Upon contacting the assessor, the assessor shall return phone calls and emails within 3 days of the initial correspondence. Longer than typical response times can be expected during assessment notice preparation, March Board of Review, July Board of Review, and December Board of Review.
Rock River Township assessment department is available by appointment only. Please contact the assessor to arrange in-person meeting if necessary.
Online Access to Data and Maps
Since the Township does not have a full-time staff, for your convenience the Township has provided the public with access to all assessing, tax and mapping information online, 24 hours a day, 7 days a week.
The assessing data will be available through BS&A by the link below. The assessing information will give you the record card information including building contents break down, sketches and land information where available. You will be able to search by address, owners name, or parcel number.
Maps are provided through Alger County Equalization Department. Please find the link below to access Colligo GIS, the site that houses the maps.
Link to Colligo Gis
Link to BS&A
Land Values
Each year vacant land sales are analyzed, and land values are categorized and calculated, then applied in the valuation process. Please see below for the land value grid used.
Link to land value grid
Economic Condition Factors
Each year the sales of improved properties are analyzed, and Economic Condition Factors (ECF’s) are calculated and applied in the valuation process. Please see below for the data by year.
Link to ECF grid
Contact Information for Delinquent Taxes
Delinquent taxes are transferred to the Alger County Treasurers office in February of each year. Inquiries regarding tax amounts and payment status after February should be directed to the Alger County Treasurers office.
Current Tax Bill Status
Current year tax inquires can be directed to the Rock River Township Treasurer.
[email protected]
Assessment Change Notices
Assessment change notices are mailed out at the end of February each year. Change notices will include tentative values, property classification and exemption status for the following year, and will include information on how and when to protest values if necessary.
Parcel Splits and Combinations
Splits and combinations are processed in January of each year. Below is a land division application. This form needs to be complete and submitted, with payment to the Rock River Township Hall.
Land Division Application
Exemption Forms and Documentation
Please see below for a selection of property tax exemption forms
Disabled Veterans Exemption Form
PRE Affidavit : Principal Residence Exemption
PRE Rescind : Principal Residence Exemption
Poverty Exemption Form
How to Protest an Assessment
Tax assessments can be disputed each year at the March Board of Review. Absentee protests are
accepted, and will need a fully completed 4035a (protest to the march board of review) and any
supporting documentation necessary. All of which needs to be submitted by the day preceding
the final meeting of the Mach Board of Review.
Petition Form to the March Board of Review
Rock River Township assessment department is available by appointment only. Please contact the assessor to arrange in-person meeting if necessary.
Online Access to Data and Maps
Since the Township does not have a full-time staff, for your convenience the Township has provided the public with access to all assessing, tax and mapping information online, 24 hours a day, 7 days a week.
The assessing data will be available through BS&A by the link below. The assessing information will give you the record card information including building contents break down, sketches and land information where available. You will be able to search by address, owners name, or parcel number.
Maps are provided through Alger County Equalization Department. Please find the link below to access Colligo GIS, the site that houses the maps.
Link to Colligo Gis
Link to BS&A
Land Values
Each year vacant land sales are analyzed, and land values are categorized and calculated, then applied in the valuation process. Please see below for the land value grid used.
Link to land value grid
Economic Condition Factors
Each year the sales of improved properties are analyzed, and Economic Condition Factors (ECF’s) are calculated and applied in the valuation process. Please see below for the data by year.
Link to ECF grid
Contact Information for Delinquent Taxes
Delinquent taxes are transferred to the Alger County Treasurers office in February of each year. Inquiries regarding tax amounts and payment status after February should be directed to the Alger County Treasurers office.
Current Tax Bill Status
Current year tax inquires can be directed to the Rock River Township Treasurer.
[email protected]
Assessment Change Notices
Assessment change notices are mailed out at the end of February each year. Change notices will include tentative values, property classification and exemption status for the following year, and will include information on how and when to protest values if necessary.
Parcel Splits and Combinations
Splits and combinations are processed in January of each year. Below is a land division application. This form needs to be complete and submitted, with payment to the Rock River Township Hall.
Land Division Application
Exemption Forms and Documentation
Please see below for a selection of property tax exemption forms
Disabled Veterans Exemption Form
PRE Affidavit : Principal Residence Exemption
PRE Rescind : Principal Residence Exemption
Poverty Exemption Form
How to Protest an Assessment
Tax assessments can be disputed each year at the March Board of Review. Absentee protests are
accepted, and will need a fully completed 4035a (protest to the march board of review) and any
supporting documentation necessary. All of which needs to be submitted by the day preceding
the final meeting of the Mach Board of Review.
Petition Form to the March Board of Review