Hamilton County Property Tax: Rates & Appeal (2026)

For Hamilton County’s January 1, 2026 assessment, the regular real-property appeal deadline was June 15, 2026 because the county says Form 11 notices were to be mailed by April 30, 2026. If you are reading this after that date, the next regular annual deadline is expected to be June 15, 2027 under Indiana’s same rule, but you should still check whether you have a limited “objective error” issue that can be raised on Form 130 within three years.

File with the Hamilton County Assessor, not the Treasurer: online through the county’s Form 130 portal, by mail to Hamilton County Assessor, 33 N. 9th Street, Suite 214, Noblesville, IN 46060, or in person on the 2nd floor of the Old Courthouse/Historic Courthouse in Noblesville. The county and state instructions do not list a filing fee for a Form 130 appeal.

How assessments work in Hamilton County

Hamilton County assessments are part of Indiana’s market-value-in-use system. The county assessor’s office says it assesses real and business personal property, evaluates appeals, oversees reassessment, certifies current assessments to the auditor, and uses recent sales of land to establish base market rates and values. For the January 1, 2026 assessment date, Hamilton County says sales from January 1, 2025 through December 31, 2025 were used for comparison, and that a 2026 appeal affects tax bills due in 2027.

The Form 11 is the assessment notice. It is not the tax bill, but its assessed value is the starting point for calculating the later bill. Indiana’s DLGF explains that assessed values can change because of new construction, additions, remodeling, changes in land use, and annual market adjustments. Hamilton County also asks homeowners to check their property record card, which is available through its Property Reports and Payments application under Property Assessment, through satellite offices, or from the Assessor.

Hamilton County is also in a physical-inspection reassessment program. The county’s reassessment page says its cyclical reassessment began May 1, 2023 and is to be completed by December 31, 2026, with about 25% of parcels visited each year. Separately, DLGF describes the statewide 2026-2030 cycle as beginning in 2026 with roughly 25% of parcels reassessed each year. For homeowners, the practical point is simple: a field visit may correct the county’s data, but the appeal still turns on whether your January 1 value and property record are right.

Whether you should appeal

Appeal when you can show the assessment is too high as of January 1, 2026, or when the county’s property data is wrong. Strong Hamilton County evidence usually includes: a 2025 arm’s-length purchase of your own home; comparable 2025 sales in your neighborhood or township; photos and contractor estimates for condition problems; a professional appraisal adjusted to the correct valuation date; or a property record card showing incorrect square footage, basement finish, garage, pool, grade, condition, or land classification.

Do not appeal just because the tax bill is painful. In Indiana, the tax bill also depends on your taxing district rate, deductions, credits, school referenda, and caps. Hamilton County’s 2026 district rates vary substantially: examples include Carmel City 2.0167, Fishers Town 2.1994, Noblesville City 2.5549, Westfield Town 2.3448, Clay Township 1.2384, and Sheridan Town 2.7455 per $100 of net assessed value. The exact rate for your parcel is on your tax bill and county property report.

Also check deductions before assuming the assessment is the whole problem. Hamilton County’s homestead page says the standard homestead deduction is residency-based, limited to a primary residence, and the supplemental deduction is automatic once the standard homestead deduction is approved. For 2026 pay 2027, Hamilton County lists the standard deduction at $40,000 and the supplemental percentage at 46%. The county also notes a newer supplemental homestead credit worth one-tenth of tax liability, up to $300 annually, for qualifying homesteads.

A realistic savings example: suppose a Carmel City homeowner’s January 1, 2026 gross assessment is $450,000, but good 2025 comparable sales support $420,000. Using the 2026 Carmel City district rate of 2.0167 per $100 and the 2026-pay-2027 homestead deductions, the taxable value estimate would fall from about $221,400 to $205,200: a $16,200 taxable-value drop. $16,200 × 2.0167 ÷ 100 = about $327 in gross annual tax savings, before any cap, referendum, or credit interactions. Your result will differ if you are in Fishers, Noblesville, Westfield, a rural township, or if the 1% homestead cap is already controlling the bill.

Step-by-step how to file

1. Download or use the correct form. The form is Form 130 — Taxpayer’s Notice to Initiate an Appeal, State Form 53958. DLGF lists Form 130 under Appeals Process Forms, and Hamilton County links its own Form 130 PDF from the assessment appeal page.

2. Use the right section. Use Section II for a current-year value appeal, such as “my January 1, 2026 assessment is above market value.” Use Section III for objective errors, such as the wrong owner, clerical/math error, property description error, deduction/credit/exemption/tax-cap issue, or similar statutory issue.

3. File one petition per parcel. DLGF says a taxpayer must file a separate Form 130 for each parcel being appealed.

4. Include the essentials. At minimum, include county, township, parcel/key number, property address, owner name, mailing address, phone/email, the current assessed value, your requested value, and a clear reason. Hamilton County says each appeal is reviewed for defects and you will be notified if the appeal is defective.

5. Attach evidence if you have it. Indiana does not require an appraisal to file, but evidence is required to win. Hamilton County says examples include an appraisal, construction costs, sales information for your property or comparable properties, or other generally accepted appraisal evidence. If you do not have everything by the filing deadline, file on time first and keep building the evidence packet.

6. Choose a filing method. Hamilton County lists these methods: online via the county’s Taxpayer’s Notice to Initiate Appeal submission form; mail to Hamilton County Assessor, 33 N. 9th Street, Suite 214, Noblesville, IN 46060; or hand delivery to the Hamilton County Assessor’s Office on the 2nd floor of the Old Courthouse Building in Noblesville. The county appeal page does not list email as a standard Form 130 filing method, so use the portal, mail, or in-person filing unless the Assessor gives you written instructions.

7. Representatives need authority. Hamilton County notes that, unless filing through the online portal, the petition must be signed by the petitioner or authorized representative. For 2026, the county says Power of Attorney forms must be submitted by tax representatives at the same time as Form 130 and may not be effective for more than one year.

What happens after

The appeal starts locally. After Form 130 is filed, the assessing official schedules a preliminary informal meeting. Hamilton County says these informal meetings may be by phone or email, or in person on request, and that the parties exchange the information they are relying on.

If you and the Assessor reach agreement, the result is reported to the Hamilton County Property Tax Assessment Board of Appeals (PTABOA). If there is no agreement, the case goes to PTABOA. Hamilton County’s PTABOA page says the board reviews subjective and objective assessment appeals, homestead eligibility appeals, and nonprofit exemption matters. The board usually meets on Thursdays from August to May in the Historic Courtroom of the Historic Courthouse.

DLGF’s appeal fact sheet says PTABOA must hold a hearing not later than 180 days after the appeal petition filing date, and must mail notice of the hearing date, time, and place at least 30 days before the hearing. A taxpayer may request that PTABOA decide the appeal without a hearing in writing at least 20 days before the hearing. At the hearing, you present your evidence, the Assessor presents the county’s evidence, and the board decides whether the assessment should decrease, remain the same, or increase.

If you disagree with PTABOA’s Form 115 final determination, Hamilton County says a Form 131 petition to the Indiana Board of Tax Review (IBTR) must be filed within 45 days after the mailing of the Form 115, with a copy sent to the County Assessor. Hamilton County also states IBTR will conduct a hearing within one year of filing, excluding taxpayer-caused delays, and issue a final determination within 180 days of the hearing, with a possible 180-day extension.

Local tips

Start with the property record card. Hamilton County specifically tells owners to check it because “you know your property better than we do.” A wrong finished-basement area, extra bath, garage size, condition, grade, or outbuilding can be more persuasive than arguing generally that prices are high.

Use 2025 evidence for the 2026 assessment. A late-2026 sale may help explain the market, but Hamilton County says the January 1, 2026 value was built from the 2025 sales period, so your best comparable sales are usually 2025 sales near your neighborhood and property type.

Check your deduction status separately with the Auditor. Assessment appeals go to the Assessor/PTABOA; deductions are handled by the Auditor. Hamilton County says property tax deductions can be filed online or in person at the Auditor’s Office, and homestead applicants for 2026-pay-2027 taxes must apply by January 15, 2027. If your bill lost the homestead, over-65, veteran, blind/disabled, or other benefit, fix that with the Auditor in addition to any assessment appeal.

Finally, keep paying attention to due dates. Indiana’s 2026 property tax installment dates are May 11, 2026 and November 10, 2026. Filing an appeal does not automatically erase the need to pay; DLGF says a taxpayer with a pending appeal may pay based on the immediately preceding year’s assessment, but failing to pay the required amount can still create delinquency penalties.

Hamilton County Property Tax Rate

Hamilton County does not have one countywide homeowner tax rate; the official 2026 taxing-district rates range from 1.2384 to 2.7455 per $100 of taxable assessed value, depending on the parcel's taxing district.

Source: https://www.hamiltoncounty.in.gov/DocumentCenter/View/31240/2026-District-Rates-PDF

When Are Property Taxes Due in Hamilton County?

For 2025-pay-2026 property taxes, the spring installment was due on or before May 11, 2026, and the fall installment is due on or before November 10, 2026. Two installments: spring and fall.

This is not the same as the assessment appeal deadline above. The appeal deadline is your window to contest your assessed value; the payment due date is when the resulting tax bill must be paid. Missing one does not affect the other, but missing either has real consequences — one forfeits your right to appeal for the year, the other can trigger penalties and interest.

Source: https://www.hamiltoncounty.in.gov/DocumentCenter/View/31242/2025-pay-2026-Certified-Tax-Rate-Chart-PDF

Property Tax Exemptions in Hamilton County

• Standard Homestead Deduction, Supplemental Homestead Deduction, and Supplemental Homestead Credit — Individuals or married couples with an ownership interest in one Indiana principal residence that they occupy; only one homestead is allowed under Indiana homestead law.. For 2025 pay 2026: $48,000 standard homestead deduction plus 40% supplemental deduction; the supplemental homestead credit is one-tenth of tax liability, up to $300 annually, and is automatically applied with the standard homestead deduction. Yes, apply for the standard homestead deduction; the supplemental deduction and new supplemental homestead credit are automatically applied when the standard homestead deduction qualifies. Apply by January 15 to affect the next tax bill; for a 2026 application affecting 2026-pay-2027 taxes, January 15, 2027.. (Source: https://hamiltoncounty.in.gov/376/Standard-Homestead-Credit)
• Over Age 65 Credit — Applicants with an ownership interest who are at least 65 on or before December 31 of the year preceding the year the credit is claimed; federal AGI may not exceed $60,000 for an individual or $70,000 for a married couple.. Up to $150 annually. Yes, file an application with the County Auditor and provide proof of age and income. Apply by January 15 of the calendar year in which the property taxes are first due and payable; for 2026-pay-2027 taxes, January 15, 2027.. (Source: https://hamiltoncounty.in.gov/374/Over-Age-65)
• Over Age 65 Circuit Breaker Credit — Primary-residence benefit for applicants at least 65 on or before December 31 of the year preceding the year claimed; federal AGI may not exceed $61,680 for an individual or $71,960 for a married couple for 2026-pay-2027, with future thresholds adjusted by Social Security COLA.. Prevents property tax liability on qualified homestead property from increasing by more than 2% over the previous year's tax liability. Yes, apply in person with proof of age and income. Apply by January 15 of the calendar year in which the property taxes are first due and payable; for 2026-pay-2027 taxes, January 15, 2027.. (Source: https://hamiltoncounty.in.gov/374/Over-Age-65)
• Blind/Disabled Persons Credit — Applicants with an ownership interest who provide proof of blindness or disability.. $125 credit. Yes, apply in person with proof of blindness or disability. Apply by January 15 of the calendar year in which the property taxes are first due and payable; for 2026-pay-2027 taxes, January 15, 2027.. (Source: https://www.hamiltoncounty.in.gov/370/Blind-Disabled)
• Veteran with Service-Connected Disability Credit — Veterans who served during a wartime period, received an honorable discharge, and have a service-connected disability rating of at least 10%.. $350 credit. Yes, furnish the Auditor with DD214 and U.S. Department of Veterans Affairs compensation letter, or obtain State Form 12662 through Hamilton County Veteran Services if needed. Apply by January 15 of the calendar year in which the property taxes are first due and payable; for 2026-pay-2027 taxes, January 15, 2027.. (Source: https://www.hamiltoncounty.in.gov/370/Blind-Disabled)
• Veteran Age 62+ with Disability Credit — Veterans who served in the U.S. military for at least 90 days, received an honorable discharge, and are at least 62 years old with at least a 10% disability.. $250 credit. Yes, furnish the Auditor with DD214 and U.S. Department of Veterans Affairs compensation letter, or obtain State Form 12662 through Hamilton County Veteran Services if needed. Apply by January 15 of the calendar year in which the property taxes are first due and payable; for 2026-pay-2027 taxes, January 15, 2027.. (Source: https://www.hamiltoncounty.in.gov/370/Blind-Disabled)

How to Look Up Your Property Record in Hamilton County

You can look up your property's official record at https://secure2.hamiltoncounty.in.gov/PropertyReports/index.aspx. The official Hamilton County Property Search shows tax payments and current balance due, tax statements and comparison reports, ownership information including deductions and transfer history, and assessed values including property record cards.