Annual reports (renewals) are required before May 1 each year starting the year after initial registration to keep an LLC in compliance. You have the option to delay the effective date of registration until Jan 3 to avoid the 2024 payment.
This means the LLC does not actually take effect until Jan 3. You may not be able to open a bank account, and it may not show in a search of Florida businesses until that date, however it will be filed and a matter of public record upon submission.