Allen County Treasurer’s Office

Allen County, Ohio

Welcome to the Treasurer's Office

We are open for in-person tax or sewer payments Monday – Friday, 8am – 430pm.  Please be sure to check below in the Important News section for any changes to this schedule.  We are closed on all federal holidays.  Payments can be made by cash, check, credit card, or by electronic-check. There is convenience fee charged by the processor, not the Allen County Treasurer’s office, to pay using a credit card or electronic check. Click HERE to make a payment online.  To make payments by phone, please call 1-419-765-6401.  If you are delinquent on your taxes or have any questions, PLEASE CONTACT US!  We are here to help and look forward to assisting you!
 
 MAKE ONLINE PAYMENT
  
 IMPORTANT NEWS/UPDATE:
 First Half Real Estate and Mobile Home Taxes are due Friday February 13th, 2026. 
 
Notice of possible tax adjustment: Recent Legislation has established an inflation cap for certain property value increases that may impact your tax bill. However, the legislation is not effective until later in March 2026 and adjustments will not been seen until the 2nd half 2025 Payable 2026 tax bills. Please note not all parcels will be eligible for the credit.
 
 
Important Notice Regarding Mailed Property Tax Payments and USPS Postmarks

Taxpayers who choose to mail their property tax payments should be aware of recent changes made by the United States Postal Service (USPS) postmark practices that may affect how payment timeliness is determined.

Under updated USPS policy, the date printed on a postmark usually reflects when the mail piece is first processed by USPS sorting machinery, not necessarily the date the payment was placed in a mailbox or dropped off at a post office. This processing can occur one or more days after drop-off, particularly during periods of high mail volume.

Because Ohio Law relies on the postmark date to determine whether a mailed payment is timely, taxpayers mailing payments close to a due date are strongly encouraged to:

* Allow additional mailing time, or

* Inquire at their local post office about postmark procedures and processing timelines, or

* Request an in-person hand-stamped postmark at the post office counter, or

* Use an alternative payment method such as paying in person, credit card, or e-check to ensure timely receipt. 

Payments that are postmarked after the due date may be subject to penalties as required by law.

 
 

Changes in Office Hours:

  • Office closed February 16th, 2026 in observance of President’s Day.

A Vibrant County in Northwest Ohio

Important Dates-Allen County Treasurer's Department

Important Dates for 2025/2026

Payments, Town News

Allen County Important Dates Real Estate & Manufactured Home Deadlines Set 1st Half  – Friday, February 13th, 2026 2nd Half –... Read More → Important Dates for 2025/2026

Things to do in Allen County

Leisure

Allen County offers something for everyone whether you are looking for great dining options, enjoying nature, or a fun family outing.... Read More → Things to do in Allen County

Voter Registration-Allen County Treasurer's Department

Voter Registration

Town News

The Ohio Revised Code section §3503.10 designates each of Ohio’s 88 County Treasurers’ Offices as Voter Registration Sites. You may... Read More → Voter Registration

Important Dates

 
2025 Real Estate & 2026 
Manufactured Home Due Dates:

 1st Half  – Friday, February 13, 2026
2nd Half – Friday, July 10, 2026

Sanitary Sewer Due Dates:
3rd Quarter 2025: December 5th, 2025
4th Quarter 2025: March 6th, 2026
1st Quarter 2026: June 5th, 2026
2nd Quarter 2026: Sept 4th, 2026
 3rd Quarter 2026: Dec 4th, 2026
 
Allen County Courthouse
Office Address:

301 N Main St Ste 203
Lima OH 45801
(419) 223-8515 Phone
(419) 222-7852 Fax
treasurer@allencountyohio.com

Mailing Address:

PO Box 123
Lima OH 45802-0123

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