Search, Pay or Fix a Monterey County Tax Bill
Use this Monterey County Tax Collector guide before you open the payment portal, mail a check, call the Salinas office or try to fix a bill that looks wrong.
It explains FEE vs ASMT number, current payment fees, the Whittier mailing address, postmark risk, supplemental bills, unsecured taxes, mobile-home clearance and when the Assessor—not the Tax Collector—must handle the issue.
Fast answer: the official Monterey County Tax Collector is the County of Monterey Treasurer-Tax Collector. The public office is at 168 W. Alisal Street, 1st Floor, Salinas, CA 93901. The Tax Division phone is 831-755-5057, and the public tax email is taxcollector@countyofmonterey.gov.
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 |
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Best first step: search the official property-tax portal with the 12-digit FEE number if you want to see all bills tied to the parcel. Search with the ASMT number when you need one exact assessment or are paying current-year taxes by phone.
Local mistake to avoid: the office is in Salinas, but property-tax payments by mail go to the Whittier P.O. Box. General correspondence still uses the Salinas P.O. Box.
Official Source and Form Audit: What This Page Uses
Most Monterey County tax searches are simple only if the taxpayer already knows the right number, bill type and payment route. The official county pages answer those pieces across several locations, so this guide turns them into one task order.
Payment source
The payment-options page controls online, phone, in-person, mail, service-fee, postmark and large-payment instructions.
Form source
The key payment form is the Parcel Payment Entry Form for aggregate tax payments of $50,000 or more by EFT.
Clearance source
Manufactured-home transfers need the county’s mobile-home tax clearance instructions, not just the normal property-tax portal.
What the Monterey County Treasurer-Tax Collector Actually Handles
The Tax Division oversees billing, collection, reporting and accounting for secured and unsecured property tax collection. The same office also has revenue and treasury functions, but a property owner usually needs the Tax Division.
Use the Tax Collector for
- property-tax bill lookup and copies;
- online, phone, mail or counter payment questions;
- current-year and prior-year balances;
- payment posting, receipts and duplicate-payment concerns;
- postmark and deadline questions;
- redemption and tax-default status;
- manufactured home tax clearance;
- unsecured tax collection questions.
Do not use the Tax Collector to change
- assessed value;
- ownership records;
- homeowner or other exemption eligibility;
- parcel characteristics;
- new-construction reassessment;
- tax-rate calculations;
- direct charges from districts shown on the bill.
How to Pay Monterey County Property Tax Online
The online portal is the fastest route for most owners because it can show bills and let you save a confirmation number. Start from the county-linked portal, not from a search ad or a generic payment directory.
Open the official payment portal
Use the Monterey County property-tax portal at common3.mptsweb.com. Confirm it identifies Monterey County before entering payment information.
Select the current roll year
Older roll years may be historical. Use the current roll year when checking what is due now.
Search by FEE number first when possible
The county recommends FEE for online payment because it can show all bills tied to the property, including supplemental and defaulted years.
Use ASMT for one exact bill
The ASMT number opens a specific assessment. It is also the number needed for phone payments.
Check every returned bill
Compare fiscal year, installment, parcel, assessment number, supplemental status, defaulted status and amount due.
Review the fee before checkout
Card payments and eCheck payments use vendor fees. The checkout page is the final fee check.
Save proof and recheck posting
Keep the receipt, confirmation number, amount and payment date. Recheck the bill before paying again.
Monterey County Tax Collector Property Search: Which Field Should You Use?
Most failed searches happen because the taxpayer uses the wrong number or searches the wrong roll year. Use the printed tax bill when you have it. If you do not, use the Assessor parcel tools to identify the parcel number, then return to the payment portal.
| Search route | Best when | What it can show | Common mistake |
|---|---|---|---|
| FEE Parcel | You want the broader parcel summary. | Current, supplemental and defaulted bills tied to the property. | Using ASMT and assuming no other bill exists. |
| Assessment / ASMT | You need one exact assessment. | A specific bill or assessment record. | Expecting one ASMT search to reveal every parcel bill. |
| Roll year | You need current vs historical payment status. | The selected tax-year records. | Viewing historical data and treating it as current balance. |
| Assessor property inquiry | You need parcel, map, value or exemption context. | Ownership, parcel status, Tax Rate Area, assessed values, exemptions and property characteristics where available. | Using Assessor data as proof that a tax payment posted. |
FEE Number vs ASMT Number: The Monterey County Difference
Use FEE for the full parcel view
Monterey County recommends the FEE number for online payments because it can bring up all tax bills associated with the property, including supplemental bills and defaulted tax years.
Use ASMT for one bill
The ASMT number brings up a specific bill and is needed for phone payment of current-year taxes.
Portal length matters
If a search fails, check whether the number you entered is too short, too long or copied with extra spaces.
No Monterey County Tax Record Found? Fix It Before Paying
Copy the number again from the bill. Remove spaces or marks that are not part of the number.
You may have searched by ASMT. Search again by FEE to check for supplemental or defaulted bills tied to the parcel.
Check the roll year. Historical roll data is not the same as current payment information.
Use the Assessor parcel inquiry for secured property or call the Tax Division for help finding the right account.
Stop before payment and identify whether the issue is value, tax rate, direct assessment or collection balance.
Do not immediately pay again. Gather confirmation number, amount, payment date, parcel number and installment before calling.
Monterey County Tax Collector Payment Options, Fees and Limits
Different payment routes use different numbers, fee rules and posting risks. Pick the route that matches the bill type and urgency.
| Method | Accepted payment | Published fee or rule | Use when |
|---|---|---|---|
| Online | Visa, Mastercard, Discover, American Express, checking or savings e-debit. | Card: 2.49% with $1.95 minimum. eCheck: $0.25. | You have the FEE number and want confirmation without mailing delay. |
| Phone | Card or electronic checking/savings debit through ACI. | Vendor fees apply. English and Spanish service are listed. | You are paying current-year taxes and have the 12-digit ASMT number. |
| Cashier counter | Cash, check, cashier’s check and money order. | Credit and debit cards are not accepted at cashier windows. | You want in-person service and a direct county counter payment. |
| Lobby computer | Online card or eCheck checkout. | Online vendor fees still apply. | You are at the office but still want to pay electronically. |
| Lobby drop box | Check, cashier’s check or money order. | No online vendor fee. | You do not need counter help and have the correct bill details. |
| Check, cashier’s check or money order. | Do not mail cash. | You can protect the deadline with a valid USPS postmark. |
Monterey County Tax Collector Mailing Address: Use the Right P.O. Box
Property tax payments
Monterey County Treasurer-Tax CollectorP.O. Box 6005
Whittier, CA 90607
Use this for property-tax checks, cashier’s checks and money orders.
General correspondence
Monterey County Treasurer-Tax Collector’s OfficeP.O. Box 891
Salinas, CA 93902-0891
Use this for non-payment correspondence unless a county form gives a different instruction.
- Make checks payable to Monterey County Treasurer-Tax Collector.
- Include the 12-digit ASMT number when mailing a payment.
- Mail only check, cashier’s check or money order.
- Do not mail cash.
- Keep a copy of the bill stub, check and mailing proof.
- Near a deadline, request a manual USPS counter postmark.
Paying $50,000 or More? Monterey County Requires Aggregate EFT
Large property owners, agents and processors should not treat a six-figure batch like a normal mailed check. Monterey County states that aggregate tax payments of $50,000 or more must be made by electronic fund transfer.
Ask for or confirm your customer number
The county instructions refer to a 5-digit customer number with leading zeros. Call 831-755-5057 if you do not know it.
Use the Parcel Payment Entry Form
Open the county fillable form from the payment-options page and use its Fillable Form and Instructions tabs.
Enter each assessment line
Include assessment number, payment amount and installment number for every parcel in the payment batch.
Email the completed file
The county lists TAXCOLLECTOR.EFT.ACH@countyofmonterey.gov for returning the saved parcel-entry form.
Do not transmit blind
Confirm instructions and timing before sending a large transfer, especially close to a delinquency cutoff.
Monterey County Tax Collector Phone Number, Address and Hours
Public office
Monterey County Treasurer-Tax Collector168 W. Alisal Street, 1st Floor
Salinas, CA 93901
Hours
Office: Monday-Friday, 8:00 a.m.-5:00 p.m., excluding county holidays.
Tax Division phone staff: 9:00 a.m.-5:00 p.m.
Monterey County Secured Property Tax Due Dates and Penalties
California secured property taxes have due dates and delinquency cutoffs. Do not confuse “due” with “late after.”
| Installment | Due date | Delinquent after | Penalty if late |
|---|---|---|---|
| First installment | November 1 | 5:00 p.m. on December 10 unless a weekend/legal holiday moves the cutoff. | 10% of the first installment. |
| Second installment | February 1 | 5:00 p.m. on April 10 unless a weekend/legal holiday moves the cutoff. | 10% of the second installment plus $20 cost. |
| After June 30 | Fiscal year end. | Unpaid secured taxes become tax-defaulted. | $15 redemption fee plus 1.5% monthly interest and possible added costs. |
Secured, Supplemental or Unsecured Tax? Identify the Bill First
One Monterey County property may have more than one tax bill. A regular secured bill, supplemental bill and defaulted prior-year bill can exist at the same time.
| Bill type | Common reason | Timing rule | What to do next |
|---|---|---|---|
| Secured property tax | Land, home, timeshare, business real property, certain manufactured homes, utility or mineral interests. | Annual bill mailed in mid-October; regular first and second installments. | Check both installments and current roll year. |
| Supplemental property tax | Ownership change or completed new construction. | Delinquency dates depend on the month the supplemental bill was mailed. | Do not assume the mortgage lender paid it. |
| Unsecured property tax | Business personal property, aircraft, vessels and other property not secured like land. | Use the date printed on the unsecured bill. | Call for help locating unsecured ASMT numbers or enforcement questions. |
| Defaulted / redemption | Secured taxes remained unpaid after the fiscal year ended. | Redemption fees and 1.5% monthly interest can apply. | Use a current payoff, not an old annual bill. |
Prior-Year Delinquent Taxes, Redemption and Tax-Default Risk
Monterey County calls prior-year secured delinquent taxes “redemptions” or defaulted tax roll items. This is different from being a few days late on the current installment.
June 30 default point
Current-year secured taxes unpaid at the end of the fiscal year become tax-defaulted.
Monthly interest
The county states that after default, 1.5% interest begins accruing monthly, with a $15 redemption fee and possible added costs.
Power to sell
Real property remaining tax-defaulted for five or more years can become subject to the Tax Collector’s power to sell.
Difficulty Paying Monterey County Property Taxes?
Monterey County lists practical options for taxpayers who need to plan ahead instead of waiting until a delinquency date.
State Property Tax Postponement
The county points to California’s Property Tax Postponement program for eligible homeowners who are at least 62, blind or disabled, occupy the home as a primary residence, meet income limits and meet equity rules.
Mortgage impound
Some taxpayers ask their lender to include annual property taxes inside monthly mortgage payments and remit them at the county deadlines.
Monthly savings plan
The county suggests using the current bill, adding about 3% for planning, and dividing the amount by 12 or another deposit schedule.
Mobile Home and Manufactured Home Tax Clearance
A manufactured home tax clearance certificate is a special Tax Collector task. It is commonly needed before transfer of ownership through California HCD.
How to request it
Complete the Mobile Home Tax Clearance Application and submit required documents by mail, email or in person. Incomplete applications are returned without processing.
Reissue fee
The county says the initial certificate has no fee, but reissuing a previously issued or expired certificate requires a $48 fee.
Validity period
The certificate is valid for no more than 60 days from issuance and not beyond December 31 of the current calendar year.
Tax Collector, Assessor, Auditor or Appeals Board? Call the Right Office
Many Monterey County taxpayers lose time because they call the payment office for a value, rate or appeal problem. Use the route below before calling.
| Your issue | Correct office | Why | Have this ready |
|---|---|---|---|
| Balance, payment, receipt or delinquency | Treasurer-Tax Collector | Maintains the collection account and posts payments. | FEE number, ASMT number, roll year and installment. |
| Assessed value or exemption | Assessor | Establishes value, parcel records and exemptions. | Parcel number, property address and value notice. |
| Tax-rate calculation | Auditor-Controller or listed agency | Applies rates and direct charges to the assessed value. | Tax Rate Area, line item and charge label. |
| Formal assessment appeal | Assessment Appeals Board / Clerk of the Board | Receives applications for reduction in assessment. | Evidence, appeal deadline and parcel records. |
Monterey County Tax Collector Map and Salinas Arrival Tips
The public office is in downtown Salinas at the County Government Center area on West Alisal Street. If you are coming from Monterey, Seaside, Marina, Carmel, Castroville, South County, Prunedale or Big Sur, plan around weekday office hours and parking time before a deadline.
Search “168 W. Alisal Street, Salinas, CA 93901” instead of only “Monterey tax collector,” because the office is in Salinas, not the City of Monterey.
Bring the tax bill, FEE number, ASMT number, checkbook, ID if needed, and proof of payment if a payment is missing.
Credit and debit cards are not accepted at cashier windows. Lobby computers route you through online checkout with vendor fees.
Nearby California Treasurer-Tax Collector Guides
Use these internal guides only when the parcel belongs to that county. This prevents wrong-office payments and helps compare California county tax workflows.
Official Monterey County Links to Use When You Are Ready to Act
Use this article for planning and troubleshooting. Use the official pages below for final account lookup, payment, current balance, forms, deadlines and account-specific rules.
Monterey County Tax Collector FAQs
What is the official Monterey County Tax Collector website?
The official office is the County of Monterey Treasurer-Tax Collector. Use the county government website and the county-linked property-tax portal at common3.mptsweb.com for bill search and payment.
How do I pay Monterey County property taxes online?
Open the official Monterey County property-tax portal, select the current roll year, search by FEE parcel or ASMT number, verify the parcel and installment, review the service fee and save the confirmation number.
Should I use the FEE number or ASMT number?
Use the FEE number for the broader property summary, including current, supplemental and defaulted bills tied to the property. Use the ASMT number when you need one specific assessment or when paying current-year taxes by phone.
What is the Monterey County Tax Collector phone number?
The Tax Division phone number is 831-755-5057. For phone payments, Monterey County also lists ACI Payments at 1-800-491-8003 and says callers may use the county number and choose Option 3.
What are Monterey County Tax Collector office hours?
The public office is open Monday through Friday from 8:00 a.m. to 5:00 p.m., excluding county holidays. Tax Division telephone staff are listed from 9:00 a.m. to 5:00 p.m.
Where is the Monterey County Tax Collector office?
The office is at 168 W. Alisal Street, 1st Floor, Salinas, CA 93901.
Where do I mail Monterey County property-tax payments?
Mail property-tax payments to Monterey County Treasurer-Tax Collector, P.O. Box 6005, Whittier, CA 90607. General correspondence uses P.O. Box 891, Salinas, CA 93902-0891.
What are Monterey County online payment fees?
The county lists a 2.49% vendor service fee for debit and credit card payments with a $1.95 minimum, and a $0.25 fee for eCheck payments. These fees are assessed by the vendor, not the county.
When are Monterey County secured property taxes due?
The first installment is due November 1 and becomes delinquent after December 10. The second installment is due February 1 and becomes delinquent after April 10. If the delinquency date falls on a weekend or legal holiday, the cutoff extends to 5:00 p.m. the next business day.
Can I make a partial secured-property-tax payment?
No. Monterey County says secured property tax installments must be paid in full. A partial payment may be returned or briefly held while the office requests the remaining amount, and penalties can still apply.
Who handles a wrong value, ownership issue or exemption?
The Assessor handles assessed value, ownership, exemptions and parcel characteristics. The Treasurer-Tax Collector handles billing, collection, payments, receipts, penalties and redemption.
Is TaxCollectors.org the official Monterey County Tax Collector website?
No. TaxCollectors.org is an independent guide. Always complete payments, forms, balance checks and account-specific decisions through the County of Monterey Treasurer-Tax Collector, Assessor, Auditor-Controller or other official source.
Final Check Before You Submit or Mail Money
- You are paying Monterey County, California, not the City of Monterey or another county.
- The current roll year is selected when paying a current bill.
- The FEE search was used if you need to catch all parcel-linked bills.
- The ASMT number and installment match the bill you intend to pay.
- The bill type is understood: secured, supplemental, unsecured or defaulted.
- The vendor fee is understood before online or phone checkout.
- The Whittier P.O. Box is used for mailed property-tax payments.
- A manual USPS counter postmark is requested near a deadline.
- You saved a confirmation number, receipt, check copy or postmark proof.
- Assessment, ownership and exemption questions are routed to the Assessor.