Some people expecting tax refunds may have to jump through an extra hoop to get them this year.
Jeremy Sampson is a spokesman for the Michigan Department of Treasury.
He says up to 100,000 letters will go out, asking people to verify their identity online, before they can get their refund.
It's to reduce identify theft and refund fraud, which is not a small problem.
"Last year the department was able to stop over 80,000 suspicious income tax refund requests," says Sampson, "and we were able to stop over $75 million of potentially fraudulent refunds."