Get your taxes done using TurboTax

The short answer is that you will highly benefit from a tax professional.  Assuming you are filing a calendar-year tax return, your late tax return for 2015 has already accrued at least $4680 in late penalties, plus interest.  While it is possible you may be able to get the waived, that just shows the importance of going to a tax professional to learn how to operate your business.