You’re filling an order, you charge tax, and three days later a customer questions whether you billed them correctly. You freeze—because you don’t actually know whether the rate you’re using reflects your county’s current surtax. Most Florida small business owners apply a rate they heard about last year, or they copy the number from an old receipt, and they have no way to verify it’s right. This gap costs you credibility, and it creates compliance risk. Florida’s sales tax system stacks a state rate on top of county-level additions, and the combined total varies across the state. If you’re selling tangible goods or taxable services, you need to know both rates and apply them correctly to every transaction you report to the Florida Department of Revenue.
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Does this apply to your business in Florida?
Yes, if you sell tangible personal property or taxable services in Florida. Florida taxes most tangible goods unless they’re specifically exempt (groceries, prescription medication). Services are not taxable unless listed in state statute—the rule is backwards from what many assume. Your county’s surtax rate applies to taxable sales made within that county. File a DR-15 (Sales Tax Return) monthly to report combined state and county tax. The Florida Department of Revenue publishes current rates, and you must use the rate in effect for the period you’re reporting, not your favorite old number.
How the rate works
Florida sales tax has a two-part structure: a statewide rate (currently 6%) plus a county surtax that changes by location. You don’t add these rates yourself on a case-by-case basis; instead, you apply the combined rate for the county where the sale occurs. That combined rate is your default for every transaction in that location.
Each county in Florida has its own surtax, set by local ordinance. Duval County’s surtax differs from Broward’s, which differs from Hillsborough’s, and so on. The surtax is not a flat statewide surcharge—it’s a county decision, and it can change year to year. If you operate in more than one county, you apply the correct combined rate for each sale based on the delivery location or where the customer is located.
To find your county’s current surtax rate and the combined total, do not rely on memory or last year’s invoice. Visit the Florida Department of Revenue website directly, or use their sales tax rate calculator to confirm the rate in effect for your filing period. The calculator updates when rates change, and it’s the authoritative source in a dispute.
How to file step by step
You file a DR-15 (Florida Sales Tax Return) monthly to report your sales tax liability. The deadline is the 20th of the month following the month you’re reporting. Here’s the process:
Step 1: Gather your transaction data. Collect records of all taxable sales you made during the month you’re reporting. Your sales records—receipts, invoices, order forms—must clearly show the amount of tax you collected or should have collected from customers. If you’re using a point-of-sale system or accounting software, export a sales report broken down by county (if you operate across multiple counties) and by taxable vs. nontaxable items.
Step 2: Confirm the combined rate for your county. Before you calculate, verify the state + county surtax rate that was in effect during the month you’re reporting. Rates sometimes change mid-month or are adjusted retroactively. Use the Florida Department of Revenue calculator to lock in the exact combined rate. Write it down with the month and year it applies to.
Step 3: Calculate tax due. Multiply your taxable sales by the combined rate. If you had sales in multiple counties, calculate tax for each county separately, then add them. The result is your total tax due for the month. If your software does this automatically (as many accounting platforms do), verify the math by hand on a sample of transactions—don’t assume the software picked the right rate.
Step 4: Access the DR-15 form online. The Florida Department of Revenue publishes the DR-15 form on its website. You can file it electronically (required if your annual tax liability exceeds a certain threshold) or by paper mail. Most small businesses file online through the Department of Revenue’s online system, which walks you through each required field.
Step 5: Fill in the form fields. The DR-15 asks for your business registration number (assigned when you register with the Department of Revenue), your sales for the month (broken into categories: taxable sales, nontaxable sales, and any other categories that apply to you), and the tax you collected. Double-check your arithmetic before submitting. The form will calculate your total liability based on the rates you enter.
Step 6: Pay the amount due by the deadline. If you owe tax, you must pay it by the 20th of the following month. Pay online, by check, or by other method the Department of Revenue accepts. If you overpaid, you’ll receive a credit that applies to future months’ filings. Keep a copy of your filed return and payment confirmation for your records.
Common mistakes
Using last year’s rate for this year’s sales. Surtax rates can change, and using an old rate—even if you’re just off by a fraction of a percent—creates a mismatch between what you collected from customers and what you report to the state. If the new rate is higher and you collected at the old rate, you owe the difference. If it’s lower and you collected more, you’ll have an overpayment to reconcile. Check the Florida Department of Revenue website before each filing period and confirm the rate in effect for the month you’re reporting, not the month you’re filing.
Charging tax on nontaxable services. If you provide a service not listed in Florida statute as taxable—such as consulting, cleaning, accounting, or repair labor—the service itself is not subject to sales tax. Many service owners wrongly apply tax to their service revenue. Only the tangible materials you provide as part of the service are taxable (for example, a cleaning company charges tax on cleaning supplies used, but not on labor; a contractor charges tax on materials provided, but not on labor). Review your service offerings against the statute or ask your accountant which parts are taxable. If you’ve been overcharging, you may owe refunds to customers or need to adjust your future billing.
Applying the wrong county rate to remote or delivered sales. If a customer is in a different county from your business location, apply the rate for their county, not yours. This is common when you ship goods across state lines or deliver services to a customer’s location. Your point-of-sale system or invoice software should let you specify the delivery address or customer location so you apply the correct rate. If you’ve been applying your home county’s rate to all sales regardless of delivery location, you may owe back tax and interest on the difference. Update your system settings and recalculate past months if necessary.
Filing late or not reconciling overpayments. The deadline is fixed: the 20th of the month following the month you’re reporting. Missing the deadline triggers penalties and interest, even if you have no tax due. If you’ve overpaid in previous months, don’t assume the credit carries forward automatically. Review your Department of Revenue account and reconcile overpayments each quarter to avoid losing credits or misfiling future returns. Set a calendar reminder for the 20th of each month, or use accounting software that flags the deadline and pre-fills the form.
Frequently Asked Questions
Where do I find my county’s current surtax rate?
Visit the Florida Department of Revenue website and use their sales tax rate lookup tool. Enter your county name or your business address, and the tool shows the combined state + county rate in effect for the current filing period. Bookmark this page and check it before each return you file.
Can I use the same rate for all my customers no matter where they are?
No. If you ship to another Florida county or deliver services to a customer in a different county from your location, apply the rate for that county. If you sell to customers out of state, you don’t collect Florida tax on that sale. Your invoicing or point-of-sale system should allow you to set the tax rate by customer location so you don’t have to calculate it by hand every time.
What happens if I charge the wrong tax rate to a customer?
If you overcharged, you may owe a refund to the customer or need to issue a credit. If you undercharged, you owe the difference to the state (not to the customer). The Florida Department of Revenue will assess back tax and interest if you report incorrectly. The best practice is to reconcile your rate with the current official rate monthly and correct any prior-month errors on the current month’s return or by filing an amended return.
Do I need to file a DR-15 if I have no sales in a month?
Check the Florida Department of Revenue website or your registration certificate. Some registrations require filing even if sales are zero; others allow you to skip a return if you have no activity. File a zero return to be safe unless you’ve been explicitly excused. Missing a required return, even a zero return, can trigger penalties.
Can Outsourcing Processing calculate my county surtax for me?
Our platform organizes your transaction data and can categorize sales by location, and we provide a step-by-step guide to understanding how the Florida Department of Revenue categorizes taxable vs. nontaxable sales. You maintain full control of your filing and use the official Florida Department of Revenue rate calculator to confirm the combined rate for each county in which you operate. We help you organize the data so you can file accurately with your CPA or directly with the state.
This article is for general educational purposes and isn’t a substitute for advice from a licensed CPA or tax attorney. Rules vary by jurisdiction and change over time—always confirm current requirements with the Florida Department of Revenue or your advisor.
Staying accurate month to month
The single habit that prevents rate mistakes is a 30-second check before you file: look up your county’s current surtax on the Florida Department of Revenue website and confirm it matches the number you used to calculate tax that month. If rates change mid-month or you sell in multiple counties, a quick verification step prevents costly adjustments later. Knowing your rate, applying it consistently, and filing on time are the foundations of clean sales tax compliance. Our Florida sales tax guide walks through the full process and common pitfalls so you can file with confidence.
This article is for general educational purposes and isn’t a substitute for advice from a licensed CPA or tax attorney. Rules vary by jurisdiction and change over time — always confirm current requirements with the Florida Department of Revenue or your advisor.