Indiana Property Tax 2026: 100% Assessment, Homestead Deductions & the 1% Circuit Breaker Cap

How Indiana Property Tax Works in 2026

Indiana levies no state-level property tax — counties, cities, townships, school corporations, and library and other special districts each set their own rates, all overseen by the state's Department of Local Government Finance (DLGF). The statewide average effective rate is approximately 0.76% of home value according to the Tax Foundation, close to the U.S. average of about 1.0%, though the effective rate on any given homestead can look very different once deductions and the circuit breaker are applied.

Indiana's system stands apart from many other states in one important way: since a 2002 assessment reform (following an Indiana Supreme Court ruling that struck down the state's old subjective valuation method), real property is assessed at 100% of its market value-in-use — there's no fractional assessment ratio to apply. Instead, Indiana relies on generous homestead deductions to shrink the taxable base for owner-occupied homes, and a hard constitutional circuit breaker cap that limits total property tax on a homestead to 1% of its gross assessed value, regardless of local rates. This guide explains the standard and supplemental homestead deductions, how the 1% circuit breaker works, Indiana's 4-year cyclical reassessment with annual trending, county rate variation, and a worked example for a $300,000 home.

Why Indiana Assesses at 100% of Value — and What That Means for You

Unlike states such as Arizona or Missouri that tax only a fraction of a home's value, Indiana assesses real property at 100% of its market value-in-use. This wasn't always the case — Indiana's old system used subjective, non-market-based valuation methods that the Indiana Supreme Court found unconstitutional in the late 1990s, leading to a comprehensive reform effective for the 2002 assessment (payable 2003) that moved the state onto a full market-value standard. Since there's no fractional assessment ratio to apply, the entire tax-reduction burden in Indiana's system falls on deductions (which reduce the taxable base) and the circuit breaker (which caps the final bill) rather than on an assessment ratio doing the work, as it does in many other states.

4-Year Cyclical Reassessment Plus Annual Trending

Since a statutory change effective July 1, 2014, Indiana counties reassess approximately 25% of parcels each year on a rolling 4-year cycle, so every property gets a full on-site or desk reassessment roughly once every four years. In the years between full reassessments, the DLGF requires each county to apply annual "trending" adjustments based on recent local sales data (submitted via a required annual ratio study) so assessed values keep pace with the market year to year rather than only updating once every four years.

How Do Indiana's Homestead Deductions Reduce Your Tax Bill?

Because Indiana taxes 100% of value with no assessment ratio, homestead deductions do the heavy lifting in reducing the taxable base for an owner-occupied primary residence.

Standard Homestead Deduction

For 2026, the Standard Homestead Deduction removes the lesser of $48,000 or 60% of the property's assessed value from the taxable base. This deduction amount is scheduled to phase down gradually through the rest of the decade under recent legislation, so the exact figure should be reconfirmed each filing year.

Supplemental Homestead Deduction

After the standard deduction is applied, a Supplemental Homestead Deduction removes a further percentage of the remaining assessed value — for 2026 this is 40% of what's left (a structural change from the prior tiered 35%/25% formula, part of the same legislative package that adjusted the standard deduction schedule).

Example: Stacking Both Deductions

A home with a $300,000 assessed value: Standard deduction removes $48,000 (the lesser of $48,000 or 60% of $300,000 = $180,000), leaving $252,000. Supplemental deduction removes 40% of $252,000 = $100,800, leaving a net taxable assessed value of $151,200 — just over half the home's full assessed value.

New for 2026: Supplemental Homestead Credit

On top of the deductions, a new Supplemental Homestead Credit introduced for the 2026 tax year further reduces the final bill by the lesser of $300 or 10% of the tax liability, applied after the circuit breaker credit is calculated.

The 1% Circuit Breaker: Indiana's Constitutional Property Tax Cap

Indiana's most consumer-protective feature is its circuit breaker, added to the state constitution by voters in 2010 (Article X, Section 1). It caps total property tax liability as a percentage of gross assessed value — the value before homestead deductions are applied — regardless of how high local nominal rates might otherwise push the bill.

The Three Circuit Breaker Tiers

• Homesteads (owner-occupied primary residences): capped at 1% of gross assessed value
• Other residential property, agricultural land, and long-term-care facilities: capped at 2% of gross assessed value
• All other real and personal property (commercial, industrial, etc.): capped at 3% of gross assessed value

How the Cap Interacts With Deductions

The circuit breaker and the homestead deductions work together but are calculated independently: deductions reduce the taxable base the tax rate is applied to, while the circuit breaker caps the final bill against the property's un-deducted gross value. In high-tax-rate jurisdictions (particularly those layering multiple overlapping school, library, and municipal levies), the circuit breaker can bind and effectively cut the bill below what the nominal rate times the deducted assessed value would otherwise produce — this is common in some Indiana cities with higher combined local rates.

Senior Circuit Breaker Credit

Homeowners 65 or older with an additional, separate Over 65 Circuit Breaker Credit get further protection: their homestead property tax liability cannot increase by more than 2% year over year, on top of the standard 1% homestead cap, subject to assessed value and income limits set by statute.

County Property Tax Rates Compared

Because Indiana's 92 counties, along with overlapping cities, townships, school corporations, and special districts, each set nominal rates independently (subject to the statewide circuit breaker caps), effective rates vary across the state. The figures below are approximate effective rates compiled from secondary property-data aggregators rather than a single official statewide per-county ranking.

Approximate Effective Property Tax Rates — Major Indiana Counties (2026)

Why These Counties Sit Above the Statewide Average

All three of Indiana's most populous metro counties run somewhat above the ~0.76% statewide average, which reflects the fact that the state average is pulled down by dozens of smaller, more rural counties with lower nominal rates and less overlapping district taxation. Hamilton County, despite having Indiana's highest median home values and among the highest median dollar tax bills, has a slightly lower effective rate than Marion or Lake because its high home values spread local levies over a larger tax base.

Worked Example: $300,000 Home in Marion County (Indianapolis)

This example walks through Indiana's full calculation chain — 100% assessment, the standard and supplemental homestead deductions, and the circuit breaker check — for a home near Indianapolis's 2026 typical value range.

Step 1: Start With 100% Assessed Value

Market value-in-use: $300,000 (Indiana applies no fractional assessment ratio, so assessed value equals appraised value before deductions).

Step 2: Apply the Standard Homestead Deduction

Lesser of $48,000 or 60% of $300,000 ($180,000) = $48,000 removed. Remaining: $252,000.

Step 3: Apply the Supplemental Homestead Deduction

40% of $252,000 = $100,800 removed. Net taxable assessed value: $151,200.

Step 4: Apply an Approximate Effective Rate Cross-Check

Using Marion County's approximate effective rate of ~0.93% applied directly to the $300,000 market value as a quick cross-check (this aggregator figure already reflects the average post-deduction burden for a typical owner-occupied home in the county):

$300,000 × 0.93% ≈ $2,790 per year

Step 5: Confirm Against the 1% Circuit Breaker Cap

The constitutional homestead cap limits the bill to 1% of gross assessed value: $300,000 × 1% = $3,000 maximum. Since the estimated $2,790 bill falls under this cap, the circuit breaker doesn't bind in this example — but in jurisdictions with higher combined local rates, it frequently does.