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Cost & representation
Flat fee vs. contingency: what is the better way to appeal Cook County taxes?
A contingency service takes a percentage of your savings — commonly 25–50% of the first year, sometimes every year — in exchange for handling the appeal. A flat-fee self-file model charges once and you keep everything the appeal saves. For a typical residential appeal, the self-file model keeps far more money in your pocket over time.
Contingency can make sense for complex commercial cases that genuinely need professional representation. For a house or condo where the evidence is public comparables, paying a recurring share of your own tax savings is the expensive option.
Check your address — freeSee your own assessment math before you file. You keep 100%.