Sales Tax in Key West, Florida in 2025

The combined sales tax rate for Key West, Florida is 7.50%. Your total sales tax rate combines the Florida state tax (6.00%) and the Monroe County sales tax (1.50%). Key West doesn’t levy a city sales tax, nor a special tax.

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

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.

Key West Sales Tax Rate 2025

Key West is located in Monroe County in Florida, United States, and has a sales tax rate of 7.50%. This includes local and state sales tax rates.

Here is the breakdown of the Key West's sales tax:

Tax Jurisdiction	Sales Tax Rate
Florida State Tax	6.00%
Monroe County Tax	1.50%
Combined Rate	7.50%

This rate applies to the following zip codes in Key West:

33040

How Does the Key West Sales Tax Compare to the Rest of Florida?

Key West’s 7.50% sales tax rate is the highest rate you can find in Florida. It is 1.50% higher than Florida’s lowest rate, which is 6.00% and can be found in Crystal River, among other places.

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

City	Sales Tax Rates
Crystal River	6.00%
Holly Hill	6.50%
Flagler Beach	6.50%-7.00%
Trenton	7.00%
Key West	7.50%

You can also compare the sales tax rate of Key West against the Florida cities closest in population size:

• Sebastian's sales tax rate is 7.00%
• Tarpon Springs's sales tax rate is 7.00%

What Creates Sales Tax Nexus in Key West?

Key West follows the Florida state sales tax law. There are no separate nexus rules specifically for Key West other than the Florida state tax law.

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

Florida state sales tax nexus rules include:

• Economic Nexus: Businesses that sell any taxable items. 
• Physical Location: Businesses with physical establishments, such as a warehouse, office, or distribution in the state.
• Employee Location: Businesses with employees and other representatives in Florida.
• Affiliate Nexus: Out-of-state businesses making remote sales of $100,000 or more in the previous calendar year.
• Trade Shows: Businesses that sell taxable goods and services in trade shows.
• Tangible Personal Property: Businesses that sell any taxable tangible personal property.  

What Products Are Exempt from Key West Sales Tax?

Florida sales tax law grants certain tax exemptions, which apply to Key West as well. (There are no separate exemptions for Key West taxpayers outside of these.) 

• Common household medicines like allergy relief products and antiseptics.
• Chemical compounds and test kits like allergy test kits and blood pressure kits.
• Cosmetics and toilet articles like suntan lotion, makeup, and body lotion.
• Optical goods like prescription glasses and contact lenses.
• General groceries like baking goods and cereal products.
• Infant supplies like baby formulas and teething powder.
• Seeds and fertilizers like herbicides, pesticides, and fungicides.

Who Needs a Sales Tax Permit in Key West?

A sales tax permit or seller's permit is typically issued by states in the United States. You can apply for one at the Florida Department of Revenue website or use a DR-1 form. A seller's permit allows you to collect and remit sales tax on your products.

You need one if you:

• Sell and manufacture any taxable items in Key West or anywhere in Florida.
• Repair or alter tangible personal property.
• Rent or lease real and personal property (commercial office space or hotels).
• Charges for admission to any place of amusement, sport, or recreation.
• Operate private membership clubs.
• Sell Imported goods or use them in the business.
• Sell service warranty contracts.
• Provide taxable services.

How to Collect Sales Tax in Key West

Since Florida is a destination-based sales tax sourcing state, the same applies to Key West. This implies that when you sell a taxable product in Florida, you should charge the sales tax rate of the buyer’s delivery address.

Florida sales tax rules apply to all interstate and intrastate sales made to a Florida delivery address.

For instance, if a business is located in Newark, New Jersey and sells to a buyer in Key West, Florida, they have to charge the buyer the Key West sales tax rate.    

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

How to File and Pay Sales Tax in Key West

Taxpayers have four options for filing and paying a Key West sales tax return:

• File and pay sales tax online at the Florida Department of Revenue website.
• File and pay by mail by using Florida form DR-15. 
• Or, you can say goodbye to the tedious paperwork and hello to stress-free sales tax management with Zamp. We help you automate sales tax filings, check your transactions, and manage the nitty-gritty of ongoing compliance without a third-party — wherever you are in the United States! 

With our white-glove onboarding, rooftop accurate calculations, proactive nexus monitoring, expert tax professional services, and click-to-approve sales tax registrations & filings, we take care of all the sales tax responsibilities for you. You can focus on your business and clients without worrying about the complexities of sales tax. We also ensure that you always stay compliant.