Imperial County, CA follows the California statutory schedule. This page shows that schedule, the county's own website, and the late penalty — the county can still set its own dates, so confirm before you pay.
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…until first installment — November 2, 2026
Instalment
Due date
Notes
First installment
November 2, 2026
First installment; a 10% penalty applies if unpaid after December 10.
Second installment
February 2, 2027
Second installment; a 10% penalty applies if unpaid after April 10.
Statewide schedule — read this before you rely on it
All 58 counties use the same November 1 and February 1 due dates and December 10 and April 10 delinquency dates. Most counties in this state follow these dates.
A 10% delinquent penalty attaches after December 10 and after April 10, and long-delinquent property can be sold at a tax-default sale.
County tax collectors mail bills on or before November 1 for the fiscal year beginning July 1.
Imperial County at a glance
Population: 179,057 (Census estimate, 2023) — the 31st largest of 58 California counties and county equivalents.
Typical tax bill: $2,217 a year (median for owner-occupied homes, ACS 2022 5-year estimate) — the California median is $4,694.
Land area: 4,175.5 sq mi, about 42.9 people per sq mi.
On a $400,000 purchase in Imperial County, CA, property tax comes to about $2,880 a year — roughly $240 a month — at this county's effective rate of 0.72%.
$
Effective rate 0.72% = this county's median owner-occupied tax bill ($2,217, ACS 2022 5-year estimate) divided by the typical home value at the time ($308,010, Zillow, 2022-12-31). Exemptions the seller holds — homestead, senior, veteran — usually do not transfer with the deed, so a new purchase can run above this figure. The county assessor sets the assessed value; this is an estimate, not a quote.
How to pay Imperial County property tax
County website:imperialcounty.org — start here for the treasurer or tax collector page.
By post: mail to the county treasurer; the postmark usually counts, not the arrival date.
In person: the treasurer's office, with your bill or parcel number.
Escrow: if your mortgage escrows taxes, the servicer pays — you still owe any shortfall.
Is this county verified?
Not yet. Imperial County is on the queue: we publish a county's own published dates once they have been checked against the county website. Ask for it and it moves up. Until then, the California statutory schedule above is the reliable starting point.
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CountyTaxDates is an independent reference and is not a government agency. Deadlines change and exceptions apply — always confirm with your county treasurer using the official link on this page. Nothing here is tax, legal or financial advice.