Lake County residential property values grew +49.9% in five years. Commercial grew 11.5%. Someone has to pay the difference — and right now, that's you. Appeal your assessment in any of Indiana's 92 counties.
Indiana's mass appraisal system applies broad formulas across entire neighborhoods statewide — systematically over-valuing distressed, aging, and deferred-maintenance properties in all 92 counties. Calumet Township is the most extreme documented case, but over-assessment happens everywhere from Indianapolis to Evansville.
Lake County will NOT issue Form 11 assessment notices for 25pay26. Your tax bill IS the notice. You must file Form 130 by June 15, 2026 — or lose your right to appeal for the year.
Search the Indiana Gateway database by address. Your assessed value, parcel number, and property details auto-fill from public records.
Pull real comparable sales from all 92 Indiana counties. Distressed comps auto-sorted first — the ones that prove your case.
Our AI analyzes your property photos — water damage, dated kitchens, deferred maintenance — and produces a formal condition report.
Download your complete appeal packet: auto-filled Form 130, valuation model, comp table, condition report, and a ready-to-read hearing statement.
Every parcel in all 92 Indiana counties — real property, tax bills, and adjustments — pulled directly from DLGF's official Gateway system. 5 years of assessment history. Updated annually.
All TiersUpload photos of water damage, dated kitchens, worn flooring, structural issues. AI returns a formal condition rating, percentage adjustment, and specific findings you can cite at the hearing.
Free: 5 photos Pro: 20 photosTwo-approach valuation per Indiana IAC 2-4.2-4 mass appraisal standards: sales comparison approach (weighted toward distressed comps) and cost approach (age-adjusted replacement cost). Produces a defensible suggested value with a formal narrative.
Pro & Pro+Indiana's official Taxpayer's Notice to Initiate an Appeal, auto-filled with your property data, grounds statement written from your comp and AI evidence, and burden-of-proof language included where applicable. Download, sign, file.
Pro & Pro+One download containing everything the PTABOA needs: cover letter, property summary, Calumet Township over-assessment context (where applicable), neighborhood statistics from Gateway data, full comparable sales table with $/sf calculations, AI condition assessment with photo findings, valuation model summary with IAC citation, and a formatted verbal hearing statement. Print it. Bring it. Win.
Pro & Pro+Calumet Township is the most over-assessed area in Indiana — and the data proves it. While commercial property owners saw modest increases, homeowners absorbed nearly all of the tax burden growth. Our toolkit is purpose-built for this fight — and the same tools work for property owners in every one of Indiana's 92 counties.
No subscriptions. No contingency cuts. No surprises. Pay once per appeal.
"I had no idea my assessment had jumped 18% in one year. The app flagged it immediately and reminded me the burden of proof shifts to the assessor. Filed Form 130 the same day."
"I own seven properties in Calumet Township. The Pro+ batch processing saved me days of work. Seven complete appeal packets in an afternoon."
"The AI found water damage in my photos I hadn't even mentioned. It wrote a better grounds statement than I would have. The board reduced my assessment by $22,000."