Massac County, IllinoisProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Tax bill mailing
- June 26, 2026
- Payment deadline
- August 12, 2026 first installment; September 22, 2026 second installment.
- Assessment appeal
- Within 30 days after publication of assessment changes in the local newspaper; no single 2026 calendar date was published.
Exemptions & appeals
View exemption application (opens in a new tab)Senior relief
Massac County identifies a Senior Homestead Exemption for qualifying owners age 65 or older and maintains exemption forms through the Supervisor of Assessments.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.
More exemption & appeal guidance →