Property tax in Hamilton County, Indiana runs an average effective rate of about 0.89% of market value, billed in two installments each year and capped by state law at 1% of gross assessed value on your primary home, 2% on other residential and agricultural property, and 3% on commercial property. What you actually owe depends on your assessed value, the deductions you file with the county auditor, and which local taxing units overlap your parcel.1Department of Local Government Finance. Property Tax Caps / Circuit Breaker Credits Fact Sheet
How Your Bill Is Calculated
The Hamilton County Assessor sets a gross assessed value for your property each year, adjusted through an annual trending process that compares local sales data to keep values in line with the market.2Justia. Indiana Code Title 6, Article 1.1, Chapter 4 – Procedures for Real Property Assessment Any deductions you qualify for come off that gross figure to produce your net assessed value. The local tax rate for your taxing district is applied to the net value, and then the circuit breaker caps are checked. If the resulting bill exceeds the cap for your property type, the excess is removed as a credit on your statement.
The Property Tax Caps
Indiana’s circuit breaker system limits total property tax to a percentage of gross assessed value:
- 1% for homestead property (your primary residence)
- 2% for other residential property, agricultural land, and long-term care property
- 3% for commercial, industrial, and other real and personal property
The cap does not lower your local tax rate. It caps the dollar amount you pay, and any reduction shows up on your tax statement as a circuit breaker credit.3Indiana General Assembly. Indiana Code Title 6 Taxation 6-1.1-20.6-7.5
Deductions That Lower Your Bill
You apply for property tax deductions through the Hamilton County Auditor’s office, online or in person at the county government center. File on or before January 15 and the deduction appears on that year’s bill. Miss that date and you wait a year.4Indiana Department of Local Government Finance. Deductions and Credits
Standard Homestead Deduction
The biggest tax break for homeowners. You must own the property and use it as your primary residence. For the 2026 pay 2027 cycle, the deduction is $40,000 off assessed value.5Hamilton County, IN. Standard Homestead Credit Indiana repealed the separate mortgage deduction in 2023 and folded that benefit into a higher homestead deduction, so there is no longer a separate mortgage form to file.6Department of Local Government Finance. Legislative Changes Concerning Mortgage Deduction Repeal
Supplemental Homestead Deduction
Once the standard homestead is on file, the supplemental deduction is applied automatically. It removes an additional percentage of what remains after the standard deduction. Hamilton County lists the supplemental rate at 46% for the 2026 pay 2027 cycle.5Hamilton County, IN. Standard Homestead Credit By statute the supplemental cannot exceed 75% of gross assessed value.7Indiana General Assembly. Indiana Code 6-1.1-12-37.5 – Supplemental Deduction for Homesteads
Over 65 Credit
Homeowners 65 and older may qualify for the Over 65 Credit, which cuts tax liability directly rather than reducing assessed value. Adjusted gross income cannot exceed $60,000 for single filers or $70,000 for joint filers.8Hamilton County, IN. Over Age 65 The income figure used is from two years before the tax payment year, so for taxes due in 2027 the county looks at your 2025 income.9Department of Local Government Finance. Application for Senior Citizen Property Tax Benefits
A separate Over 65 Circuit Breaker Credit has slightly higher income thresholds: $61,680 for single filers and $71,960 for joint filers in the 2026 pay 2027 cycle. Beginning with that cycle, these thresholds adjust each year based on the Social Security cost-of-living adjustment.8Hamilton County, IN. Over Age 65
Disabled Veteran Deductions
Two veteran deductions exist, and an eligible veteran can claim both:
- Wartime service deduction of $24,960 off assessed value, for veterans who served in World War II, Korea, Vietnam, or the Gulf War, received an honorable discharge, and have a VA disability rating of at least 10%.
- 90-day service deduction of $14,000, for veterans with at least 90 days of service and an honorable discharge who are either totally disabled or over 62 with a disability rating of at least 10%. The home’s assessed value must be under $240,000.
Stacked, the two deductions reduce assessed value by $38,960.10Indiana Department of Veterans Affairs. Disabled Veteran Property Tax Deduction
When Taxes Are Due
The county treasurer must mail tax statements by April 15 each year.11Indiana General Assembly. Indiana Code Title 6 Taxation 6-1.1-22-8.1 Payment is split into two installments due May 10 and November 10. When either date falls on a weekend or holiday, the deadline moves to the next business day. For 2026, the spring installment is due Monday, May 11 (May 10 is a Sunday), and the fall installment is due Tuesday, November 10.12Hamilton County, IN. Property Tax Reminders – Treasurer
If your mortgage company pays through escrow, your statement is sent to the lender marked “IN ESCROW.” Confirm the payment lands. If your lender misses the deadline, the penalties attach to your property, not theirs.
How to Pay
Hamilton County’s online portal, reached through the Property Reports and Payments page, lets you search by name, address, or parcel number and pay by credit card or electronic check. Card payments carry a convenience fee.13Hamilton County, IN. Pay Taxes Online and Reports You can also mail a check with the return envelope included in your bill, drop a payment in the box at the county judicial center after hours, or pay at the counter of an authorized bank if you bring the original coupon. Keep your receipt or confirmation number. If a payment is lost or misapplied, that record is the fastest way to resolve it.
Penalties If You Pay Late
The penalty is 5% of the overdue installment if you pay within 30 days of the due date and have no outstanding delinquencies on the same parcel from prior years. If you have any prior delinquency, or you miss the 30-day window, the penalty is 10%.14Indiana General Assembly. Indiana Code 6-1.1-37-10 – Penalties for Delinquent Taxes
The prior-delinquency rule is the one that catches people. Once you have fallen behind on an installment, every future late payment on that parcel starts at 10% even if you catch it up within a few days. On the day after each installment due date in every year following an initial delinquency, another 10% penalty is added to whatever remains unpaid.
Tax Sale and Redemption
Unpaid taxes can eventually cost you the property. After an extended delinquency, the treasurer can place the parcel in a tax sale, and the county must notify you first. At the sale, a buyer purchases a tax sale certificate rather than the property itself.
Indiana gives you a redemption period to buy it back. Redeem within six months of the sale and you owe 110% of the minimum bid. After six months, that rises to 115%. You also owe the buyer 5% annual interest on any amount paid above the minimum bid, plus any taxes the buyer paid on the property after the sale, again with 5% interest.15Indiana General Assembly. Indiana Code 6-1.1-24-2 – Notice of Tax Sale, Information Required If you do not redeem within the statutory period, the buyer can petition for a tax deed and take ownership.
Appealing an Assessment You Think Is Wrong
If the assessed value looks too high, you can file a Form 130 appeal with the local assessor’s office. Most homeowners file after receiving Form 11, the annual notice of assessment mailed by the county.16Indiana Department of Local Government Finance. Appeals Property Tax
The deadline depends on when the Form 11 is mailed. If it goes out before May 1 of the assessment year, you must file by June 15 of that same year. If it goes out on or after May 1, you have until June 15 of the year the tax statement is mailed.17Indiana General Assembly. Indiana Code 6-1.1-15-1.1 – Taxpayers Appeal of an Assessment File late and you lose the right to appeal for that year.
The first step is an informal conference with the assessor. Bring evidence that supports a lower value: comparable sales, a recent professional appraisal, photographs of damage or condition problems. If you cannot agree, the appeal goes to the county Property Tax Assessment Board of Appeals (PTABOA) for a formal hearing and written decision. Further appeals go to the Indiana Board of Tax Review and then state courts.
If You Own a Business
Businesses operating in Hamilton County owe personal property tax on equipment, furniture, fixtures, and other tangible assets. The Business Tangible Personal Property Assessment Return (Form 103) is due May 15, with up to a 30-day extension available on written request to the county assessor.18IN.gov. Business Tangible Personal Property Assessment Return 2026
For 2026, businesses with total original acquisition cost under $2,000,000 qualify for an exemption, but you still have to file to claim it unless you previously filed an exemption with an acquisition cost under $80,000, in which case the exemption carries over automatically. At $2,000,000 or more, you file a return and pay tax on the assessed value of the assets, subject to the same 3% circuit breaker cap that applies to other non-homestead property.