Mendocino County Tax Collector Office: Pay Tax Bill & Hours
Use this Mendocino County Tax Collector guide to pay your property tax bill online, find the Ukiah Treasurer-Tax Collector office, check office and phone hours, call the right number, search by parcel number or street address, understand secured, supplemental and unsecured tax deadlines, avoid 10% penalties, and know when to contact the Assessor or Auditor-Controller instead of the Tax Collector.
The Mendocino County Tax Collector office is part of the Mendocino County Treasurer-Tax Collector. The office address is 501 Low Gap Road, Room 1060, Ukiah, CA 95482. The main phone number is 707-234-6875, fax is 707-463-4166, and the listed email is ttc@mendocinocounty.org. Office hours are listed as Monday-Friday, 8:00 AM-5:00 PM, and phone hours are listed as Monday-Friday, 9:00 AM-4:00 PM. You can pay property taxes online through the official Mendocino County public access portal.
Official source: Mendocino County Treasurer-Tax Collector directory and official public access payment portal.What the Mendocino County Tax Collector Office Actually Handles
Most people searching “Mendocino County Tax Collector” need a payment link, office hours, phone number, mailing/office address, tax bill lookup, penalty explanation, or help with a late property tax bill.
When Is Your
Next Tax Deadline?
Select your state — see your exact deadline, live countdown, and whether you’re on time or already accruing penalties.
The Tax Collector is the correct starting point for distribution of tax bills, tax redemption, taxes paid, sales of property for unpaid taxes, and redemption of tax-defaulted property. If your question is about property value or exemptions, the Assessor is usually the correct office. If your question is about tax levies, rates, district valuations or bond requirements, the Auditor-Controller may be the correct office.
Property Tax Penalty & Interest Calculator
State-specific penalty rates • Interest accrual • Tax lien deadline • Cost-of-waiting breakdown
| Original Tax Amount | $0.00 |
| Initial Penalty— | $0.00 |
| Monthly Interest— | $0.00 |
| Fixed Fees— | $0.00 |
| Total Due | $0.00 |
Daily Accrual Rate
Interest and penalties are adding this much to your balance every single day
Tax Lien Warning
| If You Pay On | Days Late | Penalty | Interest | Total Owed | Extra Cost |
|---|
Use the Tax Collector for payment
Paying tax bills, confirming taxes paid, redemption questions, delinquent tax handling, tax-defaulted property and tax bill payment support.
Use the Assessor for value
Property valuation, exemptions, property records, ownership details, taxable property discovery and assessment-roll questions.
Use Auditor-Controller for rates
District tax rates, levies, bond requirements and property tax distribution questions can involve the Auditor-Controller.
How to Pay a Mendocino County Property Tax Bill Online
Mendocino County directs taxpayers to the public access portal for property tax bill lookup and payment. The portal allows users to search by Assessor Parcel Number, account number or street address.
Before paying, confirm the parcel, situs address, tax year, installment, amount due and payment method. If your first search does not work, try a cleaner search with fewer words, a partial street name, the exact parcel number, or the account number shown on the tax bill.
Official source: Mendocino County Tax Collector Public Access Page.Open the official payment portal
Use the official Mendocino County public access portal. Do not enter card or bank details on a third-party page that only looks like a county payment screen.
Open official public access portalSearch by parcel, account or street address
The portal supports lookup by Assessor Parcel Number, account number or street address. Match the property carefully before continuing.
Read official property tax public access instructionsSelect the correct tax bill
Check whether the bill is secured, supplemental, unsecured, prior-year, delinquent, business license or another payment type.
Open miscellaneous tax payment pageReview convenience fees before checkout
Mendocino County says online billing services can use credit card, debit card or electronic check payments, and that a convenience fee is charged by the vendor.
Read official pay online pageSave proof of payment
Print or save your receipt, confirmation number, tax year, parcel/account number, paid amount, date and payment method.
See receipt checklistProperty tax bill payment
Use the public access portal for property tax search and payment by parcel number, account number or street address.
Open Property Tax PortalOther tax bills and assessments
For installment five-pay plans, unsecured prior-year tax payments, Transient Occupancy Tax and Business Improvement District Assessment, use the county miscellaneous tax bill payment page.
Open Miscellaneous TaxesMendocino County Tax Bill Search by Parcel Number, Account Number or Street Address
The public access page is designed for taxpayers who need to look up a record or pay a bill. For property taxes, it says users can search by Assessor Parcel Number, account number or street address.
| What you know | Best search method | What to verify before paying |
|---|---|---|
| Parcel number | Search by Assessor Parcel Number in the public access portal. | Owner, situs address, tax year, installment and balance. |
| Street address | Search by street address or partial address if the exact address fails. | Unit number, city, situs address, parcel number and year. |
| Account number | Use the account number printed on your tax bill or notice. | Bill type, current vs prior year, paid status and penalties. |
| Business license number | Use the business license search and payment option in the public access portal. | Business name, renewal year and payment amount. |
If you cannot find the bill, do not guess. Try fewer search terms, remove punctuation, use only the street number and street name, or call the Treasurer-Tax Collector with the property details you have.
Official source: Mendocino County Public Access portal.Mendocino County Tax Collector Office Address, Phone, Email and Hours
The official county directory lists the Treasurer-Tax Collector at 501 Low Gap Road, Room 1060, Ukiah, CA 95482.
Treasurer-Tax Collector Office
Use for tax bills, tax payment, redemption and Tax Collector routing
Listed Hours
Always verify closures, holidays and special notices before visiting
Mendocino County Tax Collector Office Hours and Best Time to Call
The official directory lists office hours as Monday-Friday, 8:00 AM to 5:00 PM, and phone hours as Monday-Friday, 9:00 AM to 4:00 PM.
Calling first is smart if your issue involves a payment deadline, escrow payment, supplemental bill, unsecured tax bill, delinquent account, tax-defaulted property, business license payment or an account that does not appear in the portal.
Official source: Mendocino County Treasurer-Tax Collector directory.Best time to call
Call during listed phone hours and avoid waiting until the final delinquency date. Have your parcel or account number ready.
Before visiting
Check current county closures, holidays, special notices, parking and whether your payment method is accepted at the office.
Deadline-day caution
Online payment, portal search, bank issues, traffic or long call wait times can create late-payment risk if you wait too long.
Mendocino County Tax Collector Phone Number and Payment-by-Phone
For Treasurer-Tax Collector office questions, use 707-234-6875. The county FAQ also says secured property taxes may be paid by phone by calling 855-857-3625.
| Need | Phone / contact | Use this for |
|---|---|---|
| Tax Collector office | 707-234-6875 | Office routing, property tax payment questions, bill lookup help, redemption and Tax Collector service. |
| Secured property tax payment by phone | 855-857-3625 | Secured property tax payment by phone, as listed in the county FAQ. |
| ttc@mendocinocounty.org | Written Tax Collector questions when email is appropriate. | |
| Fax | 707-463-4166 | Faxed documents only when instructed by the office. |
Mendocino County Property Tax Due Dates: Secured, Supplemental and Unsecured Bills
For regular secured property taxes, Mendocino County says the Tax Collector mails secured tax bills on or before October 31 each year. The first installment is due November 1 and delinquent after December 10. The second installment is due February 1 and delinquent after April 10.
Official source: Mendocino County property tax process.| Bill type | Due date | Delinquent / penalty trigger |
|---|---|---|
| Secured property tax first installment | Due November 1 | Delinquent after December 10; 10% penalty attaches. |
| Secured property tax second installment | Due February 1 | Delinquent after April 10; 10% penalty plus $20 cost charge attaches. |
| Unsecured property tax | Mailed in July; payable in one installment | Delinquent if not paid by August 31. |
| Supplemental tax bill | Due on the date mailed | Delinquency date depends on the month the bill is mailed. |
Senior-friendly deadline warning
Do not wait until the last day to pay. If the portal cannot find your parcel, if the payment card fails, if mail is not postmarked correctly, or if you selected the wrong bill, penalties can still become a problem.
Mendocino County Property Tax Penalties: What Happens After December 10, April 10 and June 30
Mendocino County’s property tax process page says a 10% penalty attaches after the first installment becomes delinquent, and an additional 10% penalty plus a $20 cost charge attaches after the second installment becomes delinquent.
If secured or supplemental taxes remain unpaid as of July 1 of the following year, interest accrues at 1.5% per month on the original tax amount until paid in full, and a state fee is also assessed. If taxes remain unpaid after five years from the first year of delinquency, the Tax Collector must record a Notice of Power to Sell Tax-Defaulted Property.
Official source: Mendocino County property tax process details.After December 10
First installment becomes delinquent after December 10, and a 10% penalty attaches.
After April 10
Second installment becomes delinquent after April 10, and a 10% penalty plus $20 cost charge attaches.
After June 30 / July 1
Additional monthly interest can begin for unpaid secured or supplemental taxes, and long-term unpaid taxes can move toward tax-defaulted property sale procedures.
Mendocino County Tax Collector vs Assessor vs Auditor-Controller
A tax bill problem is not always a Tax Collector problem. Mendocino County explains that different property tax questions belong to different public offices.
| Your question | Correct office | Why |
|---|---|---|
| I need to pay, confirm paid status, redeem taxes or ask about tax-defaulted property. | Tax Collector | The Tax Collector handles tax bills, taxes paid, redemption and unpaid-tax sales. |
| My property value, ownership or exemption looks wrong. | Assessor | Valuation and exemptions are assessment issues, not payment-counter changes. |
| I need tax rate, levy, bond or district valuation details. | Auditor-Controller | The Auditor-Controller handles district valuations, tax levies, rates and distribution context. |
| I just received a supplemental bill after buying or improving property. | Start with Tax Collector for payment, Assessor for value details | Supplemental bills involve ownership/new construction value changes and payment deadlines. |
Mendocino County Supplemental Property Tax Bills After Purchase or New Construction
Mendocino County says supplemental tax bills are mailed whenever there is a change in ownership or when new construction is completed. Supplemental bills are in addition to the regular property tax bill and any other property taxes due on the property.
Supplemental bills are due on the date mailed. If the bill is mailed from July through October, the first installment becomes delinquent after December 10 of the same year and the second after April 10 of the following year. If the bill is mailed from November through June, different month-based delinquency rules apply.
Official source: Mendocino County supplemental tax bill rules.New owner warning
A supplemental bill can arrive after closing. Do not assume the regular secured tax bill is the only bill connected to your property.
Do not confuse refunds and bills
Mendocino County notes that a supplemental tax bill or refund is in addition to the regular property tax bill and any other property taxes due.
Ask the right office
Use the Tax Collector for payment and delinquency questions. Use the Assessor if the ownership change, new construction value or assessment calculation looks wrong.
Mendocino County Unsecured Property Taxes: August 31 Deadline
Mendocino County says unsecured tax bills are mailed in July each year. They are payable in one installment and become delinquent if not paid by August 31.
If unsecured property taxes remain unpaid, interest starts to accrue on November 1 at 1.5% per month on the original tax amount until paid in full. Unsecured taxes can involve business property, personal property, leased equipment or other property not secured by real estate in the same way as regular secured property taxes.
Official source: Mendocino County unsecured property tax process.Unsecured tax mistake to avoid
Do not assume an unsecured tax bill can be split like a regular secured property tax bill. Mendocino County says unsecured bills are payable in one installment.
Mendocino County Tax Bill Receipt, Payment Proof and Account Checklist
Keep proof after paying online, by phone, by mail or at the office. A receipt can be important for escrow questions, home sale records, tax-default issues, refunds, accounting or family paperwork.
Receipt should show
- Parcel number or account number
- Situs address or property address
- Tax year
- Bill type: secured, supplemental, unsecured or miscellaneous
- Installment paid
- Payment date and amount
- Confirmation number or receipt number
Save extra proof
- Bank or card confirmation
- Portal screenshot after payment
- Phone payment confirmation
- Mailing proof if mailed
- Name/date if you spoke with the office
If your payment does not appear, do not pay again without checking. Compare the confirmation, parcel/account number, date, payment method and bill type, then contact the Treasurer-Tax Collector.
Official starting point: Mendocino County Treasurer-Tax Collector.Mortgage, Escrow and New-Owner Property Tax Questions in Mendocino County
If your mortgage company is supposed to pay from escrow, still verify the tax bill account. Monthly escrow collection does not always mean the Tax Collector has posted the payment.
Check your tax bill and escrow statement
Look for the exact tax year, installment and parcel. Escrow collection on a mortgage statement is different from county payment posting.
Search the official payment portal
Confirm whether the bill still shows unpaid, partially paid, delinquent or paid.
Ask your mortgage servicer for proof
Ask for payment amount, date, parcel/account number, check number, processor and proof that it was sent to Mendocino County.
New homeowner reminder
After a property purchase, you may receive regular secured bills and supplemental bills. Review closing paperwork and county bills carefully so you do not miss a separate supplemental tax bill.
Mendocino County Tax Collector Video: What Was Found
No clearly relevant, official Mendocino County Treasurer-Tax Collector YouTube video for property tax payment was verified for this page. Because the available video results were not a clean official tax-payment tutorial, this article does not embed an unrelated video.
For now, use the official payment portal and county payment pages above. If Mendocino County later publishes a clear official property tax payment tutorial, it should be added here with an embedded YouTube iframe and a short step-by-step summary.
Official payment source: Mendocino County property taxes payment page.Mendocino County Tax Collector Map: 501 Low Gap Road, Ukiah
Use this map for directions to the Mendocino County Treasurer-Tax Collector at 501 Low Gap Road, Room 1060, Ukiah, CA 95482. Always verify current hours and service availability before visiting.
Bring if visiting
- Property tax bill or notice
- Parcel number or account number
- Photo ID if needed
- Payment method accepted by the office
- Payment confirmation if following up
Call before you drive
- Confirm office hours and county closures.
- Ask whether your payment type is accepted.
- Ask if your issue belongs to Tax Collector, Assessor or Auditor-Controller.
- Ask for payoff instructions if the bill is delinquent.
A Better Way to Use This Mendocino County Tax Collector Page
This page is built around what taxpayers actually need to do: pay the bill, find the office, call the right number, avoid penalty dates, understand supplemental and unsecured bills, and contact the correct office.
For homeowners
Search by parcel or address, confirm the secured installment, pay before the delinquent date and save proof.
For new buyers
Watch for supplemental tax bills after ownership change or new construction. These can arrive separately from the regular tax bill.
For business owners
Do not ignore unsecured tax bills. Mendocino County says unsecured bills are payable in one installment and delinquent if not paid by August 31.
Official Mendocino County Tax Collector Links
Use official Mendocino County resources for final payment, current balance, office availability, due dates, payment fees and delinquent-tax instructions.
More TaxCollectors.org Guides
Use these related guides to compare tax collector payment steps, office hours, online bill lookup, receipts and penalty rules across different local offices.
Mendocino County Tax Collector FAQ
These answers cover the main search intent behind Mendocino County Tax Collector, property tax payment, office hours, phone number, address, parcel search, due dates, penalties, supplemental bills and unsecured taxes.
Where is the Mendocino County Tax Collector office?
The Mendocino County Treasurer-Tax Collector office is listed at 501 Low Gap Road, Room 1060, Ukiah, CA 95482.
What is the Mendocino County Tax Collector phone number?
The main Treasurer-Tax Collector phone number is 707-234-6875. The listed fax number is 707-463-4166, and the listed email is ttc@mendocinocounty.org.
What are Mendocino County Tax Collector office hours?
The official directory lists office hours as Monday through Friday, 8:00 AM to 5:00 PM, and phone hours as Monday through Friday, 9:00 AM to 4:00 PM.
How do I pay Mendocino County property taxes online?
Use the official Mendocino County Tax Collector public access portal. You can search for property tax bills by Assessor Parcel Number, account number or street address, then pay online.
Can I pay Mendocino County property taxes by phone?
The Mendocino County property tax FAQ says payment may be made by phone by calling 855-857-3625 for secured property taxes.
When is the first installment of Mendocino County secured property taxes delinquent?
The first installment is due November 1 and becomes delinquent after December 10. A 10% penalty attaches after delinquency.
When is the second installment of Mendocino County secured property taxes delinquent?
The second installment is due February 1 and becomes delinquent after April 10. An additional 10% penalty and $20 cost charge attaches after delinquency.
When are Mendocino County unsecured property taxes due?
Mendocino County says unsecured tax bills are mailed in July each year, are payable in one installment, and become delinquent if not paid by August 31.
Who handles Mendocino County property value and exemption questions?
Questions about valuation of property and exemptions should be directed to the Assessor. The Tax Collector handles tax bills, payment, redemption and tax-defaulted property payment issues.
Is TaxCollectors.org the official Mendocino County website?
No. TaxCollectors.org is an independent guide. Always verify current payment, balance, office hours, penalties, due dates and instructions through official Mendocino County sources before taking action.
Best Way to Use This Mendocino County Tax Collector Guide
Start with the official Mendocino County public access portal if you need to search or pay a property tax bill. Match the parcel number, account number, situs address, tax year and bill type before paying. Save the confirmation immediately after payment.
Payment source: Mendocino County public access payment portal.Use the Treasurer-Tax Collector for payment, taxes paid, redemption, tax bill distribution and tax-defaulted property payment questions. Use the Assessor for valuation and exemptions, and the Auditor-Controller for tax levies, rates, district valuations and distribution questions.
Office-routing source: Mendocino County property tax information.Independent guide and official-source warning
This TaxCollectors.org page is an independent guide for people searching for Mendocino County Tax Collector, Mendocino County property tax payment, office hours, address, phone number, property tax lookup, secured tax due dates, unsecured tax bills, supplemental tax bills, receipts and penalties. It is not the official Mendocino County Treasurer-Tax Collector, Assessor, Auditor-Controller, California tax agency, mortgage servicer, legal adviser or tax adviser.
Before paying, mailing documents, visiting an office, relying on a deadline, disputing a value, applying for exemption relief, handling supplemental taxes or dealing with delinquent taxes, verify current details directly with official Mendocino County and California resources. Payment methods, convenience fees, office closures, due dates, penalties, account status and contact routing can change.