If you were unable to attend the Small Business Tax Planning Seminar 2015 for tax and accounting tips. Many topics covered: estimated tax payments, entity selection, costs, and other tips to stay on top of things.
Other resources from John Gillingham:
Learn Accounting: https://accountingplay.com/
Get the App: Lessons, Audio, and Illustrated Accounting Flashcards for iOS on Android
Get the App: Learn Accounting Debits and Credits with the game on iOS
My Innovative Accounting Books: Amazon Kindle
