Lynwood, California - Basic Facts. The City of Lynwood had a population of 72,011 as of July 1, 2016. Lynwood ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in California.
Scanning the information gives you an electronic backup of the paper indefinitely. Keep returns and all supporting documentation at least seven years. The IRS can audit your return for up to three years from your filing date, a limit applying only to good-faith errors.
Tax returns and supporting documents. Anything to do with taxes should be kept for at least seven years. The IRS has three years from your filing date to audit your return if it suspects good faith errors and you have the same amount of time to file an amended return if you find a mistake.