This page helps with Property Tax tasks in Lake County, Illinois, including how to search tax records, view an account, make an online payment, and contact the right local office.

The main online path is the Lake County Treasurer Tax Search and Payment service, with related support from the Lake County Treasurer, Assessor, and Auditor.

Use the Lake County Tax Search to look up property tax records. The search page supports real property, personal property, owner or business name, mailing address, and property location searches.

  • Real property number, including dashes and the dot
  • Personal property number, including dashes
  • Owner or business name
  • Mailing address or PO box information
  • Property street address, also called the location or situs

After choosing a search type, enter the information you have and review the results carefully.

  • Select the type of search you want to run.
  • Enter the search criteria.
  • Select Search.
  • Scroll down to view the results.
  • Select View Account to view or pay the account.

For broader results, enter less information and avoid symbols, special characters, street directions, and street types when they are not needed.

Search tips by record type

Property number searches work best when the full number is entered exactly as shown on the property statement. A real property number uses a format like 45-00-00-000-000.000-000, while a personal property number uses a format like 45-000-00000-00.

For owner searches, enter the first name or business name and the last name. Shorter entries may return more results, but partial words may not match longer names. For example, a search for “John” will not return “Johnson.”

For mailing address or location searches, spell out the street or city name when you need more specific results. Avoid adding Lane, Street, Avenue, North, South, East, or West if a broader search is more useful.

Online payment and checkout fees

The Treasurer Tax Search and Payment service allows online payment by credit card or e-check. The Treasurer Tax Search and Payment page also points users to the property tax search and online payment option.

The checkout page lists accepted electronic payment methods and processing fees:

Payment method Fee
Credit card 3.0% with a $1.00 minimum of the tax amount paid
E-check $0.75 flat fee
Debit, credit, or e-check Processing fees may be applied at the time of payment

Property data and assessment information

Property tax users may also need assessment or parcel details before reviewing a bill. The Property Data - XSoft Engage site lists property data fields such as property ID, owner name, address, city, appeal, map, and detail.

The property data page includes an appeals prompt for property owners and directs owners to use Form 130 and mail it to the Lake County Assessor at Building A, 2nd Floor, 2293 N. Main Street, Crown Point, IN 46307.

Property assessment data is provided without warranties and should not be relied on alone for legal, financial, or real estate decisions.

Auditor online services

The Lake County Auditor online services site includes separate options for parcel and deduction tasks. Users can access combination requests, homestead deduction filing, and tax mailing address change requests through the Lake County Auditor online services site.

Only the homestead deduction is listed as available for online deduction filing. For real estate office help, the Auditor Real Estate page lists Building 'A', 2nd Floor, 2293 North Main Street, Crown Point, IN 46307, with public hours Monday through Friday from 8:30 am to 4:30 pm.

Tax sale information

Property owners with unpaid prior-year Spring installment taxes and special assessments may have parcels eligible for the Treasurer's Tax Sale. The Treasurer Tax Sale Information and Eligibility page explains eligibility, payment deadlines, publication, bidding, certificates, and redemption routing.

For redemption information or assuming title, the page directs users to the Lake County Auditor's Office. It also identifies IC 6-1.1-24 and IC 6-1.1-25 as the Indiana statutes governing tax sale procedures.

Property tax contacts

Use these contacts for bill questions, tax search help, assessment questions, and related property tax office support.

  • Lake County Treasurer, Building 'A', 2nd Floor, 2293 N. Main Street, Crown Point, IN 46307. Phone: (219) 755-3760. Fax: (219) 755-3776.
  • Lake County Treasurer Hammond office, 232 Russell St, Hammond, IN 46320. Phone: (219) 933-2900.
  • Lake County Treasurer Gary office, 400 Broadway, Gary, IN 46402. Phone: (219) 881-6300.
  • Lake County Assessor. Phone: (219) 755-3100.
  • Lake County Auditor. Phone: (219) 755-3120.
  • Bill questions. Email: [email protected].
  • Lake County Auditor Real Estate, Building 'A', 2nd Floor, 2293 North Main Street, Crown Point, IN 46307. Phone: (219) 755-3157. Hours: Monday through Friday, 8:30 am to 4:30 pm.

Common questions

Where can I search Lake County property tax records online?

Use the Lake County Tax Search to search by property number, owner or business name, mailing address, or property location. After results appear, select View Account to view or pay.

Can I pay a Lake County property tax bill online?

Yes. The Treasurer Tax Search and Payment service allows online payment by credit card or e-check. Credit card payments list a 3.0% fee with a $1.00 minimum, and e-check payments list a $0.75 flat fee.

What should I do if my property search returns too few results?

Try entering less information. Avoid special characters, street directions, and street types unless they are needed to narrow the results.

Which office handles property tax bill questions?

For bill questions, use the Treasurer contact listed for property tax service. The bill question email shown is [[email protected]](mailto:[email protected]).

Where can property owners find assessment or property data?

Property owners can use the Property Data - XSoft Engage site for parcel and assessment-related data, including property ID, owner name, address, city, appeal, map, and detail fields.

What online services does the Auditor provide?

The Auditor online services site includes combination requests, homestead deduction filing, and tax mailing address change requests. The online deduction filing option lists homestead deduction as the currently available deduction.