Sour Lake, Texas sales tax rate: 8.25%
Last updated Checked monthly
The sales tax rate in Sour Lake, Texas is 8.25%. That’s the 6.25% state rate plus 2% in local taxes. It’s the highest combined rate Texas allows, and 361 other cities pay the same.
Calculated by the 
Sales Tax APIThe same engine Zamp customers use.Sour Lake combined rate
8.25%
- Texas state
- 6.25%
- Sour LakeCity
- 2%
Sour Lake sales tax calculator
Enter a price and what you’re selling.
- TexasState · 6.25%$6.25
- Sour Lake City (Hardin County)City · 2%$2.00
Charging this at checkout? Zamp calculates it on every order and files the returns.
Book a demoSour Lake sales tax rate breakdown
State and city taxes add up to 8.25%.
| Jurisdiction | Type | Rate |
|---|---|---|
| State of Texas | State | 6.25% |
| Sour Lake City (Hardin County) | City | 2% |
| Combined rate | 8.25% |
Rate history
- July 20238.25%
- July 20248.25%
- July 20258.25%
- July 20268.25%
- Today8.25%
No change since July 2023.
Sales tax near Sour Lake
Closest cities
- Lumberton14 mi8.25%
- Beaumont16 mi8.25%
- Hardin20 mi8.25%
- Pine Forest22 mi6.75%
- Old River-Winfree31 mi8.25%
- Dayton33 mi8.25%
- Bridge City35 mi8.25%
- West Orange39 mi8.25%
Elsewhere in Hardin County
- Lumberton8.25%
Charge the right rate in Sour Lake, on every order.
Zamp calculates tax at each customer’s address, then files and pays every Texas return for you, with a sales tax team you can call.
Sour Lake sales tax questions.
Still have questions? Call us at 1-866-438-9267 or email us at support@zamp.com.
What is the sales tax rate in Sour Lake, Texas?
The combined sales tax rate in Sour Lake is 8.25% as of November 2, 2026. It’s made up of 6.25% Texas state tax, 2% Sour Lake City (Hardin County).
Does the sales tax rate vary within Sour Lake?
Sour Lake has no special-district taxes, so most addresses in the city pay the same 8.25%: Texas’s 6.25% plus 2% city tax. This rate was calculated for the centre of Sour Lake; the calculator prices any exact address.
Is SaaS taxable in Sour Lake?
Partly. Texas taxes 80% of the price of software as a service, so the effective rate in Sour Lake is 6.6%.
Do online sellers have to collect sales tax in Sour Lake?
Yes, if they have nexus in Texas: more than $500,000 in Texas sales in the previous or current calendar year, or a physical presence in the state. They register with the Texas Comptroller of Public Accounts and charge the rate at the buyer’s address.
Sources. Texas Comptroller of Public Accounts · Zamp Sales Tax API, for the centre of Sour Lake. Rates are checked monthly and are for information, not tax advice.
Sales tax, off your plate.
Zamp registers you, calculates every order at the customer’s address, files every Texas return and handles notices, with a sales tax team you can call.
#1 rated support on G2
