You’ve tracked sales, collected what you thought was the right amount of sales tax, and now you need to file your DR-15 return in Miami-Dade County. But the rates seem to shift, the deadlines aren’t clear, and you’re unsure whether you’ve even been charging the correct amount. Most small business owners file their sales tax returns reactively—after a notice arrives or when an accountant reminds them. That reactive approach costs you time, increases your error risk, and often means paying late fees you never expected. The DR-15 is Florida’s monthly sales tax return form, and filing it correctly and on time is one of the highest-compliance wins you can execute yourself, regardless of your industry or revenue size.
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Does this apply to your business in Florida?
If you make taxable sales in Miami-Dade County or have nexus there, you must file a DR-15. Florida taxes tangible personal property sales at the state rate plus a county surtax, unless the item is specifically exempt. Services are not taxable unless they appear on the Florida Department of Revenue‘s taxable services list. Your business is liable for the return if you collected sales tax during the month—even if you only made a handful of sales or are part-time. If you have no sales in a given month, you still file a zero return.
How the rate works
Florida’s sales tax structure has two layers: a state-level tax rate applied universally across Florida, plus a county surtax that varies by county and, in some cases, by district within the county. Miami-Dade County has its own surtax on top of the state rate. When you charge a customer, you combine both percentages into a single amount collected. For the exact current combined rate in your location within Miami-Dade County, check the Florida Department of Revenue website, which provides a rate calculator and county-by-county breakdowns. Rates can change annually, and some districts have special surtaxes, so relying on the official source is always faster than guessing.
How to file step by step
The DR-15 is filed online at the Florida Department of Revenue website. Log in to your account using your FEIN or business tax ID. Select the reporting period (the calendar month your sales occurred), then enter your total taxable sales and the tax collected. The form will show you the expected tax owed based on the combined state and county surtax rate. Review the amount, confirm it matches what you collected, and submit. If you collected more tax than the calculated amount, you may have overcharged and will need to adjust. If you collected less, you’ll owe the difference plus any applicable fees. The deadline to file is the 20th of the month following your sales period—for example, sales from January are due by February 20. Filing early eliminates the stress of a last-minute scramble and gives you time to investigate any discrepancies before the deadline passes.
Common mistakes
Forgetting exempt items and charging tax anyway. If you sell exempt tangible property or perform a non-taxable service, you should not have collected tax from the customer. When you file your DR-15, that transaction should not appear in your taxable sales figure. Many owners include all sales in the taxable line and overpay. Ask your CPA or review Florida’s sales tax guide to confirm which items you actually need to tax. Once you know, train your point-of-sale system or invoicing process to flag or exclude those items automatically.
Miscounting sales from different locations or sales channels. If you sell both in-person and online, or operate in multiple counties, it’s easy to assign a sale to the wrong jurisdiction. Sales shipped into Miami-Dade County are taxed at Miami-Dade rates, even if you’re based elsewhere. Set up your accounting records or transaction categorization by county from the start so you can split the DR-15 correctly. A transaction reporting platform with automatic categorization can save hours here and reduce the risk of under or overstating sales in each county.
Filing late or missing the deadline. The 20th-of-the-month deadline is firm. Late filing often triggers penalties and interest, and repeated late filings can draw audit scrutiny. Calendar the deadline two days early, set a phone reminder, or ask your bookkeeper or CPA to alert you. If you miss the deadline, file as soon as you realize it and contact the Department of Revenue to ask about penalty relief options.
Mixing up the state rate and the county surtax and entering the wrong total. You don’t file the state and county separately on the DR-15; you enter your total taxable sales and the combined tax collected. If you’ve been tracking the state rate and surtax as separate line items internally, convert them to a combined figure before filing. Double-check your math or use the official rate tool to verify the combined rate for your district.
Frequently Asked Questions
What if I have no sales in a month?
You still file a DR-15, but you enter zero for taxable sales and zero for tax collected. This is called a zero return. Filing a zero return keeps your account in good standing and prevents late-filing penalties. Missing the return entirely, even for a zero-sales month, can trigger compliance issues.
Do I need to file a separate DR-15 for each county I sell in?
Yes. If you make sales in Miami-Dade and, say, Broward County, you file two separate DR-15 returns—one for each county’s combined rate and tax collected. Your transaction records or categorization system should split sales by county so you can prepare each return accurately.
What happens if I discover I undercollected tax?
When you file your DR-15, if the expected tax (based on the combined rate and your sales) exceeds what you actually collected, you owe the difference. You pay it with that month’s return. Going forward, adjust your pricing or invoicing so you collect the correct amount. A transaction platform with automatic tax calculation can prevent this from recurring.
Can I file the DR-15 myself, or do I need a CPA?
You can file the DR-15 yourself. It’s designed for business owners to complete directly. However, the harder part is ensuring your transaction data is categorized correctly by type and location before you fill it out. If your books are confused or you’re unsure which sales are taxable, working with a CPA or using a transaction categorization platform can make the filing itself straightforward.
Are there other Florida sales tax forms I need to file besides the DR-15?
The DR-15 is your main monthly return. If you owe use tax (tax on items you purchased out-of-state for use in Florida), you report that on the same return. You may also file other forms if you claim refunds or have special circumstances, but the DR-15 is the core filing. Your CPA can advise if additional forms apply to your situation.
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.
Filing your DR-15 on time and accurately is one compliance habit that, once established, stops being a source of stress. Set a calendar reminder for the 19th of each month, gather your sales data organized by county and taxable category, and spend 10 minutes on the filing. You’ll stay compliant, avoid late fees, and build the kind of reliable record that makes working with a CPA easier and cheaper when you do need one.
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.
If you are comparing this against your Florida sales tax obligations, the complete Florida sales tax guide is the best next stop.