WHY YOUR TAXES SPIKED
4 Reasons Your Tax Bill Jumped After Closing
Tax Cap Uncapping (MI)
Michigan's Proposal A caps annual taxable value increases — until the property sells. After closing, the taxable value 'uncaps' to the full State Equalized Value, often doubling or tripling your tax bill overnight.
Reassessment Triggered by Sale
In many jurisdictions, a property sale triggers a full reassessment. The assessor may use your purchase price as the new benchmark — even if you paid above market value to close the deal.
Prior Owner's Exemptions Expired
The previous owner may have held exemptions, abatements, or tax incentives that don't transfer with the property. When those fall off, the full tax burden lands on your first bill.
Sale Price Used as New Value
Assessors often treat your purchase price as proof of market value — regardless of property condition, deferred maintenance, or whether you overpaid in a competitive bidding situation.
STATE-BY-STATE BREAKDOWN
How Each State Handles Post-Purchase Assessments
The rules that drive your post-purchase tax increase depend entirely on where your property sits. Understanding how your state reassesses after a sale is the first step toward fighting back.
Michigan: The biggest culprit is tax uncapping under Proposal A. Annual taxable value increases are capped at 5% or inflation while you own the property — but after a sale, that cap resets and the taxable value jumps to the full SEV. Properties held for decades can see 200-300% increases.
Ohio: Properties are reappraised on a six-year cycle with a triennial update in between. A sale doesn't automatically trigger reassessment, but your purchase price will influence the next reappraisal. New owners should file with the Board of Revision if the assessed value exceeds true market value.
Indiana: Assessors use a trending methodology that adjusts values based on local market data. A sale can shift the trending factor for your property type, and new owners often see assessed values adjusted upward to reflect the purchase price in the next assessment cycle.

YOUR ACTION PLAN
3 Steps to Fight Your Post-Purchase Tax Increase
01
Review Your New Assessment
02
Gather Evidence of Over-Assessment
03
File Your Appeal — or Get Expert Help
AVOID THESE MISTAKES
Mistakes New Owners Make With Property Taxes
Assuming your purchase price is the correct assessed value — it often isn't, especially if you paid a premium or the property has issues
Missing your first appeal deadline — you typically have one shot per year, and the clock starts ticking the moment your assessment notice arrives
Not separating personal property from real property — fixtures, equipment, and tenant improvements may be incorrectly included in your assessment
Ignoring the assessment because you budgeted for higher taxes — even expected increases should be verified against actual market value
Waiting until next year to appeal — every year you delay compounds the overpayment and makes future appeals harder

