Marion County, IN Property Tax Appeal Guide for 2027

Marion County, Indiana property tax appeals for tax year 2027

Marion County homeowners generally begin a 2027 assessment appeal by filing Indiana Form 130 with the local assessing official. For the regular 2027 cycle, this page treats June 15, 2027 as the Form 130 deadline when the Form 11 notice is mailed before May 1. If the Form 11 is mailed on or after May 1, the Form 130 instructions say the deadline shifts to June 15 of the year the tax statement is mailed, so the date printed on your Form 11 or tax bill should control if it differs from this page's general deadline. Indiana Form 130 instructions

Indiana's DLGF describes the process as starting locally, followed by an informal conference. If the issue is not resolved, the appeal is forwarded to the county Property Tax Assessment Board of Appeals (PTABOA). A PTABOA determination can later be appealed to the Indiana Board of Tax Review, and then to the Indiana Tax Court if the law allows. DLGF property tax appeal guidance

The valuation date and best sale window

The target valuation date for the 2027 Marion County assessment is January 1, 2027. Indiana's assessment manual describes true tax value for non-agricultural real property as market value-in-use and ties value to the applicable assessment date. For a 2027 residential value appeal, the most relevant comparable-sale window is January 1, 2026 through December 31, 2026. Sales outside that period may still be useful, but they usually need a clear explanation or time adjustment showing why they indicate value as of January 1, 2027. Indiana assessment manual

Comparable sales should be arm's-length, open-market transactions that reflect the market value-in-use of the real property. Screen out or adjust for unusual financing, personal property, gift programs, long-term leases, non-allocable multi-parcel transactions, suspect sale circumstances, incomplete data, and major changes in condition or use between the assessment date and the sale date. Indiana's sales-study rule also calls for sale-date adjustments when needed. 50 IAC 27-4-7

For assessment-comparison evidence, Indiana Code permits comparable-property assessments from the same taxing district or within two miles of a taxing-district boundary, with comparability judged under generally accepted appraisal and assessment practices. No researched statewide or Marion County source sets a strict gross-living-area variance, lot-size variance, or fixed number-of-comps cap for this page. Use the most similar properties you can find and explain meaningful differences. Indiana Code section 6-1.1-15-18

Choose the right Form 130 reason

For a residential value appeal, the most common fit is Subjective appeal: current year's assessed valuation is incorrect. This is the reason to use when comparable sales, an appraisal, income evidence, construction-cost evidence, condition documentation, or other generally accepted appraisal evidence supports a lower market value-in-use than the assessment.

Form 130 also includes objective issues. These include Objective appeal: assessment was against the wrong person, Objective appeal: deduction, credit, exemption, abatement, or tax cap issue, Objective appeal: clerical, mathematical, or typographical mistake, Objective appeal: property description is incorrect, and Objective appeal: legality or constitutionality of a property tax or assessment. Use these when the evidence is about a factual, legal, or administrative issue rather than a market-value dispute.

What to organize before filing

TaxSauce can help estimate value, organize comparable sales, prepare an evidence packet, and help you decide which official reason fits your facts. You review the information, choose what to include, and submit the filing or share it with the appropriate office.

Useful evidence may include:

• Comparable sales from the 2026 valuation period.
• A professional appraisal with an effective date relevant to January 1, 2027.
• Photos, repair estimates, or inspection notes showing condition issues.
• Property record card corrections, such as square footage, basement finish, garage, land, or improvement errors.
• Assessment comparisons allowed under Indiana Code.
• Written explanations for differences between your property and each comparable.

Estimating the tax impact

This page uses an approximate Marion County effective tax rate of 0.0119, or 1.19%, for modeling only. Actual tax impact depends on the property's taxing district, deductions, credits, exemptions, abatements, and Indiana circuit-breaker caps. A lower assessed value may reduce the bill, but it may not reduce taxes dollar-for-dollar.

For a Marion County volume example, Indiana public-court records describe one HOA dispute involving 141 Forms 133 related to Marion County common-area assessments for earlier assessment years. That example shows that Marion County assessment disputes can involve many filings, but it is not a homeowner success rate and it does not predict any 2027 Form 130 outcome. Indiana public-court opinion