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.
This applies to business expenses, as well as all other deductions and income items. Think Ahead. You will need to keep all records that support items on your tax return for at least four years after you file your tax return because the IRS may challenge your return for up to three years after its due date.