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.
Trash After 7 Years. 1  Supporting documents for tax returns, including W2s, 1099s, tax-reporting statements, and proof of charitable contributions. 2  The IRS has three years to audit you unless there's a chance you underreported income or it suspects fraud.