Maintenance of records

5. a. A taxpayer that claims credit under this act shall maintain sufficient records to establish the following facts for each item of qualified equipment: (1) its identity; (2) its actual or reasonably determined cost; (3) its useful depreciation life; (4) the month and tax year in which it was placed in service; (5) the amount of credit taken; and (6) the date it was disposed of or otherwise ceased to be qualified equipment. b. A taxpayer that does not keep records required for identification of qualified equipment shall be treated as having disposed of, during the tax year, any qualified equipment which the taxpayer cannot establish was still on hand in this State at the end of that year. c. If a taxpayer cannot establish when qualified equipment reported for purposes of claiming this credit during a tax year was placed in service, the taxpayer shall be treated as having placed it in service in the most recent prior year in which similar property was placed in service unless the taxpayer can establish that the property placed in service in the most recent year is still on hand. In that event, the taxpayer shall be treated as having placed the property in service in the next most recent year. d. The burden of proof shall be on a taxpayer to establish by a preponderance of the evidence that the taxpayer is entitled to the credit allowed pursuant to this act.