Deep vein thrombosis (throm-BO-sis), or DVT, is a blood clot that forms in a vein deep in the body. Blood clots occur when blood thickens and clumps together. Most deep vein blood clots occur in the lower leg or thigh.
See Also: Which Tax Software Is Best for You? The IRS generally has up to three years after the tax-filing deadline to initiate an audit, so keep your tax returns and supporting documents at least that longâin other words, after April 15 this year, hang on to returns and documents for tax years 2012 through 2014 .
Records Retention Guideline #3: Keep tax records for 6 years. The IRS may go back 6 years to audit your tax returns for errors or incorrectly claimed deductions â so itâs important that you keep all tax-related documents for that length of time, including: 1  Bank records. 2  Personnel and payroll records.