Search, Pay or Correct a County Tax Account
Use this guide to find a St. Louis County real-estate or personal-property bill, print a paid receipt, confirm the Collector of Revenue address, choose the correct payment route and avoid sending an assessment, vehicle or property-record problem to the wrong office.
The official county payment office is called the Collector of Revenue. It is separate from the St. Louis County Assessor, the independent City of St. Louis and St. Louis County, Minnesota.
Collector of Revenue.
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41 S. Central Ave., Clayton, MO 63105.
Paid or postmarked by December 31.
Choose the result you need
Use the Property Tax Inquiry portal for real estate and personal property.
Use the Assessor because the Collector cannot rewrite the assessment roll.
Request an exact payoff and accepted-funds instructions before paying.
Collector of Revenue, Tax Assessor or County Treasurer?
Searchers often use “St. Louis County Tax Collector” or “St. Louis County Treasurer,” but the county office that bills, collects and distributes property taxes is the Collector of Revenue. A generic Treasurer or Finance listing is not the first place to send a property-tax payment.
| Your question | Correct office | Why |
|---|---|---|
| How much do I owe or how do I pay? | Collector of Revenue | Bills, payments, receipts and delinquent collection. |
| Did my payment post? | Collector of Revenue | Maintains payment status and paid receipts. |
| Is the real-estate value correct? | County Assessor | Determines value and classification. |
| Why is the wrong vehicle or name listed? | County Assessor | Maintains personal-property declarations and accounts. |
| Where do I appeal value or classification? | Board of Equalization / Assessor | Assessment appeal process, not payment collection. |
| Who records a deed? | Recorder of Deeds | Recorded ownership documents are separate from the tax-payment account. |
Search and pay St. Louis County property taxes online
The official Property Tax Inquiry portal accepts a property number, owner name or address and can show real-estate and personal-property records. Start with the strongest identifier available.
How to fix an unsuccessful tax search
Compare online, phone, mail, counter and drop-box payments
| Method | Useful when | Fee / rule | Important caution |
|---|---|---|---|
| Online direct debit | You want a low-cost electronic route and can allow posting time. | County FAQ guidance describes checking/savings debit without an additional county fee. | Enter routing/account details carefully and keep the confirmation. |
| Online card | You need card convenience. | Third-party convenience fee shown before payment. | Read the final total; the fee is separate from tax. |
| Phone card payment | You need an assisted electronic route. | Third-party fee may apply. | Verify that the phone number came from an official county page. |
| In person | You need account help, certified handling or a counter record. | Accepted forms depend on whether tax is current, delinquent or in suit. | Do not arrive close to the walk-in cutoff. |
| The payment is current and the bill provides a remittance address. | Use the bill stub and accepted check/funds instructions. | Do not guess a mailing address or depend on last-day delivery. | |
| Drop box | County instructions allow the account/payment type. | Never deposit cash. | Certified lawsuit payments have special instructions. |
St. Louis County tax mailing address: use the address for your payment type
The Collector’s public office and general contact address is 41 South Central Avenue, Clayton, MO 63105. That does not mean every ordinary tax-payment envelope should be mailed without checking the current bill stub.
- Use the remittance address printed on the current bill or official payment instructions.
- Include the bill stub and write the property/account number on the payment.
- Keep a copy and proof of mailing.
- Do not mail cash.
The county’s official FAQ says the normal online option is not available for these payments.
- Use certified funds: cashier’s check or money order.
- Make payment payable to COR.
- Include both the personal-property account number and suit number.
- Mail to Collector of Revenue, 41 S. Central Ave., Clayton, MO 63105, use the authorized lobby drop box, or arrange Clayton service.
Collector of Revenue address, phone, email and public hours
Clayton, MO 63105
Phone: 314-615-5500
Current county listings used for this guide show Clayton public counter service Monday–Thursday, 8:00 a.m.–3:30 p.m., with no new walk-ins after 3:00 p.m. potentially applying.
Confirm the live location page before travelling.
December 31 deadline, delinquent balances and pre-payment
The county offers a pre-payment enrollment route that lets taxpayers deposit money toward future real-estate or personal-property tax before the finalized bill is issued.
After the bill is finalized, verify and pay any remaining balance.
The Collector may provide a personalized plan for some delinquent taxpayers. A plan is not automatic and may not stop every collection action, lawsuit, tax sale or licensing problem.
Request the exact terms from the Collector.
Print a personal-property tax receipt for Missouri plate renewal
Missouri vehicle owners commonly need proof that required personal-property taxes were paid. The county portal can show paid years and print a receipt after payment posts.
Missing bill, unposted payment, escrow or wrong-year problem
St. Louis County Assessor property search and office help
The Assessor values real estate and personal property, maintains assessment records and handles declarations, account details, many name/address corrections, vehicle records, waivers and assessment questions. The payment portal cannot correct those records.
3rd Floor
Clayton, MO 63105
Phone: 314-615-2555
Email: Assessor@stlouiscountymo.gov
In person: Monday–Friday, 8:00 a.m.–3:30 p.m.
Telephone: Monday–Friday, 8:30 a.m.–4:30 p.m.
Verify current hours before visiting.
| Need | Start with | What it answers |
|---|---|---|
| Amount due, paid status or receipt | Property Tax Inquiry | Collector bill and payment information. |
| Real-estate value or classification | County Assessor | Appraised/assessed value and property characteristics. |
| Owner/address or locator information | Assessor property records | Assessment-roll property details. |
| Vehicle/account declaration change | Assessor personal property | Property owned on January 1 and account record. |
| Deed copy or recorded document | Recorder of Deeds | Recorded ownership document; not current tax payoff. |
March 1 declaration, vehicle changes and tax waiver
Owners with an active individual, business or manufacturing personal-property account receive or access a declaration based on property owned or controlled on January 1. The County Assessor says declarations are due by March 1.
- Existing accounts may file online.
- Mail and in-person filing are also available.
- Add property owned on January 1 and remove property not owned on that date.
- Retain submission proof.
- Late or rejected filing can lead to penalties or an estimated assessment.
A declaration tells the Assessor what property should be assessed. It is not a tax payment and should not include a Collector payment.
Pay the later bill separately through the Collector.
Statement of non-assessment (tax waiver)
A waiver shows that the applicant did not owe St. Louis County personal-property tax for a specified year. It is commonly requested for vehicle titling or registration.
| Situation | Possible supporting document | Important location rule |
|---|---|---|
| New Missouri resident | Vehicle title, current out-of-state registration or Missouri title receipt. | Use the county where you lived on January 1 for the required tax year. |
| First-time vehicle owner | Completed title, Missouri title application or signed bill of sale. | Document must show ownership and sale details. |
| Leased vehicle | Lease agreement or out-of-state registration. | County assessment treatment can differ from an owned vehicle. |
| Active-duty military with non-Missouri home of record | Leave and Earnings Statement. | County guidance directs this document to the Missouri license-office route. |
Appeal a St. Louis County assessment to the Board of Equalization
Missouri law allows owners to appeal the Assessor’s opinion of value and/or classification for real or personal property. The Collector cannot decide an assessment appeal.
Senior Property Tax Freeze eligibility and document checklist
The St. Louis County Senior Property Tax Freeze is an application program, not an instant discount selected in the tax-payment checkout. Approval and the applicable base/freeze treatment appear through the county’s review and later tax-bill process.
- Age 62 or older by December 31 of the application year.
- Own the property or hold a legal/equitable interest.
- Primarily reside at the property.
- Claim only one primary residence for the program.
- Proof of identity and age.
- Property locator number.
- Proof of ownership, such as a deed.
- Relevant trust pages when the property is in a trust.
- Proof of primary residence.
Collector and Assessor map at 41 South Central Avenue
Open the official source that matches the task
Missouri guides found in the supplied URL sheet
The supplied URL workbook contains Boone County and Christian County Missouri pages. They were not inserted as article links because independent live-search verification did not return those URLs during this audit. This avoids sending users to an unverified or unpublished page.
St. Louis County Tax Collector and Assessor FAQs
How do I pay St. Louis County Missouri property taxes online?
Use the official St. Louis County Property Tax Inquiry portal at taxpayments.stlouiscountymo.gov. Search by property number, owner name or address, confirm the account, year and tax type, choose a payment method, save the confirmation and print the paid receipt after the payment posts.
What is the St. Louis County Collector of Revenue phone number and address?
The Collector phone number is 314-615-5500 and the public office address is 41 South Central Avenue, Clayton, Missouri 63105. Check the official office-locations page before visiting because hours, walk-in cutoffs and service availability can change.
Where should I mail a St. Louis County tax payment?
Use the remittance address and stub printed on the current county tax bill or the official instructions for that account. The Collector’s general office is 41 South Central Avenue, Clayton, MO 63105. Personal-property lawsuit payments have special certified-funds instructions and must include the account and suit number.
When are St. Louis County property taxes due?
County guidance says real-estate and personal-property taxes must be paid or postmarked by December 31 of the billing year to avoid delinquency. If the account is already late, request the current payoff instead of paying an old notice amount.
How do I print a personal-property tax receipt for license renewal?
Search the official tax portal, open the personal-property account and select the required paid year. If you paid online, allow the normal posting time—generally up to two business days—then print the official receipt.
What is the difference between the Collector of Revenue and County Assessor?
The Collector handles bills, payments, receipts, delinquency and collection. The Assessor handles real-estate value, classification, personal-property declarations, vehicle/account details, waivers and many owner or address record questions.
How do I search St. Louis County property records?
Use the Property Tax Inquiry portal for tax balance and receipt information. Use the official County Assessor resources for assessed value, classification, locator, ownership and property-record questions. A property record is not a current payoff quote.
When is the St. Louis County personal-property declaration due?
The County Assessor says individual and business personal-property declarations are due by March 1. The declaration reports property owned or controlled on January 1 and is separate from paying the later tax bill.
What was the 2026 St. Louis County assessment-appeal deadline?
The official Board of Equalization page accepted 2026 appeals from May 1 through July 13, 2026, the second Monday in July. That deadline has passed. Check the official appeal page for the next filing cycle or current remedies.
Who qualifies for the St. Louis County Senior Property Tax Freeze?
The county lists residents age 62 or older by December 31 who own or hold a legal or equitable interest in the property and primarily reside there. Only one primary residence may be claimed, and documentation and annual application or renewal rules apply.