There are a lot of myths going around  this tax season about IRS audits, fortunately the RDTC Tax Help Blog  has posted an entry debunking 10 of the most common myths. Below are  the first 5 items in the list, but you can view the full article at Top 10 IRS Tax Audit Myths.
1. Having a home office is an audit red flag.
This myth was more popular when fewer  people had home offices, but is definitely not true these days. Home  offices are quite common today, and it alone will no longer flag you  for an audit. However, that does not mean the IRS turns a blind eye  to home office deductions. They will review it to make sure that it  makes sense. If there is any reason for the IRS to believe that you  are improperly claiming the home office deduction, then look out.   
 
2. The mailing documents the IRS sends you are coded with audit flags.
This is false. The IRS sends you those  mailing documents to make the mailing process more secure and easier.  Failing to send your return in their provided envelope will probably  do nothing more than delay your return and cause you frustration.  
 
3. You can avoid being audited by filing late, after "audit season".
You would be surprised by how many people  swear this works for them every time. Sure it works, but only because  you start off with the odds against you being audited. Filing late or  early will not help or prevent you from being audited. The IRS can audit  you three years after the tax return in question is received.  
 
4. If you make under a certain amount then you cannot be audited.
Income levels also have no affect on  your audit probability. The IRS not only sends random audits to all  income levels, but they take the time to look at each and every return.  No matter what you make, if they believe that you are evading taxes  in any way, they will audit you.  
5. You cannot be audited once you have received your refund.
Receiving your refund just means the  IRS has reviewed your tax return and agreed with your calculations.  However, if they receive a return from a separate party who names you  and that information does not match your return, then you can still  be audited. And remember, the IRS can audit a return up to 3 years after  it is received. 
