Definition and synonyms of poor from the online English dictionary from Macmillan Publishers Limited.
See IRS Publication 552, Recordkeeping for Individuals, for more information. Six Years. If you may have under-reported income by 25 percent or more, then you'll need to keep tax returns and all related information for six years.
Keep your tax records for a minimum of 3 years. After that, it depends on your situation as to the length of time. If you wrote off a bad debt, better keep them for 7 years. If you have a small business, 7 years may serve you best. Be sure to keep not only a copy of the return, but all the supporting documents.