MARION COUNTY PROPERTY TAX APPEALS
Marion County Commercial Property Tax Appeals
Indianapolis and Marion County are Indiana's largest commercial market. If your property's assessment doesn't match its market value, EPTA can help you challenge it through the PTABOA and IBTR process. No fee unless we save you money.
45 Days
Appeal Window
Indianapolis
State Capital
No Fee
Unless We Save
Indiana Filing Deadline
Marion County property owners have 45 days from the date of their assessment notice to file an appeal. This window is strict — once it closes, you cannot challenge your assessment for the current year.
MARION COUNTY PROPERTY TAX OVERVIEW
Property Tax Appeals in Marion County, Indiana
Marion County is the economic engine of Indiana, home to Indianapolis and the state's largest concentration of commercial real estate. The county's rapid growth in healthcare, logistics, and technology has driven significant development across downtown, the airport corridor, and suburban townships. While this expansion strengthens the regional economy, it also fuels aggressive property valuations that frequently overstate the market value of individual commercial properties. Understanding how commercial properties are assessed is the first step toward identifying whether your tax burden is fair.
Indiana uses a trending methodology that applies broad market adjustment factors to entire neighborhoods and property classes. This approach often fails to account for property-specific issues such as vacancy, deferred maintenance, or lease structures that reduce a property's actual value. As a result, many Marion County commercial owners find themselves paying taxes on inflated assessments. Fortunately, the state provides a formal avenue for relief through Indiana property tax appeals, but the window to act is narrow.
Property owners have just 45 days from the date of their assessment notice to file a challenge. The appeal begins at the county level through the PTABOA process, where a local board reviews the evidence and makes a determination. If the outcome is unsatisfactory, the case can be escalated to the Indiana Board of Tax Review (IBTR) for a more formal proceeding. EPTA guides commercial property owners through every stage of this process, building data-driven cases that challenge flawed assessments. Explore proven strategies for reducing your property taxes and take control of your tax liability.
Marion County is Indiana's most populous county with over 977,000 residents and the state's highest commercial property tax base
Indiana's trending methodology applies broad-brush valuation increases that frequently overstate individual property values
Property owners have a strict 45-day appeal window from the date of their assessment notice — no extensions
Appeals proceed through the PTABOA at the county level, with escalation to the IBTR if needed
Not sure if your Marion County property is over-assessed? Request a free property tax review and we'll analyze your assessment at no cost.


MARION COUNTY TAX CHALLENGES
Why Marion County Commercial Properties Are Over-Assessed
Indianapolis Growth Inflating Values
Rapid development downtown and in suburbs pushes assessed values up across the board — even for properties that haven't improved.
Trending Values Ignore Reality
Indiana's trending methodology adjusts values based on broad market data, often missing property-specific conditions like vacancy and deferred maintenance.
Complex UniGov Structure
Marion County's consolidated city-county government creates unique assessment challenges. Multiple taxing districts mean different millage rates and inconsistent practices.
Tight 45-Day Appeal Window
Indiana gives property owners just 45 days from the assessment notice to file. Miss it and you're locked in for the year.
MARION COUNTY APPEAL PROCESS
How We Handle Marion County Property Tax Appeals
01
Free Assessment Review
02
File with PTABOA
03
Negotiate or Escalate to IBTR
MARION COUNTY RESULTS
Recent Marion County Savings
Office Complex
Indianapolis, IN
/ Annual Savings
Retail Portfolio
Indianapolis, IN
/ Annual Savings
Industrial Warehouse
Speedway, IN
/ Annual Savings
Healthcare Facility
Beech Grove, IN
/ Annual Savings
MARION COUNTY MARKET
Indianapolis Is Growing — But That Doesn't Mean Your Assessment Is Right
Marion County's commercial market has expanded significantly, driven by healthcare, logistics, and downtown development. While growth benefits the region, it also means the assessor is pushing values higher across the board. EPTA works with commercial property owners throughout Marion County to challenge assessments that don't reflect individual property realities.
The Indianapolis market presents unique challenges for property owners trying to keep assessments accurate. Large-scale projects like the expansion of the Indianapolis International Airport logistics hub and ongoing downtown mixed-use development create upward pressure on valuations county-wide, even for properties in less active submarkets. Understanding Indiana's appeal deadlines is critical because the 45-day window can close before owners realize their assessment has increased substantially.
Whether you own a suburban retail center, a downtown office tower, or an industrial facility near the airport corridor, our experienced team has the local market knowledge and valuation expertise to build a compelling case for reduction. We analyze comparable sales, income data, and property-specific conditions to demonstrate that your assessment exceeds fair market value.
Indianapolis healthcare and life sciences growth is driving commercial valuations higher across Marion County townships
Logistics and warehouse demand near the airport corridor has inflated industrial assessments beyond actual market rents
Downtown development and mixed-use projects create spillover valuation increases for surrounding commercial properties
Suburban retail and office properties often absorb valuation increases despite flat or declining occupancy and rental rates

You file an appeal with the Marion County assessor within 45 days of receiving your assessment notice. If the local review doesn't resolve the issue, it goes to the PTABOA for a formal hearing. The PTABOA will schedule a hearing where you can present evidence such as comparable sales, income data, and property condition documentation. If the PTABOA ruling is unfavorable, you have the right to escalate to the Indiana Board of Tax Review (IBTR) for a de novo review. EPTA handles the entire process on your behalf, from initial filing through final resolution. Start with a free review to find out if your property qualifies for a reduction.
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. The board consists of appointed members who review the evidence submitted by both the property owner and the assessor's office. Hearings typically involve presenting comparable sales, income analyses, and other valuation evidence to support your position. If the PTABOA denies your appeal or takes no action within 180 days, you can escalate to the Indiana Board of Tax Review (IBTR). Learn more about the PTABOA process and how EPTA manages the entire process on your behalf.
We represent owners of all commercial property types in Marion County, including retail, office, industrial, multifamily, healthcare, and more — across Indianapolis, Speedway, Beech Grove, Lawrence, and Southport. Each property type requires a tailored valuation approach, whether it's an income-based analysis for office and retail or a cost approach for specialized healthcare and industrial facilities. Our team understands the nuances of Marion County's diverse commercial market and builds cases specific to your property's characteristics and submarket conditions.
Marion 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 offer extensions or exceptions to this filing window, making it one of the tightest deadlines in the Midwest. We recommend reviewing your assessment notice immediately upon receipt and contacting EPTA right away if the value appears inflated. Check the full list of property tax appeal deadlines and 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 model aligns our interests directly with yours: we only succeed when you save. Many commercial property owners are surprised to learn that professional representation is available at no out-of-pocket cost, making it a low-risk way to potentially achieve significant tax savings. Learn more about property tax appeal costs.
A strong Marion County property tax appeal relies on solid, property-specific evidence that demonstrates your assessed value exceeds fair market value. The most common types of evidence include comparable sales data from similar properties in the area, an income analysis showing actual rental income and operating expenses, and documentation of property condition issues such as deferred maintenance, environmental concerns, or functional obsolescence. Photographs, rent rolls, and third-party appraisals can further strengthen your case. EPTA compiles and presents all evidence on your behalf, ensuring it meets the standards required by the PTABOA and IBTR. Read our comprehensive property tax appeal evidence guide for more details.
Yes, you can absolutely appeal your Marion County property taxes after purchasing a property. In many cases, a recent purchase actually strengthens your appeal because the sale price serves as strong evidence of market value — particularly if the assessed value exceeds what you paid. Indiana law does not require you to have owned the property during the prior assessment period to file an appeal; you simply need to be the current owner of record. The 45-day filing window applies from the date of the assessment notice, regardless of when you acquired the property. Learn more about appeals after purchase and the Indiana appeal process.
Property tax appeals in Marion County have a strong track record of success when supported by credible evidence and professional representation. While individual outcomes depend on the specifics of each case, commercially focused appeals that present comparable sales, income data, and property condition documentation tend to achieve favorable results at both the PTABOA and IBTR levels. EPTA's data-driven approach and deep familiarity with Marion County's assessment practices give our clients a significant advantage. Explore our insights on property tax appeal success rates and see our client results for examples of what we've achieved.
ALSO SERVING
Other Indiana Counties & Resources
Indiana Property Tax Appeals — Statewide overview and all counties we serve
Lake County Property Tax Appeals — Gary, Hammond, and surrounding communities
2026 Property Tax Appeal Deadlines — Key filing dates for IN, MI, and OH
How to Appeal Commercial Property Taxes — Step-by-step guide
Office Property Tax Appeals — Office buildings and commercial office space
Get a Free Property Tax Review — No fee unless we save you money
LEARN MORE
Marion County Resources & Guides
How to Reduce Commercial Property Taxes — Proven strategies
Indiana PTABOA Guide — Understanding the appeal process
Property Tax Appeal Evidence Guide — What you need
DIY vs. Professional Property Tax Appeal — Make the right choice
Property Tax Appeal Costs — What to expect
2026 Property Tax Deadlines — Don't miss your window
