So what do you need to do and more importantly, what types of tax and financial documents do you really need to save and for how long?
Due to the IRS' clandestine approach to the audit process, taxpayers are often left in the dark as to why they are selected for an audit. A taxpayer's best defense against incurring any extra tax charges, fines or penalties is to keep comprehensive and organized records of the following financial documents many of which, thankfully, are now easily accessible via online.
In most cases, the IRS will request and review financial documents going back three years from the audit year. The agency can, however, request documents going back six years or even longer in cases where the IRS claims a taxpayer made an egregious or intentional error.
If the latter is the case, it's important to contact a criminal tax lawyer who handles criminal IRS defense matters. An attorney can answer questions, interact with the IRS and potentially help mitigate legal problems before they arise.
Source: CBS News, "How to defend yourself during a tax audit," Ann Dullaghan, Jan. 19, 2015
IRS.gov, “IRS Audit FAQs,” 2015