, citing federal statistics that tax fraud is the third largest theft of federal fundsPeople could start filing state income tax returns Wednesday, but they’ll be waiting at least a month for any refunds because of new computer software intended to crack down on tax fraud.

The Louisiana Department of Revenue said Feb. 26 is the earliest that tax filers will get their refunds.

The department announced that new computer software designed to prevent fraudulent electronic filing was rolled out for this year’s tax filing season. That identity verification software means the first taxpayer returns will be processed Feb. 15 and the first refunds issued a week and a half later, according to the department.

If a return is flagged as questionable, taxpayers will be directed to an online data test or telephone survey to verify their identities.

The Louisiana Department of Revenue said 82 percent of Louisiana taxpayers e-filed their state income tax returns for 2011. The de.