
When property taxes are due for Willis homeowners and where to handle your bill, from official Montgomery County sources. Updated July 2026.
Montgomery County property taxes, collected by the Montgomery County Tax Assessor-Collector, are due by January 31 — penalty and interest begin accruing February 1, and mailed payments count by their January 31 postmark. The tax office operates a branch office in Willis alongside the main Conroe office.
The Montgomery County tax office is the official place to view your statement, payment status, and exemption filings.
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