2026 Property Tax Due Dates
Official SourceFirst installment
December 10
Second installment
April 10
Late Penalty
10% + $10 fee
Payment Methods
Online, mail, in-person
Marin Treasurer
How to Pay Marin Property Taxes
📬
By Mail
Send check to county treasurer
🏢
In Person
Visit treasurer's office
Other Counties in California
Related Resources
Get Deadline Reminders
We'll email you 2 weeks before your property taxes are due.