SLO County Tax Collector: Pay Taxes, Office Hours & Address
If you are searching for the SLO County Tax Collector in 2026, this independent San Luis Obispo County guide helps you pay property taxes online, find the Tax Collector office address, check office hours, call the right phone number, understand eCheck and card fees, search by assessment number or mailing address, avoid late penalties, and know when to contact the Assessor instead of the Tax Collector.
The SLO County Tax Collector is part of the San Luis Obispo County Auditor-Controller-Treasurer-Tax Collector-Public Administrator office. Property taxes can be paid 24/7 online at services.slocountytax.org, by phone at 805-781-5831, by mail to County Tax Collector, 1055 Monterey Street, Room D-290, San Luis Obispo, CA 93408-1003, or in person at the Tax Collector’s Office at 1055 Monterey Street, Room D-290, San Luis Obispo, CA 93408. Office hours are listed Monday-Friday, 8 AM-5 PM, except holidays.
Official source: SLO County Pay Property Tax Bills and SLO County ACTTC Contact Us.What the SLO County Tax Collector Actually Handles
The San Luis Obispo County Tax Collector Division issues and collects secured property tax bills, unsecured property tax bills and supplemental property tax bills. The office also handles county business licenses, transient occupancy tax in unincorporated areas and certain cannabis business tax functions.
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Most people who search “slo county tax collector,” “san luis obispo county tax collector,” or “slocountytax pay property taxes” are trying to solve a payment problem. The Tax Collector is the correct office for tax bill payment, payment status, delinquent property tax payment, assessment-number payment lookup and mailed or in-person payment instructions.
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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Use Tax Collector for payment
Use this office for secured tax payment, unsecured tax payment, supplemental bill payment, delinquent tax routing, payment confirmation and payment-method questions.
Use Assessor for value
Use the Assessor for taxable value, exemptions, mailing-address changes, property information, ownership details and assessed-value disputes.
Use Clerk or auction pages for tax-defaulted sale issues
If a property becomes tax-defaulted and moves toward sale, read official county auction and delinquent-tax guidance before acting.
How to Pay SLO County Property Taxes Online
The fastest way to pay a San Luis Obispo County property tax bill is the official Taxes on the Web system at services.slocountytax.org. Search the bill first, verify the account, then choose the payment method.
Before paying, match the assessment number, assessee name, mailing address, property location, tax year and installment. SLO County bills can include secured annual taxes, supplemental bills, unsecured taxes, prior-year notes and special assessments, so do not rely only on the name or street address.
Official source: SLO County Taxes on the Web and Property Tax Information Search.Open the official Taxes on the Web portal
Use the county’s official online system, not a sponsored listing or unrelated bill-pay directory. The official portal provides property tax information 24/7 and allows online payments.
Open official Taxes on the Web portalSearch by assessment number, mailing address or assessee name
The information search page allows assessment-number search and mailing-address/name search. For the largest number of matches, search with fewer words, no symbols and last name first when using name search.
Open information searchChoose the correct bill and installment
Check whether you are paying the first installment, second installment, full annual bill, supplemental tax bill, unsecured bill or prior-year amount. The second installment cannot be paid before the first installment.
See due-date sectionReview eCheck or card fees
SLO County lists no additional fee for eCheck payments. Credit and debit card payments require a processing fee paid to the processor.
See payment fee detailsSave payment proof
After paying, keep the confirmation, bank record, assessment number, tax year, installment and amount. If paying by paper check, your canceled check serves as your receipt.
See receipt checklistSLO County Tax Collector Office Address, Mailing Address and Phone Number
The Tax Collector public counter is listed at the New Government Center in San Luis Obispo. For mailed payments, include the assessment number and payment stub, and do not mail cash.
In-person office
Tax Collector Office / New Government Center
Mail payment
Use for check or money order payment
When mailing a property tax payment, sign the check or money order, write the assessment number being paid, enclose the payment stub, and avoid paper clips, staples or tape. To avoid penalties, mail must be deposited before midnight on the delinquency date or received under the official rules shown on your bill.
Official source: SLO County Property Tax Payment Options.SLO County Tax Collector Office Hours and Best Time to Call
The New Government Center contact listing shows Tax Collector hours as Monday through Friday, 8 AM to 5 PM. Phone payment and customer service are also listed Monday-Friday, 8 AM-5 PM, except holidays.
Official source: SLO County ACTTC Contact Us and Pay Property Tax Bills.Best time to call
Call earlier in the day, especially close to December 10 or April 10. Have your assessment number ready before calling.
Before you visit
Confirm the tax year, installment, accepted payment method, holiday status and whether your question belongs to the Tax Collector or Assessor.
Deadline-day warning
Do not wait until late afternoon on a delinquency date. Online issues, parking, lines, bank errors or missing assessment numbers can create penalty risk.
SLO County Property Tax Payment Fees: eCheck, Card, Phone, Mail and In Person
SLO County lists no additional charge for payment by paper check or eCheck. Credit card and debit card payments require a processing fee paid to the payment processor.
| Payment method | Fee / rule | Practical taxpayer note |
|---|---|---|
| eCheck / electronic funds transfer | No additional transaction fee listed. | Have routing number and checking/savings account number ready. |
| Credit or debit card | 2.35% processing fee, $1.49 minimum. | Can be expensive on large tax bills; review final fee before submitting. |
| No processor fee for paper check or money order. | Must be postmarked/deposited by the legal deadline to avoid penalty. | |
| In person | Cash, check, cashier’s check, money order and major cards listed. | Card payments still have processing fees. |
| Phone | Phone payment through 805-781-5831; card fee applies if card is used. | Useful if you need human help with payment routing. |
Senior-friendly fee tip
For many taxpayers, eCheck is cheaper than a card payment because the official page lists no additional eCheck fee. A card fee may be worth it only if you need the convenience and understand the added cost.
SLO County Property Tax Due Dates: November 1, December 10, February 1 and April 10
Annual secured property tax bills can be paid in two installments. 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.
Official source: SLO County Secured Property Taxes.| Installment / bill type | Due / delinquent rule | What to do |
|---|---|---|
| 1st installment | Due November 1; delinquent if not paid by 5 PM December 10 or mailed before midnight on the delinquency date. | Pay before the rush; keep proof if mailing close to the deadline. |
| 2nd installment | Due February 1; delinquent if not paid by 5 PM April 10 or mailed before midnight on the delinquency date. | The second installment cannot be accepted before the first installment. |
| Weekend / holiday rule | If December 10 or April 10 falls on a weekend or holiday, taxes are not delinquent until 5 PM the next business day. | Still avoid waiting; online and mail timing problems can happen. |
| Unsecured tax bill | Unsecured bills are issued in July and become delinquent if not paid on or before August 31. | Do not confuse unsecured taxes with annual secured real estate taxes. |
Penalty warning
The official secured property tax page says a 10% penalty is added if the first installment is late. If the second installment is late, a 10% penalty plus a cost is added. If installments remain unpaid by June 30, the property becomes tax-defaulted and additional penalties and fees accrue.
How to Search SLO County Property Tax by Assessment Number, Name or Mailing Address
The SLO County tax search page supports assessment number search and mailing address/name search. This is the practical answer behind searches like “SLO County property tax lookup,” “SLO County tax bill search,” and “San Luis Obispo County tax collector pay bill.”
For assessment number search, enter the parcel’s nine-digit assessment number and exclude separators such as commas, spaces and hyphens. For mailing address/name search, the official search page explains that street name only or last name only returns the largest number of matches, and that users should not enter symbols such as %, &, or /.
Official source: SLO County Property Tax Information Search.Best search information
- Assessment number from the tax bill
- Mailing address
- Assessee name, last name first
- Street name only for broad search
- Tax year selected correctly
Before paying, verify
- Correct tax year
- Correct installment
- Assessee name
- Property location if shown
- Prior-year taxes unpaid note
SLO County Secured Property Taxes: Real Estate Bill Basics
Secured property taxes are the annual real estate taxes most homeowners mean when they search for the SLO County Tax Collector. Annual secured bills are mailed once a year by November 1.
The annual tax bill identifies the assessee of record, property location when available, assessed value, exemptions, amount due on the first and second installments, total taxes due, the general 1% levy, voter-approved taxes and special assessments. If the bill says “Prior Years Taxes Unpaid,” it means delinquent taxes from prior years are not included in the annual bill and must be handled separately.
Official source: SLO County Secured Property Taxes.Annual bill mailed by November 1
If you do not receive the annual bill by November 10, contact the Tax Collector and have the assessment number available.
Supplemental bills are separate
Supplemental tax bills may be mailed throughout the year after ownership changes or new construction. They do not follow the same dates as the annual bill.
Failure to receive bill does not remove penalty
The official page warns that failure to receive a tax bill does not permit the county to waive late-payment penalties.
SLO County Unsecured Property Taxes: Businesses, Boats, Aircraft and Personal Property
Unsecured property taxes are assessed against property not secured by real estate. Common examples include business equipment, boats and aircraft.
Unsecured tax bills are issued each year in July, payable in one installment, and become delinquent if not paid on or before August 31. If you sold a boat, aircraft or business asset after January 1, the January 1 lien-date ownership rule can still make you responsible for the bill unless official rules and documentation say otherwise.
Official source: SLO County Unsecured Property Taxes.Business equipment
Machinery, equipment, furniture, fixtures, computers, phones, desks, supplies and similar business property can be part of unsecured taxation.
Boats and aircraft
Aircraft, vessels, boats and personal watercraft located in the county as of the lien date can create unsecured tax bills.
Late unsecured bill
Delinquent unsecured taxes can involve liens, DMV holds, interest, penalties, short-term plans and collection action.
What if Your Mortgage Company Pays SLO County Property Taxes?
If your lender or mortgage company pays annual secured taxes from an impound account, the official secured tax page explains that lenders typically send payment during the last several days before the delinquency date.
Do not panic if a bill shows informational copy or if your lender has already deducted money from your impound account but the county record does not yet show paid. However, you should still verify posting before the deadline and contact your lender directly for payment policy or proof. Supplemental and revised bills may be mailed directly to you and may not be paid automatically by the lender.
Official source: SLO County Secured Property Taxes lender FAQ.Check your impound account
Look for a real tax disbursement, not only a monthly escrow collection amount.
Search SLO County Taxes on the Web
Confirm whether the installment has posted before the delinquency date.
Ask your lender about supplemental bills
Lenders usually request annual secured tax bills, but they may not know about supplemental or revised bills unless you arrange it.
How to Keep a SLO County Property Tax Receipt or Payment Proof
For online payments, save the confirmation and later verify the payment posted. For mailed check payments, the official secured property tax page says your canceled check serves as your receipt.
A receipt can matter for home sales, refinance, escrow disputes, rental-property records, trust administration, estate paperwork or lender questions. Keep proof until the tax year and installment clearly show as paid.
Official source: SLO County Secured Property Taxes payment FAQ.Receipt should show
- Assessment number
- Tax year
- Installment paid
- Amount paid
- Payment date
- Payment method
- Confirmation or check record
Keep extra proof
- Online confirmation screenshot
- Bank statement
- Canceled check image
- Mailing proof if sent close to deadline
- Lender payment proof if impounded
SLO County Delinquent Property Taxes, Tax-Defaulted Property and Prior-Year Taxes
If a SLO County bill is late, do not guess the payoff amount. The annual bill may show “Prior Years Taxes Unpaid,” and those prior-year taxes are not included in the current annual bill.
The official secured property tax page states that the first installment receives a 10% delinquency penalty if not paid by the deadline. The second installment receives a 10% penalty plus a cost if not paid by the deadline. If any installment is still unpaid by June 30, the property becomes tax-defaulted and additional penalties and fees accrue.
Official source: SLO County Secured Property Taxes delinquency FAQ.First installment late
Late first installments receive a 10% penalty if not paid by the December delinquency date.
Second installment late
Late second installments receive a 10% penalty plus a collection cost if not paid by the April delinquency date.
After June 30
If any installment remains unpaid by June 30, the property becomes tax-defaulted and additional penalties and fees accrue.
Senior-friendly late-payment warning
If you are helping a parent, spouse or neighbor with a late bill, call 805-781-5831 with the assessment number before paying. Ask for the exact amount due, accepted method and whether prior-year taxes are separate from the current annual bill.
SLO County Tax Collector vs Assessor: Which Office Should You Contact?
The Tax Collector collects property taxes after the bill is prepared. The Assessor determines taxable value and handles many property-record questions.
| Your question | Correct office | Why |
|---|---|---|
| I need to pay my tax bill. | Tax Collector | The Tax Collector receives payments and answers payment-status questions. |
| My assessed value seems wrong. | Assessor | The official FAQ says value questions should first be discussed with the Assessor’s Office. |
| I need to change my mailing address. | Assessor | The official secured tax FAQ says mailing address changes must be sent in writing to the Assessor. |
| My bill says prior years unpaid. | Tax Collector | Prior-year tax payment and delinquent-tax payoff should be verified with the Tax Collector. |
Common SLO County Tax Collector Search Problems Solved
Instead of listing keywords, this section explains the real user problems behind searches like “slo county tax collector,” “slo county property tax payment,” “slocountytax.org pay bill,” “slo county tax collector office hours,” and “san luis obispo property tax lookup.”
I need to pay online
Use the official Taxes on the Web system, search the assessment or address, verify the year and installment, then choose eCheck or card.
I need the office address
The office is at 1055 Monterey Street, Room D-290, San Luis Obispo, CA 93408. Mail payments to the same room with the proper payee and assessment number.
I need office hours
The contact page lists Monday-Friday, 8 AM-5 PM. Always check holidays and deadline-day service before visiting.
I need a receipt
Save online confirmation or use the canceled check as receipt. Later, verify payment posted to the assessment.
I need penalty help
Check whether the bill is first installment, second installment, supplemental, unsecured or prior-year tax. Penalty rules differ by bill type and date.
I need value or exemption help
Contact the Assessor, not the Tax Collector, for taxable value, assessment, exemptions, mailing address or ownership-record questions.
SLO County Property Tax Videos: Secured Bills and Ways to Pay
Relevant YouTube videos are embedded below for users who prefer a quick visual explanation of secured property tax bills and property tax payment methods. Always verify final payment instructions through official SLO County pages before submitting money.
Video source: Secured Property Taxes: What You Need to Know and Ways to Pay Your Property Taxes.Secured Property Taxes: What You Need to Know
Ways to Pay Your Property Taxes
SLO County Tax Collector Map: 1055 Monterey Street, Room D-290
Use this map for directions to the San Luis Obispo County Tax Collector office at 1055 Monterey Street, Room D-290, San Luis Obispo, CA 93408. Confirm current hours and holiday closures before driving.
Bring for tax payment help
- Property tax bill or assessment number
- Tax year and installment details
- Payment method
- Prior payment confirmation if following up
- Mortgage or impound proof if relevant
Call before visiting if
- The bill is delinquent or prior-year
- You need a payment plan or payoff figure
- You disagree with assessed value
- You have supplemental or unsecured taxes
- You are paying on the delinquency date
Official SLO County Tax Collector and Property Tax Links
This guide explains the process in plain language, but final payment, posted balances, penalty amounts, fee screens, holiday schedules and account status must be verified through official San Luis Obispo County sources.
Related TaxCollectors.org Guides
Use these related guides to compare property tax payment steps, office-hour checks, tax collector vs assessor routing, receipts and due-date planning across different local offices.
SLO County Tax Collector FAQ
These answers cover the main search intent behind SLO County Tax Collector, San Luis Obispo County property tax payment, office hours, address, fees, due dates, bill lookup, receipts and late penalties.
What is the SLO County Tax Collector office address?
The San Luis Obispo County Tax Collector office is located at 1055 Monterey Street, Room D-290, San Luis Obispo, CA 93408. Mailed payments may be sent to County Tax Collector, 1055 Monterey Street, Room D-290, San Luis Obispo, CA 93408-1003.
What is the SLO County Tax Collector phone number?
The Tax Collector phone number is 805-781-5831. The official contact page also lists fax number 805-781-5362.
What are SLO County Tax Collector office hours?
The New Government Center listing shows Monday through Friday, 8 AM to 5 PM. Property tax phone service is also listed Monday-Friday, 8 AM-5 PM, except holidays.
How do I pay SLO County property taxes online?
Use the official Taxes on the Web system at services.slocountytax.org. Search by assessment number, mailing address or assessee name, verify the correct bill and installment, then choose a payment method.
Is there a fee to pay SLO County property taxes online?
SLO County lists no additional fee for eCheck or electronic funds transfer. Credit and debit card payments require a 2.35% processing fee, with a $1.49 minimum processing charge.
When are SLO 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 either date falls on a weekend or holiday, taxes are not delinquent until 5 PM the next business day.
What happens if SLO County property taxes are late?
A late first installment receives a 10% delinquency penalty. A late second installment receives a 10% penalty plus a cost. If any installment remains unpaid by June 30, the property becomes tax-defaulted and additional penalties and fees accrue.
Can I search SLO County property tax by name or address?
Yes. The official information search page supports assessment number search and mailing address/name search. The page explains that street name only or last name only returns more matches, and users should avoid special symbols.
Who handles SLO County assessed value questions?
Assessed value questions should first be discussed with the SLO County Assessor’s Office. The Tax Collector handles payment and collection, not property value decisions.
Does the mortgage company pay supplemental tax bills?
Not always. The official secured tax FAQ explains that lenders typically request annual secured tax bills and may not know about supplemental or revised tax bills. Contact your lender directly if you want them to pay supplemental or revised bills.
When are SLO County unsecured taxes delinquent?
Unsecured property tax bills are issued in July, payable in one installment, and become delinquent if not paid on or before August 31. Weekend and holiday rules may move the deadline to the next business day.
Is TaxCollectors.org the official SLO County Tax Collector website?
No. TaxCollectors.org is an independent informational guide. Always verify final payment, official balance, deadlines, fees, office hours, holiday closures and delinquent-tax instructions directly with official SLO County sources.
Best Way to Use the SLO County Tax Collector Page
Start with the official SLO County Taxes on the Web portal if you need to search or pay a property tax bill. Verify the assessment number, tax year, installment, assessee name and any prior-year message before choosing a payment method.
Payment source: Official SLO County Taxes on the Web.Use eCheck if you want to avoid the listed card processing fee. Use the Tax Collector at 805-781-5831 for bill-specific payment questions. Use the Assessor for assessed value, mailing-address changes, exemptions, property records and assessment-related questions.
Office source: SLO County ACTTC Contact Us and SLO County Assessor Contact Us.Independent guide and official-source warning
This TaxCollectors.org page is an independent guide for people searching for SLO County Tax Collector, San Luis Obispo County property tax payment, SLO County tax bill lookup, office hours, address, phone number, payment fees, receipts, mortgage impound questions, unsecured taxes and delinquent property tax help. It is not the official San Luis Obispo County Tax Collector, Assessor, Auditor-Controller, Treasurer, Public Administrator, mortgage servicer, legal adviser or tax adviser.
Before paying, mailing documents, visiting an office, relying on a deadline, submitting a payment plan request, disputing value, handling delinquent taxes or using a third-party payment method, verify current details directly with official San Luis Obispo County and California sources. Fees, deadlines, office hours, payment availability, holiday closures, account status and penalty amounts can change.