When is the property tax appeal deadline for Westchester 60154 in 2026?

ZIP 60154 is in Proviso Township. Proviso Township: file with the Cook County Assessor by October 27, 2026.

How many homes in 60154 are assessed too high?

Of 7,141 homes we checked, 2,487 (35%) come up assessed higher than similar homes nearby or above what similar homes sold for. The median estimated saving among them is about $462 a year.

Do I need a lawyer to appeal?

No. Filing with the Cook County Assessor and the Board of Review is free and homeowners can file for themselves.

Westchester 60154 property tax appeal 2026

35% of homes here may be assessed higher than similar homes nearby.

Deadline

Proviso Township: file with the Cook County Assessor by October 27, 2026.(5 days left) Proviso filing guide

What the public records show

Homes checked: 7,141
May be assessed too high: 2,487 (35%)
Median estimated saving: $462 a year

Data as of October 20, 2026. Source: Cook County Assessor open data (2026 assessed values, property characteristics and recorded sales), checked by Morganwell. Estimates from public records, not an appraisal and not a promise; the county decides every appeal. How the check works

Streets in 60154

Questions

When is the property tax appeal deadline for Westchester 60154 in 2026?: ZIP 60154 is in Proviso Township. Proviso Township: file with the Cook County Assessor by October 27, 2026.
How many homes in 60154 are assessed too high?: Of 7,141 homes we checked, 2,487 (35%) come up assessed higher than similar homes nearby or above what similar homes sold for. The median estimated saving among them is about $462 a year.
Do I need a lawyer to appeal?: No. Filing with the Cook County Assessor and the Board of Review is free and homeowners can file for themselves.

Morganwell is not a law firm and does not give legal advice. You file your own appeal. No outcome is guaranteed.