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What is a P.I.N.?
A Property Index Number (PIN) is a unique 14-digit number identifying your property. It's used for the legal description, assessed value, tax bills, and appeals. Find it on your tax bill, assessment notice, or county property records. Using the correct PIN is essential—errors can delay or invalidate an appeal.
Are You Overpaying?
Is your assessment too high? Check your potential savings in under a minute.
ATTORNEYS & CPAs, EVERY VENUE
In 2025 our clients were 1.7 times as likely to win a reduction at the Assessor, and 1.3 times as likely at the Board of Review, as clients of attorneys with 100+ decided residential appeals (2.2 times at the Assessor in 2026 so far, as of October 29, 2026).
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Licensed Illinois tax attorneys & CPAs
Every level: Assessor → Board of Review → PTAB or Circuit Court
Source: Cook County Assessor and Board of Review public appeal records. Past results do not guarantee a similar outcome.
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$0 Upfront cost — no fee unless your assessment is reducedOur fee is 25% of first-year savings, only if your assessment is reduced.
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