The Indiana Form 11 assessment notice is the document your county assessor mails each year to tell you what your property is worth for tax purposes. The land value and the improvement value listed on it, added together, become the base your property tax bill is calculated from. If the number looks wrong, Form 11 also starts a short clock on your right to appeal, so it is worth reading carefully the day it arrives.
What the Notice Shows You
Form 11 splits your property’s value into two parts: the assessed value of the land and the assessed value of improvements, which covers buildings, garages, additions, and any other permanent structures. They are listed separately so you can see whether a change came from the lot, the house, or both. The two figures are added for your total assessed value.
The notice also prints the prior year’s values next to the current ones. That side-by-side line is usually the first thing to check, because a sharp one-year jump is the most common reason people start looking at an appeal.
Beyond the dollar amounts, the form lists your name, the property address, the parcel number (sometimes called a key number), and a legal description. Read each one. A wrong parcel number or an incorrect description can mean someone else’s data landed on your notice, and that is a factual error you can correct through the appeal process. The bottom or back of the form carries the appeal instructions and the deadline that applies to your specific notice. Keep the whole document; you will need the parcel number and the mailing date if you decide to challenge the value.
Why Your Value Came Out That Way
Indiana assesses real property at its “true tax value,” which is intended to reflect market value-in-use. In plain terms, the target is roughly what the property would sell for under normal conditions, adjusted for how it is actually being used. A home used as a residence is valued as a residence.
Rather than appraising every house every year, the state uses a mass appraisal system. The assessor gathers actual sales data for an area, then applies statistical models to estimate values for properties with similar characteristics: square footage, lot size, age, construction type, and location. Between full reassessments, Indiana requires annual adjustments known as trending, which use the prior year’s sales to update values on surrounding properties. Trending can move your assessed value up or down even if you made no improvements and did not sell.
Indiana also runs a full cyclical reassessment on a four-year rotation. Roughly 25 percent of the parcels in each county are physically reassessed each year, so every parcel gets a detailed look at least once in four years.1Department of Local Government Finance. Assessment Fact Sheet If your current notice reflects a reassessment year for your parcel, that often explains a larger change.
How the Assessed Value Becomes a Tax Bill
The number on your Form 11 is not what the tax rate gets applied to. A few steps sit in between.
- Gross assessed value: the total from your Form 11 (land plus improvements).
- Minus deductions: any deductions you have been granted — homestead, mortgage, veteran, and others — are subtracted to produce your net assessed value.
- Times the local tax rate: Indiana calculates taxes per $100 of net assessed value. On $150,000 net at a $2.50 rate, the gross tax is $3,750.
- Circuit breaker cap applied: constitutional caps limit your final bill to a fixed percentage of your gross assessed value.
The circuit breaker caps are 1% of gross assessed value for homestead property, 2% for other residential and agricultural land, and 3% for commercial and personal property.2Department of Local Government Finance. Fact Sheet – Circuit Breaker Caps If the rate calculation produces a bill above the cap, the bill is reduced to the cap. A higher assessed value also raises that ceiling, so the number on Form 11 matters even when the cap is doing its job.
Check Your Deductions Before You Appeal
Deductions reduce your net assessed value before the rate is applied, and most of them are not automatic. Applications are filed with your county auditor. A missing deduction is often a faster fix than contesting the value itself, so confirm each one you qualify for.
Homestead Deductions
If you own and occupy the property as your primary residence, you can claim the standard homestead deduction: 60% of the assessed value or $48,000, whichever is less. Once the standard deduction is in place, the supplemental homestead deduction is applied automatically, removing an additional 40% of what remains after the standard deduction.3indy.gov. Apply for a Homestead Deduction
Mortgage Deduction
Indiana residents with a recorded mortgage or contract on their property can claim a deduction equal to the lesser of $3,000, half the assessed value, or the remaining mortgage balance. Only one mortgage deduction per year is allowed, and you need to refile after refinancing.
Over-65 Credit
Homeowners who are at least 65 may qualify for a $150 annual property tax credit, with an income ceiling of $60,000 adjusted gross income for single filers and $70,000 for joint filers.4Department of Local Government Finance. Application for Senior Citizen Property Tax Benefits It stacks with the homestead deductions and the circuit breaker cap.
Disabled Veteran Deduction
Veterans with a total disability, or those age 62 and older with at least a 10% VA disability rating, can deduct $14,000 from the assessed value of their primary Indiana residence if the home’s assessed value is under $240,000. Veterans who also qualify under the separate service-connected disability provision at IC 6-1.1-12-13 may combine both deductions for a total reduction of up to $38,960.5Indiana Department of Veterans Affairs. Disabled Veteran Property Tax Deduction Surviving spouses of eligible veterans or service members killed in action may also qualify.
How to Appeal the Assessment
If the assessed value looks too high, or if the property description is wrong, you file an appeal using Form 130, Taxpayer’s Notice to Initiate an Appeal. Form 130 is available from the Indiana Department of Local Government Finance website and at your county assessor’s office.6Department of Local Government Finance. Appeals Property Tax
The Deadline That Controls Everything
Your filing deadline depends on when the county mailed your Form 11. If the notice was mailed before May 1 of the assessment year, you have until June 15 of that same year. If the notice was mailed on or after May 1, the deadline moves to June 15 of the year the county treasurer mails your tax statement, which is effectively the following year.7Indiana General Assembly. Indiana Code 6-1.1-15-1.1 – Taxpayers Appeal of an Assessment The mailing date printed on your Form 11 controls which rule applies, so check it before anything else. Missing the deadline forfeits your right to challenge that year’s assessment.
Two Kinds of Dispute on One Form
Form 130 separates appeals into two categories. Page 1 handles subjective disputes, where you believe the overall value is simply too high. Page 2 covers objective errors: incorrect square footage, wrong construction type, a missing deduction, or an assessment charged to the wrong person.6Department of Local Government Finance. Appeals Property Tax You can raise both on the same filing, but each parcel needs its own Form 130.
Evidence That Actually Moves the Number
Saying the assessment is too high is not enough. The evidence that carries weight:
- A recent independent appraisal performed within the past year by a certified appraiser, particularly one that values the property below the assessed amount.
- Comparable sales data from similar homes in your neighborhood that closed recently, matched on square footage, lot size, age, and condition.
- Photographs of property condition issues the assessor would not see from the street, such as foundation problems, water damage, or outdated systems.
- A marked-up copy of the property record card showing errors, which you can request from the assessor. Wrong bedroom counts, phantom finished basements, and nonexistent garages are common.
Gather this material before you file. A Form 130 submitted with a vague objection and no documentation leaves you assembling proof under pressure before the hearing.
Where to File
Deliver the completed Form 130 and supporting documents to the county assessor’s office. Hand-deliver and ask for a date-stamped receipt, or send by certified mail for a paper trail that proves you met the deadline. Keep copies of everything.
What Happens After You File
Appeals are processed in the order they are received. The pace varies by county, but the sequence is the same throughout Indiana.
The assessor’s office first schedules an informal meeting, sometimes called a preliminary conference, where you and the assessor review your evidence.8indy.gov. The Property Assessment Appeals Process This is the fastest route to a resolution. If the assessor agrees the value is too high or the record contains errors, they can adjust it without a formal hearing. Bring documentation.
If the conference does not produce an agreement, the case goes to a formal hearing before the county’s Property Tax Assessment Board of Appeals (PTABOA). A hearing examiner reviews both sides and issues a written determination, with the hearing date sent to you in advance.8indy.gov. The Property Assessment Appeals Process
If the PTABOA rules against you, you can appeal to the Indiana Board of Tax Review (IBTR) within 45 days of receiving the PTABOA’s determination. The IBTR must hold a hearing within nine months of receiving your appeal and issue a decision within 90 days of the hearing.8indy.gov. The Property Assessment Appeals Process Further review is available through the Indiana Tax Court, though most residential disputes end earlier.
If You Hire Someone to Represent You
You can handle the appeal yourself, or use a representative. Attorneys licensed in Indiana can represent you without extra paperwork. Anyone else, including tax consultants and property tax appeal firms, must attach a notarized power of attorney to the filing, and certified tax representatives must include a Tax Representative Disclosure Statement with the petition.
Some firms work on contingency, charging a percentage of the tax savings and nothing if they lose. Others charge flat fees. Before you sign, confirm the fee structure, whether it is contingent on a reduction, and whether it applies to the first year’s savings or to multiple years. A firm charging 50% of three years of savings on a modest reduction can cost more than the adjustment is worth.
Effect on Your Mortgage Escrow
If your property taxes are paid through a mortgage escrow account, a higher assessed value does not only change your tax bill; it can change your monthly mortgage payment. Lenders review escrow accounts at least annually to confirm the balance covers upcoming taxes and insurance. When the tax bill rises, the monthly escrow contribution rises to match, and the new amount typically shows up on your statement a couple of months after the analysis.
When the account comes up short, most lenders let you pay the shortage as a lump sum, spread it over the next 12 payments, or do some combination. Even if you pay the shortage in full, your monthly payment can still be higher going forward if the underlying tax expense is now permanently higher. A successful appeal that lowers your assessed value works the other direction, reducing the escrow requirement at the next annual analysis. If an appeal produces a refund for overpaid taxes, contact your lender so the refund is credited to the escrow account properly.