Property Tax in Morgan County, Indiana

How the bill is built

Indiana calculates property tax in a very different way from most states. Start with your home's gross assessed value (AV), subtract the $48,000 Homestead Standard Deduction, then subtract 40% of what's left as the Supplemental Homestead Deduction. What remains is your net AV, and that is multiplied by your tax district's combined rate (per $100 AV). The result is then capped at 1% of your gross AV under Indiana's circuit breaker — meaning most homesteads in high-rate districts effectively pay 1% flat.

Important for 2026: Under Senate Enrolled Act 1 (2025), every homestead also receives a new Supplemental Homestead Credit equal to 10% of your tax liability, up to $300 per year. This is applied automatically — no form required — starting with bills due in 2026.

Morgan County rate breakdown (per $100 AV, Martinsville district)

Taxing entity	Rate
Martinsville Corporation combined rate (per $100 AV)	2.5966
Combined total	2.5966

Data record updated April 25, 2026. This is an editorial update date, not a tax year or a guarantee that every figure has been independently verified.

Sources and scope: Check rates and parcel details with Morgan County Assessor. Figures may refer to different source years; a county-seat rate does not apply to every address. How we use data and estimates.

Note: Morgan County, immediately south of Indianapolis, has been one of Indiana's fastest-growing counties since the 2000s — a function of Indianapolis-metro spillover into Mooresville (population ~9,800, on the county's northern edge) and Martinsville (~12,000, the county seat). Mooresville specifically is now considered an outer Indianapolis suburb, with median home values approaching $250,000 and a tax base supported by Indianapolis-area commuter income.

Note: Martinsville's combined rate of $2.5966 per $100 AV is moderate — lower than urban centers like Indianapolis or Anderson but higher than purely rural Indiana. Morgan County's economic base is split between three forces: Indianapolis commuters (heavily weighted toward the northern third of the county), Indiana University Bloomington commuters (in the southern townships near Monroe County), and traditional agriculture.

Note: Martinsville was once known as the "Artesian City" — for a 30-year period from approximately 1888 to 1918, the city was home to dozens of mineral-water sanitariums that drew wealthy patients from across the Midwest seeking treatment for various ailments. The artesian-springs era ended when most sanitariums closed during the 1918 flu pandemic and never reopened. The historic National Sanitarium building still stands on Martinsville's south side as a city historic landmark.

Deductions and credits for 2026

Homestead Standard + Supplemental Deductions

Indiana's two-part homestead deduction is the single most valuable tax reduction available to homeowners. For 2026, the Standard Deduction is $48,000 off your gross AV, and the Supplemental Deduction is 40% of what remains after the Standard is applied. Together these typically shield about 65% of a typical home's AV from taxation before any rate is even applied.

File Form HC10 (Homestead Property Tax Deduction) with the Morgan County Assessor by December 31 of the year preceding the tax year. Many closings handle this automatically — verify on your next tax bill that "Homestead Standard Deduction" appears as a line item.

Phase-in schedule: Under SEA 1, the Standard Deduction drops to $40,000 in 2027 and phases out entirely by 2030, while the Supplemental percentage rises from 40% (2026) to 66.7% by 2031. The net effect is roughly revenue-neutral for most homeowners — just a different calculation path.

The 1% Circuit Breaker Cap

Indiana's constitution caps homestead property tax at 1% of gross assessed value. If your calculated tax would exceed that amount (which is common in high-rate districts like Hammond, Gary, and South Bend), the bill is reduced to the cap. Non-homestead residential property is capped at 2%, and commercial at 3%.

Supplemental Homestead Credit (new in 2026)

Under SEA 1, qualifying homesteads receive a credit equal to the lesser of 10% of your tax liability or $300. This is applied automatically to your bill — no application needed.

Over 65 Credit

Replacing the old Over 65 Deduction, this new credit provides up to $150 directly off your tax bill. Income limit is $60,000 single / $70,000 joint. File Form 43708 with your county auditor by January 15 of the tax year.

100% Disabled Veteran Exemption

Veterans with a 100% service-connected disability qualify for a full exemption on their primary residence. Partial disability deductions vary by rating.

Appealing your assessment

If you believe Martinsville-area assessed values on your property are too high, you can file Form 130 (Taxpayer's Notice to Initiate an Appeal) with your township assessor within 45 days of receiving your Form 11 assessment notice, which typically arrives in the spring. Most appeals are resolved informally with the assessor; unresolved disputes go to the county Property Tax Assessment Board of Appeals (PTABOA).

Cities and towns in Morgan County

This guide lists 6 selected communities in or associated with Morgan County. It is not a complete municipal directory. Local taxing districts can differ between communities and individual addresses.

Data: US Census Bureau, 2020 Decennial Census. Populations rounded. Cities marked as "split" straddle a county border — the portion inside Morgan County is subject to Morgan County's tax rolls, while the portion outside is subject to the adjacent county's.

City or town	Type	Population (2020)
Martinsville County seat	city	11,860
Mooresville	town	9,831
Brooklyn	town	1,610
Morgantown	town	992
Monrovia	town	666
Paragon	town	522

About city-level property tax rates: The rate breakdown and calculator on this page use a representative district around Martinsville. Other cities in Morgan County may pay into different school districts, city rates, and special districts — so their combined rates can differ, sometimes substantially. Always verify the specific rates for your address with the Morgan County Assessor before relying on any estimate.

Frequently asked questions

How does the Indiana 1% circuit breaker cap actually work?

Indiana's constitution caps homestead property tax at 1% of your gross assessed value. If your calculated tax (after deductions) would exceed 1% of gross AV, the excess is automatically "forgiven" — you never pay more than 1%. In Lake, Marion, and St. Joseph counties, a large share of homesteads hit this cap.

Do I have to apply for the Supplemental Homestead Credit?

No. If your property already has the Homestead Standard Deduction on file, the Supplemental Homestead Credit is applied automatically starting with your 2026 bill. Check that it appears on your bill under "Credits."

When does my homestead deduction need to be filed by?

File Form HC10 with your county auditor by December 31 of the assessment year. Many real-estate closings handle this paperwork — verify on your first full-year tax bill that the deduction appears.

About Morgan County

Beyond the property tax — a few things you might not know about the place.

Weird fact

Morgan-Monroe State Forest, straddling the Morgan-Monroe county line, is home to the most-cited "ghost town" in Indiana — the abandoned village of Stepp Cemetery, which has been the subject of paranormal investigation TV episodes (Travel Channel's "Most Haunted") and Indiana ghost-story books since the 1970s. The cemetery is real (active burials 1837-1900s) and the surrounding forest is undeniably eerie at night.

Hometown hero

John Wooden

The legendary UCLA basketball coach (1910-2010) was born in Hall, a tiny unincorporated village in southern Morgan County, and grew up in Centerton (also Morgan County) before moving to Martinsville for high school. Wooden won 10 NCAA championships at UCLA between 1964 and 1975 — including 7 in a row, a record that still stands. He was the first person inducted into the Basketball Hall of Fame as both a player AND a coach. Wooden returned to Martinsville frequently throughout his life and is buried there.

Biggest annual event

Old Settlers Days (Mooresville)

Held annually in late July at Pioneer Park in Mooresville since 1938, Old Settlers Days is one of the oldest continuously-running pioneer-heritage festivals in Indiana. The festival features period-costumed interpreters operating a working blacksmith shop, the Mooresville High School Marching Pioneer band, square dancing in the park gazebo, and the annual Mooresville Pioneer Pageant. Roughly 25,000 visitors attend over its 4-day run.

Property Tax in Morgan County