can be your receipt as well. Please expect 6-8 weeks for your returned receipt.

8. How do I change my mailing address for my tax bill?

Email request to: auditoraddress@porterco.org

9. If I overpaid my taxes, when and how can I receive a tax surplus refund?

Once settlement is complete (June & December), Surplus Claim Forms are mailed to taxpayers with instructions on how to claim the surplus.
Keep in mind that the Spring overpayments are applied towards the Fall amount due. Surplus Claim Forms are only mailed when the TOTAL taxes due for the year are over-paid.

10. What is necessary for a mobile home permit to transfer title or for moving the mobile home unit?

The original title plus the trailer dimensions must be brought into the Treasurer's Office. All taxes, current and past due, must be paid prior to obtaining the permit. Payments must be made by cash or money order for Mobile Home Permit. Porter County will also collect a $10.00 Mobile Home Transfer or Moving Permit Fee.

Mobile Home Permit – State Form 7878 completed by the County Treasurer then taken to the Indiana Bureau of Motor Vehicles.
BMV - Mobile Home Permit Link - State Form 7878

11. What property tax deductions/exemptions are available to me and where do I file for them?

Categories include Homestead Credit, Mortgage, Blind or Disabled, Over 65, Energy System, Disabled Veteran, Heritage Barn and possibly more. Please contact the Auditor's Office
(219) 465-3445
Auditor@porterco.org

12. How can I find my tax information online?

Account History with Balances are available on-line and are updated nightly. Please note that a payment made on-line will show on the payment site the day it is made. This payment takes a minimum of 2 days to post to our internal system. Because of this lag and the nightly update, it will then appear that the payment has not been made. Click here

13. What do I need for the Liquor License Clearance

Bring in your completed PROPERTY TAX CLEARANCE SCHEDULE - FORM NO.1
Your ATC Permit Number is required unless you are applying for a NEW License
RENEWALS: All taxes MUST be paid CURRENT.
TRANSFERS: All taxes must be paid through the ASSESSMENT DATE. Taxes are assessed the prior year so the total due this pay year must be collected for transfers.
Payments must be made with Cash, Cashiers Check or Money Order. Personal and Business Checks are NOT accepted. We cannot fax your permits as the original county embossed seal is required by Indiana ATC.
The form can be found at Click here