Your main quarterly obligation at the federal level is Form 941. This reports total wages paid, federal income tax withheld, and both the employer and employee portions of Social Security and Medicare taxes. You file it four times a year with due dates of April 30, July 31, October 31, and January 31. If the due date falls on a weekend or holiday, the deadline shifts to the next business day.

An important distinction that trips up many business owners is that filing and depositing are two different things. Even though you file Form 941 quarterly, your actual tax deposits usually need to happen more frequently. The IRS assigns you either a monthly or semi-weekly deposit schedule based on your total tax liability during a lookback period. New employers typically start as monthly depositors, meaning payroll taxes for a given month are due by the 15th of the following month. If your liability grows, the IRS may move you to a semi-weekly schedule. Missing deposits generates penalties that add up fast, even if you file the quarterly return on time.

In Florida, there is no state income tax withholding, which simplifies things compared to most other states. However, you still need to file the Reemployment Tax return (Form RT-6) with the Florida Department of Revenue each quarter. This is Florida’s version of state unemployment tax. The due dates align with the federal schedule. Your reemployment tax rate is assigned by the state and varies based on your industry and claims history. New employers receive a standard rate until they build enough history for an experience-based rate.

On the federal side, you also need to be aware of FUTA, the Federal Unemployment Tax. While the annual return (Form 940) is filed once a year in January, you may need to make quarterly FUTA deposits if your accumulated liability exceeds $500 in any quarter. This catches some business owners off guard because they think of unemployment tax as an annual item and then owe a deposit they didn’t plan for.

Penalties for late filing and late deposits are separate and they stack. A late Form 941 filing carries a penalty of 5% of the unpaid tax per month, up to 25%. Late deposits carry a tiered penalty structure starting at 2% for deposits one to five days late and climbing to 15% for amounts still unpaid after IRS notice. These penalties apply on top of interest.

Keeping all of this straight while running your business is exactly the kind of task that pulls owners away from the work that actually generates revenue. Many of the small businesses we work with in the Tampa Bay area hand off full-service payroll so deposits, filings, and year-end forms are handled without them having to track every deadline. If you prefer to manage payroll yourself, at a minimum build a calendar with every deposit and filing date so nothing slips through.

The quarterly filings themselves are straightforward once your systems are set up correctly. What causes problems is when the numbers on your returns don’t match your deposit records, or when W-4 withholding was set up incorrectly from the start. Getting the foundation right makes every quarter after that routine. If you need help thinking through your payroll setup as part of your overall financial strategy, that initial investment of time pays for itself many times over in avoided penalties and clean records.