Lake County Commercial Property Tax Appeals

The Property Tax Assessment Board of Appeals (PTABOA) is the county-level body in Indiana that hears property tax appeals. After filing with the local assessor, unresolved disputes go to the PTABOA for a formal hearing. If the PTABOA denies your appeal or takes no action within 180 days, you can escalate to the Indiana Board of Tax Review (IBTR). The board consists of appointed members who evaluate the evidence on both sides and issue a written determination. Hearings before the Lake County PTABOA typically require well-organized comparables, an income analysis, and documentation of any property-specific conditions that reduce market value. Read our complete Indiana PTABOA guide to understand what to expect at every stage.

We represent owners of all commercial property types in Lake County, including retail, office, industrial, multifamily, healthcare, and more — across Gary, Hammond, East Chicago, Merrillville, Crown Point, Hobart, Schererville, and Munster. Each property type — from the industrial facilities lining the I-80/94 corridor to suburban retail centers in Schererville and Munster — requires a distinct valuation methodology, and our experienced team tailors each case to the specific market conditions and evidence that will be most persuasive to the Lake County PTABOA.

Lake County property owners have 45 days from the date of their assessment notice to file an appeal. This is a strict deadline — once it passes, you cannot challenge your assessment for that year. Indiana does not grant extensions or exceptions to this deadline, making it one of the tightest appeal windows in the Midwest. We recommend contacting EPTA immediately upon receiving your assessment notice — time spent waiting is time lost. Start your free review as soon as you receive your notice.

EPTA works on a contingency basis — you pay nothing unless we successfully reduce your assessment and save you money. There are no upfront fees, no retainers, and no risk. This contingency model means our interests are fully aligned with yours: we only benefit when your assessment is reduced and you save money. Many Lake County property owners are surprised to learn that professional, attorney-supported representation is available without any out-of-pocket cost. Review what property owners say about working with EPTA. Learn more about property tax appeal costs.

A successful Lake County property tax appeal is built on evidence that demonstrates your assessed value does not reflect the property's actual market value as of the assessment date. The most persuasive forms of evidence include comparable sales data from similar commercial properties in comparable Lake County submarkets, an income-and-expense analysis showing actual rent rolls, vacancy rates, and operating costs, and documentation of property-specific conditions such as deferred maintenance, environmental issues, or functional obsolescence that affect value. For post-industrial or partially vacant properties in Gary or East Chicago, a cost-approach analysis showing reproduction cost less appropriate depreciation can further support a reduction. Photographs, third-party appraisals, and evidence of structural decline in local demand are also effective at the PTABOA level and before the IBTR. EPTA compiles and presents all evidence on your behalf, ensuring it meets the evidentiary standards required at every stage of the Indiana property tax appeal process. Read our full property tax appeal evidence guide for more detail.

Yes — purchasing a property does not disqualify you from appealing the current assessment, and in many cases a recent arm's-length sale strengthens your position considerably. Indiana law recognizes the sale price of a property as compelling evidence of market value, particularly when the assessed value materially exceeds what you paid in an open-market transaction. You do not need to have owned the property during the prior assessment cycle; you simply need to be the owner of record when the appeal is filed. The 45-day filing window runs from the date of the assessment notice, not from the date of your purchase, so it is critical to review any outstanding notices immediately upon closing. If the property was reassessed following your acquisition and the new value appears inflated relative to your purchase price, EPTA can move quickly to prepare and file a well-supported appeal within the required window. Learn more about appealing property taxes after a purchase and how the PTABOA process works.

Indiana's trending methodology uses broad market adjustment factors — derived from countywide and neighborhood-level sales data — to update assessed values between reassessment cycles rather than conducting individual property appraisals each year. In Lake County, this approach creates particular problems because the county's property markets are not uniform: trending factors calibrated to the more active suburban markets of Merrillville or Crown Point can be applied across the board, pushing up assessed values for industrial or commercial properties in Gary and East Chicago that are experiencing flat or declining demand. A property facing high vacancy, deteriorating infrastructure, or the legacy of heavy industrial use may receive the same upward trending adjustment as a fully occupied suburban retail center, producing an assessed value that has no relationship to what a buyer would actually pay. Understanding why commercial property taxes increase under this methodology is the first step toward identifying whether your Lake County property is a candidate for appeal.