There is nothing more frightening  to a taxpayer than checking your mail and seeing a letter from the IRS  letting you know that you are being audited. Fortunately, if you follow  a few basic tips, you will find that an audit does not need to be as  scary as you might think.
1. Always be Prepared
The best way to survive an IRS audit  is to always be prepared for one. You never know when the IRS is going  to send you a letter informing you of an audit, so it is a good idea  to always file an honest tax return. Gather and retain receipts of all  claimed expenses and deductions. And hold onto all of your tax records  and important financial documents for at least 6 years.
 
2. Do not Ignore the Problem
When you get an audit letter from the  IRS, it is important that you do not just ignore the problem. You will  generally have 30 days to respond to the letter, otherwise the IRS can  take drastic actions such as adjusting your total tax liability. If  they find you owe them more money, then the IRS will send you a notice  regarding the back taxes owed and will begin collection activity. 
 
3. Organize Documents in Advance
The IRS’s letter should include a list  of items they would like to see such as canceled checks, receipts, bank  statements, etc. Before the actual audit, you should go through the  list and collect documentation of everything the IRS is requesting.
 
4. Get any Documentation you Might be Missing
If you find out that you are missing  an important document the IRS auditor wants to see, then it is a good  idea to get extra copies ahead of time. You can contact your bank and  credit card company to get copies of statements or receipts. It is important  to bring all of the documentation that has been requested when you show  up for the audit. If you do not, then odds are you will see your tax  liability increase. 
5. Bring Only what is Required
You should only bring documents to your  audit that the IRS has asked for. If the IRS did not ask you to verify  your home office or a business expense, then that means you do not need  to worry about it. There is no need to overwhelm the auditor with unrelated  receipts or documents, as this could only lead to additional questions.
 
6. Make Copies, and Keep the Originals
Before the audit, you should stop by  an office store or Kinko’s and make copies of all of your documentation  to give to the auditor. You should make absolutely sure that you keep  all of the original copies in your file cabinet in case you ever need  them again in the future.
7. Be Nice & Friendly
During the audit, you want to make sure  that you are nice and friendly to the auditor. No one likes paying taxes  and everyone hates being audited. However, being rude to the IRS representative  will do nothing positive for your case.
8. Admit your Mistakes
Everyone makes mistakes and tax returns  are no exception. It is always hard to admit a mistake, but when you  are faced with evidence from the IRS auditor, it is in your best interest  to acknowledge the error as opposed to arguing with the representative. 
 
9. Get Help if Needed
If you are worried about facing the IRS  on your own, or feel like your finances are over your head, then you  might want to enlist help from a CPA or qualified tax professional.  Just make sure that you find someone who is experienced in dealing with  IRS audits.
10. Know your Rights
Although an IRS audit can be very intimidating, you should not let the auditor walk all over you. Taxpayers have a specific set of rights when it comes to audits, such as the right to decide when and where it will tax place. For a full list of your audit rights checkout this page on IRS.gov.
