The homestead deduction is the single largest property tax break available to Indiana homeowners. If you own and occupy your home as your primary residence, you're entitled to deductions that can reduce your assessed value by tens of thousands of dollars — and your tax bill by hundreds or even thousands.
Yet many Indiana homeowners don't claim it, or don't realize there are multiple components. Here's everything you need to know.
What Is the Homestead Deduction?
Indiana's homestead deduction reduces the assessed value of your primary residence for property tax purposes. There are two components:
Standard Homestead Deduction
The standard deduction is the lesser of:
- $48,000, or
- 60% of your home's assessed value
For most Indiana homes, this means a flat $48,000 reduction. A home assessed at $200,000 would have its taxable value reduced to $152,000. For homes assessed below $80,000, the 60% cap kicks in — a $70,000 home would receive a $42,000 deduction (60% of $70,000).
Supplemental Homestead Deduction
On top of the standard deduction, you receive a supplemental deduction equal to:
- 35% of the assessed value remaining after the standard deduction (up to $600,000)
- 25% of any remaining value above $600,000
Using our $200,000 example: after the $48,000 standard deduction, $152,000 remains. The supplemental deduction is 35% of $152,000 = $53,200. Total deduction: $48,000 + $53,200 = $101,200. Your taxable assessed value drops from $200,000 to $98,800.
How Much Do You Save?
The actual dollar savings depend on your local tax rate. Here's what the combined homestead deductions save at different property values and tax rates:
For a $200,000 home with a $20/thousand tax rate, the homestead deductions save approximately $2,024 per year. Without the homestead deduction, your bill would be $4,000; with it, roughly $1,976.
For a $300,000 home at the same rate, savings are approximately $2,724 per year.
The higher your assessed value and your local tax rate, the more you save.
Circuit Breaker Interaction
Indiana's circuit breaker caps homestead property taxes at 1% of assessed value (after deductions). This is a hard cap — regardless of your tax rate, your bill cannot exceed 1% of your net assessed value.
For many homeowners, the circuit breaker is the binding constraint rather than the homestead deduction. But the homestead deduction reduces the base that the 1% cap applies to, so claiming it still matters.
Who Is Eligible?
To qualify for the homestead deduction, you must:
- Own the property — You must be on the deed (or be buying on contract)
- Occupy it as your primary residence — This must be where you live, not a rental or vacation home
- Be an individual — LLCs, corporations, and trusts generally don't qualify (with some exceptions for revocable trusts)
- Claim it on only one property — You can only have one homestead in Indiana
What Doesn't Qualify
- Rental properties (even if you own them)
- Vacation homes or second homes
- Properties owned by a business entity
- Properties where you're not on the deed
How to Apply
New Homeowners
File the Homestead Deduction Application (Form HC-10) with your county auditor's office. You should file by January 5 of the year you want the deduction to take effect, though many counties accept late filings.
Existing Homeowners
If you've previously filed and nothing has changed (same property, same ownership), you don't need to refile. The deduction continues automatically.
After a Purchase
When you buy a home, the homestead deduction does not transfer automatically. You must file a new HC-10 form. Many buyers miss this and end up paying a full year of property taxes without the deduction.
Where to File
File with the county auditor (not the assessor) in the county where your property is located:
- Marion County — Marion County Auditor's Office
- Hamilton County — Hamilton County Auditor
- Allen County — Allen County Auditor
- Lake County — Lake County Auditor
Find your county to locate the appropriate auditor's office.
Common Mistakes
Not Filing After Purchase
This is the most common mistake. When you buy a home, file your homestead application immediately. Don't assume the seller's deduction transfers to you — it doesn't.
Filing on Multiple Properties
If you own multiple properties in Indiana, you can only claim the homestead deduction on one — your primary residence. Claiming it on multiple properties is fraud and can result in penalties.
Not Updating After Changes
If you move out of your homestead property (even if you still own it), you must notify the auditor. Continuing to claim a homestead deduction on a property you no longer occupy is a penalty offense.
Forgetting the Supplemental
The supplemental homestead deduction is applied automatically by the auditor — you don't need to file separately for it. But verify on your tax bill that both the standard and supplemental deductions appear.
Other Deductions to Stack
The homestead deduction is just one of several deductions and exemptions available to Indiana property owners. You can potentially stack:
- Mortgage deduction — Up to $3,000 off assessed value if you have a mortgage
- Over-65 deduction — Additional deduction for seniors meeting income requirements
- Disabled veteran deduction — For qualifying veterans with service-connected disabilities
- Solar energy deduction — For properties with solar panel installations
Is Your Assessment Accurate?
Even with the homestead deduction, you could still be paying too much if your assessed value is higher than it should be. Before focusing only on deductions, check whether your assessment reflects market value.
Use AribaTax's Property Lookup to check your assessed value against comparable sales. If you appear over-assessed, our Tax Appeal Automation product can analyze your property and file a Form 130 appeal.
The combination of proper deductions and an accurate assessment ensures you're paying exactly what you owe — no more.
Explore Your County
Look up your property's current assessed value and deductions:
- Marion County — Indianapolis
- Hamilton County — Carmel, Fishers
- Hendricks County — Plainfield, Brownsburg
- Johnson County — Greenwood, Franklin