Get your taxes done using TurboTax

Thank you so much for your time and your help.  I have basically finished the business tax return with Turbo Tax Business.  I was just waiting for an answer regarding the inventory.  We have a pretty basic business, so it's not super complicated.  I just worry about that penalty that you mentioned.  Since I basically have it done, I am tempted to just file it myself.  I am just worried about the fact that it is late and the penalty that you mentioned.  How would I go about providing the letter that you mentioned to explain the reason that it is late?  Any ideas?  Thank you.