The County issues local business tax receipts for one year, beginning Oct. 1 and expiring on Sept. 30.If you itemize your deductions, you can deduct your donations of materials to nonprofit organizations. Learn more about tax write offs for. Are you opening a new business and have finished your Certificate of Use approval (or you didn't need one)? Account Registration. The Marlins donate autographed memorabilia and ticket certificates in an effort to support charitable organizations that positively impact our community. The Miami-Dade County Tax Collector is required to hold a Tax Certificate Sale every year. Learn how you can bid in an online auction for tax certificates. The goal of this effort is to reduce food waste, recover wholesome excess food for donation, develop partnerships with local organizations to provide food for.