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.
To be on the safe side, if you file a tax return, you should keep all records that relate or support that tax return for at least seventeen years (extended seven year limitations period plus ten year collections period).