Kern County Property Tax Due Dates: New Homeowner Guide

In Kern County, the first installment of your property tax bill is due November 1 and becomes delinquent after 5:00 PM on December 10. The second installment is due February 1 and normally becomes delinquent after 5:00 PM on April 10. In 2027, April 10 is a Saturday, so that deadline moves to 5:00 PM on Monday, April 12. Miss either one and the county adds a 10 percent penalty, even if the bill never reached you.

Those dates come straight from the Kern County Treasurer-Tax Collector and the Auditor-Controller, read October 28, 2026. If you bought a home this year, this is the bill that catches people. Here is what to check and when.

The Kern County property tax calendar for 2026-27

Kern County's tax year runs July 1 through June 30. The bill you pay this winter and spring covers July 1, 2026 through June 30, 2027, and it is based on the property as it stood on January 1, 2026, the lien date.

Why April 12 and not April 10? The Treasurer-Tax Collector's rule is that when a deadline falls on a Saturday, Sunday or legal holiday, delinquency moves to 5:00 PM on the next business day. April 10, 2027 is a Saturday. I would still pay early and not plan around the extra days.

What a late payment costs

The penalties are set by California law, and the Treasurer-Tax Collector's office says plainly that it cannot waive them because you never got a bill.

• A 10 percent penalty on the first installment after 5:00 PM on December 10.
• A 10 percent penalty plus a $10 cost on the second installment after the April deadline (5:00 PM on April 12 in 2027).
• If taxes are still unpaid after June 30, the property is tax defaulted, and a $15 redemption fee plus 1.5 percent a month (18 percent a year) is added on the unpaid tax.

To put the first one in dollars: on a first installment of $2,000, a payment one day late adds $200. That money buys nothing.

Bought a home this year? Here is who pays

This is where new owners get surprised. The name on an annual bill cannot be changed once it is issued, so this year's bill may carry the seller's name or never reach you at all. The county is clear that the new owner is still responsible. Its own wording for new buyers is not to wait to be notified.

When you closed, escrow most likely split the current year's taxes between you and the seller by the number of days each of you owned the home between July 1 and June 30. That split is between the two of you. The county still expects the full installment from whoever owns the home on the due date. Look at your closing statement for a property tax credit or charge so you know what was already settled.

Two more things for a new owner. Unpaid taxes stay a lien on the home after a sale, so if the seller agreed to pay an installment, confirm it actually reached the county. And make sure the Kern County Assessor-Recorder has your mailing address (661-868-3485, or 1115 Truxtun Avenue, Bakersfield), so next year's bill comes to you.

Closing in November or early December is the tight spot. The county tells buyers to decide in escrow who pays the installment due December 10, and to confirm there are no unpaid taxes from earlier years. If you are in escrow right now, ask your escrow officer this week.

Does your lender pay it for you?

Maybe. Many loans include an impound account, also called an escrow account, where the lender collects for taxes and insurance and pays the county for you. Others do not, and you pay the county directly. Your loan documents say which one you have, and your lender can confirm it in one phone call.

Even with an impound account, check one thing. A supplemental tax bill, the extra bill that comes after a purchase or new construction, may be mailed to you instead of your lender, so ask your lender whether they pay it. I wrote up how that bill works in my guide to the Kern County supplemental tax bill.

The bills a new owner can get in the first year

1. The annual secured bill. Two installments, the dates above. It carries the 1 percent base tax plus voter approved charges for your area, explained in my post on the Kern County property tax rate.
2. A supplemental bill. Sent after a sale or completed new construction to catch the tax up to the new value. It has its own due dates printed on it.
3. Special taxes on the bill. In some newer neighborhoods the annual bill also carries a special tax line, such as a Mello-Roos district. Here is how to check a home for Mello-Roos.

File the $7,000 homeowners' exemption

California gives a $7,000 reduction in taxable value on a home that is the owner's main residence on January 1. You file once with the Kern County Assessor-Recorder on form BOE-266, and the claim stays in place until you move or stop living there.

The home has to be your main residence on the January 1 lien date, and a claim filed by February 15 gets the full exemption for that year's bill. So if you moved in during 2026, filing by February 15, 2027 covers the 2027-28 bill. Ask the Assessor-Recorder how it applies to a supplemental bill or a late filing. Because the base tax is 1 percent of assessed value under Article XIII A of the California Constitution, the exemption saves at least $70 a year. It is small, and a lot of new owners never file for it. If you later rent the home out or move, you have to tell the Assessor-Recorder, and December 10 is the last day to end it without a penalty.

Think your assessed value is too high? November 30 matters

If you think your home's market value on January 1, 2026 was lower than the assessed value on your bill, you can ask the Assessor-Recorder for a review. That is called a Prop 8 review. November 30, 2026 is the last day to ask for one on the current bill, and it is also the last day to file a formal assessment appeal with the Clerk of the Board of Supervisors.

Start with a call to the Assessor-Recorder at 661-868-3485. The review is worth asking about if similar homes near you sold for less than your assessed value around January 1. Bring those sales with you. For a supplemental or escape assessment, you have 60 days from the mailing date on that bill. A Prop 8 review is an informal request to the Assessor-Recorder; a formal appeal goes to the Clerk of the Board, which has the forms and any filing fee. Either way, keep paying on time while it is pending. The due dates on your bill do not move.

How to look up and pay your Kern County property tax

• Find your bill. Search by your Assessor Tax Number (ATN) or address on the Kern County Treasurer-Tax Collector website. Your ATN is on your closing papers.
• Pay online. The county takes Visa, Mastercard, American Express and Discover online 24 hours a day. A convenience fee applies to card payments.
• Pay by mail. Send your check with the payment stub and write your ATN on the check. The postmark decides whether you paid on time, so mail it early.
• Pay both at once. You can pay both installments together in November if you would rather be done.

If you are missing a bill, the Tax Collection Division is at 661-868-3490. Address and exemption questions go to the Assessor-Recorder at 661-868-3485.

Common questions

When is the first property tax installment due in Kern County?

November 1. It becomes delinquent after 5:00 PM on December 10, and a 10 percent penalty is added at that point. December 10, 2026 is a Thursday.

When is the second installment due in 2027?

It is due February 1, 2027. Normally it becomes delinquent after 5:00 PM on April 10, but April 10, 2027 is a Saturday, so the deadline moves to 5:00 PM on Monday, April 12, 2027.

I never got a tax bill. Do I still owe the penalty?

Yes. Under California law it is the owner's job to get the bill and pay on time, and the county will not waive a penalty because a bill did not arrive. Look it up online by your ATN or call 661-868-3490.

Does my mortgage payment cover my property taxes?

Only if your loan has an impound account. Check your loan documents or ask your lender. Ask too whether they pay supplemental bills, since one may be mailed to you directly.

Who pays the December 10 installment if I close in November?

You and the seller decide that in escrow, and the county asks buyers to settle it before closing. The agreement does not change what the county is owed: the tax stays a lien on the home until it is paid, so confirm the installment was paid. Your closing statement shows how the taxes were split.

When do I file the homeowners' exemption?

Between January 1 and February 15, with the Kern County Assessor-Recorder on form BOE-266. The home has to be your main residence on January 1, and a claim filed by February 15, 2027 gets the full exemption on the 2027-28 bill.

Is there help for seniors with property taxes?

The State Controller runs a Property Tax Postponement program for homeowners who are seniors, blind or disabled and meet its rules. The county lists the application window as October 1 to February 10 each year.

Before you buy, know the tax bill

Taxes are one of the costs people forget to picture when they look at a home, and the amount depends on the price you pay and the voter approved charges where the home sits. Keep in mind the seller's current bill is based on the seller's assessed value, not your price, and the home is reassessed when you buy it. If you are buying this fall or winter, I'll show you the current bill and walk you through how the tax gets figured on your price before we write an offer, so you have a clearer picture going in. Call or text me at 661-933-8428. If you are buying your first home, start with my free first-time buyer roadmap or the first-time buyer questions I get asked most.

Tax dates and penalties are from the Kern County Treasurer-Tax Collector and the Kern County Auditor-Controller, read October 28, 2026. The homeowners' exemption is from the California State Board of Equalization. For your own bill, the county offices above have the final word. The photo in this post's featured image is an illustration, not a real home.

Only a licensed lender can quote a rate, a payment or an APR for your situation. Equal Housing Opportunity.

Julio Ochoa | Next Level Realty | CalDRE 02198776 | 661-933-8428