The Missouri Department of Revenue is implementing new procedures to help curb identity theft and refund fraud. So it may take longer for Missouri to process some tax returns.
While, taxpayers will have the option to include their driver’s license information when electronically filing their 2015 Missouri tax return, Missouri says that “Returns will not be rejected if an individual fails to include this information…”
For more information, see http://dor.mo.gov/personal/individual/identity_theft.php