Search Sullivan County Property Tax Records

Sullivan County property tax records are handled by three county offices in Sullivan, Indiana: the Assessor, who values each parcel; the Auditor, who applies deductions and calculates tax amounts; and the Treasurer, who sends bills and collects payments. Property owners and researchers can search Sullivan County parcel data, assessed values, and tax billing information online through county and state tools under the oversight of the Indiana Department of Local Government Finance.

Sullivan County Assessor, Auditor, and Treasurer

Sullivan County uses the standard Indiana three-office structure for property tax administration. The Assessor values all real and personal property in the county as of January 1 each year. The Auditor takes those values, applies any approved deductions, and calculates the annual tax bill for each parcel. The Treasurer issues bills and handles all payment activity, including delinquent collections.

All three offices are at the Sullivan County Courthouse in Sullivan. The courthouse serves as the central point for in-person filings, deduction applications, and payment questions. Property owners who need to update ownership records, file a homestead deduction, or dispute a value should plan to work through the appropriate office at the courthouse.

The Sullivan County Auditor is the right office for deduction questions. If you want to add a homestead deduction, check on an over-65 exemption, or confirm what is currently on file for your parcel, call or visit the Auditor. The deadline for filing or changing any deduction is January 5, and that date applies to all Indiana counties under IC 6-1.1-12.

Searching Sullivan County Property Tax Records Online

The Indiana DLGF homepage shown below is the statewide regulatory hub for all Indiana property tax matters, including the rules and procedures that govern Sullivan County assessment, deductions, and appeals.

The DLGF site provides taxpayer guides, deduction forms, and an assessed value search tool that covers every Indiana county including Sullivan.

Sullivan County property tax records are accessible through the DataPitStop system, which is used by several southwest Indiana counties. This platform lets you search by owner name, address, or parcel number to find assessed values, parcel data, and tax billing history. No login or fee is required for basic parcel searches.

The statewide Indiana Gateway Tax Bill Lookup is another useful tool. Enter a Sullivan County parcel number or address to pull up current tax bill amounts and payment status. Online payment for Sullivan County property taxes is also available. The Indiana Gateway Taxpayer Portal provides budget and levy data that shows how Sullivan County tax rates are built from multiple overlapping taxing units including the county, townships, schools, and municipalities.

Sullivan County Property Tax Deductions

Several Indiana deduction programs reduce the net tax owed on Sullivan County property. The Homestead Standard Deduction and Homestead Supplemental Deduction are available to any owner who occupies the property as a primary residence. These are the two most valuable deductions in the state's program and can significantly cut the taxable assessed value of a home.

Other deductions available through the Sullivan County Auditor include the Over 65 Deduction, the Over 65 Circuit Breaker Credit, the Blind or Disabled Deduction, the Totally Disabled Veteran Deduction, and deductions for geothermal or solar energy systems. Each program has specific eligibility rules. The Auditor can confirm what is currently filed for any parcel and explain what documentation is needed to apply for a new deduction.

Deduction applications for Sullivan County must be filed by January 5 each year. Missing that deadline means the deduction will not apply until the following tax year. First-time buyers often lose a year of homestead savings by missing this deadline, so it is worth filing as soon as a purchase closes. The governing statute is IC 6-1.1-12.

Assessment and Appeals in Sullivan County

Sullivan County real property is assessed at 100% of market value as of January 1 each year under IC 6-1.1-4. Indiana's market value standard applies uniformly to all property types: residential, commercial, agricultural, and industrial. Sullivan County's economy includes a significant agricultural base as well as some industrial parcels, and the assessor values each category under the method appropriate to its use.

Property owners who believe their Sullivan County assessment is too high can appeal using Form 130. The filing deadline is June 15. The first level of appeal is the Sullivan County Property Tax Assessment Board of Appeals, or PTABOA. If the PTABOA review does not resolve the issue, the property owner can take the case to the Indiana Board of Tax Review. The full appeal process is described in IC 6-1.1-35.

The Indiana DLGF at (317) 232-3777 can answer general questions about the appeal process and taxpayer rights statewide. For specific questions about a Sullivan County parcel value, the Assessor's Office in Sullivan is the right contact.

Tax Payments and Due Dates in Sullivan County

The Beacon GIS platform shown below is another statewide tool used in many Indiana counties and available for searching parcel maps and property data including Sullivan County records.

Beacon provides parcel mapping alongside tax data and serves as a searchable GIS resource for numerous Indiana counties in the southwest region.

Sullivan County property tax bills are mailed in early April. The spring payment is due May 10 and the fall payment is due November 10. Both deadlines apply statewide and are set under Indiana law. A 5% penalty applies if a payment is late by up to 30 days, and the penalty rises to 10% after 30 days. The billing and collection process follows IC 6-1.1-22.

Continued non-payment of Sullivan County property taxes can lead to a tax lien and tax sale under IC 6-1.1-24. Indiana's tax sale process includes a redemption period during which the prior owner may pay the delinquent amount plus fees to recover the property. Contact the Sullivan County Treasurer to confirm a current balance or ask about payment options.

Indiana Tax Caps and Sullivan County Rates

Indiana's constitutional circuit breaker caps limit how much property tax can be charged as a percentage of a parcel's assessed value. Homestead residential parcels are capped at 1% of assessed value per year. Other residential land is capped at 2%, and commercial or agricultural property is capped at 3%. These caps apply to Sullivan County parcels the same as every other county in Indiana.

Sullivan County's tax rate reflects the combined levies of the county government, its townships, local school districts, and any municipalities that overlay a given parcel. The Gateway Taxpayer Portal at gateway.ifionline.org shows the levy and budget data for each Sullivan County taxing unit. The DLGF at in.gov/dlgf approves county budgets and publishes annual tax rate information for all Indiana counties.

Nearby Counties

Sullivan County is in southwest Indiana and shares borders with several counties that each maintain their own property tax records and assessment systems.