Rock Island availability

Dated product journey evidence

Evidence below is separate from county capability and your property’s offer. Local source-to-PDF fixtures are not hosted purchases. Shared commerce proof does not establish every address or township; only the normal property check determines the appropriate $5 or $50 product.

• $5 property evidence review: unproven

  Not separately exercised. not exercised. No dated product-specific journey proof has been admitted here. Existing county source/PDF evidence remains separately scoped; this does not establish a new failure, a countywide impossibility, or that both products must apply to one property.

• $50 appeal preparation packet: unproven

  Not separately exercised. not exercised. No dated product-specific journey proof has been admitted here. Existing county source/PDF evidence remains separately scoped; this does not establish a new failure, a countywide impossibility, or that both products must apply to one property.

Official dates, forms and filing instructions

Last checked 2026-11-07T14:03:35.479Z. Current detail unresolved; last verified information is retained below. Confirm the applicable notice and instructions with the official authority.

Last verified filing facts: 2026-10-31T04:52:39.070Z. Assessment year is distinct from tax payable year.

• deadline — 2026 assessment; countywide

  Published filing deadline: 2026-10-26. Opening date unknown. Confirm this is your township or scope with the official authority.

  Full official source quote for countywide — 2026 assessment

  Other townships or scopes in the quote are source context, not deadlines for this scope.

  For the assessments, the publication date is September 26 th , 2026 and the last day to file an appeal is October 26 th , 2026.

  Official source
• deadline — 2026 assessment; Countywide

  Published filing deadline: 2026-10-26. Opening date unknown. Confirm this is your township or scope with the official authority.

  Full official source quote for Countywide — 2026 assessment

  Other townships or scopes in the quote are source context, not deadlines for this scope.

  When are assessed values published? All assessed values are published by the Chief County Assessment Office (CCAO). For the assessments, the publication date is September 26 th , 2026 and the last day to file an appeal is October 26 th , 2026. According to the Illinois Property Tax Code, your appeal cannot be accepted after the deadline.

  Official source
• deadline — 2026 assessment; Countywide

  Published filing deadline: 2026-10-26. Opening date unknown. Confirm this is your township or scope with the official authority.

  Full official source quote for Countywide — 2026 assessment

  Other townships or scopes in the quote are source context, not deadlines for this scope.

  When are assessed values published? All assessed values are published by the Chief County Assessment Office (CCAO). For the assessments, the publication date is September 26 th , 2026 and the last day to file an appeal is October 26 th , 2026. According to the Illinois Property Tax Code, your appeal cannot be accepted after the deadline.

  Official source
• deadline — 2026 assessment; Countywide

  Published filing deadline: 2026-10-26. Opening date unknown. Confirm this is your township or scope with the official authority.

  Full official source quote for Countywide — 2026 assessment

  Other townships or scopes in the quote are source context, not deadlines for this scope.

  When are assessed values published? All assessed values are published by the Chief County Assessment Office (CCAO). For the assessments, the publication date is September 26 th , 2026 and the last day to file an appeal is October 26 th , 2026. According to the Illinois Property Tax Code, your appeal cannot be accepted after the deadline.

  Official source
• publication — 2026 assessment; countywide

  Printed assessment publication: 2026-09-26. Calculated 30-calendar-day statutory endpoint: 2026-10-26 (35 ILCS 200/16-55(d)). Calculated 30-calendar-day endpoint, not a separately printed filing deadline. Check weekends and statutory holidays under 5 ILCS 70/1.11 and any official general extension; the printed applicable deadline controls. Publication alone does not establish a filing opening. Statutory rule; Weekend and holiday computation.

  For the assessments, the publication date is September 26 th , 2026 and the last day to file an appeal is October 26 th , 2026.

  Official source
• publication — 2026 assessment; Countywide

  Printed assessment publication: 2026-09-26. Calculated 30-calendar-day statutory endpoint: 2026-10-26 (35 ILCS 200/16-55(d)). Calculated 30-calendar-day endpoint, not a separately printed filing deadline. Check weekends and statutory holidays under 5 ILCS 70/1.11 and any official general extension; the printed applicable deadline controls. Publication alone does not establish a filing opening. Statutory rule; Weekend and holiday computation.

  When are assessed values published? All assessed values are published by the Chief County Assessment Office (CCAO). For the assessments, the publication date is September 26 th , 2026 and the last day to file an appeal is October 26 th , 2026. According to the Illinois Property Tax Code, your appeal cannot be accepted after the deadline.

  Official source
• publication — 2026 assessment; Countywide

  Printed assessment publication: 2026-09-26. Calculated 30-calendar-day statutory endpoint: 2026-10-26 (35 ILCS 200/16-55(d)). Calculated 30-calendar-day endpoint, not a separately printed filing deadline. Check weekends and statutory holidays under 5 ILCS 70/1.11 and any official general extension; the printed applicable deadline controls. Publication alone does not establish a filing opening. Statutory rule; Weekend and holiday computation.

  When are assessed values published? All assessed values are published by the Chief County Assessment Office (CCAO). For the assessments, the publication date is September 26 th , 2026 and the last day to file an appeal is October 26 th , 2026. According to the Illinois Property Tax Code, your appeal cannot be accepted after the deadline.

  Official source
• publication — 2026 assessment; Countywide

  Printed assessment publication: 2026-09-26. Calculated 30-calendar-day statutory endpoint: 2026-10-26 (35 ILCS 200/16-55(d)). Calculated 30-calendar-day endpoint, not a separately printed filing deadline. Check weekends and statutory holidays under 5 ILCS 70/1.11 and any official general extension; the printed applicable deadline controls. Publication alone does not establish a filing opening. Statutory rule; Weekend and holiday computation.

  When are assessed values published? All assessed values are published by the Chief County Assessment Office (CCAO). For the assessments, the publication date is September 26 th , 2026 and the last day to file an appeal is October 26 th , 2026. According to the Illinois Property Tax Code, your appeal cannot be accepted after the deadline.

  Official source

Official guidance — assessment year not stated

Matched to the official source on 2026-11-07T14:03:35.479Z. These instructions do not confirm a current-year deadline or form version.

• form

  they can file an appeal with the Rock Island County Board of Review, on the required forms.

  Official source
• form

  appeal with the Rock Island County Board of Review, on the required forms. Such a complaint or appeal must be filed, by state law, within 30 days of the publication of the assessment list in the local paper. The 30-day time limit for filing from the date of publication will not be changed to allow for discussing the assessment with the

  Official source

You file your own appeal. This information does not change county capability, verify a property’s filing eligibility, or unlock paid preparation. No legal/tax advice or county affiliation.

What the property check looks for