How to Apply for the Marion County Homestead Exemption and What It Actually Saves You
Marion County homeowners who bought in the past 12 months are leaving more than $1,200 a year on the table. A plain-language guide to what Indiana's most valuable property tax break actually does —…
Marion County homeowners who bought in the past 12 months are leaving more than $1,200 a year on the table. A plain-language guide to what Indiana’s most valuable property tax break actually does — and exactly how to claim it before the deadline.
If you bought a home in Indianapolis in the past year and haven’t filed for your homestead exemption, there’s a reasonable chance you’re overpaying your property taxes by somewhere between $1,000 and $1,300 annually. Not because you did anything wrong. Nobody told you to file. Your closing documents didn’t come with a reminder. And the Indiana Department of Local Government Finance’s official guidance reads like a statute because it essentially is one.
This guide exists to fix that. It covers who qualifies, what the exemption is worth in actual dollars on a real Indianapolis home, exactly how to file online or in person, and what happens to your mortgage payment afterward. Work through it as a checklist and file the same day you finish reading.
One thing before you start: verify the current filing deadline directly with the Marion County Assessor’s office at (317) 327-4907. Indiana Code IC § 6-1.1-12-37 has historically pointed to a January 5 deadline, while other county guidance has cited October 31. I’ll be honest — I went back and forth on this while reporting, and the Marion County Assessor’s office is genuinely the only authoritative source for which date applies to your 2025 filing. Getting that date wrong costs you an entire year of savings — roughly $1,200 with no mechanism to recover it retroactively — so confirm it before anything else.
Step 1. Check Whether Your Exemption Is Already on File
Before you do anything else, find out if someone already filed for you. It takes about two minutes.
Go to assessor.indy.gov and use the property search tool. Search by your property address or your parcel number, which appears on your closing documents or any property tax notice from Marion County. Pull up your parcel record and look at the deductions section. If a homestead deduction is listed, you’re covered. Stop reading.
If it isn’t there, you need to file.
The most common reason first-time buyers discover a missing exemption is this: My title company handled it at closing. Some local title companies do file the homestead exemption as a courtesy to buyers. Some don’t. There’s no legal requirement that they do so, and no standardized practice exists across Marion County firms. The omission rate runs meaningfully higher in transactions involving iBuyers, national homebuilders, or out-of-state title operations — all of which represent a significant share of Indianapolis closings in recent years. (If you bought from one of the larger national homebuilders that’s been active out in Westfield or Whitestown, this is especially worth checking.)
CityDesk sought on-record comment from a Marion County title company about closing-day filing practice; this piece will be updated with that response. The key point: don’t assume it was done. Check the parcel record. If you bought in spring 2025 and the homestead deduction doesn’t appear in your property record, it almost certainly wasn’t filed.
Step 2. Confirm You Qualify
The homestead exemption has no income limit. This is the single most common misconception about it — people conflate it with the Over-65 Circuit Breaker credit, which does carry income restrictions. The standard and supplemental homestead deductions are available to any Indiana homeowner who meets these conditions, as explained further in our property tax and homeowner legal & finance coverage:
The property must be your primary residence. Specifically, it must be your principal place of residence as of January 1 of the assessment year for which you’re claiming the deduction. If you closed on your home in March 2025 and it became your primary residence then, you’re generally eligible to claim the deduction for that assessment year. Confirm the precise timing with the Assessor’s office, because the January 1 date matters and edge cases around it do come up.
You can only claim one homestead in Indiana. If you own multiple properties, the exemption applies to the one you actually live in. Claiming it on a second home or rental property isn’t permitted and is treated as improper filing. No exceptions.
You must be the owner of record. Renters don’t qualify. The deed needs to show your name.
LLC-held properties don’t qualify. If you purchased your home through a limited liability company — a structure occasionally used by investors or self-employed buyers — the property is ineligible for the homestead deduction.
A growing share of Indianapolis homeowners hold property in a revocable living trust for estate-planning purposes. If your home is titled in a qualifying revocable living trust and you’re the beneficial owner who occupies the home as your primary residence, the property is generally eligible for the homestead deduction under Indiana law. This matters because the online filing system may flag a trust as the owner and prompt confusion. If your property is trust-held, bring your trust documentation and consider filing in person or calling the Assessor’s office directly at (317) 327-4907 before filing online.
If you rent out a portion of your home — a basement apartment, for example — the homestead deduction applies only to the owner-occupied share.
Step 3. Understand What You’re Actually Claiming
Most coverage of the homestead exemption treats it as a single benefit. It’s actually two stacked deductions that work together. Understanding both lets you calculate your real savings — and the second one is the part most guides either omit entirely or mention without showing the math.
The standard homestead deduction is governed by IC § 6-1.1-12-37. It reduces your property’s net assessed value by 60 percent, up to a maximum of $45,000. On most homes in the Indianapolis median-price range, you’ll hit that cap. The supplemental homestead deduction is governed by IC § 6-1.1-12-37.5. It applies after the standard deduction and reduces the remaining assessed value by an additional 35 percent on the first $600,000 of remaining value (with a lower percentage above that threshold, which doesn’t apply at typical Indianapolis home values).
Here’s what the stacked math looks like on a $285,000 assessed value, which sits near the middle of the Marion County range for homes purchased in 2024 and 2025:
| Assessed Value | |
|---|---|
| Starting assessed value | $285,000 |
| Minus standard deduction (capped at $45,000) | −$45,000 |
| Remaining AV after standard deduction | $240,000 |
| Minus supplemental deduction (35% of $240,000) | −$84,000 |
| Net taxable assessed value | $156,000 |
That’s a reduction of $129,000 in taxable assessed value — from $285,000 down to $156,000 — before any other deductions or credits apply. To translate that into actual tax dollars, you apply the effective tax rate for your township. Marion County’s effective rates vary meaningfully by township, which I’ll get to in a moment. The following figures should be verified against 2025 pay-cycle tax bills at treasurer.indy.gov before publication, as rates shift each cycle. At an effective rate of approximately 0.95 percent — roughly representative of several Indianapolis townships on owner-occupied residential property — the annual savings on a $285,000 home comes to approximately $1,226 per year.
A $305,000 home looks like this:
| Assessed Value | |
|---|---|
| Starting assessed value | $305,000 |
| Minus standard deduction (capped at $45,000) | −$45,000 |
| Remaining AV after standard deduction | $260,000 |
| Minus supplemental deduction (35% of $260,000) | −$91,000 |
| Net taxable assessed value | $169,000 |
The taxable AV drops by $136,000. At the same approximate effective rate, annual savings come to roughly $1,292.
One important local nuance: Center Township homeowners will see larger actual dollar savings on identical assessed values than Perry or Warren Township homeowners, because township tax rates differ. The percentage reduction in taxable AV is the same everywhere. The dollar amount saved depends on your specific township rate. You can find your township’s rate on your most recent property tax statement or at treasurer.indy.gov.
All figures above are flagged for verification against the 2025 pay-cycle tax bills before publication.
Step 4. File Online Through the Marion County Assessor’s Portal
The large majority of readers will file online, and the process is more straightforward than the DLGF’s documentation suggests.
Go to assessor.indy.gov. This is the Marion County Assessor’s official portal. Note that the DLGF maintains its own statewide gateway, and the two sites have caused genuine confusion in recent years — I’d confirm you’re on the right one before you start entering personal information. Both handle deduction-related information, but you want the Marion County Assessor’s own portal for the actual filing. If you’re uncertain you’re on the right site, confirm the current URL directly with the Assessor’s office at (317) 327-4907, as the portal address has shifted in recent years.
Create an account or log in. The portal requires an account to submit a deduction application. You’ll provide your name and email address and set a password. If you’ve used the portal before — for example, to appeal an assessment — you can use your existing credentials.
Search for your parcel using your property address or parcel number. Your parcel number appears on any property tax notice from the county; it’s also listed on your closing documents. Once you’re on your parcel record, look for the option to apply for deductions and select the homestead deduction application.
The application is filed on State Form 5473, which is what the system generates. You’ll need to provide your parcel number and property address, your Social Security number (required on State Form 5473 — this is a state requirement, not optional), confirmation that the property is your primary residence, and your move-in date or the date you acquired ownership.
When you submit, the system should generate a confirmation number. Screenshot it or write it down. This is your proof of filing if any question arises later about whether your application was received — and occasionally questions do arise.
Confirm the portal URL and current navigation path with the Marion County Assessor’s office before publication, as the online system has been updated in recent years and specific screen labels may have changed.
Step 5. Or File In Person at the City-County Building
If you prefer to file in person — or if your situation is more complicated — the Marion County Assessor’s office handles in-person filings. And honestly, if your property has an ownership question, is held in trust, or involves any ambiguity about the deed, this is probably the smarter route anyway.
Marion County Assessor’s Office City-County Building 200 E. Washington St., Indianapolis
Room number and current office hours should be confirmed with the Assessor’s office at (317) 327-4907 before publication. Post-2020 staffing changes have affected walk-in availability at several Marion County offices, and hours may differ from what appears on older web listings.
Bring your Indiana driver’s license or state-issued ID showing your current address (ideally the property address you’re filing for), your deed or closing documents (particularly important if you purchased recently and the county’s records may not yet fully reflect the transfer), and your Social Security number for State Form 5473. If the property is held in trust, bring trust documentation showing you as the beneficial owner.
There’s no dedicated public parking at the City-County Building. The closest public garage is the Pan Am Plaza garage at 201 S. Capitol Ave., about two blocks away. Street parking on Washington Street and the surrounding blocks exists but is limited during business hours — plan for the garage.
The in-person option is also worth considering if you’re filing for the first time and want to confirm on the spot that your application was received and logged correctly. Staff can look up your parcel record in real time and tell you whether a prior homestead filing exists. That kind of immediate confirmation is hard to put a price on when you’re talking about $1,200 a year.
Step 6. Know the Filing Deadline and What Missing It Costs You
Confirm the current deadline with the Marion County Assessor’s office before you rely on any date you read online, including here. The research for this article surfaced two different dates — October 31 and January 5 — each attributable to different parts of Indiana’s property tax framework. I kept expecting one to supersede the other cleanly, and it didn’t resolve that neatly. Marion County’s Assessor’s office at (317) 327-4907 is the authoritative source for the operative deadline in the current cycle.
The homestead deduction must be filed by the applicable deadline to affect the assessment year that determines your next tax bill. Indiana property taxes work on a one-year lag: the taxes you pay in 2026 are based on the assessed value as of January 1, 2025. A filing you make in the fall of 2025 should affect your 2026 tax bill, provided you file before the deadline. A filing made after the deadline doesn’t carry a penalty fee. It simply misses the cycle, meaning you pay the higher, non-exempted rate for a full year with no mechanism to recover that money retroactively. On a $285,000 home, that’s more than $1,200 gone. On a $305,000 home, closer to $1,300. Just gone.
Homeowners who closed on a home in spring 2025 are in the window where there’s still time to file comfortably before any applicable deadline. But they’ve almost certainly received no reminder from any official source. The county doesn’t proactively contact new homeowners to prompt a homestead filing. Real estate agents’ contractual involvement ends at closing. Mortgage servicers don’t flag it. The DLGF’s public-facing guidance, while technically complete, presupposes familiarity with Indiana’s property tax framework that most first-time buyers simply don’t have. If you bought a home in Indianapolis in the last 12 months, now is the time to check — and if you’re still weighing the broader financial picture of ownership, what the Indianapolis housing market is actually doing in mid-2026 provides useful context on where assessed values may be headed. Not because you’re close to a hard deadline this week, but because this is exactly the kind of task that drifts into the background and then the deadline arrives before you’ve acted.
Sound familiar?
Step 7. Don’t Expect Your Mortgage Payment to Drop Right Away
Once your homestead exemption is approved, your monthly mortgage payment doesn’t automatically decrease the following month. This is the question first-time buyers ask most often, and nearly every competing guide fails to answer it — which is genuinely frustrating because it’s not a complicated thing to explain.
Here’s how it actually works. The Assessor approves the deduction and updates your parcel record to reflect the reduced net assessed value. The county then certifies the updated assessed values and transmits them to the Treasurer’s office, which uses them to calculate your property tax bill. The Treasurer generates a revised tax bill reflecting the lower taxable AV on a county-wide schedule, not on demand for individual parcels.
Your mortgage servicer receives updated tax data, typically through a third-party tax-service vendor that monitors property tax records on behalf of servicers. This transmission doesn’t happen in real time. The servicer runs its annual escrow analysis, typically in January or February, and recalculates your required monthly escrow payment based on the new, lower anticipated tax bill. Only at that point does your monthly mortgage payment change.
The realistic timeline: if you file your homestead exemption in the fall of 2025 and it’s approved and reflected in your 2026 tax bill, the reduction in your monthly mortgage payment may not appear until your servicer’s escrow analysis in early 2026. You might see the lower payment starting in spring or summer 2026. In some cases, if your escrow account has already accumulated a surplus because the tax bill came in lower than the servicer projected, you may receive an escrow surplus check rather than an immediate payment reduction. This is normal — it’s the servicer returning money you overpaid into escrow. It’s a nice surprise, even if the timing feels mysterious.
If you believe the homestead savings should have been reflected in your escrow analysis and weren’t, call your mortgage servicer directly. Ask them to confirm what property tax figure they’re using for your escrow calculation and whether the Marion County homestead deduction is reflected in that figure. If it isn’t, and your deduction has been approved by the Assessor, that’s a discrepancy worth resolving. Servicers can and do run off-cycle escrow corrections.
CityDesk sought on-record comment from a local mortgage servicer and a HUD-approved housing counselor at the Indiana Housing Now Partnership (INHP) to confirm this timeline. This piece will be updated with those responses.
Quick Reference: Marion County Homestead Exemption at a Glance
What it is: A two-part property tax deduction available to Indiana homeowners on their primary residence, consisting of a standard deduction (IC § 6-1.1-12-37) and a supplemental deduction (IC § 6-1.1-12-37.5).
Who qualifies: Any owner-occupant whose primary residence is in Indiana. No income limit. One per household. Renters, LLCs, and non-primary properties don’t qualify. Trust-held properties may qualify if you’re the beneficial owner and occupy the home as your primary residence.
What it saves: On a $285,000 assessed value, approximately $1,226 per year. On a $305,000 assessed value, approximately $1,292 per year. Your actual savings depend on your township’s tax rate.
The math: Standard deduction reduces taxable AV by 60%, capped at $45,000. Supplemental deduction then reduces remaining AV by 35%. Both apply; they stack.
Filing deadline: Confirm with the Marion County Assessor’s office at (317) 327-4907. October 31 and January 5 have both been cited in Indiana property tax guidance. Use the Assessor’s office as your authoritative source. Seriously — call them.
File online: assessor.indy.gov (confirm URL is current before publication). You’ll need your parcel number, property address, and Social Security number for State Form 5473.
File in person: Marion County Assessor’s Office, City-County Building, 200 E. Washington St. Call (317) 327-4907 to confirm room number and current hours before going.
Check if you’re already enrolled: Search your parcel at assessor.indy.gov and look for a homestead deduction in your property record.
Did your title company file it? Maybe. Check your parcel record to be sure. Don’t assume.
When will your mortgage payment drop? Not immediately. Expect the savings to work through your escrow account over the following 6–12 months, typically reflected after your servicer’s next annual escrow analysis. If you get an unexpected escrow surplus check in the mail, that’s probably why.
Property tax rates, assessed values, and portal navigation details cited in this article should be verified against current Marion County records before relying on specific figures. CityDesk Indianapolis will update this piece with responses from local title company and mortgage servicer sources, and with confirmed deadline and portal information from the Marion County Assessor’s office, prior to final publication.
