PROPERTY TAX RESEARCH, MADE SIMPLER
Sullivan County, Missouri
Where to look, which office to contact, and how to request records.
Where to obtain records
Sullivan County Treasurer and Ex Officio Collector of Revenue
Confirmed office route; online delinquency unconfirmedContact the office for delinquent property tax records. This guide does not confirm an online search or current bill list.
How to find the information
The July 24, 2026 Missouri State Tax Commission directory lists Sullivan County Treasurer and Ex Officio Collector of Revenue at Sullivan County Courthouse, 109 N. Main St., Ste. 4, Milan, MO 63556, phone 660-265-4514. The state directory confirms the combined Treasurer and Ex Officio Collector in Milan. A county-branded Property Tax Inquiry is indexed, but county endorsement and complete delinquency coverage were not established here. Call to confirm the current portal and inspection/copy procedure for the existing unpaid real-estate ledger. No online fields, historical coverage or electronic export are certified.
For an existing record, give the parcel/account or locator number if known, the tax years and desired as-of date. Specify an unpaid real-estate collection ledger, annual delinquent land list, dated sale publication, certificate/sale result, redemption calculation or surplus/proceeds claim and disbursement record. Ask the office to identify the custodian when the requested court or proceeds record is held elsewhere. Confirm which interest, penalties, assessments, costs and later payments are included. Ask for existing records and available formats; do not assume a custom report will be created. Confirm inspection, electronic-copy, certification and extraction charges before ordering.
What to ask for
“I am looking for publicly available delinquent real-property tax records for Sullivan County for [tax year]. Which office maintains these records? Is there an online search or downloadable list? If not, how can I request a copy, and what fees apply?”
Have the property address, parcel number, owner name, and tax year ready when searching for a particular property.
County-specific notes
Contact status: this is a confirmed office route, not confirmation of an online delinquency database. Reviewed October 28, 2026. Ordinary annual bills, unpaid ledgers, dated advertised sale lists, certificates, redemption records and surplus proceeds have different scope. A past sale date is not an upcoming event. Confirm subsequent payments and the exact record date with the custodian. No taxpayer search, owner-list reproduction, records-request submission, account registration, auction enrollment or payment occurred.
Need help with your research?
Understand tax lists, prepare a records request and check whether a publication is current.