Sales Tax in Watertown, Tennessee in 2025

We'll walk you through how the sales tax rate is determined for Watertown and address some common questions you may have. We'll also cover how to collect, audit, and remit sales tax in Watertown.

Plus, we’ll share the best solution that will ensure you are always compliant across the entire sales tax lifecycle.

Disclaimer: Our sales tax data is updated on a quarterly basis.

Watertown Sales Tax Rate 2025

Watertown is located in Wilson County in Tennessee, United States, and has a sales tax rate of 9.75%. This includes local and state sales tax rates.

Here is the breakdown of the Watertown's sales tax:

Tax Jurisdiction	Sales Tax Rate
Tennessee State Tax	7.00%
Wilson County Tax	2.75%
Combined Rate	9.75%

This rate applies to the following zip codes in Watertown:

37184

How Does the Watertown Sales Tax Compare to the Rest of Tennessee?

Watertown’s 9.75% sales tax rate is the highest rate you can find in Tennessee. It is 1.25% higher than Tennessee’s lowest rate, which is 8.50% and can be found in Mountain, among other places.

To give you a better idea, here’s a comparison of Watertown sales tax rates with a few other cities in Tennessee:

City	Sales Tax Rates
Mountain	8.50%
Oakdale	9.00%
Garland	9.25%
Rockwood	9.50%
Watertown	9.75%

You can also compare the sales tax rate of Watertown against the Tennessee cities closest in population size:

• Crump's sales tax rate is 9.75%
• Norris's sales tax rate is 9.75%

What Creates Sales Tax Nexus in Watertown?

 Watertown follows the Tennessee state tax law and doesn’t have its own separate nexus rules.

Read More: Check out this detailed guide on Sales Tax in Tennessee.

Tennessee sales tax nexus rules are:

• Economic Nexus: Out-of-state businesses that have sold more than $100,000 in the past 12 months.

• Physical Location: Businesses with stores, offices, warehouses, or inventory. Using company-owned trucks or contract carriers can also create a sales tax nexus. 

• Employee Location: Businesses with employees, independent contractors, and agents in the state.

• Tangible Personal Property: Businesses that rent and lease tangible personal property. Repairing, installing, and assembling tangible personal property, even if you use an agent or independent contractor, also creates a sales tax nexus in Tennessee.

• Events: Businesses participating in promotional activities, including trade shows. Vendors who only attend these special events occasionally and haven’t registered for sales tax in Tennessee can apply for a Special Event Vendor Registration.

What Products Are Exempt from Watertown Sales Tax?

Watertown doesn’t have any special exemptions. All sales tax exemptions are granted by the Tennessee sales tax law.

Some tax-exempt items in Tennessee are:

• Drugs prescribed by a licensed physician. It also includes medical equipment, like nebulizers, prescribed by a licensed physician and for home use.
• Broadband equipment purchased by an internet service provider.
• Industry machinery and supplies purchased by a manufacturer.
• Health and fitness clubs.
• Rental of films, transcriptions, and recordings to radio stations and television stations that have the certificate from the Federal Communications Commission.
• Gas, electricity, fuel, oil, coal, and other energy fuels sold to the consumer for residential use.
• Textbooks, workbooks, newspapers, and come periodicals.
• Specified digital goods that are not taxable in their tangible form (electronically transferred digital audio-visual works).

Additionally, Tennessee state tax law offers an entity-based tax exemption where some purchasers, such as qualified farmers and manufacturers, can buy certain items tax-free or at a discounted rate. 

All products bought by government entities and non-profit organizations are also tax-exempt.

Who Needs a Sales Permit in Watertown?

Anybody who sells, rents, or leases a tangible personal property, even if it’s a tax-exempt product, should apply for a certificate of registration.

Businesses should register their business if they generate over $400 a month from selling tangible personal property or exceed $100 a month in sales of taxable services. This also applies if you’re a remote seller making more than $100,000 in the state. 

Meanwhile, wholesalers, manufacturers, and retailers will get a Tennessee Certificate of Resale upon registering their business. 

Sales tax permits are usually granted by the state. You can register for your Tennessee seller’s permit at TNTAP.

How to Collect Sales Tax in Watertown

According to Tennessee sales tax law, here’s how you can collect sales tax on:

• Intrastate Tennessee sales: Tennessee uses origin-based sales tax sourcing for in-state sales. This means that sales tax is charged at the rate of the location from which the order originates.

So, if your online store’s headquarters is in Watertown, Tennessee, and you sell to a buyer in Crump, Tennessee, then you’d charge the sales tax rate of Watertown, where the sale started.

• Interstate Tennessee sales: For interstate sales, Tennessee is a destination-based sales tax sourcing state. 

So, if you are located in South Dakota but make a sale to a buyer in Watertown, Tennessee, you would charge the sales tax rate at your buyer’s location in Watertown, Tennessee.

However, this doesn’t apply to digital products, which are subject to the 7.00% Tennessee state rate and a local rate across the state.

Learn more about origin-based and destination-based sales tax sourcing here.

How to File and Pay Sales Tax in Watertown

There are multiple options to file and pay Watertown sales tax returns:

• File and pay online: At the TN TaxPayer Access Point (TNTAP).
• File and pay by mail: File out Form SLS-450 State and Local Sales Tax Return and mail it in.
• Or, automate your sales tax filing with Zamp. You can stay compliant across the United States — all thanks to our white-glove onboarding, precise calculations, and easy registrations!