# St. Louis County, MO Sales Tax Rate (2026)

Canonical: https://trykintsugi.com/sales-tax-guides/usa/missouri/st-louis-county
Published: 2026-09-01

The most common combined sales tax rate in St. Louis County, MO is 8.988% as of September 2026: 4.225% state, 2.263% county, 1.25% city and 1.25% special district. Rates across the county's 50 ZIP codes range from 7.738% to 12.238%, depending on the city and special districts. Missouri's state rate is 4.225%, so local taxes add 4.763% here.

| Component | Rate |
| --- | --- |
| State | 4.225% |
| County | 2.263% |
| City | 1.25% |
| Special district | 1.25% |
| **Combined** | **8.988%** |

Source: Kintsugi's rate table, as of September 2026. Official rates: [Missouri DOR — Sales and Use Tax](https://dor.mo.gov/taxation/business/tax-types/sales-use/).

## Sales tax rates by place in St. Louis County

| Place | Combined rate | ZIP codes |
| --- | --- | --- |
| Saint Louis | 10.488% | 28 |
| Ballwin | 8.988% | 4 |
| Florissant | 9.988% | 4 |
| Chesterfield | 8.988% | 3 |
| Fenton | 8.238% | 2 |
| Bridgeton | 10.988% | 1 |
| Earth City | 8.988% | 1 |
| Eureka | 10.238% | 1 |
| Glencoe | 8.238% | 1 |
| Grover | 9.238% | 1 |
| Hazelwood | 11.988% | 1 |
| Maryland Heights | 9.238% | 1 |
| Saint Ann | 12.238% | 1 |
| Valley Park | 9.738% | 1 |

## St. Louis County sales tax rates by ZIP code

| ZIP | Combined rate |
| --- | --- |
| 63005 | 10.113% |
| 63006 | 8.988% |
| 63011 | 10.988% |
| 63017 | 9.738% |
| 63021 | 9.488% |
| 63022 | 8.988% |
| 63024 | 8.988% |
| 63025 | 10.238% |
| 63026 | 8.738% |
| 63031 | 9.988% |
| 63032 | 8.988% |
| 63033 | 9.988% |
| 63034 | 7.738% |
| 63038 | 8.238% |
| 63040 | 9.238% |
| 63042 | 11.988% |
| 63043 | 9.238% |
| 63044 | 10.988% |
| 63045 | 8.988% |
| 63074 | 12.238% |
| 63088 | 9.738% |
| 63099 | 8.238% |
| 63105 | 10.488% |
| 63114 | 9.988% |
| 63117 | 11.488% |
| 63119 | 11.238% |
| 63121 | 10.488% |
| 63122 | 10.738% |
| 63123 | 9.679% |
| 63124 | 10.488% |
| 63125 | 9.679% |
| 63126 | 10.488% |
| 63127 | 9.988% |
| 63128 | 9.679% |
| 63129 | 8.238% |
| 63130 | 11.679% |
| 63131 | 11.238% |
| 63132 | 10.238% |
| 63133 | 10.238% |
| 63134 | 11.488% |
| 63135 | 10.238% |
| 63136 | 10.738% |
| 63137 | 9.679% |
| 63138 | 10.679% |
| 63140 | 9.738% |
| 63141 | 9.988% |
| 63143 | 10.488% |
| 63144 | 10.738% |
| 63145 | 8.988% |
| 63146 | 10.738% |

## Selling into St. Louis County: Missouri rules

- **What's taxable:** At the state level, SaaS is exempt, clothing is taxable, groceries are taxable and digital goods are exempt.
- **Economic nexus:** Missouri economic nexus applies once your gross receipts from taxable sales into the state exceed $100,000 in the preceding 12 months, including marketplace sales. There is no transaction-count trigger.
- **Filing:** Missouri assigns monthly, quarterly, or annual filing based on tax volume. Returns and payments are due the last day of the month following the reporting period for monthly and quarterly filers; annual returns are due January 31.

More in the [Missouri sales tax guide](/sales-tax-guides/usa/missouri).

## Frequently asked questions

### What is the sales tax rate in St. Louis County, MO?

The most common combined sales tax rate in St. Louis County, MO is 8.988% as of September 2026: 4.225% state, 2.263% county, 1.25% city and 1.25% special district. Rates across the county's 50 ZIP codes range from 7.738% to 12.238%, depending on the city and special districts. Missouri's state rate is 4.225%, so local taxes add 4.763% here.

### Why do sales tax rates differ within St. Louis County?

Local sales taxes follow city and district boundaries, and ZIP codes don't. Of the 50 ZIP codes in St. Louis County, 6 carry 8.988% and the rest range from 7.738% to 12.238%, usually because the ZIP lies in a city or special taxing district with its own tax. Always rate a sale by the delivery address, not the county or ZIP alone.

### Which places in St. Louis County have their own sales tax?

13 of the 14 places in St. Louis County levy a city sales tax on top of the state and county rates. The highest combined rates are in Saint Ann (12.238%), Hazelwood (11.988%), Bridgeton (10.988%), Saint Louis (10.488%) and Eureka (10.238%).

### Do I need to collect St. Louis County sales tax if I'm based out of state?

Only once you have nexus in Missouri. Missouri economic nexus applies once your gross receipts from taxable sales into the state exceed $100,000 in the preceding 12 months, including marketplace sales. There is no transaction-count trigger. After you register, you collect Missouri sales tax on taxable sales delivered to St. Louis County.

### What does Missouri tax?

At the state level, SaaS is exempt, clothing is taxable, groceries are taxable and digital goods are exempt. The Missouri sales tax guide covers exemptions and local exceptions.