Click on one of the sections below to be taken to that resource. Due Dates by Entity A useful list of IRS due dates for a number of Business and Personal Entitees. n Retention Guide Storing tax records: How long is enough? Check out our list of how long you should keep both Business & Personal records. h Tax Forms The Tax Organizer is a simple form that is easy to fill out and will provide all of the necessary information to prepare your taxes. Tax Rates Understand the tax rates throughout the years listed by several tax rate schedules.