Three calculators built on state-specific assessment math. Each uses the published statutory ratio for its state (e.g., Illinois 33⅓%, Florida 40% with Save Our Homes cap, California Prop 13 acquisition value, Connecticut 70%, Ohio 35%, Georgia 40%) and current-year exemption stacks.
State-aware estimate of an annual property tax bill given home value and homestead status. Applies the correct statutory ratio, current-year homestead exemption, and a representative effective millage for each state. Useful before buying a home, before filing an appeal, or to compare absolute-dollar burden across states.
Given a current assessed value, target reduced value, and state, computes the annual tax savings AND cumulative multi-year savings — including state-specific carry-forward periods (e.g., Illinois §16-185 PTAB rollover, Massachusetts assessment freeze for 2 additional years post-CBT win, New Jersey CBT freeze under N.J.S.A. 54:3-26).
Service-vs-DIY breakeven calculator →
Given a contingency fee percentage, target reduction, and current bill, computes the breakeven point where hiring a contingency-fee service company beats DIY. Most service companies charge 25-40%; this tells you the minimum reduction needed for the engagement to be worth it on a one-year basis.
All calculators use:
For specific case math, the underlying state cornerstones contain the full statutory framework — see the homepage for state cornerstones across all 12 covered states.
The Property Tax Desk Editorial Team