CT Scanners. Usually this instrument is used in the medical field, but it is also used in paleontology. In paleontology these are used to identify the reptiles and animals that are found in rocks without actually cracking the rocks.
4. You do not file a return: Keep records indefinitely. 5. You file a claim for credit or refund after you file your return: Keep records for three years from the date you filed your original return or two years from the date you paid the tax, whichever is later. 6. You file a claim for a loss from worthless securities or bad debt deduction: Keep records for seven years. 7.
You Should Keep Tax Records â But How, And For How Long? A pile of IRS Form 1040 tax documents is seen in this file photo. Personal finance experts recommend keeping most records for three years after they're used in a tax return. Tax Day 2012 is looming â and after we file our returns, many of us will try to figure out what to do with the seemingly innocuous but possibly crucial documents we use to prepare our returns.