There probably aren't any LEED-specific tax incentives, but there may be some more broad "green building" incentives.
- I typically reference the Database of State Incentives for Renewables and Efficiency (DSIRE) for a listing of some incentives. Here's a link to their Florida directory.
- You should also check with your electric utility and local building department to see if they have any green building incentives.
Remember that your biggest paybacks for a LEED home may not be quantifiable. The value of improved air quality, durability, lower utility bills, etc., all are hard to quantify.
For more information:
Read Rick Goyette's Q&A "What are the financial or tax incentives for building a LEED for Homes certified house?"