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Assessment Ratio Gap Calculator
Unequal assessment is protest grounds. This calculator identifies the gap.
Potential savings
$8,800
Subject ratio %
90.00%
Gap (pts)
8
How the math works
Subject ratio = assessed ÷ market value. Equitable assessment = market × median ratio. Savings = (subject − equitable) × tax rate.
A gap of 5 points on a multi-million-dollar asset translates into serious annual tax dollars. Pull the sales ratio study from the county assessor before filing; that data point is what turns a protest from speculative argument to supported claim.
How to Use
- Enter subject assessment.
- Enter subject market value.
- Enter market median assessment ratio %.
- Enter tax rate %.
- Read potential savings from ratio equity argument.
Frequently Asked Questions
What is equity argument?
'Your assessment ratio (assessed ÷ market) is higher than peer median.' Statutory protection in most states requires uniform/equitable treatment. Strongest argument when ratio gap exceeds 5-10%.
Finding market median?
County assessor publishes annual sales/assessment studies. Academic appraiser consultants calculate ratios. Commercial: compare to recent arm's-length sales of similar property types. Residential: compare to neighborhood median.
Strength of argument?
Strongest when supported by sales ratio study (statistical). Moderate on narrow comp analysis (3-5 comps). Weak on single-point comparison. Stronger in states with explicit uniformity statutes (TX, IL, NY).
When does a lender negotiate vs foreclose?
Lenders calculate their net recovery from foreclosure (asset value minus legal, time, and sale costs) and compare to any workout proposal. If your offer nets the lender more than foreclosure, and you present it with clear sources of capital, most lenders will engage. Bring a credible sponsor, documented sources, and a timeline — vague asks get declined. Build the relationship before distress, not after.
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